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-rwxr-xr-xconfigure6
-rw-r--r--hw/s390x/s390-pci-bus.c62
-rw-r--r--hw/s390x/s390-pci-bus.h29
-rw-r--r--hw/s390x/s390-pci-inst.c133
-rw-r--r--hw/s390x/s390-pci-inst.h1
-rw-r--r--pc-bios/s390-ccw/start.S14
-rw-r--r--target/s390x/diag.c2
7 files changed, 213 insertions, 34 deletions
diff --git a/configure b/configure
index ca3d407..12fd34f 100755
--- a/configure
+++ b/configure
@@ -5892,8 +5892,12 @@ if test "$cpu" = "ppc64" -a "$targetos" != "Darwin" ; then
roms="$roms spapr-rtas"
fi
+# Only build s390-ccw bios if we're on s390x and the compiler has -march=z900
if test "$cpu" = "s390x" ; then
- roms="$roms s390-ccw"
+ write_c_skeleton
+ if compile_prog "-march=z900" ""; then
+ roms="$roms s390-ccw"
+ fi
fi
# Probe for the need for relocating the user-only binary.
diff --git a/hw/s390x/s390-pci-bus.c b/hw/s390x/s390-pci-bus.c
index 15759b6..f017c1d 100644
--- a/hw/s390x/s390-pci-bus.c
+++ b/hw/s390x/s390-pci-bus.c
@@ -660,7 +660,7 @@ void s390_pci_iommu_enable(S390PCIIOMMU *iommu)
char *name = g_strdup_printf("iommu-s390-%04x", iommu->pbdev->uid);
memory_region_init_iommu(&iommu->iommu_mr, sizeof(iommu->iommu_mr),
TYPE_S390_IOMMU_MEMORY_REGION, OBJECT(&iommu->mr),
- name, iommu->pal + 1);
+ name, iommu->pal - iommu->pba + 1);
iommu->enabled = true;
memory_region_add_subregion(&iommu->mr, 0, MEMORY_REGION(&iommu->iommu_mr));
g_free(name);
@@ -818,28 +818,43 @@ static bool s390_pci_alloc_idx(S390pciState *s, S390PCIBusDevice *pbdev)
}
pbdev->idx = idx;
- s->next_idx = (idx + 1) & FH_MASK_INDEX;
-
return true;
}
+static void s390_pcihost_pre_plug(HotplugHandler *hotplug_dev, DeviceState *dev,
+ Error **errp)
+{
+ S390pciState *s = S390_PCI_HOST_BRIDGE(hotplug_dev);
+
+ if (object_dynamic_cast(OBJECT(dev), TYPE_PCI_DEVICE)) {
+ PCIDevice *pdev = PCI_DEVICE(dev);
+
+ if (pdev->cap_present & QEMU_PCI_CAP_MULTIFUNCTION) {
+ error_setg(errp, "multifunction not supported in s390");
+ return;
+ }
+ } else if (object_dynamic_cast(OBJECT(dev), TYPE_S390_PCI_DEVICE)) {
+ S390PCIBusDevice *pbdev = S390_PCI_DEVICE(dev);
+
+ if (!s390_pci_alloc_idx(s, pbdev)) {
+ error_setg(errp, "no slot for plugging zpci device");
+ return;
+ }
+ }
+}
+
static void s390_pcihost_plug(HotplugHandler *hotplug_dev, DeviceState *dev,
Error **errp)
{
+ S390pciState *s = S390_PCI_HOST_BRIDGE(hotplug_dev);
PCIDevice *pdev = NULL;
S390PCIBusDevice *pbdev = NULL;
- S390pciState *s = s390_get_phb();
if (object_dynamic_cast(OBJECT(dev), TYPE_PCI_BRIDGE)) {
BusState *bus;
PCIBridge *pb = PCI_BRIDGE(dev);
PCIDevice *pdev = PCI_DEVICE(dev);
- if (pdev->cap_present & QEMU_PCI_CAP_MULTIFUNCTION) {
- error_setg(errp, "multifunction not supported in s390");
- return;
- }
-
pci_bridge_map_irq(pb, dev->id, s390_pci_map_irq);
pci_setup_iommu(&pb->sec_bus, s390_pci_dma_iommu, s);
@@ -859,11 +874,6 @@ static void s390_pcihost_plug(HotplugHandler *hotplug_dev, DeviceState *dev,
} else if (object_dynamic_cast(OBJECT(dev), TYPE_PCI_DEVICE)) {
pdev = PCI_DEVICE(dev);
- if (pdev->cap_present & QEMU_PCI_CAP_MULTIFUNCTION) {
- error_setg(errp, "multifunction not supported in s390");
- return;
- }
-
if (!dev->id) {
/* In the case the PCI device does not define an id */
/* we generate one based on the PCI address */
@@ -899,19 +909,19 @@ static void s390_pcihost_plug(HotplugHandler *hotplug_dev, DeviceState *dev,
}
if (dev->hotplugged) {
- s390_pci_generate_plug_event(HP_EVENT_RESERVED_TO_STANDBY,
+ s390_pci_generate_plug_event(HP_EVENT_TO_CONFIGURED ,
pbdev->fh, pbdev->fid);
}
} else if (object_dynamic_cast(OBJECT(dev), TYPE_S390_PCI_DEVICE)) {
pbdev = S390_PCI_DEVICE(dev);
- if (!s390_pci_alloc_idx(s, pbdev)) {
- error_setg(errp, "no slot for plugging zpci device");
- return;
- }
+ /* the allocated idx is actually getting used */
+ s->next_idx = (pbdev->idx + 1) & FH_MASK_INDEX;
pbdev->fh = pbdev->idx;
QTAILQ_INSERT_TAIL(&s->zpci_devs, pbdev, link);
g_hash_table_insert(s->zpci_table, &pbdev->idx, pbdev);
+ } else {
+ g_assert_not_reached();
}
}
@@ -935,11 +945,11 @@ static void s390_pcihost_timer_cb(void *opaque)
static void s390_pcihost_unplug(HotplugHandler *hotplug_dev, DeviceState *dev,
Error **errp)
{
+ S390pciState *s = S390_PCI_HOST_BRIDGE(hotplug_dev);
PCIDevice *pci_dev = NULL;
PCIBus *bus;
int32_t devfn;
S390PCIBusDevice *pbdev = NULL;
- S390pciState *s = s390_get_phb();
if (object_dynamic_cast(OBJECT(dev), TYPE_PCI_BRIDGE)) {
error_setg(errp, "PCI bridge hot unplug currently not supported");
@@ -956,6 +966,8 @@ static void s390_pcihost_unplug(HotplugHandler *hotplug_dev, DeviceState *dev,
} else if (object_dynamic_cast(OBJECT(dev), TYPE_S390_PCI_DEVICE)) {
pbdev = S390_PCI_DEVICE(dev);
pci_dev = pbdev->pdev;
+ } else {
+ g_assert_not_reached();
}
switch (pbdev->state) {
@@ -964,6 +976,9 @@ static void s390_pcihost_unplug(HotplugHandler *hotplug_dev, DeviceState *dev,
case ZPCI_FS_STANDBY:
break;
default:
+ if (pbdev->release_timer) {
+ return;
+ }
s390_pci_generate_plug_event(HP_EVENT_DECONFIGURE_REQUEST,
pbdev->fh, pbdev->fid);
pbdev->release_timer = timer_new_ns(QEMU_CLOCK_VIRTUAL,
@@ -974,7 +989,7 @@ static void s390_pcihost_unplug(HotplugHandler *hotplug_dev, DeviceState *dev,
return;
}
- if (pbdev->release_timer && timer_pending(pbdev->release_timer)) {
+ if (pbdev->release_timer) {
timer_del(pbdev->release_timer);
timer_free(pbdev->release_timer);
pbdev->release_timer = NULL;
@@ -985,6 +1000,7 @@ static void s390_pcihost_unplug(HotplugHandler *hotplug_dev, DeviceState *dev,
bus = pci_get_bus(pci_dev);
devfn = pci_dev->devfn;
object_unparent(OBJECT(pci_dev));
+ fmb_timer_free(pbdev);
s390_pci_msix_free(pbdev);
s390_pci_iommu_free(s, bus, devfn);
pbdev->pdev = NULL;
@@ -1041,6 +1057,7 @@ static void s390_pcihost_class_init(ObjectClass *klass, void *data)
dc->reset = s390_pcihost_reset;
dc->realize = s390_pcihost_realize;
+ hc->pre_plug = s390_pcihost_pre_plug;
hc->plug = s390_pcihost_plug;
hc->unplug = s390_pcihost_unplug;
msi_nonbroken = true;
@@ -1132,6 +1149,7 @@ static void s390_pci_device_realize(DeviceState *dev, Error **errp)
}
zpci->state = ZPCI_FS_RESERVED;
+ zpci->fmb.format = ZPCI_FMB_FORMAT;
}
static void s390_pci_device_reset(DeviceState *dev)
@@ -1156,7 +1174,7 @@ static void s390_pci_device_reset(DeviceState *dev)
pci_dereg_ioat(pbdev->iommu);
}
- pbdev->fmb_addr = 0;
+ fmb_timer_free(pbdev);
}
static void s390_pci_get_fid(Object *obj, Visitor *v, const char *name,
diff --git a/hw/s390x/s390-pci-bus.h b/hw/s390x/s390-pci-bus.h
index f47a0f2..dadad1f 100644
--- a/hw/s390x/s390-pci-bus.h
+++ b/hw/s390x/s390-pci-bus.h
@@ -285,6 +285,33 @@ typedef struct S390PCIIOMMUTable {
S390PCIIOMMU *iommu[PCI_SLOT_MAX];
} S390PCIIOMMUTable;
+/* Function Measurement Block */
+#define DEFAULT_MUI 4000
+#define UPDATE_U_BIT 0x1ULL
+#define FMBK_MASK 0xfULL
+
+typedef struct ZpciFmbFmt0 {
+ uint64_t dma_rbytes;
+ uint64_t dma_wbytes;
+} ZpciFmbFmt0;
+
+#define ZPCI_FMB_CNT_LD 0
+#define ZPCI_FMB_CNT_ST 1
+#define ZPCI_FMB_CNT_STB 2
+#define ZPCI_FMB_CNT_RPCIT 3
+#define ZPCI_FMB_CNT_MAX 4
+
+#define ZPCI_FMB_FORMAT 0
+
+typedef struct ZpciFmb {
+ uint32_t format;
+ uint32_t sample;
+ uint64_t last_update;
+ uint64_t counter[ZPCI_FMB_CNT_MAX];
+ ZpciFmbFmt0 fmt0;
+} ZpciFmb;
+QEMU_BUILD_BUG_MSG(offsetof(ZpciFmb, fmt0) != 48, "padding in ZpciFmb");
+
struct S390PCIBusDevice {
DeviceState qdev;
PCIDevice *pdev;
@@ -296,6 +323,8 @@ struct S390PCIBusDevice {
uint32_t fid;
bool fid_defined;
uint64_t fmb_addr;
+ ZpciFmb fmb;
+ QEMUTimer *fmb_timer;
uint8_t isc;
uint16_t noi;
uint16_t maxstbl;
diff --git a/hw/s390x/s390-pci-inst.c b/hw/s390x/s390-pci-inst.c
index 7b61367..be28962 100644
--- a/hw/s390x/s390-pci-inst.c
+++ b/hw/s390x/s390-pci-inst.c
@@ -19,6 +19,7 @@
#include "exec/memory-internal.h"
#include "qemu/error-report.h"
#include "sysemu/hw_accel.h"
+#include "hw/s390x/tod.h"
#ifndef DEBUG_S390PCI_INST
#define DEBUG_S390PCI_INST 0
@@ -293,7 +294,7 @@ int clp_service_call(S390CPU *cpu, uint8_t r2, uintptr_t ra)
resgrp->fr = 1;
stq_p(&resgrp->dasm, 0);
stq_p(&resgrp->msia, ZPCI_MSI_ADDR);
- stw_p(&resgrp->mui, 0);
+ stw_p(&resgrp->mui, DEFAULT_MUI);
stw_p(&resgrp->i, 128);
stw_p(&resgrp->maxstbl, 128);
resgrp->version = 0;
@@ -456,6 +457,8 @@ int pcilg_service_call(S390CPU *cpu, uint8_t r1, uint8_t r2, uintptr_t ra)
return 0;
}
+ pbdev->fmb.counter[ZPCI_FMB_CNT_LD]++;
+
env->regs[r1] = data;
setcc(cpu, ZPCI_PCI_LS_OK);
return 0;
@@ -561,6 +564,8 @@ int pcistg_service_call(S390CPU *cpu, uint8_t r1, uint8_t r2, uintptr_t ra)
return 0;
}
+ pbdev->fmb.counter[ZPCI_FMB_CNT_ST]++;
+
setcc(cpu, ZPCI_PCI_LS_OK);
return 0;
}
@@ -681,6 +686,7 @@ err:
s390_set_status_code(env, r1, ZPCI_PCI_ST_FUNC_IN_ERR);
s390_pci_generate_error_event(error, pbdev->fh, pbdev->fid, start, 0);
} else {
+ pbdev->fmb.counter[ZPCI_FMB_CNT_RPCIT]++;
setcc(cpu, ZPCI_PCI_LS_OK);
}
return 0;
@@ -783,6 +789,8 @@ int pcistb_service_call(S390CPU *cpu, uint8_t r1, uint8_t r3, uint64_t gaddr,
}
}
+ pbdev->fmb.counter[ZPCI_FMB_CNT_STB]++;
+
setcc(cpu, ZPCI_PCI_LS_OK);
return 0;
@@ -889,6 +897,99 @@ void pci_dereg_ioat(S390PCIIOMMU *iommu)
iommu->g_iota = 0;
}
+void fmb_timer_free(S390PCIBusDevice *pbdev)
+{
+ if (pbdev->fmb_timer) {
+ timer_del(pbdev->fmb_timer);
+ timer_free(pbdev->fmb_timer);
+ pbdev->fmb_timer = NULL;
+ }
+ pbdev->fmb_addr = 0;
+ memset(&pbdev->fmb, 0, sizeof(ZpciFmb));
+}
+
+static int fmb_do_update(S390PCIBusDevice *pbdev, int offset, uint64_t val,
+ int len)
+{
+ MemTxResult ret;
+ uint64_t dst = pbdev->fmb_addr + offset;
+
+ switch (len) {
+ case 8:
+ address_space_stq_be(&address_space_memory, dst, val,
+ MEMTXATTRS_UNSPECIFIED,
+ &ret);
+ break;
+ case 4:
+ address_space_stl_be(&address_space_memory, dst, val,
+ MEMTXATTRS_UNSPECIFIED,
+ &ret);
+ break;
+ case 2:
+ address_space_stw_be(&address_space_memory, dst, val,
+ MEMTXATTRS_UNSPECIFIED,
+ &ret);
+ break;
+ case 1:
+ address_space_stb(&address_space_memory, dst, val,
+ MEMTXATTRS_UNSPECIFIED,
+ &ret);
+ break;
+ default:
+ ret = MEMTX_ERROR;
+ break;
+ }
+ if (ret != MEMTX_OK) {
+ s390_pci_generate_error_event(ERR_EVENT_FMBA, pbdev->fh, pbdev->fid,
+ pbdev->fmb_addr, 0);
+ fmb_timer_free(pbdev);
+ }
+
+ return ret;
+}
+
+static void fmb_update(void *opaque)
+{
+ S390PCIBusDevice *pbdev = opaque;
+ int64_t t = qemu_clock_get_ms(QEMU_CLOCK_VIRTUAL);
+ int i;
+
+ /* Update U bit */
+ pbdev->fmb.last_update *= 2;
+ pbdev->fmb.last_update |= UPDATE_U_BIT;
+ if (fmb_do_update(pbdev, offsetof(ZpciFmb, last_update),
+ pbdev->fmb.last_update,
+ sizeof(pbdev->fmb.last_update))) {
+ return;
+ }
+
+ /* Update FMB sample count */
+ if (fmb_do_update(pbdev, offsetof(ZpciFmb, sample),
+ pbdev->fmb.sample++,
+ sizeof(pbdev->fmb.sample))) {
+ return;
+ }
+
+ /* Update FMB counters */
+ for (i = 0; i < ZPCI_FMB_CNT_MAX; i++) {
+ if (fmb_do_update(pbdev, offsetof(ZpciFmb, counter[i]),
+ pbdev->fmb.counter[i],
+ sizeof(pbdev->fmb.counter[0]))) {
+ return;
+ }
+ }
+
+ /* Clear U bit and update the time */
+ pbdev->fmb.last_update = time2tod(qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL));
+ pbdev->fmb.last_update *= 2;
+ if (fmb_do_update(pbdev, offsetof(ZpciFmb, last_update),
+ pbdev->fmb.last_update,
+ sizeof(pbdev->fmb.last_update))) {
+ return;
+ }
+ timer_mod(pbdev->fmb_timer, t + DEFAULT_MUI);
+}
+
int mpcifc_service_call(S390CPU *cpu, uint8_t r1, uint64_t fiba, uint8_t ar,
uintptr_t ra)
{
@@ -1018,9 +1119,35 @@ int mpcifc_service_call(S390CPU *cpu, uint8_t r1, uint64_t fiba, uint8_t ar,
s390_set_status_code(env, r1, ZPCI_MOD_ST_SEQUENCE);
}
break;
- case ZPCI_MOD_FC_SET_MEASURE:
- pbdev->fmb_addr = ldq_p(&fib.fmb_addr);
+ case ZPCI_MOD_FC_SET_MEASURE: {
+ uint64_t fmb_addr = ldq_p(&fib.fmb_addr);
+
+ if (fmb_addr & FMBK_MASK) {
+ cc = ZPCI_PCI_LS_ERR;
+ s390_pci_generate_error_event(ERR_EVENT_FMBPRO, pbdev->fh,
+ pbdev->fid, fmb_addr, 0);
+ fmb_timer_free(pbdev);
+ break;
+ }
+
+ if (!fmb_addr) {
+ /* Stop updating FMB. */
+ fmb_timer_free(pbdev);
+ break;
+ }
+
+ if (!pbdev->fmb_timer) {
+ pbdev->fmb_timer = timer_new_ms(QEMU_CLOCK_VIRTUAL,
+ fmb_update, pbdev);
+ } else if (timer_pending(pbdev->fmb_timer)) {
+ /* Remove pending timer to update FMB address. */
+ timer_del(pbdev->fmb_timer);
+ }
+ pbdev->fmb_addr = fmb_addr;
+ timer_mod(pbdev->fmb_timer,
+ qemu_clock_get_ms(QEMU_CLOCK_VIRTUAL) + DEFAULT_MUI);
break;
+ }
default:
s390_program_interrupt(&cpu->env, PGM_OPERAND, 6, ra);
cc = ZPCI_PCI_LS_ERR;
diff --git a/hw/s390x/s390-pci-inst.h b/hw/s390x/s390-pci-inst.h
index 91c3d61..fa3bf8b 100644
--- a/hw/s390x/s390-pci-inst.h
+++ b/hw/s390x/s390-pci-inst.h
@@ -303,6 +303,7 @@ int mpcifc_service_call(S390CPU *cpu, uint8_t r1, uint64_t fiba, uint8_t ar,
uintptr_t ra);
int stpcifc_service_call(S390CPU *cpu, uint8_t r1, uint64_t fiba, uint8_t ar,
uintptr_t ra);
+void fmb_timer_free(S390PCIBusDevice *pbdev);
#define ZPCI_IO_BAR_MIN 0
#define ZPCI_IO_BAR_MAX 5
diff --git a/pc-bios/s390-ccw/start.S b/pc-bios/s390-ccw/start.S
index eb8d024..5c22cb0 100644
--- a/pc-bios/s390-ccw/start.S
+++ b/pc-bios/s390-ccw/start.S
@@ -59,9 +59,9 @@ disabled_wait:
.globl consume_sclp_int
consume_sclp_int:
/* enable service interrupts in cr0 */
- stctg 0,0,0(15)
- oi 6(15), 0x2
- lctlg 0,0,0(15)
+ stctg %c0,%c0,0(%r15)
+ oi 6(%r15),0x2
+ lctlg %c0,%c0,0(%r15)
/* prepare external call handler */
larl %r1, external_new_code
stg %r1, 0x1b8
@@ -73,10 +73,10 @@ consume_sclp_int:
external_new_code:
/* disable service interrupts in cr0 */
- stctg 0,0,0(15)
- ni 6(15), 0xfd
- lctlg 0,0,0(15)
- br 14
+ stctg %c0,%c0,0(%r15)
+ ni 6(%r15),0xfd
+ lctlg %c0,%c0,0(%r15)
+ br %r14
.align 8
disabled_wait_psw:
diff --git a/target/s390x/diag.c b/target/s390x/diag.c
index acb0f3d..aafa740 100644
--- a/target/s390x/diag.c
+++ b/target/s390x/diag.c
@@ -130,7 +130,7 @@ out:
}
return;
default:
- hw_error("Unhandled diag308 subcode %" PRIx64, subcode);
+ s390_program_interrupt(env, PGM_SPECIFICATION, ILEN_AUTO, ra);
break;
}
}
generated by cgit v1.1 at 2024-12-28 21:12:01 +0000