Merge tag 'for_upstream' of https://git.kernel.org/pub/scm/virt/kvm/mst/qemu into staging

virtio,pc,pci: features, cleanups, fixes

make TCO watchdog work by default
part of generic vdpa support
asid interrupt for vhost-vdpa
added flex bus port DVSEC for cxl

misc fixes, cleanups, documentation

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

# gpg: Signature made Wed 21 Dec 2022 12:32:36 GMT
# gpg:                using RSA key 5D09FD0871C8F85B94CA8A0D281F0DB8D28D5469
# gpg:                issuer "mst@redhat.com"
# gpg: Good signature from "Michael S. Tsirkin <mst@kernel.org>" [full]
# gpg:                 aka "Michael S. Tsirkin <mst@redhat.com>" [full]
# Primary key fingerprint: 0270 606B 6F3C DF3D 0B17  0970 C350 3912 AFBE 8E67
#      Subkey fingerprint: 5D09 FD08 71C8 F85B 94CA  8A0D 281F 0DB8 D28D 5469

* tag 'for_upstream' of https://git.kernel.org/pub/scm/virt/kvm/mst/qemu: (41 commits)
  contrib/vhost-user-blk: Replace lseek64 with lseek
  libvhost-user: Switch to unsigned int for inuse field in struct VuVirtq
  hw/virtio: Extract QMP related code virtio-qmp.c
  hw/virtio: Extract config read/write accessors to virtio-config-io.c
  hw/virtio: Constify qmp_virtio_feature_map_t[]
  hw/virtio: Guard and restrict scope of qmp_virtio_feature_map_t[]
  hw/virtio: Rename virtio_ss[] -> specific_virtio_ss[]
  hw/virtio: Add missing "hw/core/cpu.h" include
  hw/cxl/device: Add Flex Bus Port DVSEC
  hw/acpi: Rename tco.c -> ich9_tco.c
  acpi/tests/avocado/bits: add mformat as one of the dependencies
  docs/acpi/bits: document BITS_DEBUG environment variable
  pci: drop redundant PCIDeviceClass::is_bridge field
  remove DEC 21154 PCI bridge
  vhost: fix vq dirty bitmap syncing when vIOMMU is enabled
  acpi/tests/avocado/bits: add SPDX license identifiers for bios bits tests
  include/hw: attempt to document VirtIO feature variables
  vhost-user: send set log base message only once
  vdpa: always start CVQ in SVQ mode if possible
  vdpa: add shadow_data to vhost_vdpa
  ...

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

5 files changed, 38 insertions, 20 deletions

diff --git a/hw/acpi/ich9.c b/hw/acpi/ich9.c
index bd9bbad..a93c470 100644
--- a/hw/acpi/ich9.c
+++ b/hw/acpi/ich9.c
@@ -34,7 +34,7 @@
 #include "sysemu/reset.h"
 #include "sysemu/runstate.h"
 #include "hw/acpi/acpi.h"
-#include "hw/acpi/tco.h"
+#include "hw/acpi/ich9_tco.h"
 
 #include "hw/i386/ich9.h"
 #include "hw/mem/pc-dimm.h"
@@ -316,8 +316,9 @@ void ich9_pm_init(PCIDevice *lpc_pci, ICH9LPCPMRegs *pm,
 
     pm->smm_enabled = smm_enabled;
 
-    pm->enable_tco = true;
-    acpi_pm_tco_init(&pm->tco_regs, &pm->io);
+    if (pm->enable_tco) {
+        acpi_pm_tco_init(&pm->tco_regs, &pm->io);
+    }
 
     if (pm->use_acpi_hotplug_bridge) {
         acpi_pcihp_init(OBJECT(lpc_pci),
@@ -440,6 +441,7 @@ void ich9_pm_add_properties(Object *obj, ICH9LPCPMRegs *pm)
     pm->s4_val = 2;
     pm->use_acpi_hotplug_bridge = true;
     pm->keep_pci_slot_hpc = true;
+    pm->enable_tco = true;
 
     object_property_add_uint32_ptr(obj, ACPI_PM_PROP_PM_IO_BASE,
                                    &pm->pm_io_base, OBJ_PROP_FLAG_READ);
diff --git a/hw/acpi/tco.c b/hw/acpi/ich9_tco.c
index 4783721..fbf97f8 100644
--- a/hw/acpi/tco.c
+++ b/hw/acpi/ich9_tco.c
@@ -12,7 +12,7 @@
 #include "hw/i386/ich9.h"
 #include "migration/vmstate.h"
 
-#include "hw/acpi/tco.h"
+#include "hw/acpi/ich9_tco.h"
 #include "trace.h"
 
 enum {
@@ -86,6 +86,7 @@ static inline int can_start_tco_timer(TCOIORegs *tr)
 static uint32_t tco_ioport_readw(TCOIORegs *tr, uint32_t addr)
 {
     uint16_t rld;
+    uint32_t ret = 0;
 
     switch (addr) {
     case TCO_RLD:
@@ -96,35 +97,49 @@ static uint32_t tco_ioport_readw(TCOIORegs *tr, uint32_t addr)
         } else {
             rld = tr->tco.rld;
         }
-        return rld;
+        ret = rld;
+        break;
     case TCO_DAT_IN:
-        return tr->tco.din;
+        ret = tr->tco.din;
+        break;
     case TCO_DAT_OUT:
-        return tr->tco.dout;
+        ret = tr->tco.dout;
+        break;
     case TCO1_STS:
-        return tr->tco.sts1;
+        ret = tr->tco.sts1;
+        break;
     case TCO2_STS:
-        return tr->tco.sts2;
+        ret = tr->tco.sts2;
+        break;
     case TCO1_CNT:
-        return tr->tco.cnt1;
+        ret = tr->tco.cnt1;
+        break;
     case TCO2_CNT:
-        return tr->tco.cnt2;
+        ret = tr->tco.cnt2;
+        break;
     case TCO_MESSAGE1:
-        return tr->tco.msg1;
+        ret = tr->tco.msg1;
+        break;
     case TCO_MESSAGE2:
-        return tr->tco.msg2;
+        ret = tr->tco.msg2;
+        break;
     case TCO_WDCNT:
-        return tr->tco.wdcnt;
+        ret = tr->tco.wdcnt;
+        break;
     case TCO_TMR:
-        return tr->tco.tmr;
+        ret = tr->tco.tmr;
+        break;
     case SW_IRQ_GEN:
-        return tr->sw_irq_gen;
+        ret = tr->sw_irq_gen;
+        break;
     }
-    return 0;
+    trace_tco_io_read(addr, ret);
+    return ret;
 }
 
 static void tco_ioport_writew(TCOIORegs *tr, uint32_t addr, uint32_t val)
 {
+    trace_tco_io_write(addr, val);
     switch (addr) {
     case TCO_RLD:
         tr->timeouts_no = 0;
diff --git a/hw/acpi/meson.build b/hw/acpi/meson.build
index f8c820c..2ed29ae 100644
--- a/hw/acpi/meson.build
+++ b/hw/acpi/meson.build
@@ -22,7 +22,7 @@ acpi_ss.add(when: 'CONFIG_ACPI_PIIX4', if_true: files('piix4.c'))
 acpi_ss.add(when: 'CONFIG_ACPI_PCIHP', if_true: files('pcihp.c'))
 acpi_ss.add(when: 'CONFIG_ACPI_PCIHP', if_false: files('acpi-pci-hotplug-stub.c'))
 acpi_ss.add(when: 'CONFIG_ACPI_VIOT', if_true: files('viot.c'))
-acpi_ss.add(when: 'CONFIG_ACPI_X86_ICH', if_true: files('ich9.c', 'tco.c'))
+acpi_ss.add(when: 'CONFIG_ACPI_X86_ICH', if_true: files('ich9.c', 'ich9_tco.c'))
 acpi_ss.add(when: 'CONFIG_ACPI_ERST', if_true: files('erst.c'))
 acpi_ss.add(when: 'CONFIG_IPMI', if_true: files('ipmi.c'), if_false: files('ipmi-stub.c'))
 acpi_ss.add(when: 'CONFIG_PC', if_false: files('acpi-x86-stub.c'))
diff --git a/hw/acpi/pcihp.c b/hw/acpi/pcihp.c
index 84d75e6..99a898d 100644
--- a/hw/acpi/pcihp.c
+++ b/hw/acpi/pcihp.c
@@ -186,7 +186,6 @@ static PCIBus *acpi_pcihp_find_hotplug_bus(AcpiPciHpState *s, int bsel)
 
 static bool acpi_pcihp_pc_no_hotplug(AcpiPciHpState *s, PCIDevice *dev)
 {
-    PCIDeviceClass *pc = PCI_DEVICE_GET_CLASS(dev);
     DeviceClass *dc = DEVICE_GET_CLASS(dev);
     /*
      * ACPI doesn't allow hotplug of bridge devices.  Don't allow
@@ -196,7 +195,7 @@ static bool acpi_pcihp_pc_no_hotplug(AcpiPciHpState *s, PCIDevice *dev)
      * Don't allow hot-unplug of SR-IOV Virtual Functions, as they
      * will be removed implicitly, when Physical Function is unplugged.
      */
-    return (pc->is_bridge && !dev->qdev.hotplugged) || !dc->hotpluggable ||
+    return (IS_PCI_BRIDGE(dev) && !dev->qdev.hotplugged) || !dc->hotpluggable ||
            pci_is_vf(dev);
 }
 
diff --git a/hw/acpi/trace-events b/hw/acpi/trace-events
index eb60b04..78e0a86 100644
--- a/hw/acpi/trace-events
+++ b/hw/acpi/trace-events
@@ -55,6 +55,8 @@ piix4_gpe_writeb(uint64_t addr, unsigned width, uint64_t val) "addr: 0x%" PRIx64
 # tco.c
 tco_timer_reload(int ticks, int msec) "ticks=%d (%d ms)"
 tco_timer_expired(int timeouts_no, bool strap, bool no_reboot) "timeouts_no=%d no_reboot=%d/%d"
+tco_io_write(uint64_t addr, uint32_t val) "addr=0x%" PRIx64 " val=0x%" PRIx32
+tco_io_read(uint64_t addr, uint32_t val) "addr=0x%" PRIx64 " val=0x%" PRIx32
 
 # erst.c
 acpi_erst_reg_write(uint64_t addr, uint64_t val, unsigned size) "addr: 0x%04" PRIx64 " <== 0x%016" PRIx64 " (size: %u)"