Merge remote-tracking branch 'remotes/dgibson/tags/ppc-for-5.0-20191217' into staging

ppc patch queue 2019-12-17

This is the first pull request for the qemu-5.0 branch.  It has a lot
of accumulated changes, including:

    * SLOF update to support boot using the IOMMU (will become
      necessary for secure guests)

    * Clean ups to pnv handling of chip models

    * A number of extensions to the powernv machine model

    * TCG extensions to allow powernv emulated systems to run KVM guests

    * Outline support for POWER10 chips in powernv

    * Cleanups to the ibm,client-architecture-support feature negotiation path

    * XIVE reworks to better handle the powernv machine

    * Improvements to not waste interrupt queues and other semi-scarce
      resources when using XIVE under KVM

# gpg: Signature made Tue 17 Dec 2019 04:42:20 GMT
# gpg:                using RSA key 75F46586AE61A66CC44E87DC6C38CACA20D9B392
# gpg: Good signature from "David Gibson <david@gibson.dropbear.id.au>" [full]
# gpg:                 aka "David Gibson (Red Hat) <dgibson@redhat.com>" [full]
# gpg:                 aka "David Gibson (ozlabs.org) <dgibson@ozlabs.org>" [full]
# gpg:                 aka "David Gibson (kernel.org) <dwg@kernel.org>" [unknown]
# Primary key fingerprint: 75F4 6586 AE61 A66C C44E  87DC 6C38 CACA 20D9 B392

* remotes/dgibson/tags/ppc-for-5.0-20191217: (88 commits)
  pseries: Update SLOF firmware image
  ppc/pnv: Drop PnvChipClass::type
  ppc/pnv: Introduce PnvChipClass::xscom_pcba() method
  ppc/pnv: Drop pnv_chip_is_power9() and pnv_chip_is_power10() helpers
  ppc/pnv: Pass content of the "compatible" property to pnv_dt_xscom()
  ppc/pnv: Pass XSCOM base address and address size to pnv_dt_xscom()
  ppc/pnv: Introduce PnvChipClass::xscom_core_base() method
  ppc/pnv: Introduce PnvChipClass::intc_print_info() method
  ppc/pnv: Drop pnv_is_power9() and pnv_is_power10() helpers
  ppc/pnv: Introduce PnvMachineClass::dt_power_mgt()
  ppc/pnv: Introduce PnvMachineClass and PnvMachineClass::compat
  ppc/pnv: Drop PnvPsiClass::chip_type
  ppc/pnv: Introduce PnvPsiClass::compat
  ppc: Drop useless extern annotation for functions
  ppc/pnv: Fix OCC common area region mapping
  ppc/pnv: Introduce PBA registers
  ppc/pnv: Make PnvXScomInterface an incomplete type
  ppc/pnv: populate the DT with realized XSCOM devices
  ppc/pnv: Loop on the whole hierarchy to populate the DT with the XSCOM nodes
  target/ppc: Add SPR TBU40
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

65 files changed, 2454 insertions, 955 deletions

diff --git a/hw/intc/pnv_xive.c b/hw/intc/pnv_xive.c
index 348f2fd..a0a69b9 100644
--- a/hw/intc/pnv_xive.c
+++ b/hw/intc/pnv_xive.c
@@ -29,7 +29,7 @@
 
 #include "pnv_xive_regs.h"
 
-#define XIVE_DEBUG
+#undef XIVE_DEBUG
 
 /*
  * Virtual structures table (VST)
@@ -86,12 +86,29 @@ static inline uint64_t SETFIELD(uint64_t mask, uint64_t word,
 }
 
 /*
+ * When PC_TCTXT_CHIPID_OVERRIDE is configured, the PC_TCTXT_CHIPID
+ * field overrides the hardwired chip ID in the Powerbus operations
+ * and for CAM compares
+ */
+static uint8_t pnv_xive_block_id(PnvXive *xive)
+{
+    uint8_t blk = xive->chip->chip_id;
+    uint64_t cfg_val = xive->regs[PC_TCTXT_CFG >> 3];
+
+    if (cfg_val & PC_TCTXT_CHIPID_OVERRIDE) {
+        blk = GETFIELD(PC_TCTXT_CHIPID, cfg_val);
+    }
+
+    return blk;
+}
+
+/*
  * Remote access to controllers. HW uses MMIOs. For now, a simple scan
  * of the chips is good enough.
  *
  * TODO: Block scope support
  */
-static PnvXive *pnv_xive_get_ic(uint8_t blk)
+static PnvXive *pnv_xive_get_remote(uint8_t blk)
 {
     PnvMachineState *pnv = PNV_MACHINE(qdev_get_machine());
     int i;
@@ -100,7 +117,7 @@ static PnvXive *pnv_xive_get_ic(uint8_t blk)
         Pnv9Chip *chip9 = PNV9_CHIP(pnv->chips[i]);
         PnvXive *xive = &chip9->xive;
 
-        if (xive->chip->chip_id == blk) {
+        if (pnv_xive_block_id(xive) == blk) {
             return xive;
         }
     }
@@ -123,36 +140,22 @@ static uint64_t pnv_xive_vst_page_size_allowed(uint32_t page_shift)
          page_shift == 21 || page_shift == 24;
 }
 
-static uint64_t pnv_xive_vst_size(uint64_t vsd)
-{
-    uint64_t vst_tsize = 1ull << (GETFIELD(VSD_TSIZE, vsd) + 12);
-
-    /*
-     * Read the first descriptor to get the page size of the indirect
-     * table.
-     */
-    if (VSD_INDIRECT & vsd) {
-        uint32_t nr_pages = vst_tsize / XIVE_VSD_SIZE;
-        uint32_t page_shift;
-
-        vsd = ldq_be_dma(&address_space_memory, vsd & VSD_ADDRESS_MASK);
-        page_shift = GETFIELD(VSD_TSIZE, vsd) + 12;
-
-        if (!pnv_xive_vst_page_size_allowed(page_shift)) {
-            return 0;
-        }
-
-        return nr_pages * (1ull << page_shift);
-    }
-
-    return vst_tsize;
-}
-
 static uint64_t pnv_xive_vst_addr_direct(PnvXive *xive, uint32_t type,
                                          uint64_t vsd, uint32_t idx)
 {
     const XiveVstInfo *info = &vst_infos[type];
     uint64_t vst_addr = vsd & VSD_ADDRESS_MASK;
+    uint64_t vst_tsize = 1ull << (GETFIELD(VSD_TSIZE, vsd) + 12);
+    uint32_t idx_max;
+
+    idx_max = vst_tsize / info->size - 1;
+    if (idx > idx_max) {
+#ifdef XIVE_DEBUG
+        xive_error(xive, "VST: %s entry %x out of range [ 0 .. %x ] !?",
+                   info->name, idx, idx_max);
+#endif
+        return 0;
+    }
 
     return vst_addr + idx * info->size;
 }
@@ -171,7 +174,9 @@ static uint64_t pnv_xive_vst_addr_indirect(PnvXive *xive, uint32_t type,
     vsd = ldq_be_dma(&address_space_memory, vsd_addr);
 
     if (!(vsd & VSD_ADDRESS_MASK)) {
+#ifdef XIVE_DEBUG
         xive_error(xive, "VST: invalid %s entry %x !?", info->name, idx);
+#endif
         return 0;
     }
 
@@ -192,7 +197,9 @@ static uint64_t pnv_xive_vst_addr_indirect(PnvXive *xive, uint32_t type,
         vsd = ldq_be_dma(&address_space_memory, vsd_addr);
 
         if (!(vsd & VSD_ADDRESS_MASK)) {
+#ifdef XIVE_DEBUG
             xive_error(xive, "VST: invalid %s entry %x !?", info->name, idx);
+#endif
             return 0;
         }
 
@@ -215,7 +222,6 @@ static uint64_t pnv_xive_vst_addr(PnvXive *xive, uint32_t type, uint8_t blk,
 {
     const XiveVstInfo *info = &vst_infos[type];
     uint64_t vsd;
-    uint32_t idx_max;
 
     if (blk >= info->max_blocks) {
         xive_error(xive, "VST: invalid block id %d for VST %s %d !?",
@@ -227,20 +233,11 @@ static uint64_t pnv_xive_vst_addr(PnvXive *xive, uint32_t type, uint8_t blk,
 
     /* Remote VST access */
     if (GETFIELD(VSD_MODE, vsd) == VSD_MODE_FORWARD) {
-        xive = pnv_xive_get_ic(blk);
+        xive = pnv_xive_get_remote(blk);
 
         return xive ? pnv_xive_vst_addr(xive, type, blk, idx) : 0;
     }
 
-    idx_max = pnv_xive_vst_size(vsd) / info->size - 1;
-    if (idx > idx_max) {
-#ifdef XIVE_DEBUG
-        xive_error(xive, "VST: %s entry %x/%x out of range [ 0 .. %x ] !?",
-                   info->name, blk, idx, idx_max);
-#endif
-        return 0;
-    }
-
     if (VSD_INDIRECT & vsd) {
         return pnv_xive_vst_addr_indirect(xive, type, vsd, idx);
     }
@@ -384,7 +381,10 @@ static int pnv_xive_get_eas(XiveRouter *xrtr, uint8_t blk, uint32_t idx,
 {
     PnvXive *xive = PNV_XIVE(xrtr);
 
-    if (pnv_xive_get_ic(blk) != xive) {
+    /*
+     * EAT lookups should be local to the IC
+     */
+    if (pnv_xive_block_id(xive) != blk) {
         xive_error(xive, "VST: EAS %x is remote !?", XIVE_EAS(blk, idx));
         return -1;
     }
@@ -392,31 +392,97 @@ static int pnv_xive_get_eas(XiveRouter *xrtr, uint8_t blk, uint32_t idx,
     return pnv_xive_vst_read(xive, VST_TSEL_IVT, blk, idx, eas);
 }
 
-static XiveTCTX *pnv_xive_get_tctx(XiveRouter *xrtr, CPUState *cs)
+/*
+ * One bit per thread id. The first register PC_THREAD_EN_REG0 covers
+ * the first cores 0-15 (normal) of the chip or 0-7 (fused). The
+ * second register covers cores 16-23 (normal) or 8-11 (fused).
+ */
+static bool pnv_xive_is_cpu_enabled(PnvXive *xive, PowerPCCPU *cpu)
 {
-    PowerPCCPU *cpu = POWERPC_CPU(cs);
-    XiveTCTX *tctx = XIVE_TCTX(pnv_cpu_state(cpu)->intc);
-    PnvXive *xive = NULL;
-    CPUPPCState *env = &cpu->env;
-    int pir = env->spr_cb[SPR_PIR].default_value;
+    int pir = ppc_cpu_pir(cpu);
+    uint32_t fc = PNV9_PIR2FUSEDCORE(pir);
+    uint64_t reg = fc < 8 ? PC_THREAD_EN_REG0 : PC_THREAD_EN_REG1;
+    uint32_t bit = pir & 0x3f;
 
-    /*
-     * Perform an extra check on the HW thread enablement.
-     *
-     * The TIMA is shared among the chips and to identify the chip
-     * from which the access is being done, we extract the chip id
-     * from the PIR.
-     */
-    xive = pnv_xive_get_ic((pir >> 8) & 0xf);
-    if (!xive) {
-        return NULL;
-    }
+    return xive->regs[reg >> 3] & PPC_BIT(bit);
+}
+
+static int pnv_xive_match_nvt(XivePresenter *xptr, uint8_t format,
+                              uint8_t nvt_blk, uint32_t nvt_idx,
+                              bool cam_ignore, uint8_t priority,
+                              uint32_t logic_serv, XiveTCTXMatch *match)
+{
+    PnvXive *xive = PNV_XIVE(xptr);
+    PnvChip *chip = xive->chip;
+    int count = 0;
+    int i, j;
+
+    for (i = 0; i < chip->nr_cores; i++) {
+        PnvCore *pc = chip->cores[i];
+        CPUCore *cc = CPU_CORE(pc);
+
+        for (j = 0; j < cc->nr_threads; j++) {
+            PowerPCCPU *cpu = pc->threads[j];
+            XiveTCTX *tctx;
+            int ring;
+
+            if (!pnv_xive_is_cpu_enabled(xive, cpu)) {
+                continue;
+            }
 
-    if (!(xive->regs[PC_THREAD_EN_REG0 >> 3] & PPC_BIT(pir & 0x3f))) {
-        xive_error(PNV_XIVE(xrtr), "IC: CPU %x is not enabled", pir);
+            tctx = XIVE_TCTX(pnv_cpu_state(cpu)->intc);
+
+            /*
+             * Check the thread context CAM lines and record matches.
+             */
+            ring = xive_presenter_tctx_match(xptr, tctx, format, nvt_blk,
+                                             nvt_idx, cam_ignore, logic_serv);
+            /*
+             * Save the context and follow on to catch duplicates, that we
+             * don't support yet.
+             */
+            if (ring != -1) {
+                if (match->tctx) {
+                    qemu_log_mask(LOG_GUEST_ERROR, "XIVE: already found a "
+                                  "thread context NVT %x/%x\n",
+                                  nvt_blk, nvt_idx);
+                    return -1;
+                }
+
+                match->ring = ring;
+                match->tctx = tctx;
+                count++;
+            }
+        }
     }
 
-    return tctx;
+    return count;
+}
+
+static uint8_t pnv_xive_get_block_id(XiveRouter *xrtr)
+{
+    return pnv_xive_block_id(PNV_XIVE(xrtr));
+}
+
+/*
+ * The TIMA MMIO space is shared among the chips and to identify the
+ * chip from which the access is being done, we extract the chip id
+ * from the PIR.
+ */
+static PnvXive *pnv_xive_tm_get_xive(PowerPCCPU *cpu)
+{
+    int pir = ppc_cpu_pir(cpu);
+    PnvChip *chip;
+    PnvXive *xive;
+
+    chip = pnv_get_chip(PNV9_PIR2CHIP(pir));
+    assert(chip);
+    xive = &PNV9_CHIP(chip)->xive;
+
+    if (!pnv_xive_is_cpu_enabled(xive, cpu)) {
+        xive_error(xive, "IC: CPU %x is not enabled", pir);
+    }
+    return xive;
 }
 
 /*
@@ -429,7 +495,7 @@ static XiveTCTX *pnv_xive_get_tctx(XiveRouter *xrtr, CPUState *cs)
 static void pnv_xive_notify(XiveNotifier *xn, uint32_t srcno)
 {
     PnvXive *xive = PNV_XIVE(xn);
-    uint8_t blk = xive->chip->chip_id;
+    uint8_t blk = pnv_xive_block_id(xive);
 
     xive_router_notify(xn, XIVE_EAS(blk, srcno));
 }
@@ -453,19 +519,50 @@ static uint64_t pnv_xive_pc_size(PnvXive *xive)
     return (~xive->regs[CQ_PC_BARM >> 3] + 1) & CQ_PC_BARM_MASK;
 }
 
-static uint32_t pnv_xive_nr_ipis(PnvXive *xive)
+static uint32_t pnv_xive_nr_ipis(PnvXive *xive, uint8_t blk)
 {
-    uint8_t blk = xive->chip->chip_id;
+    uint64_t vsd = xive->vsds[VST_TSEL_SBE][blk];
+    uint64_t vst_tsize = 1ull << (GETFIELD(VSD_TSIZE, vsd) + 12);
 
-    return pnv_xive_vst_size(xive->vsds[VST_TSEL_SBE][blk]) * SBE_PER_BYTE;
+    return VSD_INDIRECT & vsd ? 0 : vst_tsize * SBE_PER_BYTE;
 }
 
-static uint32_t pnv_xive_nr_ends(PnvXive *xive)
+/*
+ * Compute the number of entries per indirect subpage.
+ */
+static uint64_t pnv_xive_vst_per_subpage(PnvXive *xive, uint32_t type)
 {
-    uint8_t blk = xive->chip->chip_id;
+    uint8_t blk = pnv_xive_block_id(xive);
+    uint64_t vsd = xive->vsds[type][blk];
+    const XiveVstInfo *info = &vst_infos[type];
+    uint64_t vsd_addr;
+    uint32_t page_shift;
+
+    /* For direct tables, fake a valid value */
+    if (!(VSD_INDIRECT & vsd)) {
+        return 1;
+    }
+
+    /* Get the page size of the indirect table. */
+    vsd_addr = vsd & VSD_ADDRESS_MASK;
+    vsd = ldq_be_dma(&address_space_memory, vsd_addr);
 
-    return pnv_xive_vst_size(xive->vsds[VST_TSEL_EQDT][blk])
-        / vst_infos[VST_TSEL_EQDT].size;
+    if (!(vsd & VSD_ADDRESS_MASK)) {
+#ifdef XIVE_DEBUG
+        xive_error(xive, "VST: invalid %s entry %x !?", info->name, idx);
+#endif
+        return 0;
+    }
+
+    page_shift = GETFIELD(VSD_TSIZE, vsd) + 12;
+
+    if (!pnv_xive_vst_page_size_allowed(page_shift)) {
+        xive_error(xive, "VST: invalid %s page shift %d", info->name,
+                   page_shift);
+        return 0;
+    }
+
+    return (1ull << page_shift) / info->size;
 }
 
 /*
@@ -598,6 +695,7 @@ static void pnv_xive_vst_set_exclusive(PnvXive *xive, uint8_t type,
     XiveSource *xsrc = &xive->ipi_source;
     const XiveVstInfo *info = &vst_infos[type];
     uint32_t page_shift = GETFIELD(VSD_TSIZE, vsd) + 12;
+    uint64_t vst_tsize = 1ull << page_shift;
     uint64_t vst_addr = vsd & VSD_ADDRESS_MASK;
 
     /* Basic checks */
@@ -633,11 +731,16 @@ static void pnv_xive_vst_set_exclusive(PnvXive *xive, uint8_t type,
 
     case VST_TSEL_EQDT:
         /*
-         * Backing store pages for the END. Compute the number of ENDs
-         * provisioned by FW and resize the END ESB window accordingly.
+         * Backing store pages for the END.
+         *
+         * If the table is direct, we can compute the number of PQ
+         * entries provisioned by FW (such as skiboot) and resize the
+         * END ESB window accordingly.
          */
-        memory_region_set_size(&end_xsrc->esb_mmio, pnv_xive_nr_ends(xive) *
-                               (1ull << (end_xsrc->esb_shift + 1)));
+        if (!(VSD_INDIRECT & vsd)) {
+            memory_region_set_size(&end_xsrc->esb_mmio, (vst_tsize / info->size)
+                                   * (1ull << xsrc->esb_shift));
+        }
         memory_region_add_subregion(&xive->end_edt_mmio, 0,
                                     &end_xsrc->esb_mmio);
         break;
@@ -646,11 +749,16 @@ static void pnv_xive_vst_set_exclusive(PnvXive *xive, uint8_t type,
         /*
          * Backing store pages for the source PQ bits. The model does
          * not use these PQ bits backed in RAM because the XiveSource
-         * model has its own. Compute the number of IRQs provisioned
-         * by FW and resize the IPI ESB window accordingly.
+         * model has its own.
+         *
+         * If the table is direct, we can compute the number of PQ
+         * entries provisioned by FW (such as skiboot) and resize the
+         * ESB window accordingly.
          */
-        memory_region_set_size(&xsrc->esb_mmio, pnv_xive_nr_ipis(xive) *
-                               (1ull << xsrc->esb_shift));
+        if (!(VSD_INDIRECT & vsd)) {
+            memory_region_set_size(&xsrc->esb_mmio, vst_tsize * SBE_PER_BYTE
+                                   * (1ull << xsrc->esb_shift));
+        }
         memory_region_add_subregion(&xive->ipi_edt_mmio, 0, &xsrc->esb_mmio);
         break;
 
@@ -789,20 +897,7 @@ static void pnv_xive_ic_reg_write(void *opaque, hwaddr offset,
     case PC_TCTXT_CFG:
         /*
          * TODO: block group support
-         *
-         * PC_TCTXT_CFG_BLKGRP_EN
-         * PC_TCTXT_CFG_HARD_CHIPID_BLK :
-         *   Moves the chipid into block field for hardwired CAM compares.
-         *   Block offset value is adjusted to 0b0..01 & ThrdId
-         *
-         *   Will require changes in xive_presenter_tctx_match(). I am
-         *   not sure how to handle that yet.
          */
-
-        /* Overrides hardwired chip ID with the chip ID field */
-        if (val & PC_TCTXT_CHIPID_OVERRIDE) {
-            xive->tctx_chipid = GETFIELD(PC_TCTXT_CHIPID, val);
-        }
         break;
     case PC_TCTXT_TRACK:
         /*
@@ -1349,12 +1444,13 @@ static const MemoryRegionOps pnv_xive_ic_lsi_ops = {
  */
 
 /*
- * When the TIMA is accessed from the indirect page, the thread id
- * (PIR) has to be configured in the IC registers before. This is used
- * for resets and for debug purpose also.
+ * When the TIMA is accessed from the indirect page, the thread id of
+ * the target CPU is configured in the PC_TCTXT_INDIR0 register before
+ * use. This is used for resets and for debug purpose also.
  */
 static XiveTCTX *pnv_xive_get_indirect_tctx(PnvXive *xive)
 {
+    PnvChip *chip = xive->chip;
     uint64_t tctxt_indir = xive->regs[PC_TCTXT_INDIR0 >> 3];
     PowerPCCPU *cpu = NULL;
     int pir;
@@ -1364,15 +1460,15 @@ static XiveTCTX *pnv_xive_get_indirect_tctx(PnvXive *xive)
         return NULL;
     }
 
-    pir = GETFIELD(PC_TCTXT_INDIR_THRDID, tctxt_indir) & 0xff;
-    cpu = ppc_get_vcpu_by_pir(pir);
+    pir = (chip->chip_id << 8) | GETFIELD(PC_TCTXT_INDIR_THRDID, tctxt_indir);
+    cpu = pnv_chip_find_cpu(chip, pir);
     if (!cpu) {
         xive_error(xive, "IC: invalid PIR %x for indirect access", pir);
         return NULL;
     }
 
     /* Check that HW thread is XIVE enabled */
-    if (!(xive->regs[PC_THREAD_EN_REG0 >> 3] & PPC_BIT(pir & 0x3f))) {
+    if (!pnv_xive_is_cpu_enabled(xive, cpu)) {
         xive_error(xive, "IC: CPU %x is not enabled", pir);
     }
 
@@ -1384,7 +1480,7 @@ static void xive_tm_indirect_write(void *opaque, hwaddr offset,
 {
     XiveTCTX *tctx = pnv_xive_get_indirect_tctx(PNV_XIVE(opaque));
 
-    xive_tctx_tm_write(tctx, offset, value, size);
+    xive_tctx_tm_write(XIVE_PRESENTER(opaque), tctx, offset, value, size);
 }
 
 static uint64_t xive_tm_indirect_read(void *opaque, hwaddr offset,
@@ -1392,7 +1488,7 @@ static uint64_t xive_tm_indirect_read(void *opaque, hwaddr offset,
 {
     XiveTCTX *tctx = pnv_xive_get_indirect_tctx(PNV_XIVE(opaque));
 
-    return xive_tctx_tm_read(tctx, offset, size);
+    return xive_tctx_tm_read(XIVE_PRESENTER(opaque), tctx, offset, size);
 }
 
 static const MemoryRegionOps xive_tm_indirect_ops = {
@@ -1409,6 +1505,39 @@ static const MemoryRegionOps xive_tm_indirect_ops = {
     },
 };
 
+static void pnv_xive_tm_write(void *opaque, hwaddr offset,
+                              uint64_t value, unsigned size)
+{
+    PowerPCCPU *cpu = POWERPC_CPU(current_cpu);
+    PnvXive *xive = pnv_xive_tm_get_xive(cpu);
+    XiveTCTX *tctx = XIVE_TCTX(pnv_cpu_state(cpu)->intc);
+
+    xive_tctx_tm_write(XIVE_PRESENTER(xive), tctx, offset, value, size);
+}
+
+static uint64_t pnv_xive_tm_read(void *opaque, hwaddr offset, unsigned size)
+{
+    PowerPCCPU *cpu = POWERPC_CPU(current_cpu);
+    PnvXive *xive = pnv_xive_tm_get_xive(cpu);
+    XiveTCTX *tctx = XIVE_TCTX(pnv_cpu_state(cpu)->intc);
+
+    return xive_tctx_tm_read(XIVE_PRESENTER(xive), tctx, offset, size);
+}
+
+const MemoryRegionOps pnv_xive_tm_ops = {
+    .read = pnv_xive_tm_read,
+    .write = pnv_xive_tm_write,
+    .endianness = DEVICE_BIG_ENDIAN,
+    .valid = {
+        .min_access_size = 1,
+        .max_access_size = 8,
+    },
+    .impl = {
+        .min_access_size = 1,
+        .max_access_size = 8,
+    },
+};
+
 /*
  * Interrupt controller XSCOM region.
  */
@@ -1574,23 +1703,40 @@ static const MemoryRegionOps pnv_xive_pc_ops = {
     },
 };
 
+static void xive_nvt_pic_print_info(XiveNVT *nvt, uint32_t nvt_idx,
+                                    Monitor *mon)
+{
+    uint8_t  eq_blk = xive_get_field32(NVT_W1_EQ_BLOCK, nvt->w1);
+    uint32_t eq_idx = xive_get_field32(NVT_W1_EQ_INDEX, nvt->w1);
+
+    if (!xive_nvt_is_valid(nvt)) {
+        return;
+    }
+
+    monitor_printf(mon, "  %08x end:%02x/%04x IPB:%02x\n", nvt_idx,
+                   eq_blk, eq_idx,
+                   xive_get_field32(NVT_W4_IPB, nvt->w4));
+}
+
 void pnv_xive_pic_print_info(PnvXive *xive, Monitor *mon)
 {
     XiveRouter *xrtr = XIVE_ROUTER(xive);
-    uint8_t blk = xive->chip->chip_id;
+    uint8_t blk = pnv_xive_block_id(xive);
+    uint8_t chip_id = xive->chip->chip_id;
     uint32_t srcno0 = XIVE_EAS(blk, 0);
-    uint32_t nr_ipis = pnv_xive_nr_ipis(xive);
-    uint32_t nr_ends = pnv_xive_nr_ends(xive);
+    uint32_t nr_ipis = pnv_xive_nr_ipis(xive, blk);
     XiveEAS eas;
     XiveEND end;
+    XiveNVT nvt;
     int i;
+    uint64_t xive_nvt_per_subpage;
 
-    monitor_printf(mon, "XIVE[%x] Source %08x .. %08x\n", blk, srcno0,
-                   srcno0 + nr_ipis - 1);
+    monitor_printf(mon, "XIVE[%x] #%d Source %08x .. %08x\n", chip_id, blk,
+                   srcno0, srcno0 + nr_ipis - 1);
     xive_source_pic_print_info(&xive->ipi_source, srcno0, mon);
 
-    monitor_printf(mon, "XIVE[%x] EAT %08x .. %08x\n", blk, srcno0,
-                   srcno0 + nr_ipis - 1);
+    monitor_printf(mon, "XIVE[%x] #%d EAT %08x .. %08x\n", chip_id, blk,
+                   srcno0, srcno0 + nr_ipis - 1);
     for (i = 0; i < nr_ipis; i++) {
         if (xive_router_get_eas(xrtr, blk, i, &eas)) {
             break;
@@ -1600,21 +1746,25 @@ void pnv_xive_pic_print_info(PnvXive *xive, Monitor *mon)
         }
     }
 
-    monitor_printf(mon, "XIVE[%x] ENDT %08x .. %08x\n", blk, 0, nr_ends - 1);
-    for (i = 0; i < nr_ends; i++) {
-        if (xive_router_get_end(xrtr, blk, i, &end)) {
-            break;
-        }
-        xive_end_pic_print_info(&end, i, mon);
+    monitor_printf(mon, "XIVE[%x] #%d ENDT\n", chip_id, blk);
+    i = 0;
+    while (!xive_router_get_end(xrtr, blk, i, &end)) {
+        xive_end_pic_print_info(&end, i++, mon);
     }
 
-    monitor_printf(mon, "XIVE[%x] END Escalation %08x .. %08x\n", blk, 0,
-                   nr_ends - 1);
-    for (i = 0; i < nr_ends; i++) {
-        if (xive_router_get_end(xrtr, blk, i, &end)) {
-            break;
+    monitor_printf(mon, "XIVE[%x] #%d END Escalation EAT\n", chip_id, blk);
+    i = 0;
+    while (!xive_router_get_end(xrtr, blk, i, &end)) {
+        xive_end_eas_pic_print_info(&end, i++, mon);
+    }
+
+    monitor_printf(mon, "XIVE[%x] #%d NVTT %08x .. %08x\n", chip_id, blk,
+                   0, XIVE_NVT_COUNT - 1);
+    xive_nvt_per_subpage = pnv_xive_vst_per_subpage(xive, VST_TSEL_VPDT);
+    for (i = 0; i < XIVE_NVT_COUNT; i += xive_nvt_per_subpage) {
+        while (!xive_router_get_nvt(xrtr, blk, i, &nvt)) {
+            xive_nvt_pic_print_info(&nvt, i++, mon);
         }
-        xive_end_eas_pic_print_info(&end, i, mon);
     }
 }
 
@@ -1624,12 +1774,6 @@ static void pnv_xive_reset(void *dev)
     XiveSource *xsrc = &xive->ipi_source;
     XiveENDSource *end_xsrc = &xive->end_source;
 
-    /*
-     * Use the PnvChip id to identify the XIVE interrupt controller.
-     * It can be overriden by configuration at runtime.
-     */
-    xive->tctx_chipid = xive->chip->chip_id;
-
     /* Default page size (Should be changed at runtime to 64k) */
     xive->ic_shift = xive->vc_shift = xive->pc_shift = 12;
 
@@ -1675,17 +1819,8 @@ static void pnv_xive_realize(DeviceState *dev, Error **errp)
     XiveSource *xsrc = &xive->ipi_source;
     XiveENDSource *end_xsrc = &xive->end_source;
     Error *local_err = NULL;
-    Object *obj;
 
-    obj = object_property_get_link(OBJECT(dev), "chip", &local_err);
-    if (!obj) {
-        error_propagate(errp, local_err);
-        error_prepend(errp, "required link 'chip' not found: ");
-        return;
-    }
-
-    /* The PnvChip id identifies the XIVE interrupt controller. */
-    xive->chip = PNV_CHIP(obj);
+    assert(xive->chip);
 
     /*
      * The XiveSource and XiveENDSource objects are realized with the
@@ -1695,8 +1830,8 @@ static void pnv_xive_realize(DeviceState *dev, Error **errp)
      */
     object_property_set_int(OBJECT(xsrc), PNV_XIVE_NR_IRQS, "nr-irqs",
                             &error_fatal);
-    object_property_add_const_link(OBJECT(xsrc), "xive", OBJECT(xive),
-                                   &error_fatal);
+    object_property_set_link(OBJECT(xsrc), OBJECT(xive), "xive",
+                             &error_abort);
     object_property_set_bool(OBJECT(xsrc), true, "realized", &local_err);
     if (local_err) {
         error_propagate(errp, local_err);
@@ -1705,8 +1840,8 @@ static void pnv_xive_realize(DeviceState *dev, Error **errp)
 
     object_property_set_int(OBJECT(end_xsrc), PNV_XIVE_NR_ENDS, "nr-ends",
                             &error_fatal);
-    object_property_add_const_link(OBJECT(end_xsrc), "xive", OBJECT(xive),
-                                   &error_fatal);
+    object_property_set_link(OBJECT(end_xsrc), OBJECT(xive), "xive",
+                             &error_abort);
     object_property_set_bool(OBJECT(end_xsrc), true, "realized", &local_err);
     if (local_err) {
         error_propagate(errp, local_err);
@@ -1766,7 +1901,7 @@ static void pnv_xive_realize(DeviceState *dev, Error **errp)
                           "xive-pc", PNV9_XIVE_PC_SIZE);
 
     /* Thread Interrupt Management Area (Direct) */
-    memory_region_init_io(&xive->tm_mmio, OBJECT(xive), &xive_tm_ops,
+    memory_region_init_io(&xive->tm_mmio, OBJECT(xive), &pnv_xive_tm_ops,
                           xive, "xive-tima", PNV9_XIVE_TM_SIZE);
 
     qemu_register_reset(pnv_xive_reset, dev);
@@ -1800,6 +1935,8 @@ static Property pnv_xive_properties[] = {
     DEFINE_PROP_UINT64("vc-bar", PnvXive, vc_base, 0),
     DEFINE_PROP_UINT64("pc-bar", PnvXive, pc_base, 0),
     DEFINE_PROP_UINT64("tm-bar", PnvXive, tm_base, 0),
+    /* The PnvChip id identifies the XIVE interrupt controller. */
+    DEFINE_PROP_LINK("chip", PnvXive, chip, TYPE_PNV_CHIP, PnvChip *),
     DEFINE_PROP_END_OF_LIST(),
 };
 
@@ -1809,6 +1946,7 @@ static void pnv_xive_class_init(ObjectClass *klass, void *data)
     PnvXScomInterfaceClass *xdc = PNV_XSCOM_INTERFACE_CLASS(klass);
     XiveRouterClass *xrc = XIVE_ROUTER_CLASS(klass);
     XiveNotifierClass *xnc = XIVE_NOTIFIER_CLASS(klass);
+    XivePresenterClass *xpc = XIVE_PRESENTER_CLASS(klass);
 
     xdc->dt_xscom = pnv_xive_dt_xscom;
 
@@ -1821,9 +1959,10 @@ static void pnv_xive_class_init(ObjectClass *klass, void *data)
     xrc->write_end = pnv_xive_write_end;
     xrc->get_nvt = pnv_xive_get_nvt;
     xrc->write_nvt = pnv_xive_write_nvt;
-    xrc->get_tctx = pnv_xive_get_tctx;
+    xrc->get_block_id = pnv_xive_get_block_id;
 
     xnc->notify = pnv_xive_notify;
+    xpc->match_nvt  = pnv_xive_match_nvt;
 };
 
 static const TypeInfo pnv_xive_info = {
diff --git a/hw/intc/spapr_xive.c b/hw/intc/spapr_xive.c
index 9cb8d38..57305c5 100644
--- a/hw/intc/spapr_xive.c
+++ b/hw/intc/spapr_xive.c
@@ -205,6 +205,35 @@ void spapr_xive_mmio_set_enabled(SpaprXive *xive, bool enable)
     memory_region_set_enabled(&xive->end_source.esb_mmio, false);
 }
 
+static void spapr_xive_tm_write(void *opaque, hwaddr offset,
+                          uint64_t value, unsigned size)
+{
+    XiveTCTX *tctx = spapr_cpu_state(POWERPC_CPU(current_cpu))->tctx;
+
+    xive_tctx_tm_write(XIVE_PRESENTER(opaque), tctx, offset, value, size);
+}
+
+static uint64_t spapr_xive_tm_read(void *opaque, hwaddr offset, unsigned size)
+{
+    XiveTCTX *tctx = spapr_cpu_state(POWERPC_CPU(current_cpu))->tctx;
+
+    return xive_tctx_tm_read(XIVE_PRESENTER(opaque), tctx, offset, size);
+}
+
+const MemoryRegionOps spapr_xive_tm_ops = {
+    .read = spapr_xive_tm_read,
+    .write = spapr_xive_tm_write,
+    .endianness = DEVICE_BIG_ENDIAN,
+    .valid = {
+        .min_access_size = 1,
+        .max_access_size = 8,
+    },
+    .impl = {
+        .min_access_size = 1,
+        .max_access_size = 8,
+    },
+};
+
 static void spapr_xive_end_reset(XiveEND *end)
 {
     memset(end, 0, sizeof(*end));
@@ -276,8 +305,8 @@ static void spapr_xive_realize(DeviceState *dev, Error **errp)
      */
     object_property_set_int(OBJECT(xsrc), xive->nr_irqs, "nr-irqs",
                             &error_fatal);
-    object_property_add_const_link(OBJECT(xsrc), "xive", OBJECT(xive),
-                                   &error_fatal);
+    object_property_set_link(OBJECT(xsrc), OBJECT(xive), "xive",
+                             &error_abort);
     object_property_set_bool(OBJECT(xsrc), true, "realized", &local_err);
     if (local_err) {
         error_propagate(errp, local_err);
@@ -290,8 +319,8 @@ static void spapr_xive_realize(DeviceState *dev, Error **errp)
      */
     object_property_set_int(OBJECT(end_xsrc), xive->nr_irqs, "nr-ends",
                             &error_fatal);
-    object_property_add_const_link(OBJECT(end_xsrc), "xive", OBJECT(xive),
-                                   &error_fatal);
+    object_property_set_link(OBJECT(end_xsrc), OBJECT(xive), "xive",
+                             &error_abort);
     object_property_set_bool(OBJECT(end_xsrc), true, "realized", &local_err);
     if (local_err) {
         error_propagate(errp, local_err);
@@ -314,8 +343,8 @@ static void spapr_xive_realize(DeviceState *dev, Error **errp)
     qemu_register_reset(spapr_xive_reset, dev);
 
     /* TIMA initialization */
-    memory_region_init_io(&xive->tm_mmio, OBJECT(xive), &xive_tm_ops, xive,
-                          "xive.tima", 4ull << TM_SHIFT);
+    memory_region_init_io(&xive->tm_mmio, OBJECT(xive), &spapr_xive_tm_ops,
+                          xive, "xive.tima", 4ull << TM_SHIFT);
     sysbus_init_mmio(SYS_BUS_DEVICE(xive), &xive->tm_mmio);
 
     /*
@@ -398,11 +427,55 @@ static int spapr_xive_write_nvt(XiveRouter *xrtr, uint8_t nvt_blk,
     g_assert_not_reached();
 }
 
-static XiveTCTX *spapr_xive_get_tctx(XiveRouter *xrtr, CPUState *cs)
+static int spapr_xive_match_nvt(XivePresenter *xptr, uint8_t format,
+                                uint8_t nvt_blk, uint32_t nvt_idx,
+                                bool cam_ignore, uint8_t priority,
+                                uint32_t logic_serv, XiveTCTXMatch *match)
 {
-    PowerPCCPU *cpu = POWERPC_CPU(cs);
+    CPUState *cs;
+    int count = 0;
+
+    CPU_FOREACH(cs) {
+        PowerPCCPU *cpu = POWERPC_CPU(cs);
+        XiveTCTX *tctx = spapr_cpu_state(cpu)->tctx;
+        int ring;
+
+        /*
+         * Skip partially initialized vCPUs. This can happen when
+         * vCPUs are hotplugged.
+         */
+        if (!tctx) {
+            continue;
+        }
 
-    return spapr_cpu_state(cpu)->tctx;
+        /*
+         * Check the thread context CAM lines and record matches.
+         */
+        ring = xive_presenter_tctx_match(xptr, tctx, format, nvt_blk, nvt_idx,
+                                         cam_ignore, logic_serv);
+        /*
+         * Save the matching thread interrupt context and follow on to
+         * check for duplicates which are invalid.
+         */
+        if (ring != -1) {
+            if (match->tctx) {
+                qemu_log_mask(LOG_GUEST_ERROR, "XIVE: already found a thread "
+                              "context NVT %x/%x\n", nvt_blk, nvt_idx);
+                return -1;
+            }
+
+            match->ring = ring;
+            match->tctx = tctx;
+            count++;
+        }
+    }
+
+    return count;
+}
+
+static uint8_t spapr_xive_get_block_id(XiveRouter *xrtr)
+{
+    return SPAPR_XIVE_BLOCK_ID;
 }
 
 static const VMStateDescription vmstate_spapr_xive_end = {
@@ -651,12 +724,14 @@ static void spapr_xive_dt(SpaprInterruptController *intc, uint32_t nr_servers,
                      plat_res_int_priorities, sizeof(plat_res_int_priorities)));
 }
 
-static int spapr_xive_activate(SpaprInterruptController *intc, Error **errp)
+static int spapr_xive_activate(SpaprInterruptController *intc,
+                               uint32_t nr_servers, Error **errp)
 {
     SpaprXive *xive = SPAPR_XIVE(intc);
 
     if (kvm_enabled()) {
-        int rc = spapr_irq_init_kvm(kvmppc_xive_connect, intc, errp);
+        int rc = spapr_irq_init_kvm(kvmppc_xive_connect, intc, nr_servers,
+                                    errp);
         if (rc < 0) {
             return rc;
         }
@@ -684,6 +759,7 @@ static void spapr_xive_class_init(ObjectClass *klass, void *data)
     DeviceClass *dc = DEVICE_CLASS(klass);
     XiveRouterClass *xrc = XIVE_ROUTER_CLASS(klass);
     SpaprInterruptControllerClass *sicc = SPAPR_INTC_CLASS(klass);
+    XivePresenterClass *xpc = XIVE_PRESENTER_CLASS(klass);
 
     dc->desc    = "sPAPR XIVE Interrupt Controller";
     dc->props   = spapr_xive_properties;
@@ -695,7 +771,7 @@ static void spapr_xive_class_init(ObjectClass *klass, void *data)
     xrc->write_end = spapr_xive_write_end;
     xrc->get_nvt = spapr_xive_get_nvt;
     xrc->write_nvt = spapr_xive_write_nvt;
-    xrc->get_tctx = spapr_xive_get_tctx;
+    xrc->get_block_id = spapr_xive_get_block_id;
 
     sicc->activate = spapr_xive_activate;
     sicc->deactivate = spapr_xive_deactivate;
@@ -708,6 +784,8 @@ static void spapr_xive_class_init(ObjectClass *klass, void *data)
     sicc->print_info = spapr_xive_print_info;
     sicc->dt = spapr_xive_dt;
     sicc->post_load = spapr_xive_post_load;
+
+    xpc->match_nvt  = spapr_xive_match_nvt;
 }
 
 static const TypeInfo spapr_xive_info = {
diff --git a/hw/intc/spapr_xive_kvm.c b/hw/intc/spapr_xive_kvm.c
index 08012ac..32b2809 100644
--- a/hw/intc/spapr_xive_kvm.c
+++ b/hw/intc/spapr_xive_kvm.c
@@ -152,7 +152,8 @@ void kvmppc_xive_cpu_synchronize_state(XiveTCTX *tctx, Error **errp)
 
 void kvmppc_xive_cpu_connect(XiveTCTX *tctx, Error **errp)
 {
-    SpaprXive *xive = SPAPR_MACHINE(qdev_get_machine())->xive;
+    MachineState *ms = MACHINE(qdev_get_machine());
+    SpaprXive *xive = SPAPR_MACHINE(ms)->xive;
     unsigned long vcpu_id;
     int ret;
 
@@ -171,8 +172,16 @@ void kvmppc_xive_cpu_connect(XiveTCTX *tctx, Error **errp)
     ret = kvm_vcpu_enable_cap(tctx->cs, KVM_CAP_PPC_IRQ_XIVE, 0, xive->fd,
                               vcpu_id, 0);
     if (ret < 0) {
-        error_setg(errp, "XIVE: unable to connect CPU%ld to KVM device: %s",
+        Error *local_err = NULL;
+
+        error_setg(&local_err,
+                   "XIVE: unable to connect CPU%ld to KVM device: %s",
                    vcpu_id, strerror(errno));
+        if (errno == ENOSPC) {
+            error_append_hint(&local_err, "Try -smp maxcpus=N with N < %u\n",
+                              ms->smp.max_cpus);
+        }
+        error_propagate(errp, local_err);
         return;
     }
 
@@ -354,32 +363,20 @@ static void kvmppc_xive_source_get_state(XiveSource *xsrc)
 void kvmppc_xive_source_set_irq(void *opaque, int srcno, int val)
 {
     XiveSource *xsrc = opaque;
-    SpaprXive *xive = SPAPR_XIVE(xsrc->xive);
-    struct kvm_irq_level args;
-    int rc;
 
-    /* The KVM XIVE device should be in use */
-    assert(xive->fd != -1);
-
-    args.irq = srcno;
     if (!xive_source_irq_is_lsi(xsrc, srcno)) {
         if (!val) {
             return;
         }
-        args.level = KVM_INTERRUPT_SET;
     } else {
         if (val) {
             xsrc->status[srcno] |= XIVE_STATUS_ASSERTED;
-            args.level = KVM_INTERRUPT_SET_LEVEL;
         } else {
             xsrc->status[srcno] &= ~XIVE_STATUS_ASSERTED;
-            args.level = KVM_INTERRUPT_UNSET;
         }
     }
-    rc = kvm_vm_ioctl(kvm_state, KVM_IRQ_LINE, &args);
-    if (rc < 0) {
-        error_report("XIVE: kvm_irq_line() failed : %s", strerror(errno));
-    }
+
+    xive_esb_trigger(xsrc, srcno);
 }
 
 /*
@@ -740,7 +737,8 @@ static void *kvmppc_xive_mmap(SpaprXive *xive, int pgoff, size_t len,
  * All the XIVE memory regions are now backed by mappings from the KVM
  * XIVE device.
  */
-int kvmppc_xive_connect(SpaprInterruptController *intc, Error **errp)
+int kvmppc_xive_connect(SpaprInterruptController *intc, uint32_t nr_servers,
+                        Error **errp)
 {
     SpaprXive *xive = SPAPR_XIVE(intc);
     XiveSource *xsrc = &xive->source;
@@ -769,6 +767,16 @@ int kvmppc_xive_connect(SpaprInterruptController *intc, Error **errp)
         return -1;
     }
 
+    /* Tell KVM about the # of VCPUs we may have */
+    if (kvm_device_check_attr(xive->fd, KVM_DEV_XIVE_GRP_CTRL,
+                              KVM_DEV_XIVE_NR_SERVERS)) {
+        if (kvm_device_access(xive->fd, KVM_DEV_XIVE_GRP_CTRL,
+                              KVM_DEV_XIVE_NR_SERVERS, &nr_servers, true,
+                              &local_err)) {
+            goto fail;
+        }
+    }
+
     /*
      * 1. Source ESB pages - KVM mapping
      */
diff --git a/hw/intc/xics.c b/hw/intc/xics.c
index e7ac9ba..1952009 100644
--- a/hw/intc/xics.c
+++ b/hw/intc/xics.c
@@ -289,9 +289,6 @@ void icp_reset(ICPState *icp)
     icp->pending_priority = 0xff;
     icp->mfrr = 0xff;
 
-    /* Make all outputs are deasserted */
-    qemu_set_irq(icp->output, 0);
-
     if (kvm_irqchip_in_kernel()) {
         Error *local_err = NULL;
 
@@ -305,33 +302,13 @@ void icp_reset(ICPState *icp)
 static void icp_realize(DeviceState *dev, Error **errp)
 {
     ICPState *icp = ICP(dev);
-    PowerPCCPU *cpu;
     CPUPPCState *env;
-    Object *obj;
     Error *err = NULL;
 
-    obj = object_property_get_link(OBJECT(dev), ICP_PROP_XICS, &err);
-    if (!obj) {
-        error_propagate_prepend(errp, err,
-                                "required link '" ICP_PROP_XICS
-                                "' not found: ");
-        return;
-    }
-
-    icp->xics = XICS_FABRIC(obj);
-
-    obj = object_property_get_link(OBJECT(dev), ICP_PROP_CPU, &err);
-    if (!obj) {
-        error_propagate_prepend(errp, err,
-                                "required link '" ICP_PROP_CPU
-                                "' not found: ");
-        return;
-    }
-
-    cpu = POWERPC_CPU(obj);
-    icp->cs = CPU(obj);
+    assert(icp->xics);
+    assert(icp->cs);
 
-    env = &cpu->env;
+    env = &POWERPC_CPU(icp->cs)->env;
     switch (PPC_INPUT(env)) {
     case PPC_FLAGS_INPUT_POWER7:
         icp->output = env->irq_inputs[POWER7_INPUT_INT];
@@ -368,12 +345,20 @@ static void icp_unrealize(DeviceState *dev, Error **errp)
     vmstate_unregister(NULL, &vmstate_icp_server, icp);
 }
 
+static Property icp_properties[] = {
+    DEFINE_PROP_LINK(ICP_PROP_XICS, ICPState, xics, TYPE_XICS_FABRIC,
+                     XICSFabric *),
+    DEFINE_PROP_LINK(ICP_PROP_CPU, ICPState, cs, TYPE_CPU, CPUState *),
+    DEFINE_PROP_END_OF_LIST(),
+};
+
 static void icp_class_init(ObjectClass *klass, void *data)
 {
     DeviceClass *dc = DEVICE_CLASS(klass);
 
     dc->realize = icp_realize;
     dc->unrealize = icp_unrealize;
+    dc->props = icp_properties;
     /*
      * Reason: part of XICS interrupt controller, needs to be wired up
      * by icp_create().
@@ -397,11 +382,8 @@ Object *icp_create(Object *cpu, const char *type, XICSFabric *xi, Error **errp)
     obj = object_new(type);
     object_property_add_child(cpu, type, obj, &error_abort);
     object_unref(obj);
-    object_ref(OBJECT(xi));
-    object_property_add_const_link(obj, ICP_PROP_XICS, OBJECT(xi),
-                                   &error_abort);
-    object_ref(cpu);
-    object_property_add_const_link(obj, ICP_PROP_CPU, cpu, &error_abort);
+    object_property_set_link(obj, OBJECT(xi), ICP_PROP_XICS, &error_abort);
+    object_property_set_link(obj, cpu, ICP_PROP_CPU, &error_abort);
     object_property_set_bool(obj, true, "realized", &local_err);
     if (local_err) {
         object_unparent(obj);
@@ -416,8 +398,6 @@ void icp_destroy(ICPState *icp)
 {
     Object *obj = OBJECT(icp);
 
-    object_unref(object_property_get_link(obj, ICP_PROP_CPU, &error_abort));
-    object_unref(object_property_get_link(obj, ICP_PROP_XICS, &error_abort));
     object_unparent(obj);
 }
 
@@ -609,17 +589,8 @@ static void ics_reset_handler(void *dev)
 static void ics_realize(DeviceState *dev, Error **errp)
 {
     ICSState *ics = ICS(dev);
-    Error *local_err = NULL;
-    Object *obj;
 
-    obj = object_property_get_link(OBJECT(dev), ICS_PROP_XICS, &local_err);
-    if (!obj) {
-        error_propagate_prepend(errp, local_err,
-                                "required link '" ICS_PROP_XICS
-                                "' not found: ");
-        return;
-    }
-    ics->xics = XICS_FABRIC(obj);
+    assert(ics->xics);
 
     if (!ics->nr_irqs) {
         error_setg(errp, "Number of interrupts needs to be greater 0");
@@ -699,6 +670,8 @@ static const VMStateDescription vmstate_ics = {
 
 static Property ics_properties[] = {
     DEFINE_PROP_UINT32("nr-irqs", ICSState, nr_irqs, 0),
+    DEFINE_PROP_LINK(ICS_PROP_XICS, ICSState, xics, TYPE_XICS_FABRIC,
+                     XICSFabric *),
     DEFINE_PROP_END_OF_LIST(),
 };
 
diff --git a/hw/intc/xics_kvm.c b/hw/intc/xics_kvm.c
index 954c424..8d61565 100644
--- a/hw/intc/xics_kvm.c
+++ b/hw/intc/xics_kvm.c
@@ -165,8 +165,15 @@ void icp_kvm_realize(DeviceState *dev, Error **errp)
 
     ret = kvm_vcpu_enable_cap(cs, KVM_CAP_IRQ_XICS, 0, kernel_xics_fd, vcpu_id);
     if (ret < 0) {
-        error_setg(errp, "Unable to connect CPU%ld to kernel XICS: %s", vcpu_id,
-                   strerror(errno));
+        Error *local_err = NULL;
+
+        error_setg(&local_err, "Unable to connect CPU%ld to kernel XICS: %s",
+                   vcpu_id, strerror(errno));
+        if (errno == ENOSPC) {
+            error_append_hint(&local_err, "Try -smp maxcpus=N with N < %u\n",
+                              MACHINE(qdev_get_machine())->smp.max_cpus);
+        }
+        error_propagate(errp, local_err);
         return;
     }
     enabled_icp = g_malloc(sizeof(*enabled_icp));
@@ -342,7 +349,8 @@ void ics_kvm_set_irq(ICSState *ics, int srcno, int val)
     }
 }
 
-int xics_kvm_connect(SpaprInterruptController *intc, Error **errp)
+int xics_kvm_connect(SpaprInterruptController *intc, uint32_t nr_servers,
+                     Error **errp)
 {
     ICSState *ics = ICS_SPAPR(intc);
     int rc;
@@ -398,6 +406,16 @@ int xics_kvm_connect(SpaprInterruptController *intc, Error **errp)
         goto fail;
     }
 
+    /* Tell KVM about the # of VCPUs we may have (POWER9 and newer only) */
+    if (kvm_device_check_attr(rc, KVM_DEV_XICS_GRP_CTRL,
+                              KVM_DEV_XICS_NR_SERVERS)) {
+        if (kvm_device_access(rc, KVM_DEV_XICS_GRP_CTRL,
+                              KVM_DEV_XICS_NR_SERVERS, &nr_servers, true,
+                              &local_err)) {
+            goto fail;
+        }
+    }
+
     kernel_xics_fd = rc;
     kvm_kernel_irqchip = true;
     kvm_msi_via_irqfd_allowed = true;
diff --git a/hw/intc/xics_spapr.c b/hw/intc/xics_spapr.c
index b3705da..8ae4f41 100644
--- a/hw/intc/xics_spapr.c
+++ b/hw/intc/xics_spapr.c
@@ -422,10 +422,11 @@ static int xics_spapr_post_load(SpaprInterruptController *intc, int version_id)
     return 0;
 }
 
-static int xics_spapr_activate(SpaprInterruptController *intc, Error **errp)
+static int xics_spapr_activate(SpaprInterruptController *intc,
+                               uint32_t nr_servers, Error **errp)
 {
     if (kvm_enabled()) {
-        return spapr_irq_init_kvm(xics_kvm_connect, intc, errp);
+        return spapr_irq_init_kvm(xics_kvm_connect, intc, nr_servers, errp);
     }
     return 0;
 }
diff --git a/hw/intc/xive.c b/hw/intc/xive.c
index 75dce82..d4c6e21 100644
--- a/hw/intc/xive.c
+++ b/hw/intc/xive.c
@@ -47,12 +47,6 @@ static uint8_t ipb_to_pipr(uint8_t ibp)
     return ibp ? clz32((uint32_t)ibp << 24) : 0xff;
 }
 
-static void ipb_update(uint8_t *regs, uint8_t priority)
-{
-    regs[TM_IPB] |= priority_to_ipb(priority);
-    regs[TM_PIPR] = ipb_to_pipr(regs[TM_IPB]);
-}
-
 static uint8_t exception_mask(uint8_t ring)
 {
     switch (ring) {
@@ -135,6 +129,15 @@ static void xive_tctx_set_cppr(XiveTCTX *tctx, uint8_t ring, uint8_t cppr)
     xive_tctx_notify(tctx, ring);
 }
 
+void xive_tctx_ipb_update(XiveTCTX *tctx, uint8_t ring, uint8_t ipb)
+{
+    uint8_t *regs = &tctx->regs[ring];
+
+    regs[TM_IPB] |= ipb;
+    regs[TM_PIPR] = ipb_to_pipr(regs[TM_IPB]);
+    xive_tctx_notify(tctx, ring);
+}
+
 static inline uint32_t xive_tctx_word2(uint8_t *ring)
 {
     return *((uint32_t *) &ring[TM_WORD2]);
@@ -144,19 +147,20 @@ static inline uint32_t xive_tctx_word2(uint8_t *ring)
  * XIVE Thread Interrupt Management Area (TIMA)
  */
 
-static void xive_tm_set_hv_cppr(XiveTCTX *tctx, hwaddr offset,
-                                uint64_t value, unsigned size)
+static void xive_tm_set_hv_cppr(XivePresenter *xptr, XiveTCTX *tctx,
+                                hwaddr offset, uint64_t value, unsigned size)
 {
     xive_tctx_set_cppr(tctx, TM_QW3_HV_PHYS, value & 0xff);
 }
 
-static uint64_t xive_tm_ack_hv_reg(XiveTCTX *tctx, hwaddr offset, unsigned size)
+static uint64_t xive_tm_ack_hv_reg(XivePresenter *xptr, XiveTCTX *tctx,
+                                   hwaddr offset, unsigned size)
 {
     return xive_tctx_accept(tctx, TM_QW3_HV_PHYS);
 }
 
-static uint64_t xive_tm_pull_pool_ctx(XiveTCTX *tctx, hwaddr offset,
-                                      unsigned size)
+static uint64_t xive_tm_pull_pool_ctx(XivePresenter *xptr, XiveTCTX *tctx,
+                                      hwaddr offset, unsigned size)
 {
     uint32_t qw2w2_prev = xive_tctx_word2(&tctx->regs[TM_QW2_HV_POOL]);
     uint32_t qw2w2;
@@ -166,13 +170,14 @@ static uint64_t xive_tm_pull_pool_ctx(XiveTCTX *tctx, hwaddr offset,
     return qw2w2;
 }
 
-static void xive_tm_vt_push(XiveTCTX *tctx, hwaddr offset,
+static void xive_tm_vt_push(XivePresenter *xptr, XiveTCTX *tctx, hwaddr offset,
                             uint64_t value, unsigned size)
 {
     tctx->regs[TM_QW3_HV_PHYS + TM_WORD2] = value & 0xff;
 }
 
-static uint64_t xive_tm_vt_poll(XiveTCTX *tctx, hwaddr offset, unsigned size)
+static uint64_t xive_tm_vt_poll(XivePresenter *xptr, XiveTCTX *tctx,
+                                hwaddr offset, unsigned size)
 {
     return tctx->regs[TM_QW3_HV_PHYS + TM_WORD2] & 0xff;
 }
@@ -315,13 +320,14 @@ static uint64_t xive_tm_raw_read(XiveTCTX *tctx, hwaddr offset, unsigned size)
  * state changes (side effects) in addition to setting/returning the
  * interrupt management area context of the processor thread.
  */
-static uint64_t xive_tm_ack_os_reg(XiveTCTX *tctx, hwaddr offset, unsigned size)
+static uint64_t xive_tm_ack_os_reg(XivePresenter *xptr, XiveTCTX *tctx,
+                                   hwaddr offset, unsigned size)
 {
     return xive_tctx_accept(tctx, TM_QW1_OS);
 }
 
-static void xive_tm_set_os_cppr(XiveTCTX *tctx, hwaddr offset,
-                                uint64_t value, unsigned size)
+static void xive_tm_set_os_cppr(XivePresenter *xptr, XiveTCTX *tctx,
+                                hwaddr offset, uint64_t value, unsigned size)
 {
     xive_tctx_set_cppr(tctx, TM_QW1_OS, value & 0xff);
 }
@@ -330,24 +336,114 @@ static void xive_tm_set_os_cppr(XiveTCTX *tctx, hwaddr offset,
  * Adjust the IPB to allow a CPU to process event queues of other
  * priorities during one physical interrupt cycle.
  */
-static void xive_tm_set_os_pending(XiveTCTX *tctx, hwaddr offset,
-                                   uint64_t value, unsigned size)
+static void xive_tm_set_os_pending(XivePresenter *xptr, XiveTCTX *tctx,
+                                   hwaddr offset, uint64_t value, unsigned size)
 {
-    ipb_update(&tctx->regs[TM_QW1_OS], value & 0xff);
-    xive_tctx_notify(tctx, TM_QW1_OS);
+    xive_tctx_ipb_update(tctx, TM_QW1_OS, priority_to_ipb(value & 0xff));
 }
 
-static uint64_t xive_tm_pull_os_ctx(XiveTCTX *tctx, hwaddr offset,
-                                    unsigned size)
+static void xive_os_cam_decode(uint32_t cam, uint8_t *nvt_blk,
+                               uint32_t *nvt_idx, bool *vo)
 {
-    uint32_t qw1w2_prev = xive_tctx_word2(&tctx->regs[TM_QW1_OS]);
-    uint32_t qw1w2;
+    if (nvt_blk) {
+        *nvt_blk = xive_nvt_blk(cam);
+    }
+    if (nvt_idx) {
+        *nvt_idx = xive_nvt_idx(cam);
+    }
+    if (vo) {
+        *vo = !!(cam & TM_QW1W2_VO);
+    }
+}
+
+static uint32_t xive_tctx_get_os_cam(XiveTCTX *tctx, uint8_t *nvt_blk,
+                                     uint32_t *nvt_idx, bool *vo)
+{
+    uint32_t qw1w2 = xive_tctx_word2(&tctx->regs[TM_QW1_OS]);
+    uint32_t cam = be32_to_cpu(qw1w2);
 
-    qw1w2 = xive_set_field32(TM_QW1W2_VO, qw1w2_prev, 0);
+    xive_os_cam_decode(cam, nvt_blk, nvt_idx, vo);
+    return qw1w2;
+}
+
+static void xive_tctx_set_os_cam(XiveTCTX *tctx, uint32_t qw1w2)
+{
     memcpy(&tctx->regs[TM_QW1_OS + TM_WORD2], &qw1w2, 4);
+}
+
+static uint64_t xive_tm_pull_os_ctx(XivePresenter *xptr, XiveTCTX *tctx,
+                                    hwaddr offset, unsigned size)
+{
+    uint32_t qw1w2;
+    uint32_t qw1w2_new;
+    uint8_t nvt_blk;
+    uint32_t nvt_idx;
+    bool vo;
+
+    qw1w2 = xive_tctx_get_os_cam(tctx, &nvt_blk, &nvt_idx, &vo);
+
+    if (!vo) {
+        qemu_log_mask(LOG_GUEST_ERROR, "XIVE: pulling invalid NVT %x/%x !?\n",
+                      nvt_blk, nvt_idx);
+    }
+
+    /* Invalidate CAM line */
+    qw1w2_new = xive_set_field32(TM_QW1W2_VO, qw1w2, 0);
+    xive_tctx_set_os_cam(tctx, qw1w2_new);
     return qw1w2;
 }
 
+static void xive_tctx_need_resend(XiveRouter *xrtr, XiveTCTX *tctx,
+                                  uint8_t nvt_blk, uint32_t nvt_idx)
+{
+    XiveNVT nvt;
+    uint8_t ipb;
+
+    /*
+     * Grab the associated NVT to pull the pending bits, and merge
+     * them with the IPB of the thread interrupt context registers
+     */
+    if (xive_router_get_nvt(xrtr, nvt_blk, nvt_idx, &nvt)) {
+        qemu_log_mask(LOG_GUEST_ERROR, "XIVE: invalid NVT %x/%x\n",
+                          nvt_blk, nvt_idx);
+        return;
+    }
+
+    ipb = xive_get_field32(NVT_W4_IPB, nvt.w4);
+
+    if (ipb) {
+        /* Reset the NVT value */
+        nvt.w4 = xive_set_field32(NVT_W4_IPB, nvt.w4, 0);
+        xive_router_write_nvt(xrtr, nvt_blk, nvt_idx, &nvt, 4);
+
+        /* Merge in current context */
+        xive_tctx_ipb_update(tctx, TM_QW1_OS, ipb);
+    }
+}
+
+/*
+ * Updating the OS CAM line can trigger a resend of interrupt
+ */
+static void xive_tm_push_os_ctx(XivePresenter *xptr, XiveTCTX *tctx,
+                                hwaddr offset, uint64_t value, unsigned size)
+{
+    uint32_t cam = value;
+    uint32_t qw1w2 = cpu_to_be32(cam);
+    uint8_t nvt_blk;
+    uint32_t nvt_idx;
+    bool vo;
+
+    xive_os_cam_decode(cam, &nvt_blk, &nvt_idx, &vo);
+
+    /* First update the registers */
+    xive_tctx_set_os_cam(tctx, qw1w2);
+
+    /* Check the interrupt pending bits */
+    if (vo) {
+        xive_tctx_need_resend(XIVE_ROUTER(xptr), tctx, nvt_blk, nvt_idx);
+    }
+}
+
 /*
  * Define a mapping of "special" operations depending on the TIMA page
  * offset and the size of the operation.
@@ -356,9 +452,11 @@ typedef struct XiveTmOp {
     uint8_t  page_offset;
     uint32_t op_offset;
     unsigned size;
-    void     (*write_handler)(XiveTCTX *tctx, hwaddr offset, uint64_t value,
-                              unsigned size);
-    uint64_t (*read_handler)(XiveTCTX *tctx, hwaddr offset, unsigned size);
+    void     (*write_handler)(XivePresenter *xptr, XiveTCTX *tctx,
+                              hwaddr offset,
+                              uint64_t value, unsigned size);
+    uint64_t (*read_handler)(XivePresenter *xptr, XiveTCTX *tctx, hwaddr offset,
+                             unsigned size);
 } XiveTmOp;
 
 static const XiveTmOp xive_tm_operations[] = {
@@ -367,6 +465,7 @@ static const XiveTmOp xive_tm_operations[] = {
      * effects
      */
     { XIVE_TM_OS_PAGE, TM_QW1_OS + TM_CPPR,   1, xive_tm_set_os_cppr, NULL },
+    { XIVE_TM_HV_PAGE, TM_QW1_OS + TM_WORD2,     4, xive_tm_push_os_ctx, NULL },
     { XIVE_TM_HV_PAGE, TM_QW3_HV_PHYS + TM_CPPR, 1, xive_tm_set_hv_cppr, NULL },
     { XIVE_TM_HV_PAGE, TM_QW3_HV_PHYS + TM_WORD2, 1, xive_tm_vt_push, NULL },
     { XIVE_TM_HV_PAGE, TM_QW3_HV_PHYS + TM_WORD2, 1, NULL, xive_tm_vt_poll },
@@ -404,8 +503,8 @@ static const XiveTmOp *xive_tm_find_op(hwaddr offset, unsigned size, bool write)
 /*
  * TIMA MMIO handlers
  */
-void xive_tctx_tm_write(XiveTCTX *tctx, hwaddr offset, uint64_t value,
-                        unsigned size)
+void xive_tctx_tm_write(XivePresenter *xptr, XiveTCTX *tctx, hwaddr offset,
+                        uint64_t value, unsigned size)
 {
     const XiveTmOp *xto;
 
@@ -422,7 +521,7 @@ void xive_tctx_tm_write(XiveTCTX *tctx, hwaddr offset, uint64_t value,
             qemu_log_mask(LOG_GUEST_ERROR, "XIVE: invalid write access at TIMA "
                           "@%"HWADDR_PRIx"\n", offset);
         } else {
-            xto->write_handler(tctx, offset, value, size);
+            xto->write_handler(xptr, tctx, offset, value, size);
         }
         return;
     }
@@ -432,7 +531,7 @@ void xive_tctx_tm_write(XiveTCTX *tctx, hwaddr offset, uint64_t value,
      */
     xto = xive_tm_find_op(offset, size, true);
     if (xto) {
-        xto->write_handler(tctx, offset, value, size);
+        xto->write_handler(xptr, tctx, offset, value, size);
         return;
     }
 
@@ -442,7 +541,8 @@ void xive_tctx_tm_write(XiveTCTX *tctx, hwaddr offset, uint64_t value,
     xive_tm_raw_write(tctx, offset, value, size);
 }
 
-uint64_t xive_tctx_tm_read(XiveTCTX *tctx, hwaddr offset, unsigned size)
+uint64_t xive_tctx_tm_read(XivePresenter *xptr, XiveTCTX *tctx, hwaddr offset,
+                           unsigned size)
 {
     const XiveTmOp *xto;
 
@@ -460,7 +560,7 @@ uint64_t xive_tctx_tm_read(XiveTCTX *tctx, hwaddr offset, unsigned size)
                           "@%"HWADDR_PRIx"\n", offset);
             return -1;
         }
-        return xto->read_handler(tctx, offset, size);
+        return xto->read_handler(xptr, tctx, offset, size);
     }
 
     /*
@@ -468,7 +568,7 @@ uint64_t xive_tctx_tm_read(XiveTCTX *tctx, hwaddr offset, unsigned size)
      */
     xto = xive_tm_find_op(offset, size, false);
     if (xto) {
-        return xto->read_handler(tctx, offset, size);
+        return xto->read_handler(xptr, tctx, offset, size);
     }
 
     /*
@@ -477,35 +577,6 @@ uint64_t xive_tctx_tm_read(XiveTCTX *tctx, hwaddr offset, unsigned size)
     return xive_tm_raw_read(tctx, offset, size);
 }
 
-static void xive_tm_write(void *opaque, hwaddr offset,
-                          uint64_t value, unsigned size)
-{
-    XiveTCTX *tctx = xive_router_get_tctx(XIVE_ROUTER(opaque), current_cpu);
-
-    xive_tctx_tm_write(tctx, offset, value, size);
-}
-
-static uint64_t xive_tm_read(void *opaque, hwaddr offset, unsigned size)
-{
-    XiveTCTX *tctx = xive_router_get_tctx(XIVE_ROUTER(opaque), current_cpu);
-
-    return xive_tctx_tm_read(tctx, offset, size);
-}
-
-const MemoryRegionOps xive_tm_ops = {
-    .read = xive_tm_read,
-    .write = xive_tm_write,
-    .endianness = DEVICE_BIG_ENDIAN,
-    .valid = {
-        .min_access_size = 1,
-        .max_access_size = 8,
-    },
-    .impl = {
-        .min_access_size = 1,
-        .max_access_size = 8,
-    },
-};
-
 static char *xive_tctx_ring_print(uint8_t *ring)
 {
     uint32_t w2 = xive_tctx_word2(ring);
@@ -580,19 +651,11 @@ static void xive_tctx_realize(DeviceState *dev, Error **errp)
     XiveTCTX *tctx = XIVE_TCTX(dev);
     PowerPCCPU *cpu;
     CPUPPCState *env;
-    Object *obj;
     Error *local_err = NULL;
 
-    obj = object_property_get_link(OBJECT(dev), "cpu", &local_err);
-    if (!obj) {
-        error_propagate(errp, local_err);
-        error_prepend(errp, "required link 'cpu' not found: ");
-        return;
-    }
-
-    cpu = POWERPC_CPU(obj);
-    tctx->cs = CPU(obj);
+    assert(tctx->cs);
 
+    cpu = POWERPC_CPU(tctx->cs);
     env = &cpu->env;
     switch (PPC_INPUT(env)) {
     case PPC_FLAGS_INPUT_POWER9:
@@ -662,6 +725,11 @@ static const VMStateDescription vmstate_xive_tctx = {
     },
 };
 
+static Property xive_tctx_properties[] = {
+    DEFINE_PROP_LINK("cpu", XiveTCTX, cs, TYPE_CPU, CPUState *),
+    DEFINE_PROP_END_OF_LIST(),
+};
+
 static void xive_tctx_class_init(ObjectClass *klass, void *data)
 {
     DeviceClass *dc = DEVICE_CLASS(klass);
@@ -669,6 +737,7 @@ static void xive_tctx_class_init(ObjectClass *klass, void *data)
     dc->desc = "XIVE Interrupt Thread Context";
     dc->realize = xive_tctx_realize;
     dc->vmsd = &vmstate_xive_tctx;
+    dc->props = xive_tctx_properties;
     /*
      * Reason: part of XIVE interrupt controller, needs to be wired up
      * by xive_tctx_create().
@@ -691,8 +760,7 @@ Object *xive_tctx_create(Object *cpu, XiveRouter *xrtr, Error **errp)
     obj = object_new(TYPE_XIVE_TCTX);
     object_property_add_child(cpu, TYPE_XIVE_TCTX, obj, &error_abort);
     object_unref(obj);
-    object_ref(cpu);
-    object_property_add_const_link(obj, "cpu", cpu, &error_abort);
+    object_property_set_link(obj, cpu, "cpu", &error_abort);
     object_property_set_bool(obj, true, "realized", &local_err);
     if (local_err) {
         goto error;
@@ -710,7 +778,6 @@ void xive_tctx_destroy(XiveTCTX *tctx)
 {
     Object *obj = OBJECT(tctx);
 
-    object_unref(object_property_get_link(obj, "cpu", &error_abort));
     object_unparent(obj);
 }
 
@@ -1064,17 +1131,8 @@ static void xive_source_reset(void *dev)
 static void xive_source_realize(DeviceState *dev, Error **errp)
 {
     XiveSource *xsrc = XIVE_SOURCE(dev);
-    Object *obj;
-    Error *local_err = NULL;
 
-    obj = object_property_get_link(OBJECT(dev), "xive", &local_err);
-    if (!obj) {
-        error_propagate(errp, local_err);
-        error_prepend(errp, "required link 'xive' not found: ");
-        return;
-    }
-
-    xsrc->xive = XIVE_NOTIFIER(obj);
+    assert(xsrc->xive);
 
     if (!xsrc->nr_irqs) {
         error_setg(errp, "Number of interrupt needs to be greater than 0");
@@ -1120,6 +1178,8 @@ static Property xive_source_properties[] = {
     DEFINE_PROP_UINT64("flags", XiveSource, esb_flags, 0),
     DEFINE_PROP_UINT32("nr-irqs", XiveSource, nr_irqs, 0),
     DEFINE_PROP_UINT32("shift", XiveSource, esb_shift, XIVE_ESB_64K_2PAGE),
+    DEFINE_PROP_LINK("xive", XiveSource, xive, TYPE_XIVE_NOTIFIER,
+                     XiveNotifier *),
     DEFINE_PROP_END_OF_LIST(),
 };
 
@@ -1311,11 +1371,11 @@ int xive_router_write_nvt(XiveRouter *xrtr, uint8_t nvt_blk, uint32_t nvt_idx,
    return xrc->write_nvt(xrtr, nvt_blk, nvt_idx, nvt, word_number);
 }
 
-XiveTCTX *xive_router_get_tctx(XiveRouter *xrtr, CPUState *cs)
+static int xive_router_get_block_id(XiveRouter *xrtr)
 {
-    XiveRouterClass *xrc = XIVE_ROUTER_GET_CLASS(xrtr);
+   XiveRouterClass *xrc = XIVE_ROUTER_GET_CLASS(xrtr);
 
-    return xrc->get_tctx(xrtr, cs);
+   return xrc->get_block_id(xrtr);
 }
 
 /*
@@ -1323,20 +1383,22 @@ XiveTCTX *xive_router_get_tctx(XiveRouter *xrtr, CPUState *cs)
  *
  *   chip << 19 | 0000000 0 0001 thread (7Bit)
  */
-static uint32_t xive_tctx_hw_cam_line(XiveTCTX *tctx)
+static uint32_t xive_tctx_hw_cam_line(XivePresenter *xptr, XiveTCTX *tctx)
 {
     CPUPPCState *env = &POWERPC_CPU(tctx->cs)->env;
     uint32_t pir = env->spr_cb[SPR_PIR].default_value;
+    uint8_t blk = xive_router_get_block_id(XIVE_ROUTER(xptr));
 
-    return xive_nvt_cam_line((pir >> 8) & 0xf, 1 << 7 | (pir & 0x7f));
+    return xive_nvt_cam_line(blk, 1 << 7 | (pir & 0x7f));
 }
 
 /*
  * The thread context register words are in big-endian format.
  */
-static int xive_presenter_tctx_match(XiveTCTX *tctx, uint8_t format,
-                                     uint8_t nvt_blk, uint32_t nvt_idx,
-                                     bool cam_ignore, uint32_t logic_serv)
+int xive_presenter_tctx_match(XivePresenter *xptr, XiveTCTX *tctx,
+                              uint8_t format,
+                              uint8_t nvt_blk, uint32_t nvt_idx,
+                              bool cam_ignore, uint32_t logic_serv)
 {
     uint32_t cam = xive_nvt_cam_line(nvt_blk, nvt_idx);
     uint32_t qw3w2 = xive_tctx_word2(&tctx->regs[TM_QW3_HV_PHYS]);
@@ -1364,7 +1426,7 @@ static int xive_presenter_tctx_match(XiveTCTX *tctx, uint8_t format,
 
         /* PHYS ring */
         if ((be32_to_cpu(qw3w2) & TM_QW3W2_VT) &&
-            cam == xive_tctx_hw_cam_line(tctx)) {
+            cam == xive_tctx_hw_cam_line(xptr, tctx)) {
             return TM_QW3_HV_PHYS;
         }
 
@@ -1393,71 +1455,6 @@ static int xive_presenter_tctx_match(XiveTCTX *tctx, uint8_t format,
     return -1;
 }
 
-typedef struct XiveTCTXMatch {
-    XiveTCTX *tctx;
-    uint8_t ring;
-} XiveTCTXMatch;
-
-static bool xive_presenter_match(XiveRouter *xrtr, uint8_t format,
-                                 uint8_t nvt_blk, uint32_t nvt_idx,
-                                 bool cam_ignore, uint8_t priority,
-                                 uint32_t logic_serv, XiveTCTXMatch *match)
-{
-    CPUState *cs;
-
-    /*
-     * TODO (PowerNV): handle chip_id overwrite of block field for
-     * hardwired CAM compares
-     */
-
-    CPU_FOREACH(cs) {
-        XiveTCTX *tctx = xive_router_get_tctx(xrtr, cs);
-        int ring;
-
-        /*
-         * Skip partially initialized vCPUs. This can happen when
-         * vCPUs are hotplugged.
-         */
-        if (!tctx) {
-            continue;
-        }
-
-        /*
-         * HW checks that the CPU is enabled in the Physical Thread
-         * Enable Register (PTER).
-         */
-
-        /*
-         * Check the thread context CAM lines and record matches. We
-         * will handle CPU exception delivery later
-         */
-        ring = xive_presenter_tctx_match(tctx, format, nvt_blk, nvt_idx,
-                                         cam_ignore, logic_serv);
-        /*
-         * Save the context and follow on to catch duplicates, that we
-         * don't support yet.
-         */
-        if (ring != -1) {
-            if (match->tctx) {
-                qemu_log_mask(LOG_GUEST_ERROR, "XIVE: already found a thread "
-                              "context NVT %x/%x\n", nvt_blk, nvt_idx);
-                return false;
-            }
-
-            match->ring = ring;
-            match->tctx = tctx;
-        }
-    }
-
-    if (!match->tctx) {
-        qemu_log_mask(LOG_UNIMP, "XIVE: NVT %x/%x is not dispatched\n",
-                      nvt_blk, nvt_idx);
-        return false;
-    }
-
-    return true;
-}
-
 /*
  * This is our simple Xive Presenter Engine model. It is merged in the
  * Router as it does not require an extra object.
@@ -1473,22 +1470,31 @@ static bool xive_presenter_match(XiveRouter *xrtr, uint8_t format,
  *
  * The parameters represent what is sent on the PowerBus
  */
-static bool xive_presenter_notify(XiveRouter *xrtr, uint8_t format,
+static bool xive_presenter_notify(uint8_t format,
                                   uint8_t nvt_blk, uint32_t nvt_idx,
                                   bool cam_ignore, uint8_t priority,
                                   uint32_t logic_serv)
 {
+    XiveFabric *xfb = XIVE_FABRIC(qdev_get_machine());
+    XiveFabricClass *xfc = XIVE_FABRIC_GET_CLASS(xfb);
     XiveTCTXMatch match = { .tctx = NULL, .ring = 0 };
-    bool found;
+    int count;
 
-    found = xive_presenter_match(xrtr, format, nvt_blk, nvt_idx, cam_ignore,
-                                 priority, logic_serv, &match);
-    if (found) {
-        ipb_update(&match.tctx->regs[match.ring], priority);
-        xive_tctx_notify(match.tctx, match.ring);
+    /*
+     * Ask the machine to scan the interrupt controllers for a match
+     */
+    count = xfc->match_nvt(xfb, format, nvt_blk, nvt_idx, cam_ignore,
+                           priority, logic_serv, &match);
+    if (count < 0) {
+        return false;
     }
 
-    return found;
+    /* handle CPU exception delivery */
+    if (count) {
+        xive_tctx_ipb_update(match.tctx, match.ring, priority_to_ipb(priority));
+    }
+
+    return !!count;
 }
 
 /*
@@ -1601,7 +1607,7 @@ static void xive_router_end_notify(XiveRouter *xrtr, uint8_t end_blk,
         return;
     }
 
-    found = xive_presenter_notify(xrtr, format, nvt_blk, nvt_idx,
+    found = xive_presenter_notify(format, nvt_blk, nvt_idx,
                           xive_get_field32(END_W7_F0_IGNORE, end.w7),
                           priority,
                           xive_get_field32(END_W7_F1_LOG_SERVER_ID, end.w7));
@@ -1618,14 +1624,21 @@ static void xive_router_end_notify(XiveRouter *xrtr, uint8_t end_blk,
      * - logical server : forward request to IVPE (not supported)
      */
     if (xive_end_is_backlog(&end)) {
+        uint8_t ipb;
+
         if (format == 1) {
             qemu_log_mask(LOG_GUEST_ERROR,
                           "XIVE: END %x/%x invalid config: F1 & backlog\n",
                           end_blk, end_idx);
             return;
         }
-        /* Record the IPB in the associated NVT structure */
-        ipb_update((uint8_t *) &nvt.w4, priority);
+        /*
+         * Record the IPB in the associated NVT structure for later
+         * use. The presenter will resend the interrupt when the vCPU
+         * is dispatched again on a HW thread.
+         */
+        ipb = xive_get_field32(NVT_W4_IPB, nvt.w4) | priority_to_ipb(priority);
+        nvt.w4 = xive_set_field32(NVT_W4_IPB, nvt.w4, ipb);
         xive_router_write_nvt(xrtr, nvt_blk, nvt_idx, &nvt, 4);
 
         /*
@@ -1718,6 +1731,7 @@ static const TypeInfo xive_router_info = {
     .class_init    = xive_router_class_init,
     .interfaces    = (InterfaceInfo[]) {
         { TYPE_XIVE_NOTIFIER },
+        { TYPE_XIVE_PRESENTER },
         { }
     }
 };
@@ -1749,7 +1763,11 @@ static uint64_t xive_end_source_read(void *opaque, hwaddr addr, unsigned size)
     uint8_t pq;
     uint64_t ret = -1;
 
-    end_blk = xsrc->block_id;
+    /*
+     * The block id should be deduced from the load address on the END
+     * ESB MMIO but our model only supports a single block per XIVE chip.
+     */
+    end_blk = xive_router_get_block_id(xsrc->xrtr);
     end_idx = addr >> (xsrc->esb_shift + 1);
 
     if (xive_router_get_end(xsrc->xrtr, end_blk, end_idx, &end)) {
@@ -1825,17 +1843,8 @@ static const MemoryRegionOps xive_end_source_ops = {
 static void xive_end_source_realize(DeviceState *dev, Error **errp)
 {
     XiveENDSource *xsrc = XIVE_END_SOURCE(dev);
-    Object *obj;
-    Error *local_err = NULL;
 
-    obj = object_property_get_link(OBJECT(dev), "xive", &local_err);
-    if (!obj) {
-        error_propagate(errp, local_err);
-        error_prepend(errp, "required link 'xive' not found: ");
-        return;
-    }
-
-    xsrc->xrtr = XIVE_ROUTER(obj);
+    assert(xsrc->xrtr);
 
     if (!xsrc->nr_ends) {
         error_setg(errp, "Number of interrupt needs to be greater than 0");
@@ -1858,9 +1867,10 @@ static void xive_end_source_realize(DeviceState *dev, Error **errp)
 }
 
 static Property xive_end_source_properties[] = {
-    DEFINE_PROP_UINT8("block-id", XiveENDSource, block_id, 0),
     DEFINE_PROP_UINT32("nr-ends", XiveENDSource, nr_ends, 0),
     DEFINE_PROP_UINT32("shift", XiveENDSource, esb_shift, XIVE_ESB_64K),
+    DEFINE_PROP_LINK("xive", XiveENDSource, xrtr, TYPE_XIVE_ROUTER,
+                     XiveRouter *),
     DEFINE_PROP_END_OF_LIST(),
 };
 
@@ -1894,10 +1904,30 @@ static const TypeInfo xive_notifier_info = {
     .class_size = sizeof(XiveNotifierClass),
 };
 
+/*
+ * XIVE Presenter
+ */
+static const TypeInfo xive_presenter_info = {
+    .name = TYPE_XIVE_PRESENTER,
+    .parent = TYPE_INTERFACE,
+    .class_size = sizeof(XivePresenterClass),
+};
+
+/*
+ * XIVE Fabric
+ */
+static const TypeInfo xive_fabric_info = {
+    .name = TYPE_XIVE_FABRIC,
+    .parent = TYPE_INTERFACE,
+    .class_size = sizeof(XiveFabricClass),
+};
+
 static void xive_register_types(void)
 {
+    type_register_static(&xive_fabric_info);
     type_register_static(&xive_source_info);
     type_register_static(&xive_notifier_info);
+    type_register_static(&xive_presenter_info);
     type_register_static(&xive_router_info);
     type_register_static(&xive_end_source_info);
     type_register_static(&xive_tctx_info);
diff --git a/hw/ipmi/ipmi_bmc_sim.c b/hw/ipmi/ipmi_bmc_sim.c
index 71e56f3..6670cf0 100644
--- a/hw/ipmi/ipmi_bmc_sim.c
+++ b/hw/ipmi/ipmi_bmc_sim.c
@@ -167,32 +167,14 @@ typedef struct IPMISensor {
 #define MAX_SENSORS 20
 #define IPMI_WATCHDOG_SENSOR 0
 
-typedef struct IPMIBmcSim IPMIBmcSim;
-typedef struct RspBuffer RspBuffer;
-
 #define MAX_NETFNS 64
 
-typedef struct IPMICmdHandler {
-    void (*cmd_handler)(IPMIBmcSim *s,
-                        uint8_t *cmd, unsigned int cmd_len,
-                        RspBuffer *rsp);
-    unsigned int cmd_len_min;
-} IPMICmdHandler;
-
-typedef struct IPMINetfn {
-    unsigned int cmd_nums;
-    const IPMICmdHandler *cmd_handlers;
-} IPMINetfn;
-
 typedef struct IPMIRcvBufEntry {
     QTAILQ_ENTRY(IPMIRcvBufEntry) entry;
     uint8_t len;
     uint8_t buf[MAX_IPMI_MSG_SIZE];
 } IPMIRcvBufEntry;
 
-#define TYPE_IPMI_BMC_SIMULATOR "ipmi-bmc-sim"
-#define IPMI_BMC_SIMULATOR(obj) OBJECT_CHECK(IPMIBmcSim, (obj), \
-                                        TYPE_IPMI_BMC_SIMULATOR)
 struct IPMIBmcSim {
     IPMIBmc parent;
 
@@ -279,28 +261,8 @@ struct IPMIBmcSim {
 #define IPMI_BMC_WATCHDOG_ACTION_POWER_DOWN      2
 #define IPMI_BMC_WATCHDOG_ACTION_POWER_CYCLE     3
 
-struct RspBuffer {
-    uint8_t buffer[MAX_IPMI_MSG_SIZE];
-    unsigned int len;
-};
-
 #define RSP_BUFFER_INITIALIZER { }
 
-static inline void rsp_buffer_set_error(RspBuffer *rsp, uint8_t byte)
-{
-    rsp->buffer[2] = byte;
-}
-
-/* Add a byte to the response. */
-static inline void rsp_buffer_push(RspBuffer *rsp, uint8_t byte)
-{
-    if (rsp->len >= sizeof(rsp->buffer)) {
-        rsp_buffer_set_error(rsp, IPMI_CC_REQUEST_DATA_TRUNCATED);
-        return;
-    }
-    rsp->buffer[rsp->len++] = byte;
-}
-
 static inline void rsp_buffer_pushmore(RspBuffer *rsp, uint8_t *bytes,
                                        unsigned int n)
 {
@@ -630,8 +592,8 @@ static void ipmi_init_sensors_from_sdrs(IPMIBmcSim *s)
     }
 }
 
-static int ipmi_register_netfn(IPMIBmcSim *s, unsigned int netfn,
-                               const IPMINetfn *netfnd)
+int ipmi_sim_register_netfn(IPMIBmcSim *s, unsigned int netfn,
+                        const IPMINetfn *netfnd)
 {
     if ((netfn & 1) || (netfn >= MAX_NETFNS) || (s->netfns[netfn / 2])) {
         return -1;
@@ -1860,10 +1822,10 @@ static const IPMINetfn storage_netfn = {
 
 static void register_cmds(IPMIBmcSim *s)
 {
-    ipmi_register_netfn(s, IPMI_NETFN_CHASSIS, &chassis_netfn);
-    ipmi_register_netfn(s, IPMI_NETFN_SENSOR_EVENT, &sensor_event_netfn);
-    ipmi_register_netfn(s, IPMI_NETFN_APP, &app_netfn);
-    ipmi_register_netfn(s, IPMI_NETFN_STORAGE, &storage_netfn);
+    ipmi_sim_register_netfn(s, IPMI_NETFN_CHASSIS, &chassis_netfn);
+    ipmi_sim_register_netfn(s, IPMI_NETFN_SENSOR_EVENT, &sensor_event_netfn);
+    ipmi_sim_register_netfn(s, IPMI_NETFN_APP, &app_netfn);
+    ipmi_sim_register_netfn(s, IPMI_NETFN_STORAGE, &storage_netfn);
 }
 
 static uint8_t init_sdrs[] = {
diff --git a/hw/ppc/Makefile.objs b/hw/ppc/Makefile.objs
index 580bb4f..101e9fc 100644
--- a/hw/ppc/Makefile.objs
+++ b/hw/ppc/Makefile.objs
@@ -9,7 +9,9 @@ obj-$(CONFIG_PSERIES) += spapr_tpm_proxy.o
 obj-$(CONFIG_SPAPR_RNG) +=  spapr_rng.o
 # IBM PowerNV
 obj-$(CONFIG_POWERNV) += pnv.o pnv_xscom.o pnv_core.o pnv_lpc.o pnv_psi.o pnv_occ.o pnv_bmc.o
-obj-$(CONFIG_POWERNV) += pnv_homer.o
+obj-$(CONFIG_POWERNV) += pnv_homer.o pnv_pnor.o
+
+
 ifeq ($(CONFIG_PCI)$(CONFIG_PSERIES)$(CONFIG_LINUX), yyy)
 obj-y += spapr_pci_vfio.o spapr_pci_nvlink2.o
 endif
diff --git a/hw/ppc/pnv.c b/hw/ppc/pnv.c
index 627c08e..f77e7ca 100644
--- a/hw/ppc/pnv.c
+++ b/hw/ppc/pnv.c
@@ -44,6 +44,7 @@
 #include "hw/ppc/xics.h"
 #include "hw/qdev-properties.h"
 #include "hw/ppc/pnv_xscom.h"
+#include "hw/ppc/pnv_pnor.h"
 
 #include "hw/isa/isa.h"
 #include "hw/boards.h"
@@ -279,14 +280,16 @@ static void pnv_dt_icp(PnvChip *chip, void *fdt, uint32_t pir,
 
 static void pnv_chip_power8_dt_populate(PnvChip *chip, void *fdt)
 {
-    const char *typename = pnv_chip_core_typename(chip);
-    size_t typesize = object_type_get_instance_size(typename);
+    static const char compat[] = "ibm,power8-xscom\0ibm,xscom";
     int i;
 
-    pnv_dt_xscom(chip, fdt, 0);
+    pnv_dt_xscom(chip, fdt, 0,
+                 cpu_to_be64(PNV_XSCOM_BASE(chip)),
+                 cpu_to_be64(PNV_XSCOM_SIZE),
+                 compat, sizeof(compat));
 
     for (i = 0; i < chip->nr_cores; i++) {
-        PnvCore *pnv_core = PNV_CORE(chip->cores + i * typesize);
+        PnvCore *pnv_core = chip->cores[i];
 
         pnv_dt_core(chip, pnv_core, fdt);
 
@@ -301,14 +304,39 @@ static void pnv_chip_power8_dt_populate(PnvChip *chip, void *fdt)
 
 static void pnv_chip_power9_dt_populate(PnvChip *chip, void *fdt)
 {
-    const char *typename = pnv_chip_core_typename(chip);
-    size_t typesize = object_type_get_instance_size(typename);
+    static const char compat[] = "ibm,power9-xscom\0ibm,xscom";
+    int i;
+
+    pnv_dt_xscom(chip, fdt, 0,
+                 cpu_to_be64(PNV9_XSCOM_BASE(chip)),
+                 cpu_to_be64(PNV9_XSCOM_SIZE),
+                 compat, sizeof(compat));
+
+    for (i = 0; i < chip->nr_cores; i++) {
+        PnvCore *pnv_core = chip->cores[i];
+
+        pnv_dt_core(chip, pnv_core, fdt);
+    }
+
+    if (chip->ram_size) {
+        pnv_dt_memory(fdt, chip->chip_id, chip->ram_start, chip->ram_size);
+    }
+
+    pnv_dt_lpc(chip, fdt, 0, PNV9_LPCM_BASE(chip), PNV9_LPCM_SIZE);
+}
+
+static void pnv_chip_power10_dt_populate(PnvChip *chip, void *fdt)
+{
+    static const char compat[] = "ibm,power10-xscom\0ibm,xscom";
     int i;
 
-    pnv_dt_xscom(chip, fdt, 0);
+    pnv_dt_xscom(chip, fdt, 0,
+                 cpu_to_be64(PNV10_XSCOM_BASE(chip)),
+                 cpu_to_be64(PNV10_XSCOM_SIZE),
+                 compat, sizeof(compat));
 
     for (i = 0; i < chip->nr_cores; i++) {
-        PnvCore *pnv_core = PNV_CORE(chip->cores + i * typesize);
+        PnvCore *pnv_core = chip->cores[i];
 
         pnv_dt_core(chip, pnv_core, fdt);
     }
@@ -317,7 +345,7 @@ static void pnv_chip_power9_dt_populate(PnvChip *chip, void *fdt)
         pnv_dt_memory(fdt, chip->chip_id, chip->ram_start, chip->ram_size);
     }
 
-    pnv_dt_lpc(chip, fdt, 0);
+    pnv_dt_lpc(chip, fdt, 0, PNV10_LPCM_BASE(chip), PNV10_LPCM_SIZE);
 }
 
 static void pnv_dt_rtc(ISADevice *d, void *fdt, int lpc_off)
@@ -456,7 +484,7 @@ static void pnv_dt_isa(PnvMachineState *pnv, void *fdt)
                        &args);
 }
 
-static void pnv_dt_power_mgt(void *fdt)
+static void pnv_dt_power_mgt(PnvMachineState *pnv, void *fdt)
 {
     int off;
 
@@ -468,8 +496,7 @@ static void pnv_dt_power_mgt(void *fdt)
 
 static void *pnv_dt_create(MachineState *machine)
 {
-    const char plat_compat8[] = "qemu,powernv8\0qemu,powernv\0ibm,powernv";
-    const char plat_compat9[] = "qemu,powernv9\0ibm,powernv";
+    PnvMachineClass *pmc = PNV_MACHINE_GET_CLASS(machine);
     PnvMachineState *pnv = PNV_MACHINE(machine);
     void *fdt;
     char *buf;
@@ -479,19 +506,15 @@ static void *pnv_dt_create(MachineState *machine)
     fdt = g_malloc0(FDT_MAX_SIZE);
     _FDT((fdt_create_empty_tree(fdt, FDT_MAX_SIZE)));
 
+    /* /qemu node */
+    _FDT((fdt_add_subnode(fdt, 0, "qemu")));
+
     /* Root node */
     _FDT((fdt_setprop_cell(fdt, 0, "#address-cells", 0x2)));
     _FDT((fdt_setprop_cell(fdt, 0, "#size-cells", 0x2)));
     _FDT((fdt_setprop_string(fdt, 0, "model",
                              "IBM PowerNV (emulated by qemu)")));
-    if (pnv_is_power9(pnv)) {
-        _FDT((fdt_setprop(fdt, 0, "compatible", plat_compat9,
-                          sizeof(plat_compat9))));
-    } else {
-        _FDT((fdt_setprop(fdt, 0, "compatible", plat_compat8,
-                          sizeof(plat_compat8))));
-    }
-
+    _FDT((fdt_setprop(fdt, 0, "compatible", pmc->compat, pmc->compat_size)));
 
     buf =  qemu_uuid_unparse_strdup(&qemu_uuid);
     _FDT((fdt_setprop_string(fdt, 0, "vm,uuid", buf)));
@@ -528,9 +551,9 @@ static void *pnv_dt_create(MachineState *machine)
         pnv_dt_bmc_sensors(pnv->bmc, fdt);
     }
 
-    /* Create an extra node for power management on Power9 */
-    if (pnv_is_power9(pnv)) {
-        pnv_dt_power_mgt(fdt);
+    /* Create an extra node for power management on machines that support it */
+    if (pmc->dt_power_mgt) {
+        pmc->dt_power_mgt(pnv, fdt);
     }
 
     return fdt;
@@ -547,26 +570,10 @@ static void pnv_powerdown_notify(Notifier *n, void *opaque)
 
 static void pnv_reset(MachineState *machine)
 {
-    PnvMachineState *pnv = PNV_MACHINE(machine);
     void *fdt;
-    Object *obj;
 
     qemu_devices_reset();
 
-    /*
-     * OpenPOWER systems have a BMC, which can be defined on the
-     * command line with:
-     *
-     *   -device ipmi-bmc-sim,id=bmc0
-     *
-     * This is the internal simulator but it could also be an external
-     * BMC.
-     */
-    obj = object_resolve_path_type("", "ipmi-bmc-sim", NULL);
-    if (obj) {
-        pnv->bmc = IPMI_BMC(obj);
-    }
-
     fdt = pnv_dt_create(machine);
 
     /* Pack resulting tree */
@@ -594,6 +601,12 @@ static ISABus *pnv_chip_power9_isa_create(PnvChip *chip, Error **errp)
     return pnv_lpc_isa_create(&chip9->lpc, false, errp);
 }
 
+static ISABus *pnv_chip_power10_isa_create(PnvChip *chip, Error **errp)
+{
+    Pnv10Chip *chip10 = PNV10_CHIP(chip);
+    return pnv_lpc_isa_create(&chip10->lpc, false, errp);
+}
+
 static ISABus *pnv_isa_create(PnvChip *chip, Error **errp)
 {
     return PNV_CHIP_GET_CLASS(chip)->isa_create(chip, errp);
@@ -614,6 +627,24 @@ static void pnv_chip_power9_pic_print_info(PnvChip *chip, Monitor *mon)
     pnv_psi_pic_print_info(&chip9->psi, mon);
 }
 
+static uint64_t pnv_chip_power8_xscom_core_base(PnvChip *chip,
+                                                uint32_t core_id)
+{
+    return PNV_XSCOM_EX_BASE(core_id);
+}
+
+static uint64_t pnv_chip_power9_xscom_core_base(PnvChip *chip,
+                                                uint32_t core_id)
+{
+    return PNV9_XSCOM_EC_BASE(core_id);
+}
+
+static uint64_t pnv_chip_power10_xscom_core_base(PnvChip *chip,
+                                                 uint32_t core_id)
+{
+    return PNV10_XSCOM_EC_BASE(core_id);
+}
+
 static bool pnv_match_cpu(const char *default_type, const char *cpu_type)
 {
     PowerPCCPUClass *ppc_default =
@@ -624,6 +655,23 @@ static bool pnv_match_cpu(const char *default_type, const char *cpu_type)
     return ppc_default->pvr_match(ppc_default, ppc->pvr);
 }
 
+static void pnv_ipmi_bt_init(ISABus *bus, IPMIBmc *bmc, uint32_t irq)
+{
+    Object *obj;
+
+    obj = OBJECT(isa_create(bus, "isa-ipmi-bt"));
+    object_property_set_link(obj, OBJECT(bmc), "bmc", &error_fatal);
+    object_property_set_int(obj, irq, "irq", &error_fatal);
+    object_property_set_bool(obj, true, "realized", &error_fatal);
+}
+
+static void pnv_chip_power10_pic_print_info(PnvChip *chip, Monitor *mon)
+{
+    Pnv10Chip *chip10 = PNV10_CHIP(chip);
+
+    pnv_psi_pic_print_info(&chip10->psi, mon);
+}
+
 static void pnv_init(MachineState *machine)
 {
     PnvMachineState *pnv = PNV_MACHINE(machine);
@@ -633,6 +681,8 @@ static void pnv_init(MachineState *machine)
     long fw_size;
     int i;
     char *chip_typename;
+    DriveInfo *pnor = drive_get(IF_MTD, 0, 0);
+    DeviceState *dev;
 
     /* allocate RAM */
     if (machine->ram_size < (1 * GiB)) {
@@ -644,6 +694,17 @@ static void pnv_init(MachineState *machine)
                                          machine->ram_size);
     memory_region_add_subregion(get_system_memory(), 0, ram);
 
+    /*
+     * Create our simple PNOR device
+     */
+    dev = qdev_create(NULL, TYPE_PNV_PNOR);
+    if (pnor) {
+        qdev_prop_set_drive(dev, "drive", blk_by_legacy_dinfo(pnor),
+                            &error_abort);
+    }
+    qdev_init_nofail(dev);
+    pnv->pnor = PNV_PNOR(dev);
+
     /* load skiboot firmware  */
     if (bios_name == NULL) {
         bios_name = FW_FILE_NAME;
@@ -733,6 +794,9 @@ static void pnv_init(MachineState *machine)
     }
     g_free(chip_typename);
 
+    /* Create the machine BMC simulator */
+    pnv->bmc = pnv_bmc_create();
+
     /* Instantiate ISA bus on chip 0 */
     pnv->isa_bus = pnv_isa_create(pnv->chips[0], &error_fatal);
 
@@ -742,6 +806,9 @@ static void pnv_init(MachineState *machine)
     /* Create an RTC ISA device too */
     mc146818_rtc_init(pnv->isa_bus, 2000, NULL);
 
+    /* Create the IPMI BT device for communication with the BMC */
+    pnv_ipmi_bt_init(pnv->isa_bus, pnv->bmc, 10);
+
     /*
      * OpenPOWER systems use a IPMI SEL Event message to notify the
      * host to powerdown
@@ -794,6 +861,12 @@ static void pnv_chip_power8_intc_destroy(PnvChip *chip, PowerPCCPU *cpu)
     pnv_cpu->intc = NULL;
 }
 
+static void pnv_chip_power8_intc_print_info(PnvChip *chip, PowerPCCPU *cpu,
+                                            Monitor *mon)
+{
+    icp_pic_print_info(ICP(pnv_cpu_state(cpu)->intc), mon);
+}
+
 /*
  *    0:48  Reserved - Read as zeroes
  *   49:52  Node ID
@@ -809,6 +882,11 @@ static uint32_t pnv_chip_core_pir_p9(PnvChip *chip, uint32_t core_id)
     return (chip->chip_id << 8) | (core_id << 2);
 }
 
+static uint32_t pnv_chip_core_pir_p10(PnvChip *chip, uint32_t core_id)
+{
+    return (chip->chip_id << 8) | (core_id << 2);
+}
+
 static void pnv_chip_power9_intc_create(PnvChip *chip, PowerPCCPU *cpu,
                                         Error **errp)
 {
@@ -846,6 +924,38 @@ static void pnv_chip_power9_intc_destroy(PnvChip *chip, PowerPCCPU *cpu)
     pnv_cpu->intc = NULL;
 }
 
+static void pnv_chip_power9_intc_print_info(PnvChip *chip, PowerPCCPU *cpu,
+                                            Monitor *mon)
+{
+    xive_tctx_pic_print_info(XIVE_TCTX(pnv_cpu_state(cpu)->intc), mon);
+}
+
+static void pnv_chip_power10_intc_create(PnvChip *chip, PowerPCCPU *cpu,
+                                        Error **errp)
+{
+    PnvCPUState *pnv_cpu = pnv_cpu_state(cpu);
+
+    /* Will be defined when the interrupt controller is */
+    pnv_cpu->intc = NULL;
+}
+
+static void pnv_chip_power10_intc_reset(PnvChip *chip, PowerPCCPU *cpu)
+{
+    ;
+}
+
+static void pnv_chip_power10_intc_destroy(PnvChip *chip, PowerPCCPU *cpu)
+{
+    PnvCPUState *pnv_cpu = pnv_cpu_state(cpu);
+
+    pnv_cpu->intc = NULL;
+}
+
+static void pnv_chip_power10_intc_print_info(PnvChip *chip, PowerPCCPU *cpu,
+                                             Monitor *mon)
+{
+}
+
 /*
  * Allowed core identifiers on a POWER8 Processor Chip :
  *
@@ -873,6 +983,9 @@ static void pnv_chip_power9_intc_destroy(PnvChip *chip, PowerPCCPU *cpu)
  */
 #define POWER9_CORE_MASK   (0xffffffffffffffull)
 
+
+#define POWER10_CORE_MASK  (0xffffffffffffffull)
+
 static void pnv_chip_power8_instance_init(Object *obj)
 {
     Pnv8Chip *chip8 = PNV8_CHIP(obj);
@@ -884,26 +997,18 @@ static void pnv_chip_power8_instance_init(Object *obj)
 
     object_initialize_child(obj, "lpc",  &chip8->lpc, sizeof(chip8->lpc),
                             TYPE_PNV8_LPC, &error_abort, NULL);
-    object_property_add_const_link(OBJECT(&chip8->lpc), "psi",
-                                   OBJECT(&chip8->psi), &error_abort);
 
     object_initialize_child(obj, "occ",  &chip8->occ, sizeof(chip8->occ),
                             TYPE_PNV8_OCC, &error_abort, NULL);
-    object_property_add_const_link(OBJECT(&chip8->occ), "psi",
-                                   OBJECT(&chip8->psi), &error_abort);
 
     object_initialize_child(obj, "homer",  &chip8->homer, sizeof(chip8->homer),
                             TYPE_PNV8_HOMER, &error_abort, NULL);
-    object_property_add_const_link(OBJECT(&chip8->homer), "chip", obj,
-                                   &error_abort);
 }
 
 static void pnv_chip_icp_realize(Pnv8Chip *chip8, Error **errp)
  {
     PnvChip *chip = PNV_CHIP(chip8);
     PnvChipClass *pcc = PNV_CHIP_GET_CLASS(chip);
-    const char *typename = pnv_chip_core_typename(chip);
-    size_t typesize = object_type_get_instance_size(typename);
     int i, j;
     char *name;
     XICSFabric *xi = XICS_FABRIC(qdev_get_machine());
@@ -917,7 +1022,7 @@ static void pnv_chip_icp_realize(Pnv8Chip *chip8, Error **errp)
 
     /* Map the ICP registers for each thread */
     for (i = 0; i < chip->nr_cores; i++) {
-        PnvCore *pnv_core = PNV_CORE(chip->cores + i * typesize);
+        PnvCore *pnv_core = chip->cores[i];
         int core_hwid = CPU_CORE(pnv_core)->core_id;
 
         for (j = 0; j < CPU_CORE(pnv_core)->nr_threads; j++) {
@@ -964,6 +1069,8 @@ static void pnv_chip_power8_realize(DeviceState *dev, Error **errp)
                             &PNV_PSI(psi8)->xscom_regs);
 
     /* Create LPC controller */
+    object_property_set_link(OBJECT(&chip8->lpc), OBJECT(&chip8->psi), "psi",
+                             &error_abort);
     object_property_set_bool(OBJECT(&chip8->lpc), true, "realized",
                              &error_fatal);
     pnv_xscom_add_subregion(chip, PNV_XSCOM_LPC_BASE, &chip8->lpc.xscom_regs);
@@ -983,6 +1090,8 @@ static void pnv_chip_power8_realize(DeviceState *dev, Error **errp)
     }
 
     /* Create the simplified OCC model */
+    object_property_set_link(OBJECT(&chip8->occ), OBJECT(&chip8->psi), "psi",
+                             &error_abort);
     object_property_set_bool(OBJECT(&chip8->occ), true, "realized", &local_err);
     if (local_err) {
         error_propagate(errp, local_err);
@@ -991,35 +1100,49 @@ static void pnv_chip_power8_realize(DeviceState *dev, Error **errp)
     pnv_xscom_add_subregion(chip, PNV_XSCOM_OCC_BASE, &chip8->occ.xscom_regs);
 
     /* OCC SRAM model */
-    memory_region_add_subregion(get_system_memory(), PNV_OCC_COMMON_AREA(chip),
+    memory_region_add_subregion(get_system_memory(), PNV_OCC_SENSOR_BASE(chip),
                                 &chip8->occ.sram_regs);
 
     /* HOMER */
+    object_property_set_link(OBJECT(&chip8->homer), OBJECT(chip), "chip",
+                             &error_abort);
     object_property_set_bool(OBJECT(&chip8->homer), true, "realized",
                              &local_err);
     if (local_err) {
         error_propagate(errp, local_err);
         return;
     }
+    /* Homer Xscom region */
+    pnv_xscom_add_subregion(chip, PNV_XSCOM_PBA_BASE, &chip8->homer.pba_regs);
+
+    /* Homer mmio region */
     memory_region_add_subregion(get_system_memory(), PNV_HOMER_BASE(chip),
                                 &chip8->homer.regs);
 }
 
+static uint32_t pnv_chip_power8_xscom_pcba(PnvChip *chip, uint64_t addr)
+{
+    addr &= (PNV_XSCOM_SIZE - 1);
+    return ((addr >> 4) & ~0xfull) | ((addr >> 3) & 0xf);
+}
+
 static void pnv_chip_power8e_class_init(ObjectClass *klass, void *data)
 {
     DeviceClass *dc = DEVICE_CLASS(klass);
     PnvChipClass *k = PNV_CHIP_CLASS(klass);
 
-    k->chip_type = PNV_CHIP_POWER8E;
     k->chip_cfam_id = 0x221ef04980000000ull;  /* P8 Murano DD2.1 */
     k->cores_mask = POWER8E_CORE_MASK;
     k->core_pir = pnv_chip_core_pir_p8;
     k->intc_create = pnv_chip_power8_intc_create;
     k->intc_reset = pnv_chip_power8_intc_reset;
     k->intc_destroy = pnv_chip_power8_intc_destroy;
+    k->intc_print_info = pnv_chip_power8_intc_print_info;
     k->isa_create = pnv_chip_power8_isa_create;
     k->dt_populate = pnv_chip_power8_dt_populate;
     k->pic_print_info = pnv_chip_power8_pic_print_info;
+    k->xscom_core_base = pnv_chip_power8_xscom_core_base;
+    k->xscom_pcba = pnv_chip_power8_xscom_pcba;
     dc->desc = "PowerNV Chip POWER8E";
 
     device_class_set_parent_realize(dc, pnv_chip_power8_realize,
@@ -1031,16 +1154,18 @@ static void pnv_chip_power8_class_init(ObjectClass *klass, void *data)
     DeviceClass *dc = DEVICE_CLASS(klass);
     PnvChipClass *k = PNV_CHIP_CLASS(klass);
 
-    k->chip_type = PNV_CHIP_POWER8;
     k->chip_cfam_id = 0x220ea04980000000ull; /* P8 Venice DD2.0 */
     k->cores_mask = POWER8_CORE_MASK;
     k->core_pir = pnv_chip_core_pir_p8;
     k->intc_create = pnv_chip_power8_intc_create;
     k->intc_reset = pnv_chip_power8_intc_reset;
     k->intc_destroy = pnv_chip_power8_intc_destroy;
+    k->intc_print_info = pnv_chip_power8_intc_print_info;
     k->isa_create = pnv_chip_power8_isa_create;
     k->dt_populate = pnv_chip_power8_dt_populate;
     k->pic_print_info = pnv_chip_power8_pic_print_info;
+    k->xscom_core_base = pnv_chip_power8_xscom_core_base;
+    k->xscom_pcba = pnv_chip_power8_xscom_pcba;
     dc->desc = "PowerNV Chip POWER8";
 
     device_class_set_parent_realize(dc, pnv_chip_power8_realize,
@@ -1052,16 +1177,18 @@ static void pnv_chip_power8nvl_class_init(ObjectClass *klass, void *data)
     DeviceClass *dc = DEVICE_CLASS(klass);
     PnvChipClass *k = PNV_CHIP_CLASS(klass);
 
-    k->chip_type = PNV_CHIP_POWER8NVL;
     k->chip_cfam_id = 0x120d304980000000ull;  /* P8 Naples DD1.0 */
     k->cores_mask = POWER8_CORE_MASK;
     k->core_pir = pnv_chip_core_pir_p8;
     k->intc_create = pnv_chip_power8_intc_create;
     k->intc_reset = pnv_chip_power8_intc_reset;
     k->intc_destroy = pnv_chip_power8_intc_destroy;
+    k->intc_print_info = pnv_chip_power8_intc_print_info;
     k->isa_create = pnv_chip_power8nvl_isa_create;
     k->dt_populate = pnv_chip_power8_dt_populate;
     k->pic_print_info = pnv_chip_power8_pic_print_info;
+    k->xscom_core_base = pnv_chip_power8_xscom_core_base;
+    k->xscom_pcba = pnv_chip_power8_xscom_pcba;
     dc->desc = "PowerNV Chip POWER8NVL";
 
     device_class_set_parent_realize(dc, pnv_chip_power8_realize,
@@ -1074,35 +1201,23 @@ static void pnv_chip_power9_instance_init(Object *obj)
 
     object_initialize_child(obj, "xive", &chip9->xive, sizeof(chip9->xive),
                             TYPE_PNV_XIVE, &error_abort, NULL);
-    object_property_add_const_link(OBJECT(&chip9->xive), "chip", obj,
-                                   &error_abort);
 
     object_initialize_child(obj, "psi",  &chip9->psi, sizeof(chip9->psi),
                             TYPE_PNV9_PSI, &error_abort, NULL);
-    object_property_add_const_link(OBJECT(&chip9->psi), "chip", obj,
-                                   &error_abort);
 
     object_initialize_child(obj, "lpc",  &chip9->lpc, sizeof(chip9->lpc),
                             TYPE_PNV9_LPC, &error_abort, NULL);
-    object_property_add_const_link(OBJECT(&chip9->lpc), "psi",
-                                   OBJECT(&chip9->psi), &error_abort);
 
     object_initialize_child(obj, "occ",  &chip9->occ, sizeof(chip9->occ),
                             TYPE_PNV9_OCC, &error_abort, NULL);
-    object_property_add_const_link(OBJECT(&chip9->occ), "psi",
-                                   OBJECT(&chip9->psi), &error_abort);
 
     object_initialize_child(obj, "homer",  &chip9->homer, sizeof(chip9->homer),
                             TYPE_PNV9_HOMER, &error_abort, NULL);
-    object_property_add_const_link(OBJECT(&chip9->homer), "chip", obj,
-                                   &error_abort);
 }
 
 static void pnv_chip_quad_realize(Pnv9Chip *chip9, Error **errp)
 {
     PnvChip *chip = PNV_CHIP(chip9);
-    const char *typename = pnv_chip_core_typename(chip);
-    size_t typesize = object_type_get_instance_size(typename);
     int i;
 
     chip9->nr_quads = DIV_ROUND_UP(chip->nr_cores, 4);
@@ -1111,7 +1226,7 @@ static void pnv_chip_quad_realize(Pnv9Chip *chip9, Error **errp)
     for (i = 0; i < chip9->nr_quads; i++) {
         char eq_name[32];
         PnvQuad *eq = &chip9->quads[i];
-        PnvCore *pnv_core = PNV_CORE(chip->cores + (i * 4) * typesize);
+        PnvCore *pnv_core = chip->cores[i * 4];
         int core_id = CPU_CORE(pnv_core)->core_id;
 
         snprintf(eq_name, sizeof(eq_name), "eq[%d]", core_id);
@@ -1163,6 +1278,8 @@ static void pnv_chip_power9_realize(DeviceState *dev, Error **errp)
                             "pc-bar", &error_fatal);
     object_property_set_int(OBJECT(&chip9->xive), PNV9_XIVE_TM_BASE(chip),
                             "tm-bar", &error_fatal);
+    object_property_set_link(OBJECT(&chip9->xive), OBJECT(chip), "chip",
+                             &error_abort);
     object_property_set_bool(OBJECT(&chip9->xive), true, "realized",
                              &local_err);
     if (local_err) {
@@ -1184,6 +1301,8 @@ static void pnv_chip_power9_realize(DeviceState *dev, Error **errp)
                             &PNV_PSI(psi9)->xscom_regs);
 
     /* LPC */
+    object_property_set_link(OBJECT(&chip9->lpc), OBJECT(&chip9->psi), "psi",
+                             &error_abort);
     object_property_set_bool(OBJECT(&chip9->lpc), true, "realized", &local_err);
     if (local_err) {
         error_propagate(errp, local_err);
@@ -1196,6 +1315,8 @@ static void pnv_chip_power9_realize(DeviceState *dev, Error **errp)
                                             (uint64_t) PNV9_LPCM_BASE(chip));
 
     /* Create the simplified OCC model */
+    object_property_set_link(OBJECT(&chip9->occ), OBJECT(&chip9->psi), "psi",
+                             &error_abort);
     object_property_set_bool(OBJECT(&chip9->occ), true, "realized", &local_err);
     if (local_err) {
         error_propagate(errp, local_err);
@@ -1204,41 +1325,143 @@ static void pnv_chip_power9_realize(DeviceState *dev, Error **errp)
     pnv_xscom_add_subregion(chip, PNV9_XSCOM_OCC_BASE, &chip9->occ.xscom_regs);
 
     /* OCC SRAM model */
-    memory_region_add_subregion(get_system_memory(), PNV9_OCC_COMMON_AREA(chip),
+    memory_region_add_subregion(get_system_memory(), PNV9_OCC_SENSOR_BASE(chip),
                                 &chip9->occ.sram_regs);
 
     /* HOMER */
+    object_property_set_link(OBJECT(&chip9->homer), OBJECT(chip), "chip",
+                             &error_abort);
     object_property_set_bool(OBJECT(&chip9->homer), true, "realized",
                              &local_err);
     if (local_err) {
         error_propagate(errp, local_err);
         return;
     }
+    /* Homer Xscom region */
+    pnv_xscom_add_subregion(chip, PNV9_XSCOM_PBA_BASE, &chip9->homer.pba_regs);
+
+    /* Homer mmio region */
     memory_region_add_subregion(get_system_memory(), PNV9_HOMER_BASE(chip),
                                 &chip9->homer.regs);
 }
 
+static uint32_t pnv_chip_power9_xscom_pcba(PnvChip *chip, uint64_t addr)
+{
+    addr &= (PNV9_XSCOM_SIZE - 1);
+    return addr >> 3;
+}
+
 static void pnv_chip_power9_class_init(ObjectClass *klass, void *data)
 {
     DeviceClass *dc = DEVICE_CLASS(klass);
     PnvChipClass *k = PNV_CHIP_CLASS(klass);
 
-    k->chip_type = PNV_CHIP_POWER9;
     k->chip_cfam_id = 0x220d104900008000ull; /* P9 Nimbus DD2.0 */
     k->cores_mask = POWER9_CORE_MASK;
     k->core_pir = pnv_chip_core_pir_p9;
     k->intc_create = pnv_chip_power9_intc_create;
     k->intc_reset = pnv_chip_power9_intc_reset;
     k->intc_destroy = pnv_chip_power9_intc_destroy;
+    k->intc_print_info = pnv_chip_power9_intc_print_info;
     k->isa_create = pnv_chip_power9_isa_create;
     k->dt_populate = pnv_chip_power9_dt_populate;
     k->pic_print_info = pnv_chip_power9_pic_print_info;
+    k->xscom_core_base = pnv_chip_power9_xscom_core_base;
+    k->xscom_pcba = pnv_chip_power9_xscom_pcba;
     dc->desc = "PowerNV Chip POWER9";
 
     device_class_set_parent_realize(dc, pnv_chip_power9_realize,
                                     &k->parent_realize);
 }
 
+static void pnv_chip_power10_instance_init(Object *obj)
+{
+    Pnv10Chip *chip10 = PNV10_CHIP(obj);
+
+    object_initialize_child(obj, "psi",  &chip10->psi, sizeof(chip10->psi),
+                            TYPE_PNV10_PSI, &error_abort, NULL);
+    object_initialize_child(obj, "lpc",  &chip10->lpc, sizeof(chip10->lpc),
+                            TYPE_PNV10_LPC, &error_abort, NULL);
+}
+
+static void pnv_chip_power10_realize(DeviceState *dev, Error **errp)
+{
+    PnvChipClass *pcc = PNV_CHIP_GET_CLASS(dev);
+    PnvChip *chip = PNV_CHIP(dev);
+    Pnv10Chip *chip10 = PNV10_CHIP(dev);
+    Error *local_err = NULL;
+
+    /* XSCOM bridge is first */
+    pnv_xscom_realize(chip, PNV10_XSCOM_SIZE, &local_err);
+    if (local_err) {
+        error_propagate(errp, local_err);
+        return;
+    }
+    sysbus_mmio_map(SYS_BUS_DEVICE(chip), 0, PNV10_XSCOM_BASE(chip));
+
+    pcc->parent_realize(dev, &local_err);
+    if (local_err) {
+        error_propagate(errp, local_err);
+        return;
+    }
+
+    /* Processor Service Interface (PSI) Host Bridge */
+    object_property_set_int(OBJECT(&chip10->psi), PNV10_PSIHB_BASE(chip),
+                            "bar", &error_fatal);
+    object_property_set_bool(OBJECT(&chip10->psi), true, "realized",
+                             &local_err);
+    if (local_err) {
+        error_propagate(errp, local_err);
+        return;
+    }
+    pnv_xscom_add_subregion(chip, PNV10_XSCOM_PSIHB_BASE,
+                            &PNV_PSI(&chip10->psi)->xscom_regs);
+
+    /* LPC */
+    object_property_set_link(OBJECT(&chip10->lpc), OBJECT(&chip10->psi), "psi",
+                             &error_abort);
+    object_property_set_bool(OBJECT(&chip10->lpc), true, "realized",
+                             &local_err);
+    if (local_err) {
+        error_propagate(errp, local_err);
+        return;
+    }
+    memory_region_add_subregion(get_system_memory(), PNV10_LPCM_BASE(chip),
+                                &chip10->lpc.xscom_regs);
+
+    chip->dt_isa_nodename = g_strdup_printf("/lpcm-opb@%" PRIx64 "/lpc@0",
+                                            (uint64_t) PNV10_LPCM_BASE(chip));
+}
+
+static uint32_t pnv_chip_power10_xscom_pcba(PnvChip *chip, uint64_t addr)
+{
+    addr &= (PNV10_XSCOM_SIZE - 1);
+    return addr >> 3;
+}
+
+static void pnv_chip_power10_class_init(ObjectClass *klass, void *data)
+{
+    DeviceClass *dc = DEVICE_CLASS(klass);
+    PnvChipClass *k = PNV_CHIP_CLASS(klass);
+
+    k->chip_cfam_id = 0x120da04900008000ull; /* P10 DD1.0 (with NX) */
+    k->cores_mask = POWER10_CORE_MASK;
+    k->core_pir = pnv_chip_core_pir_p10;
+    k->intc_create = pnv_chip_power10_intc_create;
+    k->intc_reset = pnv_chip_power10_intc_reset;
+    k->intc_destroy = pnv_chip_power10_intc_destroy;
+    k->intc_print_info = pnv_chip_power10_intc_print_info;
+    k->isa_create = pnv_chip_power10_isa_create;
+    k->dt_populate = pnv_chip_power10_dt_populate;
+    k->pic_print_info = pnv_chip_power10_pic_print_info;
+    k->xscom_core_base = pnv_chip_power10_xscom_core_base;
+    k->xscom_pcba = pnv_chip_power10_xscom_pcba;
+    dc->desc = "PowerNV Chip POWER10";
+
+    device_class_set_parent_realize(dc, pnv_chip_power10_realize,
+                                    &k->parent_realize);
+}
+
 static void pnv_chip_core_sanitize(PnvChip *chip, Error **errp)
 {
     PnvChipClass *pcc = PNV_CHIP_GET_CLASS(chip);
@@ -1275,7 +1498,6 @@ static void pnv_chip_core_realize(PnvChip *chip, Error **errp)
     Error *error = NULL;
     PnvChipClass *pcc = PNV_CHIP_GET_CLASS(chip);
     const char *typename = pnv_chip_core_typename(chip);
-    size_t typesize = object_type_get_instance_size(typename);
     int i, core_hwid;
 
     if (!object_class_by_name(typename)) {
@@ -1290,21 +1512,24 @@ static void pnv_chip_core_realize(PnvChip *chip, Error **errp)
         return;
     }
 
-    chip->cores = g_malloc0(typesize * chip->nr_cores);
+    chip->cores = g_new0(PnvCore *, chip->nr_cores);
 
     for (i = 0, core_hwid = 0; (core_hwid < sizeof(chip->cores_mask) * 8)
              && (i < chip->nr_cores); core_hwid++) {
         char core_name[32];
-        void *pnv_core = chip->cores + i * typesize;
+        PnvCore *pnv_core;
         uint64_t xscom_core_base;
 
         if (!(chip->cores_mask & (1ull << core_hwid))) {
             continue;
         }
 
+        pnv_core = PNV_CORE(object_new(typename));
+
         snprintf(core_name, sizeof(core_name), "core[%d]", core_hwid);
-        object_initialize_child(OBJECT(chip), core_name, pnv_core, typesize,
-                                typename, &error_fatal, NULL);
+        object_property_add_child(OBJECT(chip), core_name, OBJECT(pnv_core),
+                                  &error_abort);
+        chip->cores[i] = pnv_core;
         object_property_set_int(OBJECT(pnv_core), ms->smp.threads, "nr-threads",
                                 &error_fatal);
         object_property_set_int(OBJECT(pnv_core), core_hwid,
@@ -1312,20 +1537,16 @@ static void pnv_chip_core_realize(PnvChip *chip, Error **errp)
         object_property_set_int(OBJECT(pnv_core),
                                 pcc->core_pir(chip, core_hwid),
                                 "pir", &error_fatal);
-        object_property_add_const_link(OBJECT(pnv_core), "chip",
-                                       OBJECT(chip), &error_fatal);
+        object_property_set_link(OBJECT(pnv_core), OBJECT(chip), "chip",
+                                 &error_abort);
         object_property_set_bool(OBJECT(pnv_core), true, "realized",
                                  &error_fatal);
 
         /* Each core has an XSCOM MMIO region */
-        if (!pnv_chip_is_power9(chip)) {
-            xscom_core_base = PNV_XSCOM_EX_BASE(core_hwid);
-        } else {
-            xscom_core_base = PNV9_XSCOM_EC_BASE(core_hwid);
-        }
+        xscom_core_base = pcc->xscom_core_base(chip, core_hwid);
 
         pnv_xscom_add_subregion(chip, xscom_core_base,
-                                &PNV_CORE(pnv_core)->xscom_regs);
+                                &pnv_core->xscom_regs);
         i++;
     }
 }
@@ -1362,6 +1583,23 @@ static void pnv_chip_class_init(ObjectClass *klass, void *data)
     dc->desc = "PowerNV Chip";
 }
 
+PowerPCCPU *pnv_chip_find_cpu(PnvChip *chip, uint32_t pir)
+{
+    int i, j;
+
+    for (i = 0; i < chip->nr_cores; i++) {
+        PnvCore *pc = chip->cores[i];
+        CPUCore *cc = CPU_CORE(pc);
+
+        for (j = 0; j < cc->nr_threads; j++) {
+            if (ppc_cpu_pir(pc->threads[j]) == pir) {
+                return pc->threads[j];
+            }
+        }
+    }
+    return NULL;
+}
+
 static ICSState *pnv_ics_get(XICSFabric *xi, int irq)
 {
     PnvMachineState *pnv = PNV_MACHINE(xi);
@@ -1405,11 +1643,9 @@ static void pnv_pic_print_info(InterruptStatsProvider *obj,
     CPU_FOREACH(cs) {
         PowerPCCPU *cpu = POWERPC_CPU(cs);
 
-        if (pnv_chip_is_power9(pnv->chips[0])) {
-            xive_tctx_pic_print_info(XIVE_TCTX(pnv_cpu_state(cpu)->intc), mon);
-        } else {
-            icp_pic_print_info(ICP(pnv_cpu_state(cpu)->intc), mon);
-        }
+        /* XXX: loop on each chip/core/thread instead of CPU_FOREACH() */
+        PNV_CHIP_GET_CLASS(pnv->chips[0])->intc_print_info(pnv->chips[0], cpu,
+                                                           mon);
     }
 
     for (i = 0; i < pnv->num_chips; i++) {
@@ -1417,6 +1653,49 @@ static void pnv_pic_print_info(InterruptStatsProvider *obj,
     }
 }
 
+static int pnv_match_nvt(XiveFabric *xfb, uint8_t format,
+                         uint8_t nvt_blk, uint32_t nvt_idx,
+                         bool cam_ignore, uint8_t priority,
+                         uint32_t logic_serv,
+                         XiveTCTXMatch *match)
+{
+    PnvMachineState *pnv = PNV_MACHINE(xfb);
+    int total_count = 0;
+    int i;
+
+    for (i = 0; i < pnv->num_chips; i++) {
+        Pnv9Chip *chip9 = PNV9_CHIP(pnv->chips[i]);
+        XivePresenter *xptr = XIVE_PRESENTER(&chip9->xive);
+        XivePresenterClass *xpc = XIVE_PRESENTER_GET_CLASS(xptr);
+        int count;
+
+        count = xpc->match_nvt(xptr, format, nvt_blk, nvt_idx, cam_ignore,
+                               priority, logic_serv, match);
+
+        if (count < 0) {
+            return count;
+        }
+
+        total_count += count;
+    }
+
+    return total_count;
+}
+
+PnvChip *pnv_get_chip(uint32_t chip_id)
+{
+    PnvMachineState *pnv = PNV_MACHINE(qdev_get_machine());
+    int i;
+
+    for (i = 0; i < pnv->num_chips; i++) {
+        PnvChip *chip = pnv->chips[i];
+        if (chip->chip_id == chip_id) {
+            return chip;
+        }
+    }
+    return NULL;
+}
+
 static void pnv_get_num_chips(Object *obj, Visitor *v, const char *name,
                               void *opaque, Error **errp)
 {
@@ -1468,6 +1747,8 @@ static void pnv_machine_power8_class_init(ObjectClass *oc, void *data)
 {
     MachineClass *mc = MACHINE_CLASS(oc);
     XICSFabricClass *xic = XICS_FABRIC_CLASS(oc);
+    PnvMachineClass *pmc = PNV_MACHINE_CLASS(oc);
+    static const char compat[] = "qemu,powernv8\0qemu,powernv\0ibm,powernv";
 
     mc->desc = "IBM PowerNV (Non-Virtualized) POWER8";
     mc->default_cpu_type = POWERPC_CPU_TYPE_NAME("power8_v2.0");
@@ -1475,16 +1756,41 @@ static void pnv_machine_power8_class_init(ObjectClass *oc, void *data)
     xic->icp_get = pnv_icp_get;
     xic->ics_get = pnv_ics_get;
     xic->ics_resend = pnv_ics_resend;
+
+    pmc->compat = compat;
+    pmc->compat_size = sizeof(compat);
 }
 
 static void pnv_machine_power9_class_init(ObjectClass *oc, void *data)
 {
     MachineClass *mc = MACHINE_CLASS(oc);
+    XiveFabricClass *xfc = XIVE_FABRIC_CLASS(oc);
+    PnvMachineClass *pmc = PNV_MACHINE_CLASS(oc);
+    static const char compat[] = "qemu,powernv9\0ibm,powernv";
 
     mc->desc = "IBM PowerNV (Non-Virtualized) POWER9";
     mc->default_cpu_type = POWERPC_CPU_TYPE_NAME("power9_v2.0");
+    xfc->match_nvt = pnv_match_nvt;
 
     mc->alias = "powernv";
+
+    pmc->compat = compat;
+    pmc->compat_size = sizeof(compat);
+    pmc->dt_power_mgt = pnv_dt_power_mgt;
+}
+
+static void pnv_machine_power10_class_init(ObjectClass *oc, void *data)
+{
+    MachineClass *mc = MACHINE_CLASS(oc);
+    PnvMachineClass *pmc = PNV_MACHINE_CLASS(oc);
+    static const char compat[] = "qemu,powernv10\0ibm,powernv";
+
+    mc->desc = "IBM PowerNV (Non-Virtualized) POWER10";
+    mc->default_cpu_type = POWERPC_CPU_TYPE_NAME("power10_v1.0");
+
+    pmc->compat = compat;
+    pmc->compat_size = sizeof(compat);
+    pmc->dt_power_mgt = pnv_dt_power_mgt;
 }
 
 static void pnv_machine_class_init(ObjectClass *oc, void *data)
@@ -1524,11 +1830,27 @@ static void pnv_machine_class_init(ObjectClass *oc, void *data)
         .parent        = TYPE_PNV9_CHIP,          \
     }
 
+#define DEFINE_PNV10_CHIP_TYPE(type, class_initfn) \
+    {                                              \
+        .name          = type,                     \
+        .class_init    = class_initfn,             \
+        .parent        = TYPE_PNV10_CHIP,          \
+    }
+
 static const TypeInfo types[] = {
     {
+        .name          = MACHINE_TYPE_NAME("powernv10"),
+        .parent        = TYPE_PNV_MACHINE,
+        .class_init    = pnv_machine_power10_class_init,
+    },
+    {
         .name          = MACHINE_TYPE_NAME("powernv9"),
         .parent        = TYPE_PNV_MACHINE,
         .class_init    = pnv_machine_power9_class_init,
+        .interfaces = (InterfaceInfo[]) {
+            { TYPE_XIVE_FABRIC },
+            { },
+        },
     },
     {
         .name          = MACHINE_TYPE_NAME("powernv8"),
@@ -1546,6 +1868,7 @@ static const TypeInfo types[] = {
         .instance_size = sizeof(PnvMachineState),
         .instance_init = pnv_machine_instance_init,
         .class_init    = pnv_machine_class_init,
+        .class_size    = sizeof(PnvMachineClass),
         .interfaces = (InterfaceInfo[]) {
             { TYPE_INTERRUPT_STATS_PROVIDER },
             { },
@@ -1561,6 +1884,17 @@ static const TypeInfo types[] = {
     },
 
     /*
+     * P10 chip and variants
+     */
+    {
+        .name          = TYPE_PNV10_CHIP,
+        .parent        = TYPE_PNV_CHIP,
+        .instance_init = pnv_chip_power10_instance_init,
+        .instance_size = sizeof(Pnv10Chip),
+    },
+    DEFINE_PNV10_CHIP_TYPE(TYPE_PNV_CHIP_POWER10, pnv_chip_power10_class_init),
+
+    /*
      * P9 chip and variants
      */
     {
diff --git a/hw/ppc/pnv_bmc.c b/hw/ppc/pnv_bmc.c
index dc5e918..07fa1e1 100644
--- a/hw/ppc/pnv_bmc.c
+++ b/hw/ppc/pnv_bmc.c
@@ -17,6 +17,8 @@
  */
 
 #include "qemu/osdep.h"
+#include "qemu-common.h"
+#include "qapi/error.h"
 #include "target/ppc/cpu.h"
 #include "qemu/log.h"
 #include "hw/ipmi/ipmi.h"
@@ -114,3 +116,117 @@ void pnv_dt_bmc_sensors(IPMIBmc *bmc, void *fdt)
                                sdr->sensor_type)));
     }
 }
+
+/*
+ * HIOMAP protocol handler
+ */
+#define HIOMAP_C_RESET                  1
+#define HIOMAP_C_GET_INFO               2
+#define HIOMAP_C_GET_FLASH_INFO         3
+#define HIOMAP_C_CREATE_READ_WINDOW     4
+#define HIOMAP_C_CLOSE_WINDOW           5
+#define HIOMAP_C_CREATE_WRITE_WINDOW    6
+#define HIOMAP_C_MARK_DIRTY             7
+#define HIOMAP_C_FLUSH                  8
+#define HIOMAP_C_ACK                    9
+#define HIOMAP_C_ERASE                  10
+#define HIOMAP_C_DEVICE_NAME            11
+#define HIOMAP_C_LOCK                   12
+
+#define BLOCK_SHIFT                     12 /* 4K */
+
+static uint16_t bytes_to_blocks(uint32_t bytes)
+{
+    return bytes >> BLOCK_SHIFT;
+}
+
+static void hiomap_cmd(IPMIBmcSim *ibs, uint8_t *cmd, unsigned int cmd_len,
+                       RspBuffer *rsp)
+{
+    PnvMachineState *pnv = PNV_MACHINE(qdev_get_machine());
+    PnvPnor *pnor = pnv->pnor;
+    uint32_t pnor_size = pnor->size;
+    uint32_t pnor_addr = PNOR_SPI_OFFSET;
+    bool readonly = false;
+
+    rsp_buffer_push(rsp, cmd[2]);
+    rsp_buffer_push(rsp, cmd[3]);
+
+    switch (cmd[2]) {
+    case HIOMAP_C_MARK_DIRTY:
+    case HIOMAP_C_FLUSH:
+    case HIOMAP_C_ERASE:
+    case HIOMAP_C_ACK:
+        break;
+
+    case HIOMAP_C_GET_INFO:
+        rsp_buffer_push(rsp, 2);  /* Version 2 */
+        rsp_buffer_push(rsp, BLOCK_SHIFT); /* block size */
+        rsp_buffer_push(rsp, 0);  /* Timeout */
+        rsp_buffer_push(rsp, 0);  /* Timeout */
+        break;
+
+    case HIOMAP_C_GET_FLASH_INFO:
+        rsp_buffer_push(rsp, bytes_to_blocks(pnor_size) & 0xFF);
+        rsp_buffer_push(rsp, bytes_to_blocks(pnor_size) >> 8);
+        rsp_buffer_push(rsp, 0x01);  /* erase size */
+        rsp_buffer_push(rsp, 0x00);  /* erase size */
+        break;
+
+    case HIOMAP_C_CREATE_READ_WINDOW:
+        readonly = true;
+        /* Fall through */
+
+    case HIOMAP_C_CREATE_WRITE_WINDOW:
+        memory_region_set_readonly(&pnor->mmio, readonly);
+        memory_region_set_enabled(&pnor->mmio, true);
+
+        rsp_buffer_push(rsp, bytes_to_blocks(pnor_addr) & 0xFF);
+        rsp_buffer_push(rsp, bytes_to_blocks(pnor_addr) >> 8);
+        rsp_buffer_push(rsp, bytes_to_blocks(pnor_size) & 0xFF);
+        rsp_buffer_push(rsp, bytes_to_blocks(pnor_size) >> 8);
+        rsp_buffer_push(rsp, 0x00); /* offset */
+        rsp_buffer_push(rsp, 0x00); /* offset */
+        break;
+
+    case HIOMAP_C_CLOSE_WINDOW:
+        memory_region_set_enabled(&pnor->mmio, false);
+        break;
+
+    case HIOMAP_C_DEVICE_NAME:
+    case HIOMAP_C_RESET:
+    case HIOMAP_C_LOCK:
+    default:
+        qemu_log_mask(LOG_GUEST_ERROR, "HIOMAP: unknow command %02X\n", cmd[2]);
+        break;
+    }
+}
+
+#define HIOMAP   0x5a
+
+static const IPMICmdHandler hiomap_cmds[] = {
+    [HIOMAP] = { hiomap_cmd, 3 },
+};
+
+static const IPMINetfn hiomap_netfn = {
+    .cmd_nums = ARRAY_SIZE(hiomap_cmds),
+    .cmd_handlers = hiomap_cmds
+};
+
+/*
+ * Instantiate the machine BMC. PowerNV uses the QEMU internal
+ * simulator but it could also be external.
+ */
+IPMIBmc *pnv_bmc_create(void)
+{
+    Object *obj;
+
+    obj = object_new(TYPE_IPMI_BMC_SIMULATOR);
+    object_property_set_bool(obj, true, "realized", &error_fatal);
+
+    /* Install the HIOMAP protocol handlers to access the PNOR */
+    ipmi_sim_register_netfn(IPMI_BMC_SIMULATOR(obj), IPMI_NETFN_OEM,
+                            &hiomap_netfn);
+
+    return IPMI_BMC(obj);
+}
diff --git a/hw/ppc/pnv_core.c b/hw/ppc/pnv_core.c
index 61b3d3c..2651044 100644
--- a/hw/ppc/pnv_core.c
+++ b/hw/ppc/pnv_core.c
@@ -217,15 +217,8 @@ static void pnv_core_realize(DeviceState *dev, Error **errp)
     void *obj;
     int i, j;
     char name[32];
-    Object *chip;
 
-    chip = object_property_get_link(OBJECT(dev), "chip", &local_err);
-    if (!chip) {
-        error_propagate_prepend(errp, local_err,
-                                "required link 'chip' not found: ");
-        return;
-    }
-    pc->chip = PNV_CHIP(chip);
+    assert(pc->chip);
 
     pc->threads = g_new(PowerPCCPU *, cc->nr_threads);
     for (i = 0; i < cc->nr_threads; i++) {
@@ -254,6 +247,7 @@ static void pnv_core_realize(DeviceState *dev, Error **errp)
     }
 
     snprintf(name, sizeof(name), "xscom-core.%d", cc->core_id);
+    /* TODO: check PNV_XSCOM_EX_SIZE for p10 */
     pnv_xscom_region_init(&pc->xscom_regs, OBJECT(dev), pcc->xscom_ops,
                           pc, name, PNV_XSCOM_EX_SIZE);
 
@@ -297,6 +291,7 @@ static void pnv_core_unrealize(DeviceState *dev, Error **errp)
 
 static Property pnv_core_properties[] = {
     DEFINE_PROP_UINT32("pir", PnvCore, pir, 0),
+    DEFINE_PROP_LINK("chip", PnvCore, chip, TYPE_PNV_CHIP, PnvChip *),
     DEFINE_PROP_END_OF_LIST(),
 };
 
@@ -314,6 +309,14 @@ static void pnv_core_power9_class_init(ObjectClass *oc, void *data)
     pcc->xscom_ops = &pnv_core_power9_xscom_ops;
 }
 
+static void pnv_core_power10_class_init(ObjectClass *oc, void *data)
+{
+    PnvCoreClass *pcc = PNV_CORE_CLASS(oc);
+
+    /* TODO: Use the P9 XSCOMs for now on P10 */
+    pcc->xscom_ops = &pnv_core_power9_xscom_ops;
+}
+
 static void pnv_core_class_init(ObjectClass *oc, void *data)
 {
     DeviceClass *dc = DEVICE_CLASS(oc);
@@ -343,6 +346,7 @@ static const TypeInfo pnv_core_infos[] = {
     DEFINE_PNV_CORE_TYPE(power8, "power8_v2.0"),
     DEFINE_PNV_CORE_TYPE(power8, "power8nvl_v1.0"),
     DEFINE_PNV_CORE_TYPE(power9, "power9_v2.0"),
+    DEFINE_PNV_CORE_TYPE(power10, "power10_v1.0"),
 };
 
 DEFINE_TYPES(pnv_core_infos)
diff --git a/hw/ppc/pnv_homer.c b/hw/ppc/pnv_homer.c
index cc881a3..a08b791 100644
--- a/hw/ppc/pnv_homer.c
+++ b/hw/ppc/pnv_homer.c
@@ -17,13 +17,16 @@
  */
 
 #include "qemu/osdep.h"
+#include "qemu/log.h"
 #include "qapi/error.h"
 #include "exec/hwaddr.h"
 #include "exec/memory.h"
 #include "sysemu/cpus.h"
 #include "hw/qdev-core.h"
+#include "hw/qdev-properties.h"
 #include "hw/ppc/pnv.h"
 #include "hw/ppc/pnv_homer.h"
+#include "hw/ppc/pnv_xscom.h"
 
 
 static bool core_max_array(PnvHomer *homer, hwaddr addr)
@@ -113,10 +116,67 @@ static const MemoryRegionOps pnv_power8_homer_ops = {
     .endianness = DEVICE_BIG_ENDIAN,
 };
 
+/* P8 PBA BARs */
+#define PBA_BAR0                     0x00
+#define PBA_BAR1                     0x01
+#define PBA_BAR2                     0x02
+#define PBA_BAR3                     0x03
+#define PBA_BARMASK0                 0x04
+#define PBA_BARMASK1                 0x05
+#define PBA_BARMASK2                 0x06
+#define PBA_BARMASK3                 0x07
+
+static uint64_t pnv_homer_power8_pba_read(void *opaque, hwaddr addr,
+                                          unsigned size)
+{
+    PnvHomer *homer = PNV_HOMER(opaque);
+    PnvChip *chip = homer->chip;
+    uint32_t reg = addr >> 3;
+    uint64_t val = 0;
+
+    switch (reg) {
+    case PBA_BAR0:
+        val = PNV_HOMER_BASE(chip);
+        break;
+    case PBA_BARMASK0: /* P8 homer region mask */
+        val = (PNV_HOMER_SIZE - 1) & 0x300000;
+        break;
+    case PBA_BAR3: /* P8 occ common area */
+        val = PNV_OCC_COMMON_AREA_BASE;
+        break;
+    case PBA_BARMASK3: /* P8 occ common area mask */
+        val = (PNV_OCC_COMMON_AREA_SIZE - 1) & 0x700000;
+        break;
+    default:
+        qemu_log_mask(LOG_UNIMP, "PBA: read to unimplemented register: Ox%"
+                      HWADDR_PRIx "\n", addr >> 3);
+    }
+    return val;
+}
+
+static void pnv_homer_power8_pba_write(void *opaque, hwaddr addr,
+                                         uint64_t val, unsigned size)
+{
+    qemu_log_mask(LOG_UNIMP, "PBA: write to unimplemented register: Ox%"
+                  HWADDR_PRIx "\n", addr >> 3);
+}
+
+static const MemoryRegionOps pnv_homer_power8_pba_ops = {
+    .read = pnv_homer_power8_pba_read,
+    .write = pnv_homer_power8_pba_write,
+    .valid.min_access_size = 8,
+    .valid.max_access_size = 8,
+    .impl.min_access_size = 8,
+    .impl.max_access_size = 8,
+    .endianness = DEVICE_BIG_ENDIAN,
+};
+
 static void pnv_homer_power8_class_init(ObjectClass *klass, void *data)
 {
     PnvHomerClass *homer = PNV_HOMER_CLASS(klass);
 
+    homer->pba_size = PNV_XSCOM_PBA_SIZE;
+    homer->pba_ops = &pnv_homer_power8_pba_ops;
     homer->homer_size = PNV_HOMER_SIZE;
     homer->homer_ops = &pnv_power8_homer_ops;
     homer->core_max_base = PNV8_CORE_MAX_BASE;
@@ -209,10 +269,57 @@ static const MemoryRegionOps pnv_power9_homer_ops = {
     .endianness = DEVICE_BIG_ENDIAN,
 };
 
+static uint64_t pnv_homer_power9_pba_read(void *opaque, hwaddr addr,
+                                          unsigned size)
+{
+    PnvHomer *homer = PNV_HOMER(opaque);
+    PnvChip *chip = homer->chip;
+    uint32_t reg = addr >> 3;
+    uint64_t val = 0;
+
+    switch (reg) {
+    case PBA_BAR0:
+        val = PNV9_HOMER_BASE(chip);
+        break;
+    case PBA_BARMASK0: /* P9 homer region mask */
+        val = (PNV9_HOMER_SIZE - 1) & 0x300000;
+        break;
+    case PBA_BAR2: /* P9 occ common area */
+        val = PNV9_OCC_COMMON_AREA_BASE;
+        break;
+    case PBA_BARMASK2: /* P9 occ common area size */
+        val = (PNV9_OCC_COMMON_AREA_SIZE - 1) & 0x700000;
+        break;
+    default:
+        qemu_log_mask(LOG_UNIMP, "PBA: read to unimplemented register: Ox%"
+                      HWADDR_PRIx "\n", addr >> 3);
+    }
+    return val;
+}
+
+static void pnv_homer_power9_pba_write(void *opaque, hwaddr addr,
+                                         uint64_t val, unsigned size)
+{
+    qemu_log_mask(LOG_UNIMP, "PBA: write to unimplemented register: Ox%"
+                  HWADDR_PRIx "\n", addr >> 3);
+}
+
+static const MemoryRegionOps pnv_homer_power9_pba_ops = {
+    .read = pnv_homer_power9_pba_read,
+    .write = pnv_homer_power9_pba_write,
+    .valid.min_access_size = 8,
+    .valid.max_access_size = 8,
+    .impl.min_access_size = 8,
+    .impl.max_access_size = 8,
+    .endianness = DEVICE_BIG_ENDIAN,
+};
+
 static void pnv_homer_power9_class_init(ObjectClass *klass, void *data)
 {
     PnvHomerClass *homer = PNV_HOMER_CLASS(klass);
 
+    homer->pba_size = PNV9_XSCOM_PBA_SIZE;
+    homer->pba_ops = &pnv_homer_power9_pba_ops;
     homer->homer_size = PNV9_HOMER_SIZE;
     homer->homer_ops = &pnv_power9_homer_ops;
     homer->core_max_base = PNV9_CORE_MAX_BASE;
@@ -229,28 +336,30 @@ static void pnv_homer_realize(DeviceState *dev, Error **errp)
 {
     PnvHomer *homer = PNV_HOMER(dev);
     PnvHomerClass *hmrc = PNV_HOMER_GET_CLASS(homer);
-    Object *obj;
-    Error *local_err = NULL;
-
-    obj = object_property_get_link(OBJECT(dev), "chip", &local_err);
-    if (!obj) {
-        error_propagate(errp, local_err);
-        error_prepend(errp, "required link 'chip' not found: ");
-        return;
-    }
-    homer->chip = PNV_CHIP(obj);
+
+    assert(homer->chip);
+
+    pnv_xscom_region_init(&homer->pba_regs, OBJECT(dev), hmrc->pba_ops,
+                          homer, "xscom-pba", hmrc->pba_size);
+
     /* homer region */
     memory_region_init_io(&homer->regs, OBJECT(dev),
                           hmrc->homer_ops, homer, "homer-main-memory",
                           hmrc->homer_size);
 }
 
+static Property pnv_homer_properties[] = {
+    DEFINE_PROP_LINK("chip", PnvHomer, chip, TYPE_PNV_CHIP, PnvChip *),
+    DEFINE_PROP_END_OF_LIST(),
+};
+
 static void pnv_homer_class_init(ObjectClass *klass, void *data)
 {
     DeviceClass *dc = DEVICE_CLASS(klass);
 
     dc->realize = pnv_homer_realize;
     dc->desc = "PowerNV HOMER Memory";
+    dc->props = pnv_homer_properties;
 }
 
 static const TypeInfo pnv_homer_type_info = {
diff --git a/hw/ppc/pnv_lpc.c b/hw/ppc/pnv_lpc.c
index 9466d4a..18256d9 100644
--- a/hw/ppc/pnv_lpc.c
+++ b/hw/ppc/pnv_lpc.c
@@ -24,7 +24,7 @@
 #include "qemu/module.h"
 #include "hw/irq.h"
 #include "hw/isa/isa.h"
-
+#include "hw/qdev-properties.h"
 #include "hw/ppc/pnv.h"
 #include "hw/ppc/pnv_lpc.h"
 #include "hw/ppc/pnv_xscom.h"
@@ -86,7 +86,7 @@ enum {
 #define ISA_FW_SIZE             0x10000000
 #define LPC_IO_OPB_ADDR         0xd0010000
 #define LPC_IO_OPB_SIZE         0x00010000
-#define LPC_MEM_OPB_ADDR        0xe0010000
+#define LPC_MEM_OPB_ADDR        0xe0000000
 #define LPC_MEM_OPB_SIZE        0x10000000
 #define LPC_FW_OPB_ADDR         0xf0000000
 #define LPC_FW_OPB_SIZE         0x10000000
@@ -122,26 +122,36 @@ static int pnv_lpc_dt_xscom(PnvXScomInterface *dev, void *fdt, int xscom_offset)
 }
 
 /* POWER9 only */
-int pnv_dt_lpc(PnvChip *chip, void *fdt, int root_offset)
+int pnv_dt_lpc(PnvChip *chip, void *fdt, int root_offset, uint64_t lpcm_addr,
+               uint64_t lpcm_size)
 {
     const char compat[] = "ibm,power9-lpcm-opb\0simple-bus";
     const char lpc_compat[] = "ibm,power9-lpc\0ibm,lpc";
     char *name;
     int offset, lpcm_offset;
-    uint64_t lpcm_addr = PNV9_LPCM_BASE(chip);
     uint32_t opb_ranges[8] = { 0,
                                cpu_to_be32(lpcm_addr >> 32),
                                cpu_to_be32((uint32_t)lpcm_addr),
-                               cpu_to_be32(PNV9_LPCM_SIZE / 2),
-                               cpu_to_be32(PNV9_LPCM_SIZE / 2),
+                               cpu_to_be32(lpcm_size / 2),
+                               cpu_to_be32(lpcm_size / 2),
                                cpu_to_be32(lpcm_addr >> 32),
-                               cpu_to_be32(PNV9_LPCM_SIZE / 2),
-                               cpu_to_be32(PNV9_LPCM_SIZE / 2),
+                               cpu_to_be32(lpcm_size / 2),
+                               cpu_to_be32(lpcm_size / 2),
     };
     uint32_t opb_reg[4] = { cpu_to_be32(lpcm_addr >> 32),
                             cpu_to_be32((uint32_t)lpcm_addr),
-                            cpu_to_be32(PNV9_LPCM_SIZE >> 32),
-                            cpu_to_be32((uint32_t)PNV9_LPCM_SIZE),
+                            cpu_to_be32(lpcm_size >> 32),
+                            cpu_to_be32((uint32_t)lpcm_size),
+    };
+    uint32_t lpc_ranges[12] = { 0, 0,
+                                cpu_to_be32(LPC_MEM_OPB_ADDR),
+                                cpu_to_be32(LPC_MEM_OPB_SIZE),
+                                cpu_to_be32(1), 0,
+                                cpu_to_be32(LPC_IO_OPB_ADDR),
+                                cpu_to_be32(LPC_IO_OPB_SIZE),
+                                cpu_to_be32(3), 0,
+                                cpu_to_be32(LPC_FW_OPB_ADDR),
+                                cpu_to_be32(LPC_FW_OPB_SIZE),
     };
     uint32_t reg[2];
 
@@ -211,6 +221,8 @@ int pnv_dt_lpc(PnvChip *chip, void *fdt, int root_offset)
     _FDT((fdt_setprop_cell(fdt, offset, "#size-cells", 1)));
     _FDT((fdt_setprop(fdt, offset, "compatible", lpc_compat,
                       sizeof(lpc_compat))));
+    _FDT((fdt_setprop(fdt, offset, "ranges", lpc_ranges,
+                      sizeof(lpc_ranges))));
 
     return 0;
 }
@@ -679,20 +691,24 @@ static const TypeInfo pnv_lpc_power9_info = {
     .class_init    = pnv_lpc_power9_class_init,
 };
 
+static void pnv_lpc_power10_class_init(ObjectClass *klass, void *data)
+{
+    DeviceClass *dc = DEVICE_CLASS(klass);
+
+    dc->desc = "PowerNV LPC Controller POWER10";
+}
+
+static const TypeInfo pnv_lpc_power10_info = {
+    .name          = TYPE_PNV10_LPC,
+    .parent        = TYPE_PNV9_LPC,
+    .class_init    = pnv_lpc_power10_class_init,
+};
+
 static void pnv_lpc_realize(DeviceState *dev, Error **errp)
 {
     PnvLpcController *lpc = PNV_LPC(dev);
-    Object *obj;
-    Error *local_err = NULL;
 
-    obj = object_property_get_link(OBJECT(dev), "psi", &local_err);
-    if (!obj) {
-        error_propagate(errp, local_err);
-        error_prepend(errp, "required link 'psi' not found: ");
-        return;
-    }
-    /* The LPC controller needs PSI to generate interrupts  */
-    lpc->psi = PNV_PSI(obj);
+    assert(lpc->psi);
 
     /* Reg inits */
     lpc->lpc_hc_fw_rd_acc_size = LPC_HC_FW_RD_4B;
@@ -734,12 +750,18 @@ static void pnv_lpc_realize(DeviceState *dev, Error **errp)
                                 &lpc->lpc_hc_regs);
 }
 
+static Property pnv_lpc_properties[] = {
+    DEFINE_PROP_LINK("psi", PnvLpcController, psi, TYPE_PNV_PSI, PnvPsi *),
+    DEFINE_PROP_END_OF_LIST(),
+};
+
 static void pnv_lpc_class_init(ObjectClass *klass, void *data)
 {
     DeviceClass *dc = DEVICE_CLASS(klass);
 
     dc->realize = pnv_lpc_realize;
     dc->desc = "PowerNV LPC Controller";
+    dc->props = pnv_lpc_properties;
 }
 
 static const TypeInfo pnv_lpc_info = {
@@ -755,6 +777,7 @@ static void pnv_lpc_register_types(void)
     type_register_static(&pnv_lpc_info);
     type_register_static(&pnv_lpc_power8_info);
     type_register_static(&pnv_lpc_power9_info);
+    type_register_static(&pnv_lpc_power10_info);
 }
 
 type_init(pnv_lpc_register_types)
@@ -801,6 +824,7 @@ ISABus *pnv_lpc_isa_create(PnvLpcController *lpc, bool use_cpld, Error **errp)
     ISABus *isa_bus;
     qemu_irq *irqs;
     qemu_irq_handler handler;
+    PnvMachineState *pnv = PNV_MACHINE(qdev_get_machine());
 
     /* let isa_bus_new() create its own bridge on SysBus otherwise
      * devices speficied on the command line won't find the bus and
@@ -825,5 +849,17 @@ ISABus *pnv_lpc_isa_create(PnvLpcController *lpc, bool use_cpld, Error **errp)
     irqs = qemu_allocate_irqs(handler, lpc, ISA_NUM_IRQS);
 
     isa_bus_irqs(isa_bus, irqs);
+
+    /*
+     * TODO: Map PNOR on the LPC FW address space on demand ?
+     */
+    memory_region_add_subregion(&lpc->isa_fw, PNOR_SPI_OFFSET,
+                                &pnv->pnor->mmio);
+    /*
+     * Start disabled. The HIOMAP protocol will activate the mapping
+     * with HIOMAP_C_CREATE_WRITE_WINDOW
+     */
+    memory_region_set_enabled(&pnv->pnor->mmio, false);
+
     return isa_bus;
 }
diff --git a/hw/ppc/pnv_occ.c b/hw/ppc/pnv_occ.c
index 785653b..924fdabc 100644
--- a/hw/ppc/pnv_occ.c
+++ b/hw/ppc/pnv_occ.c
@@ -21,7 +21,7 @@
 #include "qapi/error.h"
 #include "qemu/log.h"
 #include "qemu/module.h"
-
+#include "hw/qdev-properties.h"
 #include "hw/ppc/pnv.h"
 #include "hw/ppc/pnv_xscom.h"
 #include "hw/ppc/pnv_occ.h"
@@ -167,9 +167,7 @@ static void pnv_occ_power8_class_init(ObjectClass *klass, void *data)
     PnvOCCClass *poc = PNV_OCC_CLASS(klass);
 
     poc->xscom_size = PNV_XSCOM_OCC_SIZE;
-    poc->sram_size = PNV_OCC_COMMON_AREA_SIZE;
     poc->xscom_ops = &pnv_occ_power8_xscom_ops;
-    poc->sram_ops = &pnv_occ_sram_ops;
     poc->psi_irq = PSIHB_IRQ_OCC;
 }
 
@@ -240,9 +238,7 @@ static void pnv_occ_power9_class_init(ObjectClass *klass, void *data)
     PnvOCCClass *poc = PNV_OCC_CLASS(klass);
 
     poc->xscom_size = PNV9_XSCOM_OCC_SIZE;
-    poc->sram_size = PNV9_OCC_COMMON_AREA_SIZE;
     poc->xscom_ops = &pnv_occ_power9_xscom_ops;
-    poc->sram_ops = &pnv_occ_sram_ops;
     poc->psi_irq = PSIHB9_IRQ_OCC;
 }
 
@@ -257,34 +253,33 @@ static void pnv_occ_realize(DeviceState *dev, Error **errp)
 {
     PnvOCC *occ = PNV_OCC(dev);
     PnvOCCClass *poc = PNV_OCC_GET_CLASS(occ);
-    Object *obj;
-    Error *local_err = NULL;
 
-    occ->occmisc = 0;
+    assert(occ->psi);
 
-    obj = object_property_get_link(OBJECT(dev), "psi", &local_err);
-    if (!obj) {
-        error_propagate(errp, local_err);
-        error_prepend(errp, "required link 'psi' not found: ");
-        return;
-    }
-    occ->psi = PNV_PSI(obj);
+    occ->occmisc = 0;
 
     /* XScom region for OCC registers */
     pnv_xscom_region_init(&occ->xscom_regs, OBJECT(dev), poc->xscom_ops,
                           occ, "xscom-occ", poc->xscom_size);
 
-    /* XScom region for OCC SRAM registers */
-    pnv_xscom_region_init(&occ->sram_regs, OBJECT(dev), poc->sram_ops,
-                          occ, "occ-common-area", poc->sram_size);
+    /* OCC common area mmio region for OCC SRAM registers */
+    memory_region_init_io(&occ->sram_regs, OBJECT(dev), &pnv_occ_sram_ops,
+                          occ, "occ-common-area",
+                          PNV_OCC_SENSOR_DATA_BLOCK_SIZE);
 }
 
+static Property pnv_occ_properties[] = {
+    DEFINE_PROP_LINK("psi", PnvOCC, psi, TYPE_PNV_PSI, PnvPsi *),
+    DEFINE_PROP_END_OF_LIST(),
+};
+
 static void pnv_occ_class_init(ObjectClass *klass, void *data)
 {
     DeviceClass *dc = DEVICE_CLASS(klass);
 
     dc->realize = pnv_occ_realize;
     dc->desc = "PowerNV OCC Controller";
+    dc->props = pnv_occ_properties;
 }
 
 static const TypeInfo pnv_occ_type_info = {
diff --git a/hw/ppc/pnv_pnor.c b/hw/ppc/pnv_pnor.c
new file mode 100644
index 0000000..bfb1e92
--- /dev/null
+++ b/hw/ppc/pnv_pnor.c
@@ -0,0 +1,135 @@
+/*
+ * QEMU PowerNV PNOR simple model
+ *
+ * Copyright (c) 2015-2019, IBM Corporation.
+ *
+ * This code is licensed under the GPL version 2 or later. See the
+ * COPYING file in the top-level directory.
+ */
+
+#include "qemu/osdep.h"
+#include "qapi/error.h"
+#include "qemu/error-report.h"
+#include "qemu/log.h"
+#include "sysemu/block-backend.h"
+#include "sysemu/blockdev.h"
+#include "hw/loader.h"
+#include "hw/ppc/pnv_pnor.h"
+#include "hw/qdev-properties.h"
+
+static uint64_t pnv_pnor_read(void *opaque, hwaddr addr, unsigned size)
+{
+    PnvPnor *s = PNV_PNOR(opaque);
+    uint64_t ret = 0;
+    int i;
+
+    for (i = 0; i < size; i++) {
+        ret |= (uint64_t) s->storage[addr + i] << (8 * (size - i - 1));
+    }
+
+    return ret;
+}
+
+static void pnv_pnor_update(PnvPnor *s, int offset, int size)
+{
+    int offset_end;
+
+    if (s->blk) {
+        return;
+    }
+
+    offset_end = offset + size;
+    offset = QEMU_ALIGN_DOWN(offset, BDRV_SECTOR_SIZE);
+    offset_end = QEMU_ALIGN_UP(offset_end, BDRV_SECTOR_SIZE);
+
+    blk_pwrite(s->blk, offset, s->storage + offset,
+               offset_end - offset, 0);
+}
+
+static void pnv_pnor_write(void *opaque, hwaddr addr, uint64_t data,
+                           unsigned size)
+{
+    PnvPnor *s = PNV_PNOR(opaque);
+    int i;
+
+    for (i = 0; i < size; i++) {
+        s->storage[addr + i] = (data >> (8 * (size - i - 1))) & 0xFF;
+    }
+    pnv_pnor_update(s, addr, size);
+}
+
+/*
+ * TODO: Check endianness: skiboot is BIG, Aspeed AHB is LITTLE, flash
+ * is BIG.
+ */
+static const MemoryRegionOps pnv_pnor_ops = {
+    .read = pnv_pnor_read,
+    .write = pnv_pnor_write,
+    .endianness = DEVICE_BIG_ENDIAN,
+    .valid = {
+        .min_access_size = 1,
+        .max_access_size = 4,
+    },
+};
+
+static void pnv_pnor_realize(DeviceState *dev, Error **errp)
+{
+    PnvPnor *s = PNV_PNOR(dev);
+    int ret;
+
+    if (s->blk) {
+        uint64_t perm = BLK_PERM_CONSISTENT_READ |
+                        (blk_is_read_only(s->blk) ? 0 : BLK_PERM_WRITE);
+        ret = blk_set_perm(s->blk, perm, BLK_PERM_ALL, errp);
+        if (ret < 0) {
+            return;
+        }
+
+        s->size = blk_getlength(s->blk);
+        if (s->size <= 0) {
+            error_setg(errp, "failed to get flash size");
+            return;
+        }
+
+        s->storage = blk_blockalign(s->blk, s->size);
+
+        if (blk_pread(s->blk, 0, s->storage, s->size) != s->size) {
+            error_setg(errp, "failed to read the initial flash content");
+            return;
+        }
+    } else {
+        s->storage = blk_blockalign(NULL, s->size);
+        memset(s->storage, 0xFF, s->size);
+    }
+
+    memory_region_init_io(&s->mmio, OBJECT(s), &pnv_pnor_ops, s,
+                          TYPE_PNV_PNOR, s->size);
+}
+
+static Property pnv_pnor_properties[] = {
+    DEFINE_PROP_UINT32("size", PnvPnor, size, 128 << 20),
+    DEFINE_PROP_DRIVE("drive", PnvPnor, blk),
+    DEFINE_PROP_END_OF_LIST(),
+};
+
+static void pnv_pnor_class_init(ObjectClass *klass, void *data)
+{
+    DeviceClass *dc = DEVICE_CLASS(klass);
+
+    dc->realize = pnv_pnor_realize;
+    dc->props = pnv_pnor_properties;
+}
+
+static const TypeInfo pnv_pnor_info = {
+    .name          = TYPE_PNV_PNOR,
+    .parent        = TYPE_SYS_BUS_DEVICE,
+    .instance_size = sizeof(PnvPnor),
+    .class_init    = pnv_pnor_class_init,
+};
+
+static void pnv_pnor_register_types(void)
+{
+    type_register_static(&pnv_pnor_info);
+}
+
+type_init(pnv_pnor_register_types)
diff --git a/hw/ppc/pnv_psi.c b/hw/ppc/pnv_psi.c
index 68d0dfa..75e20d9 100644
--- a/hw/ppc/pnv_psi.c
+++ b/hw/ppc/pnv_psi.c
@@ -497,8 +497,7 @@ static void pnv_psi_power8_realize(DeviceState *dev, Error **errp)
     }
 
     /* Create PSI interrupt control source */
-    object_property_add_const_link(OBJECT(ics), ICS_PROP_XICS, obj,
-                                   &error_abort);
+    object_property_set_link(OBJECT(ics), obj, ICS_PROP_XICS, &error_abort);
     object_property_set_int(OBJECT(ics), PSI_NUM_INTERRUPTS, "nr-irqs", &err);
     if (err) {
         error_propagate(errp, err);
@@ -537,9 +536,6 @@ static void pnv_psi_power8_realize(DeviceState *dev, Error **errp)
     qemu_register_reset(pnv_psi_reset, dev);
 }
 
-static const char compat_p8[] = "ibm,power8-psihb-x\0ibm,psihb-x";
-static const char compat_p9[] = "ibm,power9-psihb-x\0ibm,psihb-x";
-
 static int pnv_psi_dt_xscom(PnvXScomInterface *dev, void *fdt, int xscom_offset)
 {
     PnvPsiClass *ppc = PNV_PSI_GET_CLASS(dev);
@@ -558,13 +554,8 @@ static int pnv_psi_dt_xscom(PnvXScomInterface *dev, void *fdt, int xscom_offset)
     _FDT(fdt_setprop(fdt, offset, "reg", reg, sizeof(reg)));
     _FDT(fdt_setprop_cell(fdt, offset, "#address-cells", 2));
     _FDT(fdt_setprop_cell(fdt, offset, "#size-cells", 1));
-    if (ppc->chip_type == PNV_CHIP_POWER9) {
-        _FDT(fdt_setprop(fdt, offset, "compatible", compat_p9,
-                         sizeof(compat_p9)));
-    } else {
-        _FDT(fdt_setprop(fdt, offset, "compatible", compat_p8,
-                         sizeof(compat_p8)));
-    }
+    _FDT(fdt_setprop(fdt, offset, "compatible", ppc->compat,
+                     ppc->compat_size));
     return 0;
 }
 
@@ -578,15 +569,17 @@ static void pnv_psi_power8_class_init(ObjectClass *klass, void *data)
 {
     DeviceClass *dc = DEVICE_CLASS(klass);
     PnvPsiClass *ppc = PNV_PSI_CLASS(klass);
+    static const char compat[] = "ibm,power8-psihb-x\0ibm,psihb-x";
 
     dc->desc    = "PowerNV PSI Controller POWER8";
     dc->realize = pnv_psi_power8_realize;
 
-    ppc->chip_type =  PNV_CHIP_POWER8;
     ppc->xscom_pcba = PNV_XSCOM_PSIHB_BASE;
     ppc->xscom_size = PNV_XSCOM_PSIHB_SIZE;
     ppc->bar_mask   = PSIHB_BAR_MASK;
     ppc->irq_set    = pnv_psi_power8_irq_set;
+    ppc->compat     = compat;
+    ppc->compat_size = sizeof(compat);
 }
 
 static const TypeInfo pnv_psi_power8_info = {
@@ -609,9 +602,12 @@ static const TypeInfo pnv_psi_power8_info = {
 #define   PSIHB9_IRQ_METHOD             PPC_BIT(0)
 #define   PSIHB9_IRQ_RESET              PPC_BIT(1)
 #define PSIHB9_ESB_CI_BASE              0x60
-#define   PSIHB9_ESB_CI_VALID           1
+#define   PSIHB9_ESB_CI_64K             PPC_BIT(1)
+#define   PSIHB9_ESB_CI_ADDR_MASK       PPC_BITMASK(8, 47)
+#define   PSIHB9_ESB_CI_VALID           PPC_BIT(63)
 #define PSIHB9_ESB_NOTIF_ADDR           0x68
-#define   PSIHB9_ESB_NOTIF_VALID        1
+#define   PSIHB9_ESB_NOTIF_ADDR_MASK    PPC_BITMASK(8, 60)
+#define   PSIHB9_ESB_NOTIF_VALID        PPC_BIT(63)
 #define PSIHB9_IVT_OFFSET               0x70
 #define   PSIHB9_IVT_OFF_SHIFT          32
 
@@ -851,8 +847,7 @@ static void pnv_psi_power9_realize(DeviceState *dev, Error **errp)
                             &error_fatal);
     object_property_set_int(OBJECT(xsrc), PSIHB9_NUM_IRQS, "nr-irqs",
                             &error_fatal);
-    object_property_add_const_link(OBJECT(xsrc), "xive", OBJECT(psi),
-                                   &error_fatal);
+    object_property_set_link(OBJECT(xsrc), OBJECT(psi), "xive", &error_abort);
     object_property_set_bool(OBJECT(xsrc), true, "realized", &local_err);
     if (local_err) {
         error_propagate(errp, local_err);
@@ -883,15 +878,17 @@ static void pnv_psi_power9_class_init(ObjectClass *klass, void *data)
     DeviceClass *dc = DEVICE_CLASS(klass);
     PnvPsiClass *ppc = PNV_PSI_CLASS(klass);
     XiveNotifierClass *xfc = XIVE_NOTIFIER_CLASS(klass);
+    static const char compat[] = "ibm,power9-psihb-x\0ibm,psihb-x";
 
     dc->desc    = "PowerNV PSI Controller POWER9";
     dc->realize = pnv_psi_power9_realize;
 
-    ppc->chip_type  = PNV_CHIP_POWER9;
     ppc->xscom_pcba = PNV9_XSCOM_PSIHB_BASE;
     ppc->xscom_size = PNV9_XSCOM_PSIHB_SIZE;
     ppc->bar_mask   = PSIHB9_BAR_MASK;
     ppc->irq_set    = pnv_psi_power9_irq_set;
+    ppc->compat     = compat;
+    ppc->compat_size = sizeof(compat);
 
     xfc->notify      = pnv_psi_notify;
 }
@@ -908,6 +905,26 @@ static const TypeInfo pnv_psi_power9_info = {
     },
 };
 
+static void pnv_psi_power10_class_init(ObjectClass *klass, void *data)
+{
+    DeviceClass *dc = DEVICE_CLASS(klass);
+    PnvPsiClass *ppc = PNV_PSI_CLASS(klass);
+    static const char compat[] = "ibm,power10-psihb-x\0ibm,psihb-x";
+
+    dc->desc    = "PowerNV PSI Controller POWER10";
+
+    ppc->xscom_pcba = PNV10_XSCOM_PSIHB_BASE;
+    ppc->xscom_size = PNV10_XSCOM_PSIHB_SIZE;
+    ppc->compat     = compat;
+    ppc->compat_size = sizeof(compat);
+}
+
+static const TypeInfo pnv_psi_power10_info = {
+    .name          = TYPE_PNV10_PSI,
+    .parent        = TYPE_PNV9_PSI,
+    .class_init    = pnv_psi_power10_class_init,
+};
+
 static void pnv_psi_class_init(ObjectClass *klass, void *data)
 {
     DeviceClass *dc = DEVICE_CLASS(klass);
@@ -937,6 +954,7 @@ static void pnv_psi_register_types(void)
     type_register_static(&pnv_psi_info);
     type_register_static(&pnv_psi_power8_info);
     type_register_static(&pnv_psi_power9_info);
+    type_register_static(&pnv_psi_power10_info);
 }
 
 type_init(pnv_psi_register_types);
diff --git a/hw/ppc/pnv_xscom.c b/hw/ppc/pnv_xscom.c
index f01d788..b681c72 100644
--- a/hw/ppc/pnv_xscom.c
+++ b/hw/ppc/pnv_xscom.c
@@ -36,16 +36,6 @@
 #define PRD_P9_IPOLL_REG_MASK           0x000F0033
 #define PRD_P9_IPOLL_REG_STATUS         0x000F0034
 
-/* PBA BARs */
-#define P8_PBA_BAR0                     0x2013f00
-#define P8_PBA_BAR2                     0x2013f02
-#define P8_PBA_BARMASK0                 0x2013f04
-#define P8_PBA_BARMASK2                 0x2013f06
-#define P9_PBA_BAR0                     0x5012b00
-#define P9_PBA_BAR2                     0x5012b02
-#define P9_PBA_BARMASK0                 0x5012b04
-#define P9_PBA_BARMASK2                 0x5012b06
-
 static void xscom_complete(CPUState *cs, uint64_t hmer_bits)
 {
     /*
@@ -67,13 +57,7 @@ static void xscom_complete(CPUState *cs, uint64_t hmer_bits)
 
 static uint32_t pnv_xscom_pcba(PnvChip *chip, uint64_t addr)
 {
-    addr &= (PNV_XSCOM_SIZE - 1);
-
-    if (pnv_chip_is_power9(chip)) {
-        return addr >> 3;
-    } else {
-        return ((addr >> 4) & ~0xfull) | ((addr >> 3) & 0xf);
-    }
+    return PNV_CHIP_GET_CLASS(chip)->xscom_pcba(chip, addr);
 }
 
 static uint64_t xscom_read_default(PnvChip *chip, uint32_t pcba)
@@ -84,26 +68,6 @@ static uint64_t xscom_read_default(PnvChip *chip, uint32_t pcba)
     case 0x18002:       /* ECID2 */
         return 0;
 
-    case P9_PBA_BAR0:
-        return PNV9_HOMER_BASE(chip);
-    case P8_PBA_BAR0:
-        return PNV_HOMER_BASE(chip);
-
-    case P9_PBA_BARMASK0: /* P9 homer region size */
-        return PNV9_HOMER_SIZE;
-    case P8_PBA_BARMASK0: /* P8 homer region size */
-        return PNV_HOMER_SIZE;
-
-    case P9_PBA_BAR2: /* P9 occ common area */
-        return PNV9_OCC_COMMON_AREA(chip);
-    case P8_PBA_BAR2: /* P8 occ common area */
-        return PNV_OCC_COMMON_AREA(chip);
-
-    case P9_PBA_BARMASK2: /* P9 occ common area size */
-        return PNV9_OCC_COMMON_AREA_SIZE;
-    case P8_PBA_BARMASK2: /* P8 occ common area size */
-        return PNV_OCC_COMMON_AREA_SIZE;
-
     case 0x1010c00:     /* PIBAM FIR */
     case 0x1010c03:     /* PIBAM FIR MASK */
 
@@ -124,9 +88,7 @@ static uint64_t xscom_read_default(PnvChip *chip, uint32_t pcba)
     case 0x202000f:     /* ADU stuff, receive status register*/
         return 0;
     case 0x2013f01:     /* PBA stuff */
-    case 0x2013f03:     /* PBA stuff */
     case 0x2013f05:     /* PBA stuff */
-    case 0x2013f07:     /* PBA stuff */
         return 0;
     case 0x2013028:     /* CAPP stuff */
     case 0x201302a:     /* CAPP stuff */
@@ -298,31 +260,25 @@ static int xscom_dt_child(Object *child, void *opaque)
         PnvXScomInterface *xd = PNV_XSCOM_INTERFACE(child);
         PnvXScomInterfaceClass *xc = PNV_XSCOM_INTERFACE_GET_CLASS(xd);
 
-        if (xc->dt_xscom) {
+        /*
+         * Only "realized" devices should be configured in the DT
+         */
+        if (xc->dt_xscom && DEVICE(child)->realized) {
             _FDT((xc->dt_xscom(xd, args->fdt, args->xscom_offset)));
         }
     }
     return 0;
 }
 
-static const char compat_p8[] = "ibm,power8-xscom\0ibm,xscom";
-static const char compat_p9[] = "ibm,power9-xscom\0ibm,xscom";
-
-int pnv_dt_xscom(PnvChip *chip, void *fdt, int root_offset)
+int pnv_dt_xscom(PnvChip *chip, void *fdt, int root_offset,
+                 uint64_t xscom_base, uint64_t xscom_size,
+                 const char *compat, int compat_size)
 {
-    uint64_t reg[2];
+    uint64_t reg[] = { xscom_base, xscom_size };
     int xscom_offset;
     ForeachPopulateArgs args;
     char *name;
 
-    if (pnv_chip_is_power9(chip)) {
-        reg[0] = cpu_to_be64(PNV9_XSCOM_BASE(chip));
-        reg[1] = cpu_to_be64(PNV9_XSCOM_SIZE);
-    } else {
-        reg[0] = cpu_to_be64(PNV_XSCOM_BASE(chip));
-        reg[1] = cpu_to_be64(PNV_XSCOM_SIZE);
-    }
-
     name = g_strdup_printf("xscom@%" PRIx64, be64_to_cpu(reg[0]));
     xscom_offset = fdt_add_subnode(fdt, root_offset, name);
     _FDT(xscom_offset);
@@ -331,21 +287,18 @@ int pnv_dt_xscom(PnvChip *chip, void *fdt, int root_offset)
     _FDT((fdt_setprop_cell(fdt, xscom_offset, "#address-cells", 1)));
     _FDT((fdt_setprop_cell(fdt, xscom_offset, "#size-cells", 1)));
     _FDT((fdt_setprop(fdt, xscom_offset, "reg", reg, sizeof(reg))));
-
-    if (pnv_chip_is_power9(chip)) {
-        _FDT((fdt_setprop(fdt, xscom_offset, "compatible", compat_p9,
-                          sizeof(compat_p9))));
-    } else {
-        _FDT((fdt_setprop(fdt, xscom_offset, "compatible", compat_p8,
-                          sizeof(compat_p8))));
-    }
-
+    _FDT((fdt_setprop(fdt, xscom_offset, "compatible", compat, compat_size)));
     _FDT((fdt_setprop(fdt, xscom_offset, "scom-controller", NULL, 0)));
 
     args.fdt = fdt;
     args.xscom_offset = xscom_offset;
 
-    object_child_foreach(OBJECT(chip), xscom_dt_child, &args);
+    /*
+     * Loop on the whole object hierarchy to catch all
+     * PnvXScomInterface objects which can lie a bit deeper than the
+     * first layer.
+     */
+    object_child_foreach_recursive(OBJECT(chip), xscom_dt_child, &args);
     return 0;
 }
 
diff --git a/hw/ppc/ppc.c b/hw/ppc/ppc.c
index 52a18eb..4c5fa29 100644
--- a/hw/ppc/ppc.c
+++ b/hw/ppc/ppc.c
@@ -275,10 +275,9 @@ void ppc970_irq_init(PowerPCCPU *cpu)
 static void power7_set_irq(void *opaque, int pin, int level)
 {
     PowerPCCPU *cpu = opaque;
-    CPUPPCState *env = &cpu->env;
 
     LOG_IRQ("%s: env %p pin %d level %d\n", __func__,
-                env, pin, level);
+            &cpu->env, pin, level);
 
     switch (pin) {
     case POWER7_INPUT_INT:
@@ -292,11 +291,6 @@ static void power7_set_irq(void *opaque, int pin, int level)
         LOG_IRQ("%s: unknown IRQ pin %d\n", __func__, pin);
         return;
     }
-    if (level) {
-        env->irq_input_state |= 1 << pin;
-    } else {
-        env->irq_input_state &= ~(1 << pin);
-    }
 }
 
 void ppcPOWER7_irq_init(PowerPCCPU *cpu)
@@ -311,10 +305,9 @@ void ppcPOWER7_irq_init(PowerPCCPU *cpu)
 static void power9_set_irq(void *opaque, int pin, int level)
 {
     PowerPCCPU *cpu = opaque;
-    CPUPPCState *env = &cpu->env;
 
     LOG_IRQ("%s: env %p pin %d level %d\n", __func__,
-                env, pin, level);
+            &cpu->env, pin, level);
 
     switch (pin) {
     case POWER9_INPUT_INT:
@@ -334,11 +327,6 @@ static void power9_set_irq(void *opaque, int pin, int level)
         LOG_IRQ("%s: unknown IRQ pin %d\n", __func__, pin);
         return;
     }
-    if (level) {
-        env->irq_input_state |= 1 << pin;
-    } else {
-        env->irq_input_state &= ~(1 << pin);
-    }
 }
 
 void ppcPOWER9_irq_init(PowerPCCPU *cpu)
@@ -694,6 +682,35 @@ void cpu_ppc_store_atbu (CPUPPCState *env, uint32_t value)
                      &tb_env->atb_offset, ((uint64_t)value << 32) | tb);
 }
 
+uint64_t cpu_ppc_load_vtb(CPUPPCState *env)
+{
+    ppc_tb_t *tb_env = env->tb_env;
+
+    return cpu_ppc_get_tb(tb_env, qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL),
+                          tb_env->vtb_offset);
+}
+
+void cpu_ppc_store_vtb(CPUPPCState *env, uint64_t value)
+{
+    ppc_tb_t *tb_env = env->tb_env;
+
+    cpu_ppc_store_tb(tb_env, qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL),
+                     &tb_env->vtb_offset, value);
+}
+
+void cpu_ppc_store_tbu40(CPUPPCState *env, uint64_t value)
+{
+    ppc_tb_t *tb_env = env->tb_env;
+    uint64_t tb;
+
+    tb = cpu_ppc_get_tb(tb_env, qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL),
+                        tb_env->tb_offset);
+    tb &= 0xFFFFFFUL;
+    tb |= (value & ~0xFFFFFFUL);
+    cpu_ppc_store_tb(tb_env, qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL),
+                     &tb_env->tb_offset, tb);
+}
+
 static void cpu_ppc_tb_stop (CPUPPCState *env)
 {
     ppc_tb_t *tb_env = env->tb_env;
@@ -805,12 +822,9 @@ target_ulong cpu_ppc_load_hdecr(CPUPPCState *env)
 uint64_t cpu_ppc_load_purr (CPUPPCState *env)
 {
     ppc_tb_t *tb_env = env->tb_env;
-    uint64_t diff;
-
-    diff = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) - tb_env->purr_start;
 
-    return tb_env->purr_load +
-        muldiv64(diff, tb_env->tb_freq, NANOSECONDS_PER_SECOND);
+    return cpu_ppc_get_tb(tb_env, qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL),
+                          tb_env->purr_offset);
 }
 
 /* When decrementer expires,
@@ -969,12 +983,12 @@ static void cpu_ppc_hdecr_cb(void *opaque)
     cpu_ppc_hdecr_excp(cpu);
 }
 
-static void cpu_ppc_store_purr(PowerPCCPU *cpu, uint64_t value)
+void cpu_ppc_store_purr(CPUPPCState *env, uint64_t value)
 {
-    ppc_tb_t *tb_env = cpu->env.tb_env;
+    ppc_tb_t *tb_env = env->tb_env;
 
-    tb_env->purr_load = value;
-    tb_env->purr_start = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL);
+    cpu_ppc_store_tb(tb_env, qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL),
+                     &tb_env->purr_offset, value);
 }
 
 static void cpu_ppc_set_tb_clk (void *opaque, uint32_t freq)
@@ -991,7 +1005,7 @@ static void cpu_ppc_set_tb_clk (void *opaque, uint32_t freq)
      */
     _cpu_ppc_store_decr(cpu, 0xFFFFFFFF, 0xFFFFFFFF, 32);
     _cpu_ppc_store_hdecr(cpu, 0xFFFFFFFF, 0xFFFFFFFF, 32);
-    cpu_ppc_store_purr(cpu, 0x0000000000000000ULL);
+    cpu_ppc_store_purr(env, 0x0000000000000000ULL);
 }
 
 static void timebase_save(PPCTimebase *tb)
@@ -1495,18 +1509,31 @@ void PPC_debug_write (void *opaque, uint32_t addr, uint32_t val)
     }
 }
 
+int ppc_cpu_pir(PowerPCCPU *cpu)
+{
+    CPUPPCState *env = &cpu->env;
+    return env->spr_cb[SPR_PIR].default_value;
+}
+
 PowerPCCPU *ppc_get_vcpu_by_pir(int pir)
 {
     CPUState *cs;
 
     CPU_FOREACH(cs) {
         PowerPCCPU *cpu = POWERPC_CPU(cs);
-        CPUPPCState *env = &cpu->env;
 
-        if (env->spr_cb[SPR_PIR].default_value == pir) {
+        if (ppc_cpu_pir(cpu) == pir) {
             return cpu;
         }
     }
 
     return NULL;
 }
+
+void ppc_irq_reset(PowerPCCPU *cpu)
+{
+    CPUPPCState *env = &cpu->env;
+
+    env->irq_input_state = 0;
+    kvmppc_set_interrupt(cpu, PPC_INTERRUPT_EXT, 0);
+}
diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c
index 3ae7db1..f11422f 100644
--- a/hw/ppc/spapr.c
+++ b/hw/ppc/spapr.c
@@ -76,7 +76,6 @@
 #include "hw/nmi.h"
 #include "hw/intc/intc.h"
 
-#include "qemu/cutils.h"
 #include "hw/ppc/spapr_cpu_core.h"
 #include "hw/mem/memory-device.h"
 #include "hw/ppc/spapr_tpm_proxy.h"
@@ -897,69 +896,6 @@ out:
     return ret;
 }
 
-static bool spapr_hotplugged_dev_before_cas(void)
-{
-    Object *drc_container, *obj;
-    ObjectProperty *prop;
-    ObjectPropertyIterator iter;
-
-    drc_container = container_get(object_get_root(), "/dr-connector");
-    object_property_iter_init(&iter, drc_container);
-    while ((prop = object_property_iter_next(&iter))) {
-        if (!strstart(prop->type, "link<", NULL)) {
-            continue;
-        }
-        obj = object_property_get_link(drc_container, prop->name, NULL);
-        if (spapr_drc_needed(obj)) {
-            return true;
-        }
-    }
-    return false;
-}
-
-static void *spapr_build_fdt(SpaprMachineState *spapr, bool reset);
-
-int spapr_h_cas_compose_response(SpaprMachineState *spapr,
-                                 target_ulong addr, target_ulong size,
-                                 SpaprOptionVector *ov5_updates)
-{
-    void *fdt;
-    SpaprDeviceTreeUpdateHeader hdr = { .version_id = 1 };
-
-    if (spapr_hotplugged_dev_before_cas()) {
-        return 1;
-    }
-
-    if (size < sizeof(hdr) || size > FW_MAX_SIZE) {
-        error_report("SLOF provided an unexpected CAS buffer size "
-                     TARGET_FMT_lu " (min: %zu, max: %u)",
-                     size, sizeof(hdr), FW_MAX_SIZE);
-        exit(EXIT_FAILURE);
-    }
-
-    size -= sizeof(hdr);
-
-    fdt = spapr_build_fdt(spapr, false);
-    _FDT((fdt_pack(fdt)));
-
-    if (fdt_totalsize(fdt) + sizeof(hdr) > size) {
-        g_free(fdt);
-        trace_spapr_cas_failed(size);
-        return -1;
-    }
-
-    cpu_physical_memory_write(addr, &hdr, sizeof(hdr));
-    cpu_physical_memory_write(addr + sizeof(hdr), fdt, fdt_totalsize(fdt));
-    trace_spapr_cas_continue(fdt_totalsize(fdt) + sizeof(hdr));
-
-    g_free(spapr->fdt_blob);
-    spapr->fdt_size = fdt_totalsize(fdt);
-    spapr->fdt_initial_size = spapr->fdt_size;
-    spapr->fdt_blob = fdt;
-
-    return 0;
-}
-
 static void spapr_dt_rtas(SpaprMachineState *spapr, void *fdt)
 {
     MachineState *ms = MACHINE(spapr);
@@ -1197,7 +1133,7 @@ static void spapr_dt_hypervisor(SpaprMachineState *spapr, void *fdt)
     }
 }
 
-static void *spapr_build_fdt(SpaprMachineState *spapr, bool reset)
+void *spapr_build_fdt(SpaprMachineState *spapr, bool reset, size_t space)
 {
     MachineState *machine = MACHINE(spapr);
     MachineClass *mc = MACHINE_GET_CLASS(machine);
@@ -1207,8 +1143,8 @@ static void *spapr_build_fdt(SpaprMachineState *spapr, bool reset)
     SpaprPhbState *phb;
     char *buf;
 
-    fdt = g_malloc0(FDT_MAX_SIZE);
-    _FDT((fdt_create_empty_tree(fdt, FDT_MAX_SIZE)));
+    fdt = g_malloc0(space);
+    _FDT((fdt_create_empty_tree(fdt, space)));
 
     /* Root node */
     _FDT(fdt_setprop_string(fdt, 0, "device_type", "chrp"));
@@ -1723,19 +1659,13 @@ static void spapr_machine_reset(MachineState *machine)
      */
     fdt_addr = MIN(spapr->rma_size, RTAS_MAX_ADDR) - FDT_MAX_SIZE;
 
-    fdt = spapr_build_fdt(spapr, true);
+    fdt = spapr_build_fdt(spapr, true, FDT_MAX_SIZE);
 
     rc = fdt_pack(fdt);
 
     /* Should only fail if we've built a corrupted tree */
     assert(rc == 0);
 
-    if (fdt_totalsize(fdt) > FDT_MAX_SIZE) {
-        error_report("FDT too big ! 0x%x bytes (max is 0x%x)",
-                     fdt_totalsize(fdt), FDT_MAX_SIZE);
-        exit(1);
-    }
-
     /* Load the fdt */
     qemu_fdt_dumpdtb(fdt, fdt_totalsize(fdt));
     cpu_physical_memory_write(fdt_addr, fdt, fdt_totalsize(fdt));
@@ -1910,8 +1840,6 @@ static bool spapr_ov5_cas_needed(void *opaque)
 {
     SpaprMachineState *spapr = opaque;
     SpaprOptionVector *ov5_mask = spapr_ovec_new();
-    SpaprOptionVector *ov5_legacy = spapr_ovec_new();
-    SpaprOptionVector *ov5_removed = spapr_ovec_new();
     bool cas_needed;
 
     /* Prior to the introduction of SpaprOptionVector, we had two option
@@ -1943,17 +1871,11 @@ static bool spapr_ov5_cas_needed(void *opaque)
     spapr_ovec_set(ov5_mask, OV5_DRCONF_MEMORY);
     spapr_ovec_set(ov5_mask, OV5_DRMEM_V2);
 
-    /* spapr_ovec_diff returns true if bits were removed. we avoid using
-     * the mask itself since in the future it's possible "legacy" bits may be
-     * removed via machine options, which could generate a false positive
-     * that breaks migration.
-     */
-    spapr_ovec_intersect(ov5_legacy, spapr->ov5, ov5_mask);
-    cas_needed = spapr_ovec_diff(ov5_removed, spapr->ov5, ov5_legacy);
+    /* We need extra information if we have any bits outside the mask
+     * defined above */
+    cas_needed = !spapr_ovec_subset(spapr->ov5, ov5_mask);
 
     spapr_ovec_cleanup(ov5_mask);
-    spapr_ovec_cleanup(ov5_legacy);
-    spapr_ovec_cleanup(ov5_removed);
 
     return cas_needed;
 }
@@ -2564,7 +2486,7 @@ static void spapr_set_vsmt_mode(SpaprMachineState *spapr, Error **errp)
                                       " requires the use of VSMT mode %d.\n",
                                       smp_threads, kvm_smt, spapr->vsmt);
                 }
-                kvmppc_hint_smt_possible(&local_err);
+                kvmppc_error_append_smt_possible_hint(&local_err);
                 goto out;
             }
         }
@@ -4275,6 +4197,42 @@ static void spapr_pic_print_info(InterruptStatsProvider *obj,
                    kvm_irqchip_in_kernel() ? "in-kernel" : "emulated");
 }
 
+static int spapr_match_nvt(XiveFabric *xfb, uint8_t format,
+                           uint8_t nvt_blk, uint32_t nvt_idx,
+                           bool cam_ignore, uint8_t priority,
+                           uint32_t logic_serv, XiveTCTXMatch *match)
+{
+    SpaprMachineState *spapr = SPAPR_MACHINE(xfb);
+    XivePresenter *xptr = XIVE_PRESENTER(spapr->xive);
+    XivePresenterClass *xpc = XIVE_PRESENTER_GET_CLASS(xptr);
+    int count;
+
+    /* This is a XIVE only operation */
+    assert(spapr->active_intc == SPAPR_INTC(spapr->xive));
+
+    count = xpc->match_nvt(xptr, format, nvt_blk, nvt_idx, cam_ignore,
+                           priority, logic_serv, match);
+    if (count < 0) {
+        return count;
+    }
+
+    /*
+     * When we implement the save and restore of the thread interrupt
+     * contexts in the enter/exit CPU handlers of the machine and the
+     * escalations in QEMU, we should be able to handle non dispatched
+     * vCPUs.
+     *
+     * Until this is done, the sPAPR machine should find at least one
+     * matching context always.
+     */
+    if (count == 0) {
+        qemu_log_mask(LOG_GUEST_ERROR, "XIVE: NVT %x/%x is not dispatched\n",
+                      nvt_blk, nvt_idx);
+    }
+
+    return count;
+}
+
 int spapr_get_vcpu_id(PowerPCCPU *cpu)
 {
     return cpu->vcpu_id;
@@ -4371,6 +4329,7 @@ static void spapr_machine_class_init(ObjectClass *oc, void *data)
     PPCVirtualHypervisorClass *vhc = PPC_VIRTUAL_HYPERVISOR_CLASS(oc);
     XICSFabricClass *xic = XICS_FABRIC_CLASS(oc);
     InterruptStatsProviderClass *ispc = INTERRUPT_STATS_PROVIDER_CLASS(oc);
+    XiveFabricClass *xfc = XIVE_FABRIC_CLASS(oc);
 
     mc->desc = "pSeries Logical Partition (PAPR compliant)";
     mc->ignore_boot_device_suffixes = true;
@@ -4447,6 +4406,7 @@ static void spapr_machine_class_init(ObjectClass *oc, void *data)
     smc->linux_pci_probe = true;
     smc->smp_threads_vsmt = true;
     smc->nr_xirqs = SPAPR_NR_XIRQS;
+    xfc->match_nvt = spapr_match_nvt;
 }
 
 static const TypeInfo spapr_machine_info = {
@@ -4465,6 +4425,7 @@ static const TypeInfo spapr_machine_info = {
         { TYPE_PPC_VIRTUAL_HYPERVISOR },
         { TYPE_XICS_FABRIC },
         { TYPE_INTERRUPT_STATS_PROVIDER },
+        { TYPE_XIVE_FABRIC },
         { }
     },
 };
diff --git a/hw/ppc/spapr_hcall.c b/hw/ppc/spapr_hcall.c
index 140f05c..f1799b1 100644
--- a/hw/ppc/spapr_hcall.c
+++ b/hw/ppc/spapr_hcall.c
@@ -1,4 +1,5 @@
 #include "qemu/osdep.h"
+#include "qemu/cutils.h"
 #include "qapi/error.h"
 #include "sysemu/hw_accel.h"
 #include "sysemu/runstate.h"
@@ -15,6 +16,7 @@
 #include "cpu-models.h"
 #include "trace.h"
 #include "kvm_ppc.h"
+#include "hw/ppc/fdt.h"
 #include "hw/ppc/spapr_ovec.h"
 #include "mmu-book3s-v3.h"
 #include "hw/mem/memory-device.h"
@@ -1638,6 +1640,26 @@ static uint32_t cas_check_pvr(SpaprMachineState *spapr, PowerPCCPU *cpu,
     return best_compat;
 }
 
+static bool spapr_hotplugged_dev_before_cas(void)
+{
+    Object *drc_container, *obj;
+    ObjectProperty *prop;
+    ObjectPropertyIterator iter;
+
+    drc_container = container_get(object_get_root(), "/dr-connector");
+    object_property_iter_init(&iter, drc_container);
+    while ((prop = object_property_iter_next(&iter))) {
+        if (!strstart(prop->type, "link<", NULL)) {
+            continue;
+        }
+        obj = object_property_get_link(drc_container, prop->name, NULL);
+        if (spapr_drc_needed(obj)) {
+            return true;
+        }
+    }
+    return false;
+}
+
 static target_ulong h_client_architecture_support(PowerPCCPU *cpu,
                                                   SpaprMachineState *spapr,
                                                   target_ulong opcode,
@@ -1645,9 +1667,11 @@ static target_ulong h_client_architecture_support(PowerPCCPU *cpu,
 {
     /* Working address in data buffer */
     target_ulong addr = ppc64_phys_to_real(args[0]);
+    target_ulong fdt_buf = args[1];
+    target_ulong fdt_bufsize = args[2];
     target_ulong ov_table;
     uint32_t cas_pvr;
-    SpaprOptionVector *ov1_guest, *ov5_guest, *ov5_cas_old, *ov5_updates;
+    SpaprOptionVector *ov1_guest, *ov5_guest, *ov5_cas_old;
     bool guest_radix;
     Error *local_err = NULL;
     bool raw_mode_supported = false;
@@ -1746,9 +1770,7 @@ static target_ulong h_client_architecture_support(PowerPCCPU *cpu,
     /* capabilities that have been added since CAS-generated guest reset.
      * if capabilities have since been removed, generate another reset
      */
-    ov5_updates = spapr_ovec_new();
-    spapr->cas_reboot = spapr_ovec_diff(ov5_updates,
-                                        ov5_cas_old, spapr->ov5_cas);
+    spapr->cas_reboot = !spapr_ovec_subset(ov5_cas_old, spapr->ov5_cas);
     spapr_ovec_cleanup(ov5_cas_old);
     /* Now that processing is finished, set the radix/hash bit for the
      * guest if it requested a valid mode; otherwise terminate the boot. */
@@ -1767,21 +1789,10 @@ static target_ulong h_client_architecture_support(PowerPCCPU *cpu,
     }
     spapr->cas_pre_isa3_guest = !spapr_ovec_test(ov1_guest, OV1_PPC_3_00);
     spapr_ovec_cleanup(ov1_guest);
-    if (!spapr->cas_reboot) {
-        /* If spapr_machine_reset() did not set up a HPT but one is necessary
-         * (because the guest isn't going to use radix) then set it up here. */
-        if ((spapr->patb_entry & PATE1_GR) && !guest_radix) {
-            /* legacy hash or new hash: */
-            spapr_setup_hpt_and_vrma(spapr);
-        }
-        spapr->cas_reboot =
-            (spapr_h_cas_compose_response(spapr, args[1], args[2],
-                                          ov5_updates) != 0);
-    }
 
     /*
-     * Ensure the guest asks for an interrupt mode we support; otherwise
-     * terminate the boot.
+     * Ensure the guest asks for an interrupt mode we support;
+     * otherwise terminate the boot.
      */
     if (guest_xive) {
         if (!spapr->irq->xive) {
@@ -1797,17 +1808,44 @@ static target_ulong h_client_architecture_support(PowerPCCPU *cpu,
         }
     }
 
-    /*
-     * Generate a machine reset when we have an update of the
-     * interrupt mode. Only required when the machine supports both
-     * modes.
-     */
-    if (!spapr->cas_reboot) {
-        spapr->cas_reboot = spapr_ovec_test(ov5_updates, OV5_XIVE_EXPLOIT)
-            && spapr->irq->xics && spapr->irq->xive;
+    spapr_irq_update_active_intc(spapr);
+
+    if (spapr_hotplugged_dev_before_cas()) {
+        spapr->cas_reboot = true;
     }
 
-    spapr_ovec_cleanup(ov5_updates);
+    if (!spapr->cas_reboot) {
+        void *fdt;
+        SpaprDeviceTreeUpdateHeader hdr = { .version_id = 1 };
+
+        /* If spapr_machine_reset() did not set up a HPT but one is necessary
+         * (because the guest isn't going to use radix) then set it up here. */
+        if ((spapr->patb_entry & PATE1_GR) && !guest_radix) {
+            /* legacy hash or new hash: */
+            spapr_setup_hpt_and_vrma(spapr);
+        }
+
+        if (fdt_bufsize < sizeof(hdr)) {
+            error_report("SLOF provided insufficient CAS buffer "
+                         TARGET_FMT_lu " (min: %zu)", fdt_bufsize, sizeof(hdr));
+            exit(EXIT_FAILURE);
+        }
+
+        fdt_bufsize -= sizeof(hdr);
+
+        fdt = spapr_build_fdt(spapr, false, fdt_bufsize);
+        _FDT((fdt_pack(fdt)));
+
+        cpu_physical_memory_write(fdt_buf, &hdr, sizeof(hdr));
+        cpu_physical_memory_write(fdt_buf + sizeof(hdr), fdt,
+                                  fdt_totalsize(fdt));
+        trace_spapr_cas_continue(fdt_totalsize(fdt) + sizeof(hdr));
+
+        g_free(spapr->fdt_blob);
+        spapr->fdt_size = fdt_totalsize(fdt);
+        spapr->fdt_initial_size = spapr->fdt_size;
+        spapr->fdt_blob = fdt;
+    }
 
     if (spapr->cas_reboot) {
         qemu_system_reset_request(SHUTDOWN_CAUSE_SUBSYSTEM_RESET);
diff --git a/hw/ppc/spapr_irq.c b/hw/ppc/spapr_irq.c
index d6bb7fd..07e08d6 100644
--- a/hw/ppc/spapr_irq.c
+++ b/hw/ppc/spapr_irq.c
@@ -70,15 +70,16 @@ void spapr_irq_msi_free(SpaprMachineState *spapr, int irq, uint32_t num)
     bitmap_clear(spapr->irq_map, irq - SPAPR_IRQ_MSI, num);
 }
 
-int spapr_irq_init_kvm(int (*fn)(SpaprInterruptController *, Error **),
+int spapr_irq_init_kvm(SpaprInterruptControllerInitKvm fn,
                        SpaprInterruptController *intc,
+                       uint32_t nr_servers,
                        Error **errp)
 {
     MachineState *machine = MACHINE(qdev_get_machine());
     Error *local_err = NULL;
 
     if (kvm_enabled() && machine_kernel_irqchip_allowed(machine)) {
-        if (fn(intc, &local_err) < 0) {
+        if (fn(intc, nr_servers, &local_err) < 0) {
             if (machine_kernel_irqchip_required(machine)) {
                 error_prepend(&local_err,
                               "kernel_irqchip requested but unavailable: ");
@@ -313,25 +314,11 @@ void spapr_irq_init(SpaprMachineState *spapr, Error **errp)
         Object *obj;
 
         obj = object_new(TYPE_ICS_SPAPR);
-        object_property_add_child(OBJECT(spapr), "ics", obj, &local_err);
-        if (local_err) {
-            error_propagate(errp, local_err);
-            return;
-        }
-
-        object_property_add_const_link(obj, ICS_PROP_XICS, OBJECT(spapr),
-                                       &local_err);
-        if (local_err) {
-            error_propagate(errp, local_err);
-            return;
-        }
-
-        object_property_set_int(obj, smc->nr_xirqs, "nr-irqs", &local_err);
-        if (local_err) {
-            error_propagate(errp, local_err);
-            return;
-        }
 
+        object_property_add_child(OBJECT(spapr), "ics", obj, &error_abort);
+        object_property_set_link(obj, OBJECT(spapr), ICS_PROP_XICS,
+                                 &error_abort);
+        object_property_set_int(obj, smc->nr_xirqs, "nr-irqs", &error_abort);
         object_property_set_bool(obj, true, "realized", &local_err);
         if (local_err) {
             error_propagate(errp, local_err);
@@ -495,6 +482,7 @@ static void set_active_intc(SpaprMachineState *spapr,
                             SpaprInterruptController *new_intc)
 {
     SpaprInterruptControllerClass *sicc;
+    uint32_t nr_servers = spapr_max_server_number(spapr);
 
     assert(new_intc);
 
@@ -512,7 +500,7 @@ static void set_active_intc(SpaprMachineState *spapr,
 
     sicc = SPAPR_INTC_GET_CLASS(new_intc);
     if (sicc->activate) {
-        sicc->activate(new_intc, &error_fatal);
+        sicc->activate(new_intc, nr_servers, &error_fatal);
     }
 
     spapr->active_intc = new_intc;
diff --git a/hw/ppc/spapr_ovec.c b/hw/ppc/spapr_ovec.c
index 811fadf..0ff6d1a 100644
--- a/hw/ppc/spapr_ovec.c
+++ b/hw/ppc/spapr_ovec.c
@@ -76,31 +76,21 @@ void spapr_ovec_intersect(SpaprOptionVector *ov,
     bitmap_and(ov->bitmap, ov1->bitmap, ov2->bitmap, OV_MAXBITS);
 }
 
-/* returns true if options bits were removed, false otherwise */
-bool spapr_ovec_diff(SpaprOptionVector *ov,
-                     SpaprOptionVector *ov_old,
-                     SpaprOptionVector *ov_new)
+/* returns true if ov1 has a subset of bits in ov2 */
+bool spapr_ovec_subset(SpaprOptionVector *ov1, SpaprOptionVector *ov2)
 {
-    unsigned long *change_mask = bitmap_new(OV_MAXBITS);
-    unsigned long *removed_bits = bitmap_new(OV_MAXBITS);
-    bool bits_were_removed = false;
+    unsigned long *tmp = bitmap_new(OV_MAXBITS);
+    bool result;
 
-    g_assert(ov);
-    g_assert(ov_old);
-    g_assert(ov_new);
-
-    bitmap_xor(change_mask, ov_old->bitmap, ov_new->bitmap, OV_MAXBITS);
-    bitmap_and(ov->bitmap, ov_new->bitmap, change_mask, OV_MAXBITS);
-    bitmap_and(removed_bits, ov_old->bitmap, change_mask, OV_MAXBITS);
+    g_assert(ov1);
+    g_assert(ov2);
 
-    if (!bitmap_empty(removed_bits, OV_MAXBITS)) {
-        bits_were_removed = true;
-    }
+    bitmap_andnot(tmp, ov1->bitmap, ov2->bitmap, OV_MAXBITS);
+    result = bitmap_empty(tmp, OV_MAXBITS);
 
-    g_free(change_mask);
-    g_free(removed_bits);
+    g_free(tmp);
 
-    return bits_were_removed;
+    return result;
 }
 
 void spapr_ovec_cleanup(SpaprOptionVector *ov)
diff --git a/include/hw/ipmi/ipmi.h b/include/hw/ipmi/ipmi.h
index 6f2413b..8a99d95 100644
--- a/include/hw/ipmi/ipmi.h
+++ b/include/hw/ipmi/ipmi.h
@@ -55,6 +55,7 @@ enum ipmi_op {
 #define IPMI_CC_COMMAND_NOT_SUPPORTED                    0xd5
 
 #define IPMI_NETFN_APP                0x06
+#define IPMI_NETFN_OEM                0x3a
 
 #define IPMI_DEBUG 1
 
@@ -265,4 +266,45 @@ int ipmi_bmc_sdr_find(IPMIBmc *b, uint16_t recid,
                       const struct ipmi_sdr_compact **sdr, uint16_t *nextrec);
 void ipmi_bmc_gen_event(IPMIBmc *b, uint8_t *evt, bool log);
 
+#define TYPE_IPMI_BMC_SIMULATOR "ipmi-bmc-sim"
+#define IPMI_BMC_SIMULATOR(obj) OBJECT_CHECK(IPMIBmcSim, (obj), \
+                                        TYPE_IPMI_BMC_SIMULATOR)
+
+typedef struct IPMIBmcSim IPMIBmcSim;
+
+typedef struct RspBuffer {
+    uint8_t buffer[MAX_IPMI_MSG_SIZE];
+    unsigned int len;
+} RspBuffer;
+
+static inline void rsp_buffer_set_error(RspBuffer *rsp, uint8_t byte)
+{
+    rsp->buffer[2] = byte;
+}
+
+/* Add a byte to the response. */
+static inline void rsp_buffer_push(RspBuffer *rsp, uint8_t byte)
+{
+    if (rsp->len >= sizeof(rsp->buffer)) {
+        rsp_buffer_set_error(rsp, IPMI_CC_REQUEST_DATA_TRUNCATED);
+        return;
+    }
+    rsp->buffer[rsp->len++] = byte;
+}
+
+typedef struct IPMICmdHandler {
+    void (*cmd_handler)(IPMIBmcSim *s,
+                        uint8_t *cmd, unsigned int cmd_len,
+                        RspBuffer *rsp);
+    unsigned int cmd_len_min;
+} IPMICmdHandler;
+
+typedef struct IPMINetfn {
+    unsigned int cmd_nums;
+    const IPMICmdHandler *cmd_handlers;
+} IPMINetfn;
+
+int ipmi_sim_register_netfn(IPMIBmcSim *s, unsigned int netfn,
+                            const IPMINetfn *netfnd);
+
 #endif
diff --git a/include/hw/ppc/pnv.h b/include/hw/ppc/pnv.h
index 0b4c722..f78fd0d 100644
--- a/include/hw/ppc/pnv.h
+++ b/include/hw/ppc/pnv.h
@@ -24,6 +24,7 @@
 #include "hw/sysbus.h"
 #include "hw/ipmi/ipmi.h"
 #include "hw/ppc/pnv_lpc.h"
+#include "hw/ppc/pnv_pnor.h"
 #include "hw/ppc/pnv_psi.h"
 #include "hw/ppc/pnv_occ.h"
 #include "hw/ppc/pnv_homer.h"
@@ -37,13 +38,6 @@
 #define PNV_CHIP_GET_CLASS(obj) \
      OBJECT_GET_CLASS(PnvChipClass, (obj), TYPE_PNV_CHIP)
 
-typedef enum PnvChipType {
-    PNV_CHIP_POWER8E,     /* AKA Murano (default) */
-    PNV_CHIP_POWER8,      /* AKA Venice */
-    PNV_CHIP_POWER8NVL,   /* AKA Naples */
-    PNV_CHIP_POWER9,      /* AKA Nimbus */
-} PnvChipType;
-
 typedef struct PnvChip {
     /*< private >*/
     SysBusDevice parent_obj;
@@ -55,7 +49,7 @@ typedef struct PnvChip {
 
     uint32_t     nr_cores;
     uint64_t     cores_mask;
-    void         *cores;
+    PnvCore      **cores;
 
     MemoryRegion xscom_mmio;
     MemoryRegion xscom;
@@ -98,12 +92,29 @@ typedef struct Pnv9Chip {
     PnvQuad      *quads;
 } Pnv9Chip;
 
+/*
+ * A SMT8 fused core is a pair of SMT4 cores.
+ */
+#define PNV9_PIR2FUSEDCORE(pir) (((pir) >> 3) & 0xf)
+#define PNV9_PIR2CHIP(pir)      (((pir) >> 8) & 0x7f)
+
+#define TYPE_PNV10_CHIP "pnv10-chip"
+#define PNV10_CHIP(obj) OBJECT_CHECK(Pnv10Chip, (obj), TYPE_PNV10_CHIP)
+
+typedef struct Pnv10Chip {
+    /*< private >*/
+    PnvChip      parent_obj;
+
+    /*< public >*/
+    Pnv9Psi      psi;
+    PnvLpcController lpc;
+} Pnv10Chip;
+
 typedef struct PnvChipClass {
     /*< private >*/
     SysBusDeviceClass parent_class;
 
     /*< public >*/
-    PnvChipType  chip_type;
     uint64_t     chip_cfam_id;
     uint64_t     cores_mask;
 
@@ -113,9 +124,12 @@ typedef struct PnvChipClass {
     void (*intc_create)(PnvChip *chip, PowerPCCPU *cpu, Error **errp);
     void (*intc_reset)(PnvChip *chip, PowerPCCPU *cpu);
     void (*intc_destroy)(PnvChip *chip, PowerPCCPU *cpu);
+    void (*intc_print_info)(PnvChip *chip, PowerPCCPU *cpu, Monitor *mon);
     ISABus *(*isa_create)(PnvChip *chip, Error **errp);
     void (*dt_populate)(PnvChip *chip, void *fdt);
     void (*pic_print_info)(PnvChip *chip, Monitor *mon);
+    uint64_t (*xscom_core_base)(PnvChip *chip, uint32_t core_id);
+    uint32_t (*xscom_pcba)(PnvChip *chip, uint64_t addr);
 } PnvChipClass;
 
 #define PNV_CHIP_TYPE_SUFFIX "-" TYPE_PNV_CHIP
@@ -137,6 +151,10 @@ typedef struct PnvChipClass {
 #define PNV_CHIP_POWER9(obj) \
     OBJECT_CHECK(PnvChip, (obj), TYPE_PNV_CHIP_POWER9)
 
+#define TYPE_PNV_CHIP_POWER10 PNV_CHIP_TYPE_NAME("power10_v1.0")
+#define PNV_CHIP_POWER10(obj) \
+    OBJECT_CHECK(PnvChip, (obj), TYPE_PNV_CHIP_POWER10)
+
 /*
  * This generates a HW chip id depending on an index, as found on a
  * two socket system with dual chip modules :
@@ -156,11 +174,30 @@ typedef struct PnvChipClass {
 #define PNV_CHIP_INDEX(chip)                                    \
     (((chip)->chip_id >> 2) * 2 + ((chip)->chip_id & 0x3))
 
+PowerPCCPU *pnv_chip_find_cpu(PnvChip *chip, uint32_t pir);
+
 #define TYPE_PNV_MACHINE       MACHINE_TYPE_NAME("powernv")
 #define PNV_MACHINE(obj) \
     OBJECT_CHECK(PnvMachineState, (obj), TYPE_PNV_MACHINE)
+#define PNV_MACHINE_GET_CLASS(obj) \
+    OBJECT_GET_CLASS(PnvMachineClass, obj, TYPE_PNV_MACHINE)
+#define PNV_MACHINE_CLASS(klass) \
+    OBJECT_CLASS_CHECK(PnvMachineClass, klass, TYPE_PNV_MACHINE)
 
-typedef struct PnvMachineState {
+typedef struct PnvMachineState PnvMachineState;
+
+typedef struct PnvMachineClass {
+    /*< private >*/
+    MachineClass parent_class;
+
+    /*< public >*/
+    const char *compat;
+    int compat_size;
+
+    void (*dt_power_mgt)(PnvMachineState *pnv, void *fdt);
+} PnvMachineClass;
+
+struct PnvMachineState {
     /*< private >*/
     MachineState parent_obj;
 
@@ -175,17 +212,11 @@ typedef struct PnvMachineState {
 
     IPMIBmc      *bmc;
     Notifier     powerdown_notifier;
-} PnvMachineState;
 
-static inline bool pnv_chip_is_power9(const PnvChip *chip)
-{
-    return PNV_CHIP_GET_CLASS(chip)->chip_type == PNV_CHIP_POWER9;
-}
+    PnvPnor      *pnor;
+};
 
-static inline bool pnv_is_power9(PnvMachineState *pnv)
-{
-    return pnv_chip_is_power9(pnv->chips[0]);
-}
+PnvChip *pnv_get_chip(uint32_t chip_id);
 
 #define PNV_FDT_ADDR          0x01000000
 #define PNV_TIMEBASE_FREQ     512000000ULL
@@ -195,6 +226,7 @@ static inline bool pnv_is_power9(PnvMachineState *pnv)
  */
 void pnv_dt_bmc_sensors(IPMIBmc *bmc, void *fdt);
 void pnv_bmc_powerdown(IPMIBmc *bmc);
+IPMIBmc *pnv_bmc_create(void);
 
 /*
  * POWER8 MMIO base addresses
@@ -203,12 +235,12 @@ void pnv_bmc_powerdown(IPMIBmc *bmc);
 #define PNV_XSCOM_BASE(chip)                                            \
     (0x0003fc0000000000ull + ((uint64_t)(chip)->chip_id) * PNV_XSCOM_SIZE)
 
-#define PNV_OCC_COMMON_AREA_SIZE    0x0000000000700000ull
-#define PNV_OCC_COMMON_AREA(chip)                                       \
-    (0x7fff800000ull + ((uint64_t)PNV_CHIP_INDEX(chip) * \
-                         PNV_OCC_COMMON_AREA_SIZE))
+#define PNV_OCC_COMMON_AREA_SIZE    0x0000000000800000ull
+#define PNV_OCC_COMMON_AREA_BASE    0x7fff800000ull
+#define PNV_OCC_SENSOR_BASE(chip)   (PNV_OCC_COMMON_AREA_BASE + \
+    PNV_OCC_SENSOR_DATA_BLOCK_BASE(PNV_CHIP_INDEX(chip)))
 
-#define PNV_HOMER_SIZE              0x0000000000300000ull
+#define PNV_HOMER_SIZE              0x0000000000400000ull
 #define PNV_HOMER_BASE(chip)                                            \
     (0x7ffd800000ull + ((uint64_t)PNV_CHIP_INDEX(chip)) * PNV_HOMER_SIZE)
 
@@ -271,12 +303,31 @@ void pnv_bmc_powerdown(IPMIBmc *bmc);
 #define PNV9_XSCOM_SIZE              0x0000000400000000ull
 #define PNV9_XSCOM_BASE(chip)        PNV9_CHIP_BASE(chip, 0x00603fc00000000ull)
 
-#define PNV9_OCC_COMMON_AREA_SIZE    0x0000000000700000ull
-#define PNV9_OCC_COMMON_AREA(chip)                                      \
-    (0x203fff800000ull + ((uint64_t)PNV_CHIP_INDEX(chip) * \
-                           PNV9_OCC_COMMON_AREA_SIZE))
+#define PNV9_OCC_COMMON_AREA_SIZE    0x0000000000800000ull
+#define PNV9_OCC_COMMON_AREA_BASE    0x203fff800000ull
+#define PNV9_OCC_SENSOR_BASE(chip)   (PNV9_OCC_COMMON_AREA_BASE +       \
+    PNV_OCC_SENSOR_DATA_BLOCK_BASE(PNV_CHIP_INDEX(chip)))
 
-#define PNV9_HOMER_SIZE              0x0000000000300000ull
+#define PNV9_HOMER_SIZE              0x0000000000400000ull
 #define PNV9_HOMER_BASE(chip)                                           \
     (0x203ffd800000ull + ((uint64_t)PNV_CHIP_INDEX(chip)) * PNV9_HOMER_SIZE)
+
+/*
+ * POWER10 MMIO base addresses - 16TB stride per chip
+ */
+#define PNV10_CHIP_BASE(chip, base)   \
+    ((base) + ((uint64_t) (chip)->chip_id << 44))
+
+#define PNV10_XSCOM_SIZE             0x0000000400000000ull
+#define PNV10_XSCOM_BASE(chip)       PNV10_CHIP_BASE(chip, 0x00603fc00000000ull)
+
+#define PNV10_LPCM_SIZE             0x0000000100000000ull
+#define PNV10_LPCM_BASE(chip)       PNV10_CHIP_BASE(chip, 0x0006030000000000ull)
+
+#define PNV10_PSIHB_ESB_SIZE        0x0000000000100000ull
+#define PNV10_PSIHB_ESB_BASE(chip)  PNV10_CHIP_BASE(chip, 0x0006030202000000ull)
+
+#define PNV10_PSIHB_SIZE            0x0000000000100000ull
+#define PNV10_PSIHB_BASE(chip)      PNV10_CHIP_BASE(chip, 0x0006030203000000ull)
+
 #endif /* PPC_PNV_H */
diff --git a/include/hw/ppc/pnv_homer.h b/include/hw/ppc/pnv_homer.h
index abaec43..1e91c95 100644
--- a/include/hw/ppc/pnv_homer.h
+++ b/include/hw/ppc/pnv_homer.h
@@ -33,6 +33,7 @@ typedef struct PnvHomer {
     DeviceState parent;
 
     struct PnvChip *chip;
+    MemoryRegion pba_regs;
     MemoryRegion regs;
 } PnvHomer;
 
@@ -44,6 +45,8 @@ typedef struct PnvHomer {
 typedef struct PnvHomerClass {
     DeviceClass parent_class;
 
+    int pba_size;
+    const MemoryRegionOps *pba_ops;
     int homer_size;
     const MemoryRegionOps *homer_ops;
 
diff --git a/include/hw/ppc/pnv_lpc.h b/include/hw/ppc/pnv_lpc.h
index f659410..c1ec85d 100644
--- a/include/hw/ppc/pnv_lpc.h
+++ b/include/hw/ppc/pnv_lpc.h
@@ -31,6 +31,9 @@
 #define TYPE_PNV9_LPC TYPE_PNV_LPC "-POWER9"
 #define PNV9_LPC(obj) OBJECT_CHECK(PnvLpcController, (obj), TYPE_PNV9_LPC)
 
+#define TYPE_PNV10_LPC TYPE_PNV_LPC "-POWER10"
+#define PNV10_LPC(obj) OBJECT_CHECK(PnvLpcController, (obj), TYPE_PNV10_LPC)
+
 typedef struct PnvLpcController {
     DeviceState parent;
 
@@ -97,6 +100,7 @@ typedef struct PnvLpcClass {
 struct PnvChip;
 
 ISABus *pnv_lpc_isa_create(PnvLpcController *lpc, bool use_cpld, Error **errp);
-int pnv_dt_lpc(struct PnvChip *chip, void *fdt, int root_offset);
+int pnv_dt_lpc(struct PnvChip *chip, void *fdt, int root_offset,
+               uint64_t lpcm_addr, uint64_t lpcm_size);
 
 #endif /* PPC_PNV_LPC_H */
diff --git a/include/hw/ppc/pnv_occ.h b/include/hw/ppc/pnv_occ.h
index 66b0989..f8d3061 100644
--- a/include/hw/ppc/pnv_occ.h
+++ b/include/hw/ppc/pnv_occ.h
@@ -29,6 +29,9 @@
 #define TYPE_PNV9_OCC TYPE_PNV_OCC "-POWER9"
 #define PNV9_OCC(obj) OBJECT_CHECK(PnvOCC, (obj), TYPE_PNV9_OCC)
 
+#define PNV_OCC_SENSOR_DATA_BLOCK_OFFSET 0x00580000
+#define PNV_OCC_SENSOR_DATA_BLOCK_SIZE   0x00025800
+
 typedef struct PnvOCC {
     DeviceState xd;
 
@@ -50,10 +53,11 @@ typedef struct PnvOCCClass {
     DeviceClass parent_class;
 
     int xscom_size;
-    int sram_size;
     const MemoryRegionOps *xscom_ops;
-    const MemoryRegionOps *sram_ops;
     int psi_irq;
 } PnvOCCClass;
 
+#define PNV_OCC_SENSOR_DATA_BLOCK_BASE(i)                               \
+    (PNV_OCC_SENSOR_DATA_BLOCK_OFFSET + (i) * PNV_OCC_SENSOR_DATA_BLOCK_SIZE)
+
 #endif /* PPC_PNV_OCC_H */
diff --git a/include/hw/ppc/pnv_pnor.h b/include/hw/ppc/pnv_pnor.h
new file mode 100644
index 0000000..c3dd286
--- /dev/null
+++ b/include/hw/ppc/pnv_pnor.h
@@ -0,0 +1,30 @@
+/*
+ * QEMU PowerNV PNOR simple model
+ *
+ * Copyright (c) 2019, IBM Corporation.
+ *
+ * This code is licensed under the GPL version 2 or later. See the
+ * COPYING file in the top-level directory.
+ */
+#ifndef _PPC_PNV_PNOR_H
+#define _PPC_PNV_PNOR_H
+
+/*
+ * PNOR offset on the LPC FW address space
+ */
+#define PNOR_SPI_OFFSET         0x0c000000UL
+
+#define TYPE_PNV_PNOR  "pnv-pnor"
+#define PNV_PNOR(obj)  OBJECT_CHECK(PnvPnor, (obj), TYPE_PNV_PNOR)
+
+typedef struct PnvPnor {
+    SysBusDevice   parent_obj;
+
+    BlockBackend   *blk;
+
+    uint8_t        *storage;
+    uint32_t       size;
+    MemoryRegion   mmio;
+} PnvPnor;
+
+#endif /* _PPC_PNV_PNOR_H */
diff --git a/include/hw/ppc/pnv_psi.h b/include/hw/ppc/pnv_psi.h
index e82df97..f0f5b55 100644
--- a/include/hw/ppc/pnv_psi.h
+++ b/include/hw/ppc/pnv_psi.h
@@ -69,6 +69,8 @@ typedef struct Pnv9Psi {
     XiveSource source;
 } Pnv9Psi;
 
+#define TYPE_PNV10_PSI TYPE_PNV_PSI "-POWER10"
+
 #define PNV_PSI_CLASS(klass) \
      OBJECT_CLASS_CHECK(PnvPsiClass, (klass), TYPE_PNV_PSI)
 #define PNV_PSI_GET_CLASS(obj) \
@@ -77,10 +79,11 @@ typedef struct Pnv9Psi {
 typedef struct PnvPsiClass {
     SysBusDeviceClass parent_class;
 
-    int chip_type;
     uint32_t xscom_pcba;
     uint32_t xscom_size;
     uint64_t bar_mask;
+    const char *compat;
+    int compat_size;
 
     void (*irq_set)(PnvPsi *psi, int, bool state);
 } PnvPsiClass;
diff --git a/include/hw/ppc/pnv_xive.h b/include/hw/ppc/pnv_xive.h
index 4fdaa92..f4c7caa 100644
--- a/include/hw/ppc/pnv_xive.h
+++ b/include/hw/ppc/pnv_xive.h
@@ -72,9 +72,6 @@ typedef struct PnvXive {
     /* Interrupt controller registers */
     uint64_t      regs[0x300];
 
-    /* Can be configured by FW */
-    uint32_t      tctx_chipid;
-
     /*
      * Virtual Structure Descriptor tables : EAT, SBE, ENDT, NVTT, IRQ
      * These are in a SRAM protected by ECC.
diff --git a/include/hw/ppc/pnv_xscom.h b/include/hw/ppc/pnv_xscom.h
index 67641ed..f74c81a 100644
--- a/include/hw/ppc/pnv_xscom.h
+++ b/include/hw/ppc/pnv_xscom.h
@@ -22,13 +22,11 @@
 
 #include "qom/object.h"
 
-typedef struct PnvXScomInterface {
-    Object parent;
-} PnvXScomInterface;
+typedef struct PnvXScomInterface PnvXScomInterface;
 
 #define TYPE_PNV_XSCOM_INTERFACE "pnv-xscom-interface"
 #define PNV_XSCOM_INTERFACE(obj) \
-     OBJECT_CHECK(PnvXScomInterface, (obj), TYPE_PNV_XSCOM_INTERFACE)
+    INTERFACE_CHECK(PnvXScomInterface, (obj), TYPE_PNV_XSCOM_INTERFACE)
 #define PNV_XSCOM_INTERFACE_CLASS(klass)                \
     OBJECT_CLASS_CHECK(PnvXScomInterfaceClass, (klass), \
                        TYPE_PNV_XSCOM_INTERFACE)
@@ -70,6 +68,12 @@ typedef struct PnvXScomInterfaceClass {
 #define PNV_XSCOM_OCC_BASE        0x0066000
 #define PNV_XSCOM_OCC_SIZE        0x6000
 
+#define PNV_XSCOM_PBA_BASE        0x2013f00
+#define PNV_XSCOM_PBA_SIZE        0x40
+
+/*
+ * Layout of the XSCOM PCB addresses (POWER 9)
+ */
 #define PNV9_XSCOM_EC_BASE(core) \
     ((uint64_t)(((core) & 0x1F) + 0x20) << 24)
 #define PNV9_XSCOM_EC_SIZE        0x100000
@@ -81,22 +85,46 @@ typedef struct PnvXScomInterfaceClass {
 #define PNV9_XSCOM_OCC_BASE       PNV_XSCOM_OCC_BASE
 #define PNV9_XSCOM_OCC_SIZE       0x8000
 
+#define PNV9_XSCOM_PBA_BASE       0x5012b00
+#define PNV9_XSCOM_PBA_SIZE       0x40
+
 #define PNV9_XSCOM_PSIHB_BASE     0x5012900
 #define PNV9_XSCOM_PSIHB_SIZE     0x100
 
 #define PNV9_XSCOM_XIVE_BASE      0x5013000
 #define PNV9_XSCOM_XIVE_SIZE      0x300
 
-extern void pnv_xscom_realize(PnvChip *chip, uint64_t size, Error **errp);
-extern int pnv_dt_xscom(PnvChip *chip, void *fdt, int offset);
-
-extern void pnv_xscom_add_subregion(PnvChip *chip, hwaddr offset,
-                                    MemoryRegion *mr);
-extern void pnv_xscom_region_init(MemoryRegion *mr,
-                                  struct Object *owner,
-                                  const MemoryRegionOps *ops,
-                                  void *opaque,
-                                  const char *name,
-                                  uint64_t size);
+/*
+ * Layout of the XSCOM PCB addresses (POWER 10)
+ */
+#define PNV10_XSCOM_EQ_CHIPLET(core)  (0x20 + ((core) >> 2))
+#define PNV10_XSCOM_EQ(chiplet)       ((chiplet) << 24)
+#define PNV10_XSCOM_EC(proc)                    \
+    ((0x2 << 16) | ((1 << (3 - (proc))) << 12))
+
+#define PNV10_XSCOM_EQ_BASE(core)     \
+    ((uint64_t) PNV10_XSCOM_EQ(PNV10_XSCOM_EQ_CHIPLET(core)))
+#define PNV10_XSCOM_EQ_SIZE        0x100000
+
+#define PNV10_XSCOM_EC_BASE(core) \
+    ((uint64_t) PNV10_XSCOM_EQ_BASE(core) | PNV10_XSCOM_EC(core & 0x3))
+#define PNV10_XSCOM_EC_SIZE        0x100000
+
+#define PNV10_XSCOM_PSIHB_BASE     0x3011D00
+#define PNV10_XSCOM_PSIHB_SIZE     0x100
+
+void pnv_xscom_realize(PnvChip *chip, uint64_t size, Error **errp);
+int pnv_dt_xscom(PnvChip *chip, void *fdt, int root_offset,
+                 uint64_t xscom_base, uint64_t xscom_size,
+                 const char *compat, int compat_size);
+
+void pnv_xscom_add_subregion(PnvChip *chip, hwaddr offset,
+                             MemoryRegion *mr);
+void pnv_xscom_region_init(MemoryRegion *mr,
+                           struct Object *owner,
+                           const MemoryRegionOps *ops,
+                           void *opaque,
+                           const char *name,
+                           uint64_t size);
 
 #endif /* PPC_PNV_XSCOM_H */
diff --git a/include/hw/ppc/ppc.h b/include/hw/ppc/ppc.h
index 4bdcb8b..4ea5436 100644
--- a/include/hw/ppc/ppc.h
+++ b/include/hw/ppc/ppc.h
@@ -5,6 +5,7 @@
 
 void ppc_set_irq(PowerPCCPU *cpu, int n_IRQ, int level);
 PowerPCCPU *ppc_get_vcpu_by_pir(int pir);
+int ppc_cpu_pir(PowerPCCPU *cpu);
 
 /* PowerPC hardware exceptions management helpers */
 typedef void (*clk_setup_cb)(void *opaque, uint32_t freq);
@@ -23,6 +24,7 @@ struct ppc_tb_t {
     /* Time base management */
     int64_t  tb_offset;    /* Compensation                    */
     int64_t  atb_offset;   /* Compensation                    */
+    int64_t  vtb_offset;
     uint32_t tb_freq;      /* TB frequency                    */
     /* Decrementer management */
     uint64_t decr_next;    /* Tick for next decr interrupt    */
@@ -31,8 +33,7 @@ struct ppc_tb_t {
     /* Hypervisor decrementer management */
     uint64_t hdecr_next;    /* Tick for next hdecr interrupt  */
     QEMUTimer *hdecr_timer;
-    uint64_t purr_load;
-    uint64_t purr_start;
+    int64_t purr_offset;
     void *opaque;
     uint32_t flags;
 };
@@ -76,6 +77,7 @@ static inline void ppc970_irq_init(PowerPCCPU *cpu) {}
 static inline void ppcPOWER7_irq_init(PowerPCCPU *cpu) {}
 static inline void ppcPOWER9_irq_init(PowerPCCPU *cpu) {}
 static inline void ppce500_irq_init(PowerPCCPU *cpu) {}
+static inline void ppc_irq_reset(PowerPCCPU *cpu) {}
 #else
 void ppc40x_irq_init(PowerPCCPU *cpu);
 void ppce500_irq_init(PowerPCCPU *cpu);
@@ -83,6 +85,7 @@ void ppc6xx_irq_init(PowerPCCPU *cpu);
 void ppc970_irq_init(PowerPCCPU *cpu);
 void ppcPOWER7_irq_init(PowerPCCPU *cpu);
 void ppcPOWER9_irq_init(PowerPCCPU *cpu);
+void ppc_irq_reset(PowerPCCPU *cpu);
 #endif
 
 /* PPC machines for OpenBIOS */
diff --git a/include/hw/ppc/spapr.h b/include/hw/ppc/spapr.h
index d5ab5ea..61f005c 100644
--- a/include/hw/ppc/spapr.h
+++ b/include/hw/ppc/spapr.h
@@ -766,11 +766,9 @@ struct SpaprEventLogEntry {
     QTAILQ_ENTRY(SpaprEventLogEntry) next;
 };
 
+void *spapr_build_fdt(SpaprMachineState *spapr, bool reset, size_t space);
 void spapr_events_init(SpaprMachineState *sm);
 void spapr_dt_events(SpaprMachineState *sm, void *fdt);
-int spapr_h_cas_compose_response(SpaprMachineState *sm,
-                                 target_ulong addr, target_ulong size,
-                                 SpaprOptionVector *ov5_updates);
 void close_htab_fd(SpaprMachineState *spapr);
 void spapr_setup_hpt_and_vrma(SpaprMachineState *spapr);
 void spapr_free_hpt(SpaprMachineState *spapr);
diff --git a/include/hw/ppc/spapr_irq.h b/include/hw/ppc/spapr_irq.h
index ff814d1..ca8cb44 100644
--- a/include/hw/ppc/spapr_irq.h
+++ b/include/hw/ppc/spapr_irq.h
@@ -43,7 +43,8 @@ typedef struct SpaprInterruptController SpaprInterruptController;
 typedef struct SpaprInterruptControllerClass {
     InterfaceClass parent;
 
-    int (*activate)(SpaprInterruptController *intc, Error **errp);
+    int (*activate)(SpaprInterruptController *intc, uint32_t nr_servers,
+                    Error **errp);
     void (*deactivate)(SpaprInterruptController *intc);
 
     /*
@@ -98,8 +99,13 @@ qemu_irq spapr_qirq(SpaprMachineState *spapr, int irq);
 int spapr_irq_post_load(SpaprMachineState *spapr, int version_id);
 void spapr_irq_reset(SpaprMachineState *spapr, Error **errp);
 int spapr_irq_get_phandle(SpaprMachineState *spapr, void *fdt, Error **errp);
-int spapr_irq_init_kvm(int (*fn)(SpaprInterruptController *, Error **),
+
+typedef int (*SpaprInterruptControllerInitKvm)(SpaprInterruptController *,
+                                               uint32_t, Error **);
+
+int spapr_irq_init_kvm(SpaprInterruptControllerInitKvm fn,
                        SpaprInterruptController *intc,
+                       uint32_t nr_servers,
                        Error **errp);
 
 /*
diff --git a/include/hw/ppc/spapr_ovec.h b/include/hw/ppc/spapr_ovec.h
index 7891e9c..2bed517 100644
--- a/include/hw/ppc/spapr_ovec.h
+++ b/include/hw/ppc/spapr_ovec.h
@@ -66,9 +66,7 @@ SpaprOptionVector *spapr_ovec_clone(SpaprOptionVector *ov_orig);
 void spapr_ovec_intersect(SpaprOptionVector *ov,
                           SpaprOptionVector *ov1,
                           SpaprOptionVector *ov2);
-bool spapr_ovec_diff(SpaprOptionVector *ov,
-                     SpaprOptionVector *ov_old,
-                     SpaprOptionVector *ov_new);
+bool spapr_ovec_subset(SpaprOptionVector *ov1, SpaprOptionVector *ov2);
 void spapr_ovec_cleanup(SpaprOptionVector *ov);
 void spapr_ovec_set(SpaprOptionVector *ov, long bitnr);
 void spapr_ovec_clear(SpaprOptionVector *ov, long bitnr);
diff --git a/include/hw/ppc/spapr_vio.h b/include/hw/ppc/spapr_vio.h
index 72762ed..ce6d9b0 100644
--- a/include/hw/ppc/spapr_vio.h
+++ b/include/hw/ppc/spapr_vio.h
@@ -80,10 +80,10 @@ struct SpaprVioBus {
     uint32_t next_reg;
 };
 
-extern SpaprVioBus *spapr_vio_bus_init(void);
-extern SpaprVioDevice *spapr_vio_find_by_reg(SpaprVioBus *bus, uint32_t reg);
+SpaprVioBus *spapr_vio_bus_init(void);
+SpaprVioDevice *spapr_vio_find_by_reg(SpaprVioBus *bus, uint32_t reg);
 void spapr_dt_vdevice(SpaprVioBus *bus, void *fdt);
-extern gchar *spapr_vio_stdout_path(SpaprVioBus *bus);
+gchar *spapr_vio_stdout_path(SpaprVioBus *bus);
 
 static inline void spapr_vio_irq_pulse(SpaprVioDevice *dev)
 {
diff --git a/include/hw/ppc/spapr_xive.h b/include/hw/ppc/spapr_xive.h
index 742b7e8..3a103c2 100644
--- a/include/hw/ppc/spapr_xive.h
+++ b/include/hw/ppc/spapr_xive.h
@@ -66,7 +66,8 @@ int spapr_xive_end_to_target(uint8_t end_blk, uint32_t end_idx,
 /*
  * KVM XIVE device helpers
  */
-int kvmppc_xive_connect(SpaprInterruptController *intc, Error **errp);
+int kvmppc_xive_connect(SpaprInterruptController *intc, uint32_t nr_servers,
+                        Error **errp);
 void kvmppc_xive_disconnect(SpaprInterruptController *intc);
 void kvmppc_xive_reset(SpaprXive *xive, Error **errp);
 void kvmppc_xive_set_source_config(SpaprXive *xive, uint32_t lisn, XiveEAS *eas,
diff --git a/include/hw/ppc/xics_spapr.h b/include/hw/ppc/xics_spapr.h
index 28b8703..1c65c96 100644
--- a/include/hw/ppc/xics_spapr.h
+++ b/include/hw/ppc/xics_spapr.h
@@ -32,7 +32,8 @@
 #define TYPE_ICS_SPAPR "ics-spapr"
 #define ICS_SPAPR(obj) OBJECT_CHECK(ICSState, (obj), TYPE_ICS_SPAPR)
 
-int xics_kvm_connect(SpaprInterruptController *intc, Error **errp);
+int xics_kvm_connect(SpaprInterruptController *intc, uint32_t nr_servers,
+                     Error **errp);
 void xics_kvm_disconnect(SpaprInterruptController *intc);
 bool xics_kvm_has_broken_disconnect(SpaprMachineState *spapr);
 
diff --git a/include/hw/ppc/xive.h b/include/hw/ppc/xive.h
index 8fd439e..1b7b890 100644
--- a/include/hw/ppc/xive.h
+++ b/include/hw/ppc/xive.h
@@ -351,7 +351,7 @@ typedef struct XiveRouterClass {
                    XiveNVT *nvt);
     int (*write_nvt)(XiveRouter *xrtr, uint8_t nvt_blk, uint32_t nvt_idx,
                      XiveNVT *nvt, uint8_t word_number);
-    XiveTCTX *(*get_tctx)(XiveRouter *xrtr, CPUState *cs);
+    uint8_t (*get_block_id)(XiveRouter *xrtr);
 } XiveRouterClass;
 
 int xive_router_get_eas(XiveRouter *xrtr, uint8_t eas_blk, uint32_t eas_idx,
@@ -364,10 +364,63 @@ int xive_router_get_nvt(XiveRouter *xrtr, uint8_t nvt_blk, uint32_t nvt_idx,
                         XiveNVT *nvt);
 int xive_router_write_nvt(XiveRouter *xrtr, uint8_t nvt_blk, uint32_t nvt_idx,
                           XiveNVT *nvt, uint8_t word_number);
-XiveTCTX *xive_router_get_tctx(XiveRouter *xrtr, CPUState *cs);
 void xive_router_notify(XiveNotifier *xn, uint32_t lisn);
 
 /*
+ * XIVE Presenter
+ */
+
+typedef struct XiveTCTXMatch {
+    XiveTCTX *tctx;
+    uint8_t ring;
+} XiveTCTXMatch;
+
+typedef struct XivePresenter XivePresenter;
+
+#define TYPE_XIVE_PRESENTER "xive-presenter"
+#define XIVE_PRESENTER(obj)                                     \
+    INTERFACE_CHECK(XivePresenter, (obj), TYPE_XIVE_PRESENTER)
+#define XIVE_PRESENTER_CLASS(klass)                                     \
+    OBJECT_CLASS_CHECK(XivePresenterClass, (klass), TYPE_XIVE_PRESENTER)
+#define XIVE_PRESENTER_GET_CLASS(obj)                                   \
+    OBJECT_GET_CLASS(XivePresenterClass, (obj), TYPE_XIVE_PRESENTER)
+
+typedef struct XivePresenterClass {
+    InterfaceClass parent;
+    int (*match_nvt)(XivePresenter *xptr, uint8_t format,
+                     uint8_t nvt_blk, uint32_t nvt_idx,
+                     bool cam_ignore, uint8_t priority,
+                     uint32_t logic_serv, XiveTCTXMatch *match);
+} XivePresenterClass;
+
+int xive_presenter_tctx_match(XivePresenter *xptr, XiveTCTX *tctx,
+                              uint8_t format,
+                              uint8_t nvt_blk, uint32_t nvt_idx,
+                              bool cam_ignore, uint32_t logic_serv);
+
+/*
+ * XIVE Fabric (Interface between Interrupt Controller and Machine)
+ */
+
+typedef struct XiveFabric XiveFabric;
+
+#define TYPE_XIVE_FABRIC "xive-fabric"
+#define XIVE_FABRIC(obj)                                     \
+    INTERFACE_CHECK(XiveFabric, (obj), TYPE_XIVE_FABRIC)
+#define XIVE_FABRIC_CLASS(klass)                                     \
+    OBJECT_CLASS_CHECK(XiveFabricClass, (klass), TYPE_XIVE_FABRIC)
+#define XIVE_FABRIC_GET_CLASS(obj)                                   \
+    OBJECT_GET_CLASS(XiveFabricClass, (obj), TYPE_XIVE_FABRIC)
+
+typedef struct XiveFabricClass {
+    InterfaceClass parent;
+    int (*match_nvt)(XiveFabric *xfb, uint8_t format,
+                     uint8_t nvt_blk, uint32_t nvt_idx,
+                     bool cam_ignore, uint8_t priority,
+                     uint32_t logic_serv, XiveTCTXMatch *match);
+} XiveFabricClass;
+
+/*
  * XIVE END ESBs
  */
 
@@ -379,7 +432,6 @@ typedef struct XiveENDSource {
     DeviceState parent;
 
     uint32_t        nr_ends;
-    uint8_t         block_id;
 
     /* ESB memory region */
     uint32_t        esb_shift;
@@ -408,20 +460,16 @@ typedef struct XiveENDSource {
 #define XIVE_TM_OS_PAGE         0x2
 #define XIVE_TM_USER_PAGE       0x3
 
-extern const MemoryRegionOps xive_tm_ops;
-void xive_tctx_tm_write(XiveTCTX *tctx, hwaddr offset, uint64_t value,
-                        unsigned size);
-uint64_t xive_tctx_tm_read(XiveTCTX *tctx, hwaddr offset, unsigned size);
+void xive_tctx_tm_write(XivePresenter *xptr, XiveTCTX *tctx, hwaddr offset,
+                        uint64_t value, unsigned size);
+uint64_t xive_tctx_tm_read(XivePresenter *xptr, XiveTCTX *tctx, hwaddr offset,
+                           unsigned size);
 
 void xive_tctx_pic_print_info(XiveTCTX *tctx, Monitor *mon);
 Object *xive_tctx_create(Object *cpu, XiveRouter *xrtr, Error **errp);
 void xive_tctx_reset(XiveTCTX *tctx);
 void xive_tctx_destroy(XiveTCTX *tctx);
-
-static inline uint32_t xive_nvt_cam_line(uint8_t nvt_blk, uint32_t nvt_idx)
-{
-    return (nvt_blk << 19) | nvt_idx;
-}
+void xive_tctx_ipb_update(XiveTCTX *tctx, uint8_t ring, uint8_t ipb);
 
 /*
  * KVM XIVE device helpers
diff --git a/include/hw/ppc/xive_regs.h b/include/hw/ppc/xive_regs.h
index 55307cd..09f2436 100644
--- a/include/hw/ppc/xive_regs.h
+++ b/include/hw/ppc/xive_regs.h
@@ -252,9 +252,12 @@ typedef struct XiveNVT {
         uint32_t        w0;
 #define NVT_W0_VALID             PPC_BIT32(0)
         uint32_t        w1;
+#define NVT_W1_EQ_BLOCK          PPC_BITMASK32(0, 3)
+#define NVT_W1_EQ_INDEX          PPC_BITMASK32(4, 31)
         uint32_t        w2;
         uint32_t        w3;
         uint32_t        w4;
+#define NVT_W4_IPB               PPC_BITMASK32(16, 23)
         uint32_t        w5;
         uint32_t        w6;
         uint32_t        w7;
@@ -271,4 +274,26 @@ typedef struct XiveNVT {
 
 #define xive_nvt_is_valid(nvt)    (be32_to_cpu((nvt)->w0) & NVT_W0_VALID)
 
+/*
+ * The VP number space in a block is defined by the END_W6_NVT_INDEX
+ * field of the XIVE END
+ */
+#define XIVE_NVT_SHIFT                19
+#define XIVE_NVT_COUNT                (1 << XIVE_NVT_SHIFT)
+
+static inline uint32_t xive_nvt_cam_line(uint8_t nvt_blk, uint32_t nvt_idx)
+{
+    return (nvt_blk << XIVE_NVT_SHIFT) | nvt_idx;
+}
+
+static inline uint32_t xive_nvt_idx(uint32_t cam_line)
+{
+    return cam_line & ((1 << XIVE_NVT_SHIFT) - 1);
+}
+
+static inline uint32_t xive_nvt_blk(uint32_t cam_line)
+{
+    return (cam_line >> XIVE_NVT_SHIFT) & 0xf;
+}
+
 #endif /* PPC_XIVE_REGS_H */
diff --git a/include/standard-headers/linux/ethtool.h b/include/standard-headers/linux/ethtool.h
index 4ff422b..6e8a10e 100644
--- a/include/standard-headers/linux/ethtool.h
+++ b/include/standard-headers/linux/ethtool.h
@@ -1507,6 +1507,11 @@ enum ethtool_link_mode_bit_indices {
 	ETHTOOL_LINK_MODE_200000baseCR4_Full_BIT	 = 66,
 	ETHTOOL_LINK_MODE_100baseT1_Full_BIT		 = 67,
 	ETHTOOL_LINK_MODE_1000baseT1_Full_BIT		 = 68,
+	ETHTOOL_LINK_MODE_400000baseKR8_Full_BIT	 = 69,
+	ETHTOOL_LINK_MODE_400000baseSR8_Full_BIT	 = 70,
+	ETHTOOL_LINK_MODE_400000baseLR8_ER8_FR8_Full_BIT = 71,
+	ETHTOOL_LINK_MODE_400000baseDR8_Full_BIT	 = 72,
+	ETHTOOL_LINK_MODE_400000baseCR8_Full_BIT	 = 73,
 
 	/* must be last entry */
 	__ETHTOOL_LINK_MODE_MASK_NBITS
@@ -1618,6 +1623,7 @@ enum ethtool_link_mode_bit_indices {
 #define SPEED_56000		56000
 #define SPEED_100000		100000
 #define SPEED_200000		200000
+#define SPEED_400000		400000
 
 #define SPEED_UNKNOWN		-1
 
diff --git a/include/standard-headers/linux/virtio_ring.h b/include/standard-headers/linux/virtio_ring.h
index 306cd41..f230fed 100644
--- a/include/standard-headers/linux/virtio_ring.h
+++ b/include/standard-headers/linux/virtio_ring.h
@@ -167,7 +167,7 @@ static inline void vring_init(struct vring *vr, unsigned int num, void *p,
 {
 	vr->num = num;
 	vr->desc = p;
-	vr->avail = p + num*sizeof(struct vring_desc);
+	vr->avail = (struct vring_avail *)((char *)p + num * sizeof(struct vring_desc));
 	vr->used = (void *)(((uintptr_t)&vr->avail->ring[num] + sizeof(__virtio16)
 		+ align-1) & ~(align - 1));
 }
diff --git a/linux-headers/asm-arm/kvm.h b/linux-headers/asm-arm/kvm.h
index 9d379d3..0db5644 100644
--- a/linux-headers/asm-arm/kvm.h
+++ b/linux-headers/asm-arm/kvm.h
@@ -131,8 +131,9 @@ struct kvm_vcpu_events {
 	struct {
 		__u8 serror_pending;
 		__u8 serror_has_esr;
+		__u8 ext_dabt_pending;
 		/* Align it to 8 bytes */
-		__u8 pad[6];
+		__u8 pad[5];
 		__u64 serror_esr;
 	} exception;
 	__u32 reserved[12];
diff --git a/linux-headers/asm-arm64/kvm.h b/linux-headers/asm-arm64/kvm.h
index 0ce6e49..920af01 100644
--- a/linux-headers/asm-arm64/kvm.h
+++ b/linux-headers/asm-arm64/kvm.h
@@ -164,8 +164,9 @@ struct kvm_vcpu_events {
 	struct {
 		__u8 serror_pending;
 		__u8 serror_has_esr;
+		__u8 ext_dabt_pending;
 		/* Align it to 8 bytes */
-		__u8 pad[6];
+		__u8 pad[5];
 		__u64 serror_esr;
 	} exception;
 	__u32 reserved[12];
@@ -323,6 +324,8 @@ struct kvm_vcpu_events {
 #define KVM_ARM_VCPU_TIMER_CTRL		1
 #define   KVM_ARM_VCPU_TIMER_IRQ_VTIMER		0
 #define   KVM_ARM_VCPU_TIMER_IRQ_PTIMER		1
+#define KVM_ARM_VCPU_PVTIME_CTRL	2
+#define   KVM_ARM_VCPU_PVTIME_IPA	0
 
 /* KVM_IRQ_LINE irq field index values */
 #define KVM_ARM_IRQ_VCPU2_SHIFT		28
diff --git a/linux-headers/asm-mips/unistd_n32.h b/linux-headers/asm-mips/unistd_n32.h
index 7dffe8e..659d5c9 100644
--- a/linux-headers/asm-mips/unistd_n32.h
+++ b/linux-headers/asm-mips/unistd_n32.h
@@ -364,6 +364,7 @@
 #define __NR_fsmount	(__NR_Linux + 432)
 #define __NR_fspick	(__NR_Linux + 433)
 #define __NR_pidfd_open	(__NR_Linux + 434)
+#define __NR_clone3	(__NR_Linux + 435)
 
 
 #endif /* _ASM_MIPS_UNISTD_N32_H */
diff --git a/linux-headers/asm-mips/unistd_n64.h b/linux-headers/asm-mips/unistd_n64.h
index f4592d6..4b6310a 100644
--- a/linux-headers/asm-mips/unistd_n64.h
+++ b/linux-headers/asm-mips/unistd_n64.h
@@ -340,6 +340,7 @@
 #define __NR_fsmount	(__NR_Linux + 432)
 #define __NR_fspick	(__NR_Linux + 433)
 #define __NR_pidfd_open	(__NR_Linux + 434)
+#define __NR_clone3	(__NR_Linux + 435)
 
 
 #endif /* _ASM_MIPS_UNISTD_N64_H */
diff --git a/linux-headers/asm-mips/unistd_o32.h b/linux-headers/asm-mips/unistd_o32.h
index 04c6728..4ce7b4e 100644
--- a/linux-headers/asm-mips/unistd_o32.h
+++ b/linux-headers/asm-mips/unistd_o32.h
@@ -410,6 +410,7 @@
 #define __NR_fsmount	(__NR_Linux + 432)
 #define __NR_fspick	(__NR_Linux + 433)
 #define __NR_pidfd_open	(__NR_Linux + 434)
+#define __NR_clone3	(__NR_Linux + 435)
 
 
 #endif /* _ASM_MIPS_UNISTD_O32_H */
diff --git a/linux-headers/asm-powerpc/kvm.h b/linux-headers/asm-powerpc/kvm.h
index b0f72de..264e266 100644
--- a/linux-headers/asm-powerpc/kvm.h
+++ b/linux-headers/asm-powerpc/kvm.h
@@ -667,6 +667,8 @@ struct kvm_ppc_cpu_char {
 
 /* PPC64 eXternal Interrupt Controller Specification */
 #define KVM_DEV_XICS_GRP_SOURCES	1	/* 64-bit source attributes */
+#define KVM_DEV_XICS_GRP_CTRL		2
+#define   KVM_DEV_XICS_NR_SERVERS	1
 
 /* Layout of 64-bit source attribute values */
 #define  KVM_XICS_DESTINATION_SHIFT	0
@@ -683,6 +685,7 @@ struct kvm_ppc_cpu_char {
 #define KVM_DEV_XIVE_GRP_CTRL		1
 #define   KVM_DEV_XIVE_RESET		1
 #define   KVM_DEV_XIVE_EQ_SYNC		2
+#define   KVM_DEV_XIVE_NR_SERVERS	3
 #define KVM_DEV_XIVE_GRP_SOURCE		2	/* 64-bit source identifier */
 #define KVM_DEV_XIVE_GRP_SOURCE_CONFIG	3	/* 64-bit source identifier */
 #define KVM_DEV_XIVE_GRP_EQ_CONFIG	4	/* 64-bit EQ identifier */
diff --git a/linux-headers/linux/kvm.h b/linux-headers/linux/kvm.h
index 3d9b18f..3b27a1a 100644
--- a/linux-headers/linux/kvm.h
+++ b/linux-headers/linux/kvm.h
@@ -235,6 +235,7 @@ struct kvm_hyperv_exit {
 #define KVM_EXIT_S390_STSI        25
 #define KVM_EXIT_IOAPIC_EOI       26
 #define KVM_EXIT_HYPERV           27
+#define KVM_EXIT_ARM_NISV         28
 
 /* For KVM_EXIT_INTERNAL_ERROR */
 /* Emulate instruction failed. */
@@ -394,6 +395,11 @@ struct kvm_run {
 		} eoi;
 		/* KVM_EXIT_HYPERV */
 		struct kvm_hyperv_exit hyperv;
+		/* KVM_EXIT_ARM_NISV */
+		struct {
+			__u64 esr_iss;
+			__u64 fault_ipa;
+		} arm_nisv;
 		/* Fix the size of the union. */
 		char padding[256];
 	};
@@ -1000,6 +1006,9 @@ struct kvm_ppc_resize_hpt {
 #define KVM_CAP_PMU_EVENT_FILTER 173
 #define KVM_CAP_ARM_IRQ_LINE_LAYOUT_2 174
 #define KVM_CAP_HYPERV_DIRECT_TLBFLUSH 175
+#define KVM_CAP_PPC_GUEST_DEBUG_SSTEP 176
+#define KVM_CAP_ARM_NISV_TO_USER 177
+#define KVM_CAP_ARM_INJECT_EXT_DABT 178
 
 #ifdef KVM_CAP_IRQ_ROUTING
 
@@ -1227,6 +1236,8 @@ enum kvm_device_type {
 #define KVM_DEV_TYPE_ARM_VGIC_ITS	KVM_DEV_TYPE_ARM_VGIC_ITS
 	KVM_DEV_TYPE_XIVE,
 #define KVM_DEV_TYPE_XIVE		KVM_DEV_TYPE_XIVE
+	KVM_DEV_TYPE_ARM_PV_TIME,
+#define KVM_DEV_TYPE_ARM_PV_TIME	KVM_DEV_TYPE_ARM_PV_TIME
 	KVM_DEV_TYPE_MAX,
 };
 
diff --git a/linux-headers/linux/psp-sev.h b/linux-headers/linux/psp-sev.h
index 34c3969..31f971e 100644
--- a/linux-headers/linux/psp-sev.h
+++ b/linux-headers/linux/psp-sev.h
@@ -58,6 +58,9 @@ typedef enum {
 	SEV_RET_HWSEV_RET_PLATFORM,
 	SEV_RET_HWSEV_RET_UNSAFE,
 	SEV_RET_UNSUPPORTED,
+	SEV_RET_INVALID_PARAM,
+	SEV_RET_RESOURCE_LIMIT,
+	SEV_RET_SECURE_DATA_INVALID,
 	SEV_RET_MAX,
 } sev_ret_code;
 
diff --git a/linux-user/ppc/cpu_loop.c b/linux-user/ppc/cpu_loop.c
index d5704de..5b27f86 100644
--- a/linux-user/ppc/cpu_loop.c
+++ b/linux-user/ppc/cpu_loop.c
@@ -47,6 +47,11 @@ uint32_t cpu_ppc_load_atbu(CPUPPCState *env)
     return cpu_ppc_get_tb(env) >> 32;
 }
 
+uint64_t cpu_ppc_load_vtb(CPUPPCState *env)
+{
+    return cpu_ppc_get_tb(env);
+}
+
 uint32_t cpu_ppc601_load_rtcu(CPUPPCState *env)
 __attribute__ (( alias ("cpu_ppc_load_tbu") ));
 
diff --git a/pc-bios/README b/pc-bios/README
index 91218c6..269d99a 100644
--- a/pc-bios/README
+++ b/pc-bios/README
@@ -17,7 +17,7 @@
 - SLOF (Slimline Open Firmware) is a free IEEE 1275 Open Firmware
   implementation for certain IBM POWER hardware.  The sources are at
   https://github.com/aik/SLOF, and the image currently in qemu is
-  built from git tag qemu-slof-20191209.
+  built from git tag qemu-slof-20191217.
 
 - sgabios (the Serial Graphics Adapter option ROM) provides a means for
   legacy x86 software to communicate with an attached serial console as
diff --git a/pc-bios/slof.bin b/pc-bios/slof.bin
index 50fc9b1..78d8b26 100644
--- a/pc-bios/slof.bin
+++ b/pc-bios/slof.bin
diff --git a/roms/SLOF b/roms/SLOF
-Subproject 8ebf2f55e1ba1492b942ba4b682160e644fc0f9
+Subproject 9546892a80d5a4c73deea6719de46372f007f4a
diff --git a/target/ppc/compat.c b/target/ppc/compat.c
index 7de4bf3..f48df25 100644
--- a/target/ppc/compat.c
+++ b/target/ppc/compat.c
@@ -51,36 +51,38 @@ static const CompatInfo compat_table[] = {
     { /* POWER6, ISA2.05 */
         .name = "power6",
         .pvr = CPU_POWERPC_LOGICAL_2_05,
-        .pcr = PCR_COMPAT_3_00 | PCR_COMPAT_2_07 | PCR_COMPAT_2_06 |
-               PCR_COMPAT_2_05 | PCR_TM_DIS | PCR_VSX_DIS,
+        .pcr = PCR_COMPAT_3_10 | PCR_COMPAT_3_00 | PCR_COMPAT_2_07 |
+               PCR_COMPAT_2_06 | PCR_COMPAT_2_05 | PCR_TM_DIS | PCR_VSX_DIS,
         .pcr_level = PCR_COMPAT_2_05,
         .max_vthreads = 2,
     },
     { /* POWER7, ISA2.06 */
         .name = "power7",
         .pvr = CPU_POWERPC_LOGICAL_2_06,
-        .pcr = PCR_COMPAT_3_00 | PCR_COMPAT_2_07 | PCR_COMPAT_2_06 | PCR_TM_DIS,
+        .pcr = PCR_COMPAT_3_10 | PCR_COMPAT_3_00 | PCR_COMPAT_2_07 |
+               PCR_COMPAT_2_06 | PCR_TM_DIS,
         .pcr_level = PCR_COMPAT_2_06,
         .max_vthreads = 4,
     },
     {
         .name = "power7+",
         .pvr = CPU_POWERPC_LOGICAL_2_06_PLUS,
-        .pcr = PCR_COMPAT_3_00 | PCR_COMPAT_2_07 | PCR_COMPAT_2_06 | PCR_TM_DIS,
+        .pcr = PCR_COMPAT_3_10 | PCR_COMPAT_3_00 | PCR_COMPAT_2_07 |
+               PCR_COMPAT_2_06 | PCR_TM_DIS,
         .pcr_level = PCR_COMPAT_2_06,
         .max_vthreads = 4,
     },
     { /* POWER8, ISA2.07 */
         .name = "power8",
         .pvr = CPU_POWERPC_LOGICAL_2_07,
-        .pcr = PCR_COMPAT_3_00 | PCR_COMPAT_2_07,
+        .pcr = PCR_COMPAT_3_10 | PCR_COMPAT_3_00 | PCR_COMPAT_2_07,
         .pcr_level = PCR_COMPAT_2_07,
         .max_vthreads = 8,
     },
     { /* POWER9, ISA3.00 */
         .name = "power9",
         .pvr = CPU_POWERPC_LOGICAL_3_00,
-        .pcr = PCR_COMPAT_3_00,
+        .pcr = PCR_COMPAT_3_10 | PCR_COMPAT_3_00,
         .pcr_level = PCR_COMPAT_3_00,
         /*
          * POWER9 hardware only supports 4 threads / core, but this
@@ -91,6 +93,13 @@ static const CompatInfo compat_table[] = {
          */
         .max_vthreads = 8,
     },
+    { /* POWER10, ISA3.10 */
+        .name = "power10",
+        .pvr = CPU_POWERPC_LOGICAL_3_10,
+        .pcr = PCR_COMPAT_3_10,
+        .pcr_level = PCR_COMPAT_3_10,
+        .max_vthreads = 8,
+    },
 };
 
 static const CompatInfo *compat_by_pvr(uint32_t pvr)
diff --git a/target/ppc/cpu-models.c b/target/ppc/cpu-models.c
index 086548e..4ad1686 100644
--- a/target/ppc/cpu-models.c
+++ b/target/ppc/cpu-models.c
@@ -774,6 +774,8 @@
                 "POWER9 v1.0")
     POWERPC_DEF("power9_v2.0",   CPU_POWERPC_POWER9_DD20,            POWER9,
                 "POWER9 v2.0")
+    POWERPC_DEF("power10_v1.0",  CPU_POWERPC_POWER10_DD1,            POWER10,
+                "POWER10 v1.0")
 #endif /* defined (TARGET_PPC64) */
 
 /***************************************************************************/
@@ -950,6 +952,7 @@ PowerPCCPUAlias ppc_cpu_aliases[] = {
     { "power8", "power8_v2.0" },
     { "power8nvl", "power8nvl_v1.0" },
     { "power9", "power9_v2.0" },
+    { "power10", "power10_v1.0" },
 #endif
 
     /* Generic PowerPCs */
diff --git a/target/ppc/cpu-models.h b/target/ppc/cpu-models.h
index 4fdb730..ce750b2 100644
--- a/target/ppc/cpu-models.h
+++ b/target/ppc/cpu-models.h
@@ -373,6 +373,8 @@ enum {
     CPU_POWERPC_POWER9_BASE        = 0x004E0000,
     CPU_POWERPC_POWER9_DD1         = 0x004E0100,
     CPU_POWERPC_POWER9_DD20        = 0x004E1200,
+    CPU_POWERPC_POWER10_BASE       = 0x00800000,
+    CPU_POWERPC_POWER10_DD1        = 0x00800100,
     CPU_POWERPC_970_v22            = 0x00390202,
     CPU_POWERPC_970FX_v10          = 0x00391100,
     CPU_POWERPC_970FX_v20          = 0x003C0200,
@@ -409,6 +411,7 @@ enum {
     CPU_POWERPC_LOGICAL_2_06_PLUS  = 0x0F100003,
     CPU_POWERPC_LOGICAL_2_07       = 0x0F000004,
     CPU_POWERPC_LOGICAL_3_00       = 0x0F000005,
+    CPU_POWERPC_LOGICAL_3_10       = 0x0F000006,
 };
 
 /* System version register (used on MPC 8xxx)                                */
diff --git a/target/ppc/cpu.h b/target/ppc/cpu.h
index e3e8232..103bfe9 100644
--- a/target/ppc/cpu.h
+++ b/target/ppc/cpu.h
@@ -1090,7 +1090,9 @@ struct CPUPPCState {
 #if !defined(CONFIG_USER_ONLY)
     /*
      * This is the IRQ controller, which is implementation dependent
-     * and only relevant when emulating a complete machine.
+     * and only relevant when emulating a complete machine. Note that
+     * this isn't used by recent Book3s compatible CPUs (POWER7 and
+     * newer).
      */
     uint32_t irq_input_state;
     void **irq_inputs;
@@ -1220,10 +1222,6 @@ PowerPCCPUClass *ppc_cpu_class_by_pvr(uint32_t pvr);
 PowerPCCPUClass *ppc_cpu_class_by_pvr_mask(uint32_t pvr);
 PowerPCCPUClass *ppc_cpu_get_family_class(PowerPCCPUClass *pcc);
 
-struct PPCVirtualHypervisor {
-    Object parent;
-};
-
 struct PPCVirtualHypervisorClass {
     InterfaceClass parent;
     void (*hypercall)(PPCVirtualHypervisor *vhyp, PowerPCCPU *cpu);
@@ -1305,12 +1303,16 @@ uint64_t cpu_ppc_load_atbl(CPUPPCState *env);
 uint32_t cpu_ppc_load_atbu(CPUPPCState *env);
 void cpu_ppc_store_atbl(CPUPPCState *env, uint32_t value);
 void cpu_ppc_store_atbu(CPUPPCState *env, uint32_t value);
+uint64_t cpu_ppc_load_vtb(CPUPPCState *env);
+void cpu_ppc_store_vtb(CPUPPCState *env, uint64_t value);
 bool ppc_decr_clear_on_delivery(CPUPPCState *env);
 target_ulong cpu_ppc_load_decr(CPUPPCState *env);
 void cpu_ppc_store_decr(CPUPPCState *env, target_ulong value);
 target_ulong cpu_ppc_load_hdecr(CPUPPCState *env);
 void cpu_ppc_store_hdecr(CPUPPCState *env, target_ulong value);
+void cpu_ppc_store_tbu40(CPUPPCState *env, uint64_t value);
 uint64_t cpu_ppc_load_purr(CPUPPCState *env);
+void cpu_ppc_store_purr(CPUPPCState *env, uint64_t value);
 uint32_t cpu_ppc601_load_rtcl(CPUPPCState *env);
 uint32_t cpu_ppc601_load_rtcu(CPUPPCState *env);
 #if !defined(CONFIG_USER_ONLY)
@@ -1777,6 +1779,7 @@ typedef PowerPCCPU ArchCPU;
 #define SPR_MPC_MD_DBRAM1     (0x32A)
 #define SPR_RCPU_L2U_RA3      (0x32B)
 #define SPR_TAR               (0x32F)
+#define SPR_ASDR              (0x330)
 #define SPR_IC                (0x350)
 #define SPR_VTB               (0x351)
 #define SPR_MMCRC             (0x353)
@@ -2366,6 +2369,7 @@ enum {
     PCR_COMPAT_2_06     = PPC_BIT(61),
     PCR_COMPAT_2_07     = PPC_BIT(60),
     PCR_COMPAT_3_00     = PPC_BIT(59),
+    PCR_COMPAT_3_10     = PPC_BIT(58),
     PCR_VEC_DIS         = PPC_BIT(0), /* Vec. disable (bit NA since POWER8) */
     PCR_VSX_DIS         = PPC_BIT(1), /* VSX disable (bit NA since POWER8) */
     PCR_TM_DIS          = PPC_BIT(2), /* Trans. memory disable (POWER8) */
diff --git a/target/ppc/helper.h b/target/ppc/helper.h
index f843814..cd0dfe3 100644
--- a/target/ppc/helper.h
+++ b/target/ppc/helper.h
@@ -649,11 +649,13 @@ DEF_HELPER_FLAGS_1(load_tbl, TCG_CALL_NO_RWG, tl, env)
 DEF_HELPER_FLAGS_1(load_tbu, TCG_CALL_NO_RWG, tl, env)
 DEF_HELPER_FLAGS_1(load_atbl, TCG_CALL_NO_RWG, tl, env)
 DEF_HELPER_FLAGS_1(load_atbu, TCG_CALL_NO_RWG, tl, env)
+DEF_HELPER_FLAGS_1(load_vtb, TCG_CALL_NO_RWG, tl, env)
 DEF_HELPER_FLAGS_1(load_601_rtcl, TCG_CALL_NO_RWG, tl, env)
 DEF_HELPER_FLAGS_1(load_601_rtcu, TCG_CALL_NO_RWG, tl, env)
 #if !defined(CONFIG_USER_ONLY)
 #if defined(TARGET_PPC64)
 DEF_HELPER_FLAGS_1(load_purr, TCG_CALL_NO_RWG, tl, env)
+DEF_HELPER_FLAGS_2(store_purr, TCG_CALL_NO_RWG, void, env, tl)
 DEF_HELPER_2(store_ptcr, void, env, tl)
 #endif
 DEF_HELPER_2(store_sdr1, void, env, tl)
@@ -669,6 +671,8 @@ DEF_HELPER_FLAGS_1(load_decr, TCG_CALL_NO_RWG, tl, env)
 DEF_HELPER_FLAGS_2(store_decr, TCG_CALL_NO_RWG, void, env, tl)
 DEF_HELPER_FLAGS_1(load_hdecr, TCG_CALL_NO_RWG, tl, env)
 DEF_HELPER_FLAGS_2(store_hdecr, TCG_CALL_NO_RWG, void, env, tl)
+DEF_HELPER_FLAGS_2(store_vtb, TCG_CALL_NO_RWG, void, env, tl)
+DEF_HELPER_FLAGS_2(store_tbu40, TCG_CALL_NO_RWG, void, env, tl)
 DEF_HELPER_2(store_hid0_601, void, env, tl)
 DEF_HELPER_3(store_403_pbr, void, env, i32, tl)
 DEF_HELPER_FLAGS_1(load_40x_pit, TCG_CALL_NO_RWG, tl, env)
diff --git a/target/ppc/helper_regs.h b/target/ppc/helper_regs.h
index 85dfe76..d78c2af 100644
--- a/target/ppc/helper_regs.h
+++ b/target/ppc/helper_regs.h
@@ -22,6 +22,7 @@
 
 #include "qemu/main-loop.h"
 #include "exec/exec-all.h"
+#include "sysemu/kvm.h"
 
 /* Swap temporary saved registers with GPRs */
 static inline void hreg_swap_gpr_tgpr(CPUPPCState *env)
@@ -102,6 +103,10 @@ static inline void hreg_compute_hflags(CPUPPCState *env)
 
 static inline void cpu_interrupt_exittb(CPUState *cs)
 {
+    if (!kvm_enabled()) {
+        return;
+    }
+
     if (!qemu_mutex_iothread_locked()) {
         qemu_mutex_lock_iothread();
         cpu_interrupt(cs, CPU_INTERRUPT_EXITTB);
diff --git a/target/ppc/kvm.c b/target/ppc/kvm.c
index c77f984..7406d18 100644
--- a/target/ppc/kvm.c
+++ b/target/ppc/kvm.c
@@ -2076,7 +2076,7 @@ int kvmppc_set_smt_threads(int smt)
     return ret;
 }
 
-void kvmppc_hint_smt_possible(Error **errp)
+void kvmppc_error_append_smt_possible_hint(Error **errp_in)
 {
     int i;
     GString *g;
@@ -2091,10 +2091,10 @@ void kvmppc_hint_smt_possible(Error **errp)
             }
         }
         s = g_string_free(g, false);
-        error_append_hint(errp, "%s.\n", s);
+        error_append_hint(errp_in, "%s.\n", s);
         g_free(s);
     } else {
-        error_append_hint(errp,
+        error_append_hint(errp_in,
                           "This KVM seems to be too old to support VSMT.\n");
     }
 }
diff --git a/target/ppc/kvm_ppc.h b/target/ppc/kvm_ppc.h
index 98bd7d5..47b08a4 100644
--- a/target/ppc/kvm_ppc.h
+++ b/target/ppc/kvm_ppc.h
@@ -28,7 +28,7 @@ void kvmppc_set_papr(PowerPCCPU *cpu);
 int kvmppc_set_compat(PowerPCCPU *cpu, uint32_t compat_pvr);
 void kvmppc_set_mpic_proxy(PowerPCCPU *cpu, int mpic_proxy);
 int kvmppc_smt_threads(void);
-void kvmppc_hint_smt_possible(Error **errp);
+void kvmppc_error_append_smt_possible_hint(Error **errp_in);
 int kvmppc_set_smt_threads(int smt);
 int kvmppc_clear_tsr_bits(PowerPCCPU *cpu, uint32_t tsr_bits);
 int kvmppc_or_tsr_bits(PowerPCCPU *cpu, uint32_t tsr_bits);
@@ -164,7 +164,7 @@ static inline int kvmppc_smt_threads(void)
     return 1;
 }
 
-static inline void kvmppc_hint_smt_possible(Error **errp)
+static inline void kvmppc_error_append_smt_possible_hint(Error **errp_in)
 {
     return;
 }
diff --git a/target/ppc/timebase_helper.c b/target/ppc/timebase_helper.c
index 73363e0..703bd9e 100644
--- a/target/ppc/timebase_helper.c
+++ b/target/ppc/timebase_helper.c
@@ -45,11 +45,21 @@ target_ulong helper_load_atbu(CPUPPCState *env)
     return cpu_ppc_load_atbu(env);
 }
 
+target_ulong helper_load_vtb(CPUPPCState *env)
+{
+    return cpu_ppc_load_vtb(env);
+}
+
 #if defined(TARGET_PPC64) && !defined(CONFIG_USER_ONLY)
 target_ulong helper_load_purr(CPUPPCState *env)
 {
     return (target_ulong)cpu_ppc_load_purr(env);
 }
+
+void helper_store_purr(CPUPPCState *env, target_ulong val)
+{
+    cpu_ppc_store_purr(env, val);
+}
 #endif
 
 target_ulong helper_load_601_rtcl(CPUPPCState *env)
@@ -113,6 +123,16 @@ void helper_store_hdecr(CPUPPCState *env, target_ulong val)
     cpu_ppc_store_hdecr(env, val);
 }
 
+void helper_store_vtb(CPUPPCState *env, target_ulong val)
+{
+    cpu_ppc_store_vtb(env, val);
+}
+
+void helper_store_tbu40(CPUPPCState *env, target_ulong val)
+{
+    cpu_ppc_store_tbu40(env, val);
+}
+
 target_ulong helper_load_40x_pit(CPUPPCState *env)
 {
     return load_40x_pit(env);
diff --git a/target/ppc/translate_init.inc.c b/target/ppc/translate_init.inc.c
index ba726de..d33d65d 100644
--- a/target/ppc/translate_init.inc.c
+++ b/target/ppc/translate_init.inc.c
@@ -287,6 +287,11 @@ static void spr_read_purr(DisasContext *ctx, int gprn, int sprn)
     gen_helper_load_purr(cpu_gpr[gprn], cpu_env);
 }
 
+static void spr_write_purr(DisasContext *ctx, int sprn, int gprn)
+{
+    gen_helper_store_purr(cpu_env, cpu_gpr[gprn]);
+}
+
 /* HDECR */
 static void spr_read_hdecr(DisasContext *ctx, int gprn, int sprn)
 {
@@ -312,6 +317,21 @@ static void spr_write_hdecr(DisasContext *ctx, int sprn, int gprn)
     }
 }
 
+static void spr_read_vtb(DisasContext *ctx, int gprn, int sprn)
+{
+    gen_helper_load_vtb(cpu_gpr[gprn], cpu_env);
+}
+
+static void spr_write_vtb(DisasContext *ctx, int sprn, int gprn)
+{
+    gen_helper_store_vtb(cpu_env, cpu_gpr[gprn]);
+}
+
+static void spr_write_tbu40(DisasContext *ctx, int sprn, int gprn)
+{
+    gen_helper_store_tbu40(cpu_env, cpu_gpr[gprn]);
+}
+
 #endif
 #endif
 
@@ -3354,6 +3374,11 @@ static void init_excp_POWER9(CPUPPCState *env)
 #endif
 }
 
+static void init_excp_POWER10(CPUPPCState *env)
+{
+    init_excp_POWER9(env);
+}
+
 #endif
 
 /*****************************************************************************/
@@ -7833,6 +7858,16 @@ static void gen_spr_power5p_ear(CPUPPCState *env)
                  0x00000000);
 }
 
+static void gen_spr_power5p_tb(CPUPPCState *env)
+{
+    /* TBU40 (High 40 bits of the Timebase register */
+    spr_register_hv(env, SPR_TBU40, "TBU40",
+                    SPR_NOACCESS, SPR_NOACCESS,
+                    SPR_NOACCESS, SPR_NOACCESS,
+                    SPR_NOACCESS, &spr_write_tbu40,
+                    0x00000000);
+}
+
 #if !defined(CONFIG_USER_ONLY)
 static void spr_write_hmer(DisasContext *ctx, int sprn, int gprn)
 {
@@ -7998,14 +8033,16 @@ static void gen_spr_book3s_purr(CPUPPCState *env)
 {
 #if !defined(CONFIG_USER_ONLY)
     /* PURR & SPURR: Hack - treat these as aliases for the TB for now */
-    spr_register_kvm(env, SPR_PURR,   "PURR",
-                     &spr_read_purr, SPR_NOACCESS,
-                     &spr_read_purr, SPR_NOACCESS,
-                     KVM_REG_PPC_PURR, 0x00000000);
-    spr_register_kvm(env, SPR_SPURR,   "SPURR",
-                     &spr_read_purr, SPR_NOACCESS,
-                     &spr_read_purr, SPR_NOACCESS,
-                     KVM_REG_PPC_SPURR, 0x00000000);
+    spr_register_kvm_hv(env, SPR_PURR,   "PURR",
+                        &spr_read_purr, SPR_NOACCESS,
+                        &spr_read_purr, SPR_NOACCESS,
+                        &spr_read_purr, &spr_write_purr,
+                        KVM_REG_PPC_PURR, 0x00000000);
+    spr_register_kvm_hv(env, SPR_SPURR,   "SPURR",
+                        &spr_read_purr, SPR_NOACCESS,
+                        &spr_read_purr, SPR_NOACCESS,
+                        &spr_read_purr, &spr_write_purr,
+                        KVM_REG_PPC_SPURR, 0x00000000);
 #endif
 }
 
@@ -8169,10 +8206,11 @@ static void gen_spr_power8_ebb(CPUPPCState *env)
 /* Virtual Time Base */
 static void gen_spr_vtb(CPUPPCState *env)
 {
-    spr_register_kvm(env, SPR_VTB, "VTB",
-                 SPR_NOACCESS, SPR_NOACCESS,
-                 &spr_read_tbl, SPR_NOACCESS,
-                 KVM_REG_PPC_VTB, 0x00000000);
+    spr_register_kvm_hv(env, SPR_VTB, "VTB",
+                        SPR_NOACCESS, SPR_NOACCESS,
+                        &spr_read_vtb, SPR_NOACCESS,
+                        &spr_read_vtb, &spr_write_vtb,
+                        KVM_REG_PPC_VTB, 0x00000000);
 }
 
 static void gen_spr_power8_fscr(CPUPPCState *env)
@@ -8272,6 +8310,12 @@ static void gen_spr_power9_mmu(CPUPPCState *env)
                         SPR_NOACCESS, SPR_NOACCESS,
                         &spr_read_generic, &spr_write_ptcr,
                         KVM_REG_PPC_PTCR, 0x00000000);
+    /* Address Segment Descriptor Register */
+    spr_register_hv(env, SPR_ASDR, "ASDR",
+                    SPR_NOACCESS, SPR_NOACCESS,
+                    SPR_NOACCESS, SPR_NOACCESS,
+                    &spr_read_generic, &spr_write_generic,
+                    0x0000000000000000);
 #endif
 }
 
@@ -8375,6 +8419,7 @@ static void init_proc_power5plus(CPUPPCState *env)
     gen_spr_power5p_common(env);
     gen_spr_power5p_lpar(env);
     gen_spr_power5p_ear(env);
+    gen_spr_power5p_tb(env);
 
     /* env variables */
     env->dcache_line_size = 128;
@@ -8487,6 +8532,7 @@ static void init_proc_POWER7(CPUPPCState *env)
     gen_spr_power5p_common(env);
     gen_spr_power5p_lpar(env);
     gen_spr_power5p_ear(env);
+    gen_spr_power5p_tb(env);
     gen_spr_power6_common(env);
     gen_spr_power6_dbg(env);
     gen_spr_power7_book4(env);
@@ -8628,6 +8674,7 @@ static void init_proc_POWER8(CPUPPCState *env)
     gen_spr_power5p_common(env);
     gen_spr_power5p_lpar(env);
     gen_spr_power5p_ear(env);
+    gen_spr_power5p_tb(env);
     gen_spr_power6_common(env);
     gen_spr_power6_dbg(env);
     gen_spr_power8_tce_address_control(env);
@@ -8818,6 +8865,7 @@ static void init_proc_POWER9(CPUPPCState *env)
     gen_spr_power5p_common(env);
     gen_spr_power5p_lpar(env);
     gen_spr_power5p_ear(env);
+    gen_spr_power5p_tb(env);
     gen_spr_power6_common(env);
     gen_spr_power6_dbg(env);
     gen_spr_power8_tce_address_control(env);
@@ -8996,6 +9044,216 @@ POWERPC_FAMILY(POWER9)(ObjectClass *oc, void *data)
     pcc->lpcr_pm = LPCR_PDEE | LPCR_HDEE | LPCR_EEE | LPCR_DEE | LPCR_OEE;
 }
 
+#ifdef CONFIG_SOFTMMU
+/*
+ * Radix pg sizes and AP encodings for dt node ibm,processor-radix-AP-encodings
+ * Encoded as array of int_32s in the form:
+ *  0bxxxyyyyyyyyyyyyyyyyyyyyyyyyyyyyy
+ *  x -> AP encoding
+ *  y -> radix mode supported page size (encoded as a shift)
+ */
+static struct ppc_radix_page_info POWER10_radix_page_info = {
+    .count = 4,
+    .entries = {
+        0x0000000c, /*  4K - enc: 0x0 */
+        0xa0000010, /* 64K - enc: 0x5 */
+        0x20000015, /*  2M - enc: 0x1 */
+        0x4000001e  /*  1G - enc: 0x2 */
+    }
+};
+#endif /* CONFIG_SOFTMMU */
+
+static void init_proc_POWER10(CPUPPCState *env)
+{
+    /* Common Registers */
+    init_proc_book3s_common(env);
+    gen_spr_book3s_207_dbg(env);
+
+    /* POWER8 Specific Registers */
+    gen_spr_book3s_ids(env);
+    gen_spr_amr(env);
+    gen_spr_iamr(env);
+    gen_spr_book3s_purr(env);
+    gen_spr_power5p_common(env);
+    gen_spr_power5p_lpar(env);
+    gen_spr_power5p_ear(env);
+    gen_spr_power6_common(env);
+    gen_spr_power6_dbg(env);
+    gen_spr_power8_tce_address_control(env);
+    gen_spr_power8_ids(env);
+    gen_spr_power8_ebb(env);
+    gen_spr_power8_fscr(env);
+    gen_spr_power8_pmu_sup(env);
+    gen_spr_power8_pmu_user(env);
+    gen_spr_power8_tm(env);
+    gen_spr_power8_pspb(env);
+    gen_spr_vtb(env);
+    gen_spr_power8_ic(env);
+    gen_spr_power8_book4(env);
+    gen_spr_power8_rpr(env);
+    gen_spr_power9_mmu(env);
+
+    /* POWER9 Specific registers */
+    spr_register_kvm(env, SPR_TIDR, "TIDR", NULL, NULL,
+                     spr_read_generic, spr_write_generic,
+                     KVM_REG_PPC_TIDR, 0);
+
+    /* FIXME: Filter fields properly based on privilege level */
+    spr_register_kvm_hv(env, SPR_PSSCR, "PSSCR", NULL, NULL, NULL, NULL,
+                        spr_read_generic, spr_write_generic,
+                        KVM_REG_PPC_PSSCR, 0);
+
+    /* env variables */
+    env->dcache_line_size = 128;
+    env->icache_line_size = 128;
+
+    /* Allocate hardware IRQ controller */
+    init_excp_POWER10(env);
+    ppcPOWER9_irq_init(env_archcpu(env));
+}
+
+static bool ppc_pvr_match_power10(PowerPCCPUClass *pcc, uint32_t pvr)
+{
+    if ((pvr & CPU_POWERPC_POWER_SERVER_MASK) == CPU_POWERPC_POWER10_BASE) {
+        return true;
+    }
+    return false;
+}
+
+static bool cpu_has_work_POWER10(CPUState *cs)
+{
+    PowerPCCPU *cpu = POWERPC_CPU(cs);
+    CPUPPCState *env = &cpu->env;
+
+    if (cs->halted) {
+        uint64_t psscr = env->spr[SPR_PSSCR];
+
+        if (!(cs->interrupt_request & CPU_INTERRUPT_HARD)) {
+            return false;
+        }
+
+        /* If EC is clear, just return true on any pending interrupt */
+        if (!(psscr & PSSCR_EC)) {
+            return true;
+        }
+        /* External Exception */
+        if ((env->pending_interrupts & (1u << PPC_INTERRUPT_EXT)) &&
+            (env->spr[SPR_LPCR] & LPCR_EEE)) {
+            bool heic = !!(env->spr[SPR_LPCR] & LPCR_HEIC);
+            if (heic == 0 || !msr_hv || msr_pr) {
+                return true;
+            }
+        }
+        /* Decrementer Exception */
+        if ((env->pending_interrupts & (1u << PPC_INTERRUPT_DECR)) &&
+            (env->spr[SPR_LPCR] & LPCR_DEE)) {
+            return true;
+        }
+        /* Machine Check or Hypervisor Maintenance Exception */
+        if ((env->pending_interrupts & (1u << PPC_INTERRUPT_MCK |
+            1u << PPC_INTERRUPT_HMI)) && (env->spr[SPR_LPCR] & LPCR_OEE)) {
+            return true;
+        }
+        /* Privileged Doorbell Exception */
+        if ((env->pending_interrupts & (1u << PPC_INTERRUPT_DOORBELL)) &&
+            (env->spr[SPR_LPCR] & LPCR_PDEE)) {
+            return true;
+        }
+        /* Hypervisor Doorbell Exception */
+        if ((env->pending_interrupts & (1u << PPC_INTERRUPT_HDOORBELL)) &&
+            (env->spr[SPR_LPCR] & LPCR_HDEE)) {
+            return true;
+        }
+        /* Hypervisor virtualization exception */
+        if ((env->pending_interrupts & (1u << PPC_INTERRUPT_HVIRT)) &&
+            (env->spr[SPR_LPCR] & LPCR_HVEE)) {
+            return true;
+        }
+        if (env->pending_interrupts & (1u << PPC_INTERRUPT_RESET)) {
+            return true;
+        }
+        return false;
+    } else {
+        return msr_ee && (cs->interrupt_request & CPU_INTERRUPT_HARD);
+    }
+}
+
+POWERPC_FAMILY(POWER10)(ObjectClass *oc, void *data)
+{
+    DeviceClass *dc = DEVICE_CLASS(oc);
+    PowerPCCPUClass *pcc = POWERPC_CPU_CLASS(oc);
+    CPUClass *cc = CPU_CLASS(oc);
+
+    dc->fw_name = "PowerPC,POWER10";
+    dc->desc = "POWER10";
+    dc->props = powerpc_servercpu_properties;
+    pcc->pvr_match = ppc_pvr_match_power10;
+    pcc->pcr_mask = PCR_COMPAT_2_05 | PCR_COMPAT_2_06 | PCR_COMPAT_2_07 |
+                    PCR_COMPAT_3_00;
+    pcc->pcr_supported = PCR_COMPAT_3_10 | PCR_COMPAT_3_00 | PCR_COMPAT_2_07 |
+                         PCR_COMPAT_2_06 | PCR_COMPAT_2_05;
+    pcc->init_proc = init_proc_POWER10;
+    pcc->check_pow = check_pow_nocheck;
+    cc->has_work = cpu_has_work_POWER10;
+    pcc->insns_flags = PPC_INSNS_BASE | PPC_ISEL | PPC_STRING | PPC_MFTB |
+                       PPC_FLOAT | PPC_FLOAT_FSEL | PPC_FLOAT_FRES |
+                       PPC_FLOAT_FSQRT | PPC_FLOAT_FRSQRTE |
+                       PPC_FLOAT_FRSQRTES |
+                       PPC_FLOAT_STFIWX |
+                       PPC_FLOAT_EXT |
+                       PPC_CACHE | PPC_CACHE_ICBI | PPC_CACHE_DCBZ |
+                       PPC_MEM_SYNC | PPC_MEM_EIEIO |
+                       PPC_MEM_TLBSYNC |
+                       PPC_64B | PPC_64H | PPC_64BX | PPC_ALTIVEC |
+                       PPC_SEGMENT_64B | PPC_SLBI |
+                       PPC_POPCNTB | PPC_POPCNTWD |
+                       PPC_CILDST;
+    pcc->insns_flags2 = PPC2_VSX | PPC2_VSX207 | PPC2_DFP | PPC2_DBRX |
+                        PPC2_PERM_ISA206 | PPC2_DIVE_ISA206 |
+                        PPC2_ATOMIC_ISA206 | PPC2_FP_CVT_ISA206 |
+                        PPC2_FP_TST_ISA206 | PPC2_BCTAR_ISA207 |
+                        PPC2_LSQ_ISA207 | PPC2_ALTIVEC_207 |
+                        PPC2_ISA205 | PPC2_ISA207S | PPC2_FP_CVT_S64 |
+                        PPC2_TM | PPC2_ISA300 | PPC2_PRCNTL;
+    pcc->msr_mask = (1ull << MSR_SF) |
+                    (1ull << MSR_SHV) |
+                    (1ull << MSR_TM) |
+                    (1ull << MSR_VR) |
+                    (1ull << MSR_VSX) |
+                    (1ull << MSR_EE) |
+                    (1ull << MSR_PR) |
+                    (1ull << MSR_FP) |
+                    (1ull << MSR_ME) |
+                    (1ull << MSR_FE0) |
+                    (1ull << MSR_SE) |
+                    (1ull << MSR_DE) |
+                    (1ull << MSR_FE1) |
+                    (1ull << MSR_IR) |
+                    (1ull << MSR_DR) |
+                    (1ull << MSR_PMM) |
+                    (1ull << MSR_RI) |
+                    (1ull << MSR_LE);
+    pcc->mmu_model = POWERPC_MMU_3_00;
+#if defined(CONFIG_SOFTMMU)
+    pcc->handle_mmu_fault = ppc64_v3_handle_mmu_fault;
+    /* segment page size remain the same */
+    pcc->hash64_opts = &ppc_hash64_opts_POWER7;
+    pcc->radix_page_info = &POWER10_radix_page_info;
+    pcc->lrg_decr_bits = 56;
+#endif
+    pcc->excp_model = POWERPC_EXCP_POWER9;
+    pcc->bus_model = PPC_FLAGS_INPUT_POWER9;
+    pcc->bfd_mach = bfd_mach_ppc64;
+    pcc->flags = POWERPC_FLAG_VRE | POWERPC_FLAG_SE |
+                 POWERPC_FLAG_BE | POWERPC_FLAG_PMM |
+                 POWERPC_FLAG_BUS_CLK | POWERPC_FLAG_CFAR |
+                 POWERPC_FLAG_VSX | POWERPC_FLAG_TM;
+    pcc->l1_dcache_size = 0x8000;
+    pcc->l1_icache_size = 0x8000;
+    pcc->interrupts_big_endian = ppc_cpu_interrupts_big_endian_lpcr;
+    pcc->lpcr_pm = LPCR_PDEE | LPCR_HDEE | LPCR_EEE | LPCR_DEE | LPCR_OEE;
+}
+
 #if !defined(CONFIG_USER_ONLY)
 void cpu_ppc_set_vhyp(PowerPCCPU *cpu, PPCVirtualHypervisor *vhyp)
 {
@@ -10461,6 +10719,7 @@ static void ppc_cpu_reset(CPUState *s)
     env->pending_interrupts = 0;
     s->exception_index = POWERPC_EXCP_NONE;
     env->error_code = 0;
+    ppc_irq_reset(cpu);
 
     /* tininess for underflow is detected before rounding */
     set_float_detect_tininess(float_tininess_before_rounding,