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-rw-r--r--hw/block/virtio-blk.c1
-rw-r--r--hw/core/machine.c5
-rw-r--r--hw/cxl/cxl-host.c1
-rw-r--r--hw/display/ati.c2
-rw-r--r--hw/display/macfb.c1
-rw-r--r--hw/display/virtio-gpu.c58
-rw-r--r--hw/i386/pc.c3
-rw-r--r--hw/i386/x86.c2
-rw-r--r--hw/intc/ioapic_common.c4
-rw-r--r--hw/loongarch/virt.c2
-rw-r--r--hw/mem/cxl_type3.c1
-rw-r--r--hw/misc/macio/pmu.c3
-rw-r--r--hw/misc/pvpanic-pci.c2
-rw-r--r--hw/misc/xlnx-versal-trng.c3
-rw-r--r--hw/nvme/ctrl.c97
-rw-r--r--hw/nvme/meson.build2
-rw-r--r--hw/nvme/nguid.c187
-rw-r--r--hw/nvme/ns.c2
-rw-r--r--hw/nvme/nvme.h27
-rw-r--r--hw/pci-bridge/cxl_root_port.c2
-rw-r--r--hw/pci-bridge/cxl_upstream.c1
-rw-r--r--hw/ppc/mpc8544_guts.c3
-rw-r--r--hw/ppc/pnv.c23
-rw-r--r--hw/ppc/pnv_xscom.c5
-rw-r--r--hw/ppc/ppce500_spin.c3
-rw-r--r--hw/ppc/spapr.c8
-rw-r--r--hw/ppc/spapr_caps.c7
-rw-r--r--hw/s390x/s390-virtio-ccw.c4
-rw-r--r--hw/scsi/vhost-scsi.c1
-rw-r--r--hw/vfio/ap.c1
-rw-r--r--hw/vfio/container.c1
-rw-r--r--hw/vfio/helpers.c3
-rw-r--r--hw/vfio/iommufd.c1
-rw-r--r--hw/vfio/pci-quirks.c2
-rw-r--r--hw/vfio/pci.c2
-rw-r--r--hw/vfio/platform.c1
-rw-r--r--hw/virtio/vhost-user-scmi.c6
-rw-r--r--hw/virtio/vhost-vsock.c1
-rw-r--r--hw/virtio/vhost.c2
-rw-r--r--hw/virtio/virtio-pci.c2
-rw-r--r--hw/xen/xen-mapcache.c30
-rw-r--r--hw/xen/xen_pt.c6
-rw-r--r--hw/xen/xen_pt_config_init.c7
43 files changed, 419 insertions, 106 deletions
diff --git a/hw/block/virtio-blk.c b/hw/block/virtio-blk.c
index 738cb2ac36..92de315f17 100644
--- a/hw/block/virtio-blk.c
+++ b/hw/block/virtio-blk.c
@@ -1682,6 +1682,7 @@ static bool apply_iothread_vq_mapping(
 /* Context: BQL held */
 static bool virtio_blk_vq_aio_context_init(VirtIOBlock *s, Error **errp)
 {
+    ERRP_GUARD();
     VirtIODevice *vdev = VIRTIO_DEVICE(s);
     VirtIOBlkConf *conf = &s->conf;
     BusState *qbus = BUS(qdev_get_parent_bus(DEVICE(vdev)));
diff --git a/hw/core/machine.c b/hw/core/machine.c
index 0e9d646b61..e483b34459 100644
--- a/hw/core/machine.c
+++ b/hw/core/machine.c
@@ -102,6 +102,7 @@ GlobalProperty hw_compat_5_2[] = {
     { "PIIX4_PM", "smm-compat", "on"},
     { "virtio-blk-device", "report-discard-granularity", "off" },
     { "virtio-net-pci-base", "vectors", "3"},
+    { "nvme", "msix-exclusive-bar", "on"},
 };
 const size_t hw_compat_5_2_len = G_N_ELEMENTS(hw_compat_5_2);
 
@@ -718,7 +719,7 @@ HotpluggableCPUList *machine_query_hotpluggable_cpus(MachineState *machine)
     mc->possible_cpu_arch_ids(machine);
 
     for (i = 0; i < machine->possible_cpus->len; i++) {
-        Object *cpu;
+        CPUState *cpu;
         HotpluggableCPU *cpu_item = g_new0(typeof(*cpu_item), 1);
 
         cpu_item->type = g_strdup(machine->possible_cpus->cpus[i].type);
@@ -728,7 +729,7 @@ HotpluggableCPUList *machine_query_hotpluggable_cpus(MachineState *machine)
 
         cpu = machine->possible_cpus->cpus[i].cpu;
         if (cpu) {
-            cpu_item->qom_path = object_get_canonical_path(cpu);
+            cpu_item->qom_path = object_get_canonical_path(OBJECT(cpu));
         }
         QAPI_LIST_PREPEND(head, cpu_item);
     }
diff --git a/hw/cxl/cxl-host.c b/hw/cxl/cxl-host.c
index 2aa776c79c..c5f5fcfd64 100644
--- a/hw/cxl/cxl-host.c
+++ b/hw/cxl/cxl-host.c
@@ -26,6 +26,7 @@ static void cxl_fixed_memory_window_config(CXLState *cxl_state,
                                            CXLFixedMemoryWindowOptions *object,
                                            Error **errp)
 {
+    ERRP_GUARD();
     g_autofree CXLFixedWindow *fw = g_malloc0(sizeof(*fw));
     strList *target;
     int i;
diff --git a/hw/display/ati.c b/hw/display/ati.c
index 569b8f6165..8d2501bd82 100644
--- a/hw/display/ati.c
+++ b/hw/display/ati.c
@@ -991,7 +991,7 @@ static void ati_vga_realize(PCIDevice *dev, Error **errp)
     }
     vga_init(vga, OBJECT(s), pci_address_space(dev),
              pci_address_space_io(dev), true);
-    vga->con = graphic_console_init(DEVICE(s), 0, s->vga.hw_ops, &s->vga);
+    vga->con = graphic_console_init(DEVICE(s), 0, s->vga.hw_ops, vga);
     if (s->cursor_guest_mode) {
         vga->cursor_invalidate = ati_cursor_invalidate;
         vga->cursor_draw_line = ati_cursor_draw_line;
diff --git a/hw/display/macfb.c b/hw/display/macfb.c
index 418e99c8e1..1ace341a0f 100644
--- a/hw/display/macfb.c
+++ b/hw/display/macfb.c
@@ -714,6 +714,7 @@ static void macfb_nubus_set_irq(void *opaque, int n, int level)
 
 static void macfb_nubus_realize(DeviceState *dev, Error **errp)
 {
+    ERRP_GUARD();
     NubusDevice *nd = NUBUS_DEVICE(dev);
     MacfbNubusState *s = NUBUS_MACFB(dev);
     MacfbNubusDeviceClass *ndc = NUBUS_MACFB_GET_CLASS(dev);
diff --git a/hw/display/virtio-gpu.c b/hw/display/virtio-gpu.c
index 1c1ee230b3..78d5a4f164 100644
--- a/hw/display/virtio-gpu.c
+++ b/hw/display/virtio-gpu.c
@@ -600,6 +600,7 @@ static void virtio_unref_resource(pixman_image_t *image, void *data)
 static void virtio_gpu_update_scanout(VirtIOGPU *g,
                                       uint32_t scanout_id,
                                       struct virtio_gpu_simple_resource *res,
+                                      struct virtio_gpu_framebuffer *fb,
                                       struct virtio_gpu_rect *r)
 {
     struct virtio_gpu_simple_resource *ores;
@@ -617,9 +618,10 @@ static void virtio_gpu_update_scanout(VirtIOGPU *g,
     scanout->y = r->y;
     scanout->width = r->width;
     scanout->height = r->height;
+    scanout->fb = *fb;
 }
 
-static void virtio_gpu_do_set_scanout(VirtIOGPU *g,
+static bool virtio_gpu_do_set_scanout(VirtIOGPU *g,
                                       uint32_t scanout_id,
                                       struct virtio_gpu_framebuffer *fb,
                                       struct virtio_gpu_simple_resource *res,
@@ -645,7 +647,7 @@ static void virtio_gpu_do_set_scanout(VirtIOGPU *g,
                       r->x, r->y, r->width, r->height,
                       fb->width, fb->height);
         *error = VIRTIO_GPU_RESP_ERR_INVALID_PARAMETER;
-        return;
+        return false;
     }
 
     g->parent_obj.enable = 1;
@@ -653,11 +655,12 @@ static void virtio_gpu_do_set_scanout(VirtIOGPU *g,
     if (res->blob) {
         if (console_has_gl(scanout->con)) {
             if (!virtio_gpu_update_dmabuf(g, scanout_id, res, fb, r)) {
-                virtio_gpu_update_scanout(g, scanout_id, res, r);
+                virtio_gpu_update_scanout(g, scanout_id, res, fb, r);
             } else {
                 *error = VIRTIO_GPU_RESP_ERR_OUT_OF_MEMORY;
+                return false;
             }
-            return;
+            return true;
         }
 
         data = res->blob;
@@ -684,10 +687,6 @@ static void virtio_gpu_do_set_scanout(VirtIOGPU *g,
 
         /* realloc the surface ptr */
         scanout->ds = qemu_create_displaysurface_pixman(rect);
-        if (!scanout->ds) {
-            *error = VIRTIO_GPU_RESP_ERR_UNSPEC;
-            return;
-        }
 #ifdef WIN32
         qemu_displaysurface_win32_set_handle(scanout->ds, res->handle, fb->offset);
 #endif
@@ -697,7 +696,8 @@ static void virtio_gpu_do_set_scanout(VirtIOGPU *g,
                                 scanout->ds);
     }
 
-    virtio_gpu_update_scanout(g, scanout_id, res, r);
+    virtio_gpu_update_scanout(g, scanout_id, res, fb, r);
+    return true;
 }
 
 static void virtio_gpu_set_scanout(VirtIOGPU *g,
@@ -1168,7 +1168,8 @@ static void virtio_gpu_cursor_bh(void *opaque)
 
 static const VMStateDescription vmstate_virtio_gpu_scanout = {
     .name = "virtio-gpu-one-scanout",
-    .version_id = 1,
+    .version_id = 2,
+    .minimum_version_id = 1,
     .fields = (const VMStateField[]) {
         VMSTATE_UINT32(resource_id, struct virtio_gpu_scanout),
         VMSTATE_UINT32(width, struct virtio_gpu_scanout),
@@ -1180,6 +1181,12 @@ static const VMStateDescription vmstate_virtio_gpu_scanout = {
         VMSTATE_UINT32(cursor.hot_y, struct virtio_gpu_scanout),
         VMSTATE_UINT32(cursor.pos.x, struct virtio_gpu_scanout),
         VMSTATE_UINT32(cursor.pos.y, struct virtio_gpu_scanout),
+        VMSTATE_UINT32_V(fb.format, struct virtio_gpu_scanout, 2),
+        VMSTATE_UINT32_V(fb.bytes_pp, struct virtio_gpu_scanout, 2),
+        VMSTATE_UINT32_V(fb.width, struct virtio_gpu_scanout, 2),
+        VMSTATE_UINT32_V(fb.height, struct virtio_gpu_scanout, 2),
+        VMSTATE_UINT32_V(fb.stride, struct virtio_gpu_scanout, 2),
+        VMSTATE_UINT32_V(fb.offset, struct virtio_gpu_scanout, 2),
         VMSTATE_END_OF_LIST()
     },
 };
@@ -1351,6 +1358,7 @@ static int virtio_gpu_blob_save(QEMUFile *f, void *opaque, size_t size,
         if (!res->blob_size) {
             continue;
         }
+        assert(!res->image);
         qemu_put_be32(f, res->resource_id);
         qemu_put_be32(f, res->blob_size);
         qemu_put_be32(f, res->iov_cnt);
@@ -1413,24 +1421,40 @@ static int virtio_gpu_post_load(void *opaque, int version_id)
     int i;
 
     for (i = 0; i < g->parent_obj.conf.max_outputs; i++) {
-        /* FIXME: should take scanout.r.{x,y} into account */
         scanout = &g->parent_obj.scanout[i];
         if (!scanout->resource_id) {
             continue;
         }
+
         res = virtio_gpu_find_resource(g, scanout->resource_id);
         if (!res) {
             return -EINVAL;
         }
-        scanout->ds = qemu_create_displaysurface_pixman(res->image);
-        if (!scanout->ds) {
-            return -EINVAL;
-        }
+
+        if (scanout->fb.format != 0) {
+            uint32_t error = 0;
+            struct virtio_gpu_rect r = {
+                .x = scanout->x,
+                .y = scanout->y,
+                .width = scanout->width,
+                .height = scanout->height
+            };
+
+            if (!virtio_gpu_do_set_scanout(g, i, &scanout->fb, res, &r, &error)) {
+                return -EINVAL;
+            }
+        } else {
+            /* legacy v1 migration support */
+            if (!res->image) {
+                return -EINVAL;
+            }
+            scanout->ds = qemu_create_displaysurface_pixman(res->image);
 #ifdef WIN32
-        qemu_displaysurface_win32_set_handle(scanout->ds, res->handle, 0);
+            qemu_displaysurface_win32_set_handle(scanout->ds, res->handle, 0);
 #endif
+            dpy_gfx_replace_surface(scanout->con, scanout->ds);
+        }
 
-        dpy_gfx_replace_surface(scanout->con, scanout->ds);
         dpy_gfx_update_full(scanout->con);
         if (scanout->cursor.resource_id) {
             update_cursor(g, &scanout->cursor);
diff --git a/hw/i386/pc.c b/hw/i386/pc.c
index f5ff970acf..4f322e0856 100644
--- a/hw/i386/pc.c
+++ b/hw/i386/pc.c
@@ -718,7 +718,8 @@ void xen_load_linux(PCMachineState *pcms)
 
     assert(MACHINE(pcms)->kernel_filename != NULL);
 
-    fw_cfg = fw_cfg_init_io(FW_CFG_IO_BASE);
+    fw_cfg = fw_cfg_init_io_dma(FW_CFG_IO_BASE, FW_CFG_IO_BASE + 4,
+                                &address_space_memory);
     fw_cfg_add_i16(fw_cfg, FW_CFG_NB_CPUS, x86ms->boot_cpus);
     rom_set_fw(fw_cfg);
 
diff --git a/hw/i386/x86.c b/hw/i386/x86.c
index 807e09bcdb..ffbda48917 100644
--- a/hw/i386/x86.c
+++ b/hw/i386/x86.c
@@ -225,7 +225,7 @@ void x86_cpu_plug(HotplugHandler *hotplug_dev,
     }
 
     found_cpu = x86_find_cpu_slot(MACHINE(x86ms), cpu->apic_id, NULL);
-    found_cpu->cpu = OBJECT(dev);
+    found_cpu->cpu = CPU(dev);
 out:
     error_propagate(errp, local_err);
 }
diff --git a/hw/intc/ioapic_common.c b/hw/intc/ioapic_common.c
index cb9bf62146..efbe6958c8 100644
--- a/hw/intc/ioapic_common.c
+++ b/hw/intc/ioapic_common.c
@@ -152,6 +152,7 @@ static int ioapic_dispatch_post_load(void *opaque, int version_id)
 
 static void ioapic_common_realize(DeviceState *dev, Error **errp)
 {
+    ERRP_GUARD();
     IOAPICCommonState *s = IOAPIC_COMMON(dev);
     IOAPICCommonClass *info;
 
@@ -162,6 +163,9 @@ static void ioapic_common_realize(DeviceState *dev, Error **errp)
 
     info = IOAPIC_COMMON_GET_CLASS(s);
     info->realize(dev, errp);
+    if (*errp) {
+        return;
+    }
 
     sysbus_init_mmio(SYS_BUS_DEVICE(s), &s->io_memory);
     ioapic_no++;
diff --git a/hw/loongarch/virt.c b/hw/loongarch/virt.c
index 1e98d8bda5..efce112310 100644
--- a/hw/loongarch/virt.c
+++ b/hw/loongarch/virt.c
@@ -858,7 +858,7 @@ static void loongarch_init(MachineState *machine)
     for (i = 0; i < possible_cpus->len; i++) {
         cpu = cpu_create(machine->cpu_type);
         cpu->cpu_index = i;
-        machine->possible_cpus->cpus[i].cpu = OBJECT(cpu);
+        machine->possible_cpus->cpus[i].cpu = cpu;
         lacpu = LOONGARCH_CPU(cpu);
         lacpu->phy_id = machine->possible_cpus->cpus[i].arch_id;
     }
diff --git a/hw/mem/cxl_type3.c b/hw/mem/cxl_type3.c
index b679dfae1c..b0a7e9f11b 100644
--- a/hw/mem/cxl_type3.c
+++ b/hw/mem/cxl_type3.c
@@ -645,6 +645,7 @@ static DOEProtocol doe_cdat_prot[] = {
 
 static void ct3_realize(PCIDevice *pci_dev, Error **errp)
 {
+    ERRP_GUARD();
     CXLType3Dev *ct3d = CXL_TYPE3(pci_dev);
     CXLComponentState *cxl_cstate = &ct3d->cxl_cstate;
     ComponentRegisters *regs = &cxl_cstate->crb;
diff --git a/hw/misc/macio/pmu.c b/hw/misc/macio/pmu.c
index e9a90da88f..e40c51bf52 100644
--- a/hw/misc/macio/pmu.c
+++ b/hw/misc/macio/pmu.c
@@ -737,8 +737,7 @@ static void pmu_realize(DeviceState *dev, Error **errp)
     timer_mod(s->one_sec_timer, s->one_sec_target);
 
     if (s->has_adb) {
-        qbus_init(&s->adb_bus, sizeof(s->adb_bus), TYPE_ADB_BUS,
-                  dev, "adb.0");
+        qbus_init(adb_bus, sizeof(*adb_bus), TYPE_ADB_BUS, dev, "adb.0");
         adb_register_autopoll_callback(adb_bus, pmu_adb_poll, s);
     }
 }
diff --git a/hw/misc/pvpanic-pci.c b/hw/misc/pvpanic-pci.c
index c01e4ce864..83be95d0d2 100644
--- a/hw/misc/pvpanic-pci.c
+++ b/hw/misc/pvpanic-pci.c
@@ -48,7 +48,7 @@ static void pvpanic_pci_realizefn(PCIDevice *dev, Error **errp)
     PVPanicPCIState *s = PVPANIC_PCI_DEVICE(dev);
     PVPanicState *ps = &s->pvpanic;
 
-    pvpanic_setup_io(&s->pvpanic, DEVICE(s), 2);
+    pvpanic_setup_io(ps, DEVICE(s), 2);
 
     pci_register_bar(dev, 0, PCI_BASE_ADDRESS_SPACE_MEMORY, &ps->mr);
 }
diff --git a/hw/misc/xlnx-versal-trng.c b/hw/misc/xlnx-versal-trng.c
index b8111b8b66..6495188dc7 100644
--- a/hw/misc/xlnx-versal-trng.c
+++ b/hw/misc/xlnx-versal-trng.c
@@ -644,8 +644,7 @@ static void trng_prop_fault_event_set(Object *obj, Visitor *v,
     Property *prop = opaque;
     uint32_t *events = object_field_prop_ptr(obj, prop);
 
-    visit_type_uint32(v, name, events, errp);
-    if (*errp) {
+    if (!visit_type_uint32(v, name, events, errp)) {
         return;
     }
 
diff --git a/hw/nvme/ctrl.c b/hw/nvme/ctrl.c
index 76fe039704..036b15403a 100644
--- a/hw/nvme/ctrl.c
+++ b/hw/nvme/ctrl.c
@@ -2855,7 +2855,7 @@ static inline uint16_t nvme_check_copy_mcl(NvmeNamespace *ns,
         uint32_t nlb;
         nvme_copy_source_range_parse(iocb->ranges, idx, iocb->format, NULL,
                                      &nlb, NULL, NULL, NULL);
-        copy_len += nlb + 1;
+        copy_len += nlb;
     }
 
     if (copy_len > ns->id_ns.mcl) {
@@ -5642,6 +5642,10 @@ static uint16_t nvme_identify_ns_descr_list(NvmeCtrl *n, NvmeRequest *req)
     } QEMU_PACKED uuid = {};
     struct {
         NvmeIdNsDescr hdr;
+        uint8_t v[NVME_NIDL_NGUID];
+    } QEMU_PACKED nguid = {};
+    struct {
+        NvmeIdNsDescr hdr;
         uint64_t v;
     } QEMU_PACKED eui64 = {};
     struct {
@@ -5668,6 +5672,14 @@ static uint16_t nvme_identify_ns_descr_list(NvmeCtrl *n, NvmeRequest *req)
         pos += sizeof(uuid);
     }
 
+    if (!nvme_nguid_is_null(&ns->params.nguid)) {
+        nguid.hdr.nidt = NVME_NIDT_NGUID;
+        nguid.hdr.nidl = NVME_NIDL_NGUID;
+        memcpy(nguid.v, ns->params.nguid.data, NVME_NIDL_NGUID);
+        memcpy(pos, &nguid, sizeof(nguid));
+        pos += sizeof(nguid);
+    }
+
     if (ns->params.eui64) {
         eui64.hdr.nidt = NVME_NIDT_EUI64;
         eui64.hdr.nidl = NVME_NIDL_EUI64;
@@ -7798,6 +7810,11 @@ static bool nvme_check_params(NvmeCtrl *n, Error **errp)
     }
 
     if (n->pmr.dev) {
+        if (params->msix_exclusive_bar) {
+            error_setg(errp, "not enough BARs available to enable PMR");
+            return false;
+        }
+
         if (host_memory_backend_is_mapped(n->pmr.dev)) {
             error_setg(errp, "can't use already busy memdev: %s",
                        object_get_canonical_path_component(OBJECT(n->pmr.dev)));
@@ -8003,13 +8020,18 @@ static void nvme_init_pmr(NvmeCtrl *n, PCIDevice *pci_dev)
     memory_region_set_enabled(&n->pmr.dev->mr, false);
 }
 
-static uint64_t nvme_bar_size(unsigned total_queues, unsigned total_irqs,
-                              unsigned *msix_table_offset,
-                              unsigned *msix_pba_offset)
+static uint64_t nvme_mbar_size(unsigned total_queues, unsigned total_irqs,
+                               unsigned *msix_table_offset,
+                               unsigned *msix_pba_offset)
 {
-    uint64_t bar_size, msix_table_size, msix_pba_size;
+    uint64_t bar_size, msix_table_size;
 
     bar_size = sizeof(NvmeBar) + 2 * total_queues * NVME_DB_SIZE;
+
+    if (total_irqs == 0) {
+        goto out;
+    }
+
     bar_size = QEMU_ALIGN_UP(bar_size, 4 * KiB);
 
     if (msix_table_offset) {
@@ -8024,11 +8046,10 @@ static uint64_t nvme_bar_size(unsigned total_queues, unsigned total_irqs,
         *msix_pba_offset = bar_size;
     }
 
-    msix_pba_size = QEMU_ALIGN_UP(total_irqs, 64) / 8;
-    bar_size += msix_pba_size;
+    bar_size += QEMU_ALIGN_UP(total_irqs, 64) / 8;
 
-    bar_size = pow2ceil(bar_size);
-    return bar_size;
+out:
+    return pow2ceil(bar_size);
 }
 
 static void nvme_init_sriov(NvmeCtrl *n, PCIDevice *pci_dev, uint16_t offset)
@@ -8036,7 +8057,7 @@ static void nvme_init_sriov(NvmeCtrl *n, PCIDevice *pci_dev, uint16_t offset)
     uint16_t vf_dev_id = n->params.use_intel_id ?
                          PCI_DEVICE_ID_INTEL_NVME : PCI_DEVICE_ID_REDHAT_NVME;
     NvmePriCtrlCap *cap = &n->pri_ctrl_cap;
-    uint64_t bar_size = nvme_bar_size(le16_to_cpu(cap->vqfrsm),
+    uint64_t bar_size = nvme_mbar_size(le16_to_cpu(cap->vqfrsm),
                                       le16_to_cpu(cap->vifrsm),
                                       NULL, NULL);
 
@@ -8075,7 +8096,7 @@ static bool nvme_init_pci(NvmeCtrl *n, PCIDevice *pci_dev, Error **errp)
     ERRP_GUARD();
     uint8_t *pci_conf = pci_dev->config;
     uint64_t bar_size;
-    unsigned msix_table_offset, msix_pba_offset;
+    unsigned msix_table_offset = 0, msix_pba_offset = 0;
     int ret;
 
     pci_conf[PCI_INTERRUPT_PIN] = 1;
@@ -8097,24 +8118,38 @@ static bool nvme_init_pci(NvmeCtrl *n, PCIDevice *pci_dev, Error **errp)
         pcie_ari_init(pci_dev, 0x100);
     }
 
-    /* add one to max_ioqpairs to account for the admin queue pair */
-    bar_size = nvme_bar_size(n->params.max_ioqpairs + 1, n->params.msix_qsize,
-                             &msix_table_offset, &msix_pba_offset);
+    if (n->params.msix_exclusive_bar && !pci_is_vf(pci_dev)) {
+        bar_size = nvme_mbar_size(n->params.max_ioqpairs + 1, 0, NULL, NULL);
+        memory_region_init_io(&n->iomem, OBJECT(n), &nvme_mmio_ops, n, "nvme",
+                              bar_size);
+        pci_register_bar(pci_dev, 0, PCI_BASE_ADDRESS_SPACE_MEMORY |
+                         PCI_BASE_ADDRESS_MEM_TYPE_64, &n->iomem);
+        ret = msix_init_exclusive_bar(pci_dev, n->params.msix_qsize, 4, errp);
+    } else {
+        assert(n->params.msix_qsize >= 1);
 
-    memory_region_init(&n->bar0, OBJECT(n), "nvme-bar0", bar_size);
-    memory_region_init_io(&n->iomem, OBJECT(n), &nvme_mmio_ops, n, "nvme",
-                          msix_table_offset);
-    memory_region_add_subregion(&n->bar0, 0, &n->iomem);
+        /* add one to max_ioqpairs to account for the admin queue pair */
+        bar_size = nvme_mbar_size(n->params.max_ioqpairs + 1,
+                                  n->params.msix_qsize, &msix_table_offset,
+                                  &msix_pba_offset);
 
-    if (pci_is_vf(pci_dev)) {
-        pcie_sriov_vf_register_bar(pci_dev, 0, &n->bar0);
-    } else {
-        pci_register_bar(pci_dev, 0, PCI_BASE_ADDRESS_SPACE_MEMORY |
-                         PCI_BASE_ADDRESS_MEM_TYPE_64, &n->bar0);
+        memory_region_init(&n->bar0, OBJECT(n), "nvme-bar0", bar_size);
+        memory_region_init_io(&n->iomem, OBJECT(n), &nvme_mmio_ops, n, "nvme",
+                              msix_table_offset);
+        memory_region_add_subregion(&n->bar0, 0, &n->iomem);
+
+        if (pci_is_vf(pci_dev)) {
+            pcie_sriov_vf_register_bar(pci_dev, 0, &n->bar0);
+        } else {
+            pci_register_bar(pci_dev, 0, PCI_BASE_ADDRESS_SPACE_MEMORY |
+                             PCI_BASE_ADDRESS_MEM_TYPE_64, &n->bar0);
+        }
+
+        ret = msix_init(pci_dev, n->params.msix_qsize,
+                        &n->bar0, 0, msix_table_offset,
+                        &n->bar0, 0, msix_pba_offset, 0, errp);
     }
-    ret = msix_init(pci_dev, n->params.msix_qsize,
-                    &n->bar0, 0, msix_table_offset,
-                    &n->bar0, 0, msix_pba_offset, 0, errp);
+
     if (ret == -ENOTSUP) {
         /* report that msix is not supported, but do not error out */
         warn_report_err(*errp);
@@ -8309,9 +8344,15 @@ static void nvme_realize(PCIDevice *pci_dev, Error **errp)
     if (pci_is_vf(pci_dev)) {
         /*
          * VFs derive settings from the parent. PF's lifespan exceeds
-         * that of VF's, so it's safe to share params.serial.
+         * that of VF's.
          */
         memcpy(&n->params, &pn->params, sizeof(NvmeParams));
+
+        /*
+         * Set PF's serial value to a new string memory to prevent 'serial'
+         * property object release of PF when a VF is removed from the system.
+         */
+        n->params.serial = g_strdup(pn->params.serial);
         n->subsys = pn->subsys;
     }
 
@@ -8412,6 +8453,8 @@ static Property nvme_props[] = {
                       params.sriov_max_vi_per_vf, 0),
     DEFINE_PROP_UINT8("sriov_max_vq_per_vf", NvmeCtrl,
                       params.sriov_max_vq_per_vf, 0),
+    DEFINE_PROP_BOOL("msix-exclusive-bar", NvmeCtrl, params.msix_exclusive_bar,
+                     false),
     DEFINE_PROP_END_OF_LIST(),
 };
 
diff --git a/hw/nvme/meson.build b/hw/nvme/meson.build
index 1a6a2ca2f3..7d5caa53c2 100644
--- a/hw/nvme/meson.build
+++ b/hw/nvme/meson.build
@@ -1 +1 @@
-system_ss.add(when: 'CONFIG_NVME_PCI', if_true: files('ctrl.c', 'dif.c', 'ns.c', 'subsys.c'))
+system_ss.add(when: 'CONFIG_NVME_PCI', if_true: files('ctrl.c', 'dif.c', 'ns.c', 'subsys.c', 'nguid.c'))
\ No newline at end of file
diff --git a/hw/nvme/nguid.c b/hw/nvme/nguid.c
new file mode 100644
index 0000000000..829832bd9f
--- /dev/null
+++ b/hw/nvme/nguid.c
@@ -0,0 +1,187 @@
+/*
+ *  QEMU NVMe NGUID functions
+ *
+ * Copyright 2024 Google LLC
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * for more details.
+ */
+
+#include "qemu/osdep.h"
+#include "qapi/visitor.h"
+#include "qemu/ctype.h"
+#include "nvme.h"
+
+#define NGUID_SEPARATOR '-'
+
+#define NGUID_VALUE_AUTO "auto"
+
+#define NGUID_FMT              \
+    "%02hhx%02hhx%02hhx%02hhx" \
+    "%02hhx%02hhx%02hhx%02hhx" \
+    "%02hhx%02hhx%02hhx%02hhx" \
+    "%02hhx%02hhx%02hhx%02hhx"
+
+#define NGUID_STR_LEN (2 * NGUID_LEN + 1)
+
+bool nvme_nguid_is_null(const NvmeNGUID *nguid)
+{
+    static NvmeNGUID null_nguid;
+    return memcmp(nguid, &null_nguid, sizeof(NvmeNGUID)) == 0;
+}
+
+static void nvme_nguid_generate(NvmeNGUID *out)
+{
+    int i;
+    uint32_t x;
+
+    QEMU_BUILD_BUG_ON((NGUID_LEN % sizeof(x)) != 0);
+
+    for (i = 0; i < NGUID_LEN; i += sizeof(x)) {
+        x = g_random_int();
+        memcpy(&out->data[i], &x, sizeof(x));
+    }
+}
+
+/*
+ * The Linux Kernel typically prints the NGUID of an NVMe namespace using the
+ * same format as the UUID. For instance:
+ *
+ * $ cat /sys/class/block/nvme0n1/nguid
+ * e9accd3b-8390-4e13-167c-f0593437f57d
+ *
+ * When there is no UUID but there is NGUID the Kernel will print the NGUID as
+ * wwid and it won't use the UUID format:
+ *
+ * $ cat /sys/class/block/nvme0n1/wwid
+ * eui.e9accd3b83904e13167cf0593437f57d
+ *
+ * The NGUID has different fields compared to the UUID, so the grouping used in
+ * the UUID format has no relation with the 3 fields of the NGUID.
+ *
+ * This implementation won't expect a strict format as the UUID one and instead
+ * it will admit any string of hexadecimal digits. Byte groups could be created
+ * using the '-' separator. The number of bytes needs to be exactly 16 and the
+ * separator '-' has to be exactly in a byte boundary. The following are
+ * examples of accepted formats for the NGUID string:
+ *
+ * nguid="e9accd3b-8390-4e13-167c-f0593437f57d"
+ * nguid="e9accd3b83904e13167cf0593437f57d"
+ * nguid="FEDCBA9876543210-ABCDEF-0123456789"
+ */
+static bool nvme_nguid_is_valid(const char *str)
+{
+    int i;
+    int digit_count = 0;
+
+    for (i = 0; i < strlen(str); i++) {
+        const char c = str[i];
+        if (qemu_isxdigit(c)) {
+            digit_count++;
+            continue;
+        }
+        if (c == NGUID_SEPARATOR) {
+            /*
+             * We need to make sure the separator is in a byte boundary, the
+             * string does not start with the separator and they are not back to
+             * back "--".
+             */
+            if ((i > 0) && (str[i - 1] != NGUID_SEPARATOR) &&
+                (digit_count % 2) == 0) {
+                continue;
+            }
+        }
+        return false;
+    }
+    /*
+     * The string should have the correct byte length and not finish with the
+     * separator
+     */
+    return (digit_count == (2 * NGUID_LEN)) && (str[i - 1] != NGUID_SEPARATOR);
+}
+
+static int nvme_nguid_parse(const char *str, NvmeNGUID *nguid)
+{
+    uint8_t *id = &nguid->data[0];
+    int ret = 0;
+    int i;
+    const char *ptr = str;
+
+    if (!nvme_nguid_is_valid(str)) {
+        return -1;
+    }
+
+    for (i = 0; i < NGUID_LEN; i++) {
+        ret = sscanf(ptr, "%02hhx", &id[i]);
+        if (ret != 1) {
+            return -1;
+        }
+        ptr += 2;
+        if (*ptr == NGUID_SEPARATOR) {
+            ptr++;
+        }
+    }
+
+    return 0;
+}
+
+/*
+ * When converted back to string this implementation will use a raw hex number
+ * with no separators, for instance:
+ *
+ * "e9accd3b83904e13167cf0593437f57d"
+ */
+static void nvme_nguid_stringify(const NvmeNGUID *nguid, char *out)
+{
+    const uint8_t *id = &nguid->data[0];
+    snprintf(out, NGUID_STR_LEN, NGUID_FMT,
+             id[0], id[1], id[2], id[3], id[4], id[5], id[6], id[7],
+             id[8], id[9], id[10], id[11], id[12], id[13], id[14], id[15]);
+}
+
+static void get_nguid(Object *obj, Visitor *v, const char *name, void *opaque,
+                      Error **errp)
+{
+    Property *prop = opaque;
+    NvmeNGUID *nguid = object_field_prop_ptr(obj, prop);
+    char buffer[NGUID_STR_LEN];
+    char *p = buffer;
+
+    nvme_nguid_stringify(nguid, buffer);
+
+    visit_type_str(v, name, &p, errp);
+}
+
+static void set_nguid(Object *obj, Visitor *v, const char *name, void *opaque,
+                      Error **errp)
+{
+    Property *prop = opaque;
+    NvmeNGUID *nguid = object_field_prop_ptr(obj, prop);
+    char *str;
+
+    if (!visit_type_str(v, name, &str, errp)) {
+        return;
+    }
+
+    if (!strcmp(str, NGUID_VALUE_AUTO)) {
+        nvme_nguid_generate(nguid);
+    } else if (nvme_nguid_parse(str, nguid) < 0) {
+        error_set_from_qdev_prop_error(errp, EINVAL, obj, name, str);
+    }
+    g_free(str);
+}
+
+const PropertyInfo qdev_prop_nguid = {
+    .name  = "str",
+    .description =
+        "NGUID or \"" NGUID_VALUE_AUTO "\" for random value",
+    .get   = get_nguid,
+    .set   = set_nguid,
+};
diff --git a/hw/nvme/ns.c b/hw/nvme/ns.c
index 0eabcf5cf5..ea8db175db 100644
--- a/hw/nvme/ns.c
+++ b/hw/nvme/ns.c
@@ -89,6 +89,7 @@ static int nvme_ns_init(NvmeNamespace *ns, Error **errp)
     id_ns->mcl = cpu_to_le32(ns->params.mcl);
     id_ns->msrc = ns->params.msrc;
     id_ns->eui64 = cpu_to_be64(ns->params.eui64);
+    memcpy(&id_ns->nguid, &ns->params.nguid.data, sizeof(id_ns->nguid));
 
     ds = 31 - clz32(ns->blkconf.logical_block_size);
     ms = ns->params.ms;
@@ -797,6 +798,7 @@ static Property nvme_ns_props[] = {
     DEFINE_PROP_BOOL("shared", NvmeNamespace, params.shared, true),
     DEFINE_PROP_UINT32("nsid", NvmeNamespace, params.nsid, 0),
     DEFINE_PROP_UUID_NODEFAULT("uuid", NvmeNamespace, params.uuid),
+    DEFINE_PROP_NGUID_NODEFAULT("nguid", NvmeNamespace, params.nguid),
     DEFINE_PROP_UINT64("eui64", NvmeNamespace, params.eui64, 0),
     DEFINE_PROP_UINT16("ms", NvmeNamespace, params.ms, 0),
     DEFINE_PROP_UINT8("mset", NvmeNamespace, params.mset, 0),
diff --git a/hw/nvme/nvme.h b/hw/nvme/nvme.h
index 5f2ae7b28b..bed8191bd5 100644
--- a/hw/nvme/nvme.h
+++ b/hw/nvme/nvme.h
@@ -171,13 +171,27 @@ static const uint8_t nvme_fdp_evf_shifts[FDP_EVT_MAX] = {
     [FDP_EVT_RUH_IMPLICIT_RU_CHANGE]    = 33,
 };
 
+#define NGUID_LEN 16
+
+typedef struct {
+    uint8_t data[NGUID_LEN];
+} NvmeNGUID;
+
+bool nvme_nguid_is_null(const NvmeNGUID *nguid);
+
+extern const PropertyInfo qdev_prop_nguid;
+
+#define DEFINE_PROP_NGUID_NODEFAULT(_name, _state, _field) \
+    DEFINE_PROP(_name, _state, _field, qdev_prop_nguid, NvmeNGUID)
+
 typedef struct NvmeNamespaceParams {
-    bool     detached;
-    bool     shared;
-    uint32_t nsid;
-    QemuUUID uuid;
-    uint64_t eui64;
-    bool     eui64_default;
+    bool      detached;
+    bool      shared;
+    uint32_t  nsid;
+    QemuUUID  uuid;
+    NvmeNGUID nguid;
+    uint64_t  eui64;
+    bool      eui64_default;
 
     uint16_t ms;
     uint8_t  mset;
@@ -522,6 +536,7 @@ typedef struct NvmeParams {
     uint16_t sriov_vi_flexible;
     uint8_t  sriov_max_vq_per_vf;
     uint8_t  sriov_max_vi_per_vf;
+    bool     msix_exclusive_bar;
 } NvmeParams;
 
 typedef struct NvmeCtrl {
diff --git a/hw/pci-bridge/cxl_root_port.c b/hw/pci-bridge/cxl_root_port.c
index 62f96994eb..8a30da602c 100644
--- a/hw/pci-bridge/cxl_root_port.c
+++ b/hw/pci-bridge/cxl_root_port.c
@@ -175,7 +175,7 @@ static void cxl_rp_realize(DeviceState *dev, Error **errp)
 
     cxl_cstate->dvsec_offset = CXL_ROOT_PORT_DVSEC_OFFSET;
     cxl_cstate->pdev = pci_dev;
-    build_dvsecs(&crp->cxl_cstate);
+    build_dvsecs(cxl_cstate);
 
     cxl_component_register_block_init(OBJECT(pci_dev), cxl_cstate,
                                       TYPE_CXL_ROOT_PORT);
diff --git a/hw/pci-bridge/cxl_upstream.c b/hw/pci-bridge/cxl_upstream.c
index 537f9affb8..783fa6adac 100644
--- a/hw/pci-bridge/cxl_upstream.c
+++ b/hw/pci-bridge/cxl_upstream.c
@@ -289,6 +289,7 @@ static void free_default_cdat_table(CDATSubHeader **cdat_table, int num,
 
 static void cxl_usp_realize(PCIDevice *d, Error **errp)
 {
+    ERRP_GUARD();
     PCIEPort *p = PCIE_PORT(d);
     CXLUpstreamPort *usp = CXL_USP(d);
     CXLComponentState *cxl_cstate = &usp->cxl_cstate;
diff --git a/hw/ppc/mpc8544_guts.c b/hw/ppc/mpc8544_guts.c
index a26e83d048..e3540b0281 100644
--- a/hw/ppc/mpc8544_guts.c
+++ b/hw/ppc/mpc8544_guts.c
@@ -71,8 +71,7 @@ static uint64_t mpc8544_guts_read(void *opaque, hwaddr addr,
                                   unsigned size)
 {
     uint32_t value = 0;
-    PowerPCCPU *cpu = POWERPC_CPU(current_cpu);
-    CPUPPCState *env = &cpu->env;
+    CPUPPCState *env = cpu_env(current_cpu);
 
     addr &= MPC8544_GUTS_MMIO_SIZE - 1;
     switch (addr) {
diff --git a/hw/ppc/pnv.c b/hw/ppc/pnv.c
index 6fad628d9f..6e3a5ccdec 100644
--- a/hw/ppc/pnv.c
+++ b/hw/ppc/pnv.c
@@ -1376,11 +1376,11 @@ static void pnv_chip_power8_realize(DeviceState *dev, Error **errp)
     }
 
     /* Processor Service Interface (PSI) Host Bridge */
-    object_property_set_int(OBJECT(&chip8->psi), "bar", PNV_PSIHB_BASE(chip),
+    object_property_set_int(OBJECT(psi8), "bar", PNV_PSIHB_BASE(chip),
                             &error_fatal);
-    object_property_set_link(OBJECT(&chip8->psi), ICS_PROP_XICS,
+    object_property_set_link(OBJECT(psi8), ICS_PROP_XICS,
                              OBJECT(chip8->xics), &error_abort);
-    if (!qdev_realize(DEVICE(&chip8->psi), NULL, errp)) {
+    if (!qdev_realize(DEVICE(psi8), NULL, errp)) {
         return;
     }
     pnv_xscom_add_subregion(chip, PNV_XSCOM_PSIHB_BASE,
@@ -1411,7 +1411,7 @@ static void pnv_chip_power8_realize(DeviceState *dev, Error **errp)
     }
     pnv_xscom_add_subregion(chip, PNV_XSCOM_OCC_BASE, &chip8->occ.xscom_regs);
     qdev_connect_gpio_out(DEVICE(&chip8->occ), 0,
-                          qdev_get_gpio_in(DEVICE(&chip8->psi), PSIHB_IRQ_OCC));
+                          qdev_get_gpio_in(DEVICE(psi8), PSIHB_IRQ_OCC));
 
     /* OCC SRAM model */
     memory_region_add_subregion(get_system_memory(), PNV_OCC_SENSOR_BASE(chip),
@@ -1664,12 +1664,12 @@ static void pnv_chip_power9_realize(DeviceState *dev, Error **errp)
                             &chip9->xive.xscom_regs);
 
     /* Processor Service Interface (PSI) Host Bridge */
-    object_property_set_int(OBJECT(&chip9->psi), "bar", PNV9_PSIHB_BASE(chip),
+    object_property_set_int(OBJECT(psi9), "bar", PNV9_PSIHB_BASE(chip),
                             &error_fatal);
     /* This is the only device with 4k ESB pages */
-    object_property_set_int(OBJECT(&chip9->psi), "shift", XIVE_ESB_4K,
+    object_property_set_int(OBJECT(psi9), "shift", XIVE_ESB_4K,
                             &error_fatal);
-    if (!qdev_realize(DEVICE(&chip9->psi), NULL, errp)) {
+    if (!qdev_realize(DEVICE(psi9), NULL, errp)) {
         return;
     }
     pnv_xscom_add_subregion(chip, PNV9_XSCOM_PSIHB_BASE,
@@ -1705,7 +1705,7 @@ static void pnv_chip_power9_realize(DeviceState *dev, Error **errp)
     }
     pnv_xscom_add_subregion(chip, PNV9_XSCOM_OCC_BASE, &chip9->occ.xscom_regs);
     qdev_connect_gpio_out(DEVICE(&chip9->occ), 0, qdev_get_gpio_in(
-                              DEVICE(&chip9->psi), PSIHB9_IRQ_OCC));
+                              DEVICE(psi9), PSIHB9_IRQ_OCC));
 
     /* OCC SRAM model */
     memory_region_add_subregion(get_system_memory(), PNV9_OCC_SENSOR_BASE(chip),
@@ -1720,7 +1720,7 @@ static void pnv_chip_power9_realize(DeviceState *dev, Error **errp)
     pnv_xscom_add_subregion(chip, PNV9_XSCOM_SBE_MBOX_BASE,
                             &chip9->sbe.xscom_mbox_regs);
     qdev_connect_gpio_out(DEVICE(&chip9->sbe), 0, qdev_get_gpio_in(
-                              DEVICE(&chip9->psi), PSIHB9_IRQ_PSU));
+                              DEVICE(psi9), PSIHB9_IRQ_PSU));
 
     /* HOMER */
     object_property_set_link(OBJECT(&chip9->homer), "chip", OBJECT(chip),
@@ -1761,7 +1761,7 @@ static void pnv_chip_power9_realize(DeviceState *dev, Error **errp)
                                         PNV9_XSCOM_I2CM_SIZE,
                                 &chip9->i2c[i].xscom_regs);
         qdev_connect_gpio_out(DEVICE(&chip9->i2c[i]), 0,
-                              qdev_get_gpio_in(DEVICE(&chip9->psi),
+                              qdev_get_gpio_in(DEVICE(psi9),
                                                PSIHB9_IRQ_SBE_I2C));
     }
 }
@@ -2523,8 +2523,7 @@ static void pnv_machine_set_hb(Object *obj, bool value, Error **errp)
 
 static void pnv_cpu_do_nmi_on_cpu(CPUState *cs, run_on_cpu_data arg)
 {
-    PowerPCCPU *cpu = POWERPC_CPU(cs);
-    CPUPPCState *env = &cpu->env;
+    CPUPPCState *env = cpu_env(cs);
 
     cpu_synchronize_state(cs);
     ppc_cpu_do_system_reset(cs);
diff --git a/hw/ppc/pnv_xscom.c b/hw/ppc/pnv_xscom.c
index 805b1d0c87..a17816d072 100644
--- a/hw/ppc/pnv_xscom.c
+++ b/hw/ppc/pnv_xscom.c
@@ -44,15 +44,12 @@ static void xscom_complete(CPUState *cs, uint64_t hmer_bits)
      * passed for the cpu, and no CPU completion is generated.
      */
     if (cs) {
-        PowerPCCPU *cpu = POWERPC_CPU(cs);
-        CPUPPCState *env = &cpu->env;
-
         /*
          * TODO: Need a CPU helper to set HMER, also handle generation
          * of HMIs
          */
         cpu_synchronize_state(cs);
-        env->spr[SPR_HMER] |= hmer_bits;
+        cpu_env(cs)->spr[SPR_HMER] |= hmer_bits;
     }
 }
 
diff --git a/hw/ppc/ppce500_spin.c b/hw/ppc/ppce500_spin.c
index bbce63e8a4..dfbe759481 100644
--- a/hw/ppc/ppce500_spin.c
+++ b/hw/ppc/ppce500_spin.c
@@ -90,8 +90,7 @@ static void mmubooke_create_initial_mapping(CPUPPCState *env,
 
 static void spin_kick(CPUState *cs, run_on_cpu_data data)
 {
-    PowerPCCPU *cpu = POWERPC_CPU(cs);
-    CPUPPCState *env = &cpu->env;
+    CPUPPCState *env = cpu_env(cs);
     SpinInfo *curspin = data.host_ptr;
     hwaddr map_size = 64 * MiB;
     hwaddr map_start;
diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c
index 99d3fcb185..c417f9dd52 100644
--- a/hw/ppc/spapr.c
+++ b/hw/ppc/spapr.c
@@ -3510,8 +3510,7 @@ static void spapr_machine_finalizefn(Object *obj)
 void spapr_do_system_reset_on_cpu(CPUState *cs, run_on_cpu_data arg)
 {
     SpaprMachineState *spapr = SPAPR_MACHINE(qdev_get_machine());
-    PowerPCCPU *cpu = POWERPC_CPU(cs);
-    CPUPPCState *env = &cpu->env;
+    CPUPPCState *env = cpu_env(cs);
 
     cpu_synchronize_state(cs);
     /* If FWNMI is inactive, addr will be -1, which will deliver to 0x100 */
@@ -4008,7 +4007,6 @@ static void spapr_core_plug(HotplugHandler *hotplug_dev, DeviceState *dev)
     SpaprMachineClass *smc = SPAPR_MACHINE_CLASS(mc);
     SpaprCpuCore *core = SPAPR_CPU_CORE(OBJECT(dev));
     CPUCore *cc = CPU_CORE(dev);
-    CPUState *cs;
     SpaprDrc *drc;
     CPUArchId *core_slot;
     int index;
@@ -4042,7 +4040,7 @@ static void spapr_core_plug(HotplugHandler *hotplug_dev, DeviceState *dev)
         }
     }
 
-    core_slot->cpu = OBJECT(dev);
+    core_slot->cpu = CPU(dev);
 
     /*
      * Set compatibility mode to match the boot CPU, which was either set
@@ -4058,7 +4056,7 @@ static void spapr_core_plug(HotplugHandler *hotplug_dev, DeviceState *dev)
 
     if (smc->pre_2_10_has_unused_icps) {
         for (i = 0; i < cc->nr_threads; i++) {
-            cs = CPU(core->threads[i]);
+            CPUState *cs = CPU(core->threads[i]);
             pre_2_10_vmstate_unregister_dummy_icp(cs->cpu_index);
         }
     }
diff --git a/hw/ppc/spapr_caps.c b/hw/ppc/spapr_caps.c
index 62abf1ba9d..0a15415a1d 100644
--- a/hw/ppc/spapr_caps.c
+++ b/hw/ppc/spapr_caps.c
@@ -194,8 +194,7 @@ static void cap_htm_apply(SpaprMachineState *spapr, uint8_t val, Error **errp)
 static void cap_vsx_apply(SpaprMachineState *spapr, uint8_t val, Error **errp)
 {
     ERRP_GUARD();
-    PowerPCCPU *cpu = POWERPC_CPU(first_cpu);
-    CPUPPCState *env = &cpu->env;
+    CPUPPCState *env = cpu_env(first_cpu);
 
     if (!val) {
         /* TODO: We don't support disabling vsx yet */
@@ -213,14 +212,12 @@ static void cap_vsx_apply(SpaprMachineState *spapr, uint8_t val, Error **errp)
 static void cap_dfp_apply(SpaprMachineState *spapr, uint8_t val, Error **errp)
 {
     ERRP_GUARD();
-    PowerPCCPU *cpu = POWERPC_CPU(first_cpu);
-    CPUPPCState *env = &cpu->env;
 
     if (!val) {
         /* TODO: We don't support disabling dfp yet */
         return;
     }
-    if (!(env->insns_flags2 & PPC2_DFP)) {
+    if (!(cpu_env(first_cpu)->insns_flags2 & PPC2_DFP)) {
         error_setg(errp, "DFP support not available");
         error_append_hint(errp, "Try appending -machine cap-dfp=off\n");
     }
diff --git a/hw/s390x/s390-virtio-ccw.c b/hw/s390x/s390-virtio-ccw.c
index 62804cc228..b1dcb3857f 100644
--- a/hw/s390x/s390-virtio-ccw.c
+++ b/hw/s390x/s390-virtio-ccw.c
@@ -312,12 +312,12 @@ static void ccw_init(MachineState *machine)
 static void s390_cpu_plug(HotplugHandler *hotplug_dev,
                         DeviceState *dev, Error **errp)
 {
+    ERRP_GUARD();
     MachineState *ms = MACHINE(hotplug_dev);
     S390CPU *cpu = S390_CPU(dev);
-    ERRP_GUARD();
 
     g_assert(!ms->possible_cpus->cpus[cpu->env.core_id].cpu);
-    ms->possible_cpus->cpus[cpu->env.core_id].cpu = OBJECT(dev);
+    ms->possible_cpus->cpus[cpu->env.core_id].cpu = CPU(dev);
 
     if (s390_has_topology()) {
         s390_topology_setup_cpu(ms, cpu, errp);
diff --git a/hw/scsi/vhost-scsi.c b/hw/scsi/vhost-scsi.c
index 58a00336c2..ae26bc19a4 100644
--- a/hw/scsi/vhost-scsi.c
+++ b/hw/scsi/vhost-scsi.c
@@ -220,6 +220,7 @@ static int vhost_scsi_set_workers(VHostSCSICommon *vsc, bool per_virtqueue)
 
 static void vhost_scsi_realize(DeviceState *dev, Error **errp)
 {
+    ERRP_GUARD();
     VirtIOSCSICommon *vs = VIRTIO_SCSI_COMMON(dev);
     VHostSCSICommon *vsc = VHOST_SCSI_COMMON(dev);
     Error *err = NULL;
diff --git a/hw/vfio/ap.c b/hw/vfio/ap.c
index e157aa1ff7..7c4caa5938 100644
--- a/hw/vfio/ap.c
+++ b/hw/vfio/ap.c
@@ -155,6 +155,7 @@ static void vfio_ap_unregister_irq_notifier(VFIOAPDevice *vapdev,
 
 static void vfio_ap_realize(DeviceState *dev, Error **errp)
 {
+    ERRP_GUARD();
     int ret;
     Error *err = NULL;
     VFIOAPDevice *vapdev = VFIO_AP_DEVICE(dev);
diff --git a/hw/vfio/container.c b/hw/vfio/container.c
index 9a775e4efc..77bdec276e 100644
--- a/hw/vfio/container.c
+++ b/hw/vfio/container.c
@@ -727,6 +727,7 @@ static void vfio_disconnect_container(VFIOGroup *group)
 
 static VFIOGroup *vfio_get_group(int groupid, AddressSpace *as, Error **errp)
 {
+    ERRP_GUARD();
     VFIOGroup *group;
     char path[32];
     struct vfio_group_status status = { .argsz = sizeof(status) };
diff --git a/hw/vfio/helpers.c b/hw/vfio/helpers.c
index 6789870802..47b4096c05 100644
--- a/hw/vfio/helpers.c
+++ b/hw/vfio/helpers.c
@@ -110,6 +110,7 @@ static const char *index_to_str(VFIODevice *vbasedev, int index)
 int vfio_set_irq_signaling(VFIODevice *vbasedev, int index, int subindex,
                            int action, int fd, Error **errp)
 {
+    ERRP_GUARD();
     struct vfio_irq_set *irq_set;
     int argsz, ret = 0;
     const char *name;
@@ -613,6 +614,7 @@ bool vfio_has_region_cap(VFIODevice *vbasedev, int region, uint16_t cap_type)
 
 int vfio_device_get_name(VFIODevice *vbasedev, Error **errp)
 {
+    ERRP_GUARD();
     struct stat st;
 
     if (vbasedev->fd < 0) {
@@ -644,6 +646,7 @@ int vfio_device_get_name(VFIODevice *vbasedev, Error **errp)
 
 void vfio_device_set_fd(VFIODevice *vbasedev, const char *str, Error **errp)
 {
+    ERRP_GUARD();
     int fd = monitor_fd_param(monitor_cur(), str, errp);
 
     if (fd < 0) {
diff --git a/hw/vfio/iommufd.c b/hw/vfio/iommufd.c
index e1be224494..bafddb8f5a 100644
--- a/hw/vfio/iommufd.c
+++ b/hw/vfio/iommufd.c
@@ -116,6 +116,7 @@ static void iommufd_cdev_unbind_and_disconnect(VFIODevice *vbasedev)
 
 static int iommufd_cdev_getfd(const char *sysfs_path, Error **errp)
 {
+    ERRP_GUARD();
     long int ret = -ENOTTY;
     char *path, *vfio_dev_path = NULL, *vfio_path = NULL;
     DIR *dir = NULL;
diff --git a/hw/vfio/pci-quirks.c b/hw/vfio/pci-quirks.c
index 84b1a7b948..496fd1ee86 100644
--- a/hw/vfio/pci-quirks.c
+++ b/hw/vfio/pci-quirks.c
@@ -1538,6 +1538,7 @@ static bool is_valid_std_cap_offset(uint8_t pos)
 
 static int vfio_add_nv_gpudirect_cap(VFIOPCIDevice *vdev, Error **errp)
 {
+    ERRP_GUARD();
     PCIDevice *pdev = &vdev->pdev;
     int ret, pos;
     bool c8_conflict = false, d4_conflict = false;
@@ -1630,6 +1631,7 @@ static int vfio_add_nv_gpudirect_cap(VFIOPCIDevice *vdev, Error **errp)
 #define VMD_SHADOW_CAP_LEN 24
 static int vfio_add_vmd_shadow_cap(VFIOPCIDevice *vdev, Error **errp)
 {
+    ERRP_GUARD();
     uint8_t membar_phys[16];
     int ret, pos = 0xE8;
 
diff --git a/hw/vfio/pci.c b/hw/vfio/pci.c
index a1522a011a..64780d1b79 100644
--- a/hw/vfio/pci.c
+++ b/hw/vfio/pci.c
@@ -2136,6 +2136,7 @@ static void vfio_check_af_flr(VFIOPCIDevice *vdev, uint8_t pos)
 
 static int vfio_add_std_cap(VFIOPCIDevice *vdev, uint8_t pos, Error **errp)
 {
+    ERRP_GUARD();
     PCIDevice *pdev = &vdev->pdev;
     uint8_t cap_id, next, size;
     int ret;
@@ -2942,6 +2943,7 @@ static void vfio_unregister_req_notifier(VFIOPCIDevice *vdev)
 
 static void vfio_realize(PCIDevice *pdev, Error **errp)
 {
+    ERRP_GUARD();
     VFIOPCIDevice *vdev = VFIO_PCI(pdev);
     VFIODevice *vbasedev = &vdev->vbasedev;
     char *tmp, *subsys;
diff --git a/hw/vfio/platform.c b/hw/vfio/platform.c
index a8d9b7da63..dcd2365fb3 100644
--- a/hw/vfio/platform.c
+++ b/hw/vfio/platform.c
@@ -576,6 +576,7 @@ static int vfio_base_device_init(VFIODevice *vbasedev, Error **errp)
  */
 static void vfio_platform_realize(DeviceState *dev, Error **errp)
 {
+    ERRP_GUARD();
     VFIOPlatformDevice *vdev = VFIO_PLATFORM_DEVICE(dev);
     SysBusDevice *sbdev = SYS_BUS_DEVICE(dev);
     VFIODevice *vbasedev = &vdev->vbasedev;
diff --git a/hw/virtio/vhost-user-scmi.c b/hw/virtio/vhost-user-scmi.c
index 918bb7dcf7..300847e672 100644
--- a/hw/virtio/vhost-user-scmi.c
+++ b/hw/virtio/vhost-user-scmi.c
@@ -56,9 +56,9 @@ static int vu_scmi_start(VirtIODevice *vdev)
         goto err_host_notifiers;
     }
 
-    vhost_ack_features(&scmi->vhost_dev, feature_bits, vdev->guest_features);
+    vhost_ack_features(vhost_dev, feature_bits, vdev->guest_features);
 
-    ret = vhost_dev_start(&scmi->vhost_dev, vdev, true);
+    ret = vhost_dev_start(vhost_dev, vdev, true);
     if (ret < 0) {
         error_report("Error starting vhost-user-scmi: %d", ret);
         goto err_guest_notifiers;
@@ -71,7 +71,7 @@ static int vu_scmi_start(VirtIODevice *vdev)
      * enabling/disabling irqfd.
      */
     for (i = 0; i < scmi->vhost_dev.nvqs; i++) {
-        vhost_virtqueue_mask(&scmi->vhost_dev, vdev, i, false);
+        vhost_virtqueue_mask(vhost_dev, vdev, i, false);
     }
     return 0;
 
diff --git a/hw/virtio/vhost-vsock.c b/hw/virtio/vhost-vsock.c
index d5ca0b5a10..3d4a5a97f4 100644
--- a/hw/virtio/vhost-vsock.c
+++ b/hw/virtio/vhost-vsock.c
@@ -121,6 +121,7 @@ static const VMStateDescription vmstate_virtio_vhost_vsock = {
 
 static void vhost_vsock_device_realize(DeviceState *dev, Error **errp)
 {
+    ERRP_GUARD();
     VHostVSockCommon *vvc = VHOST_VSOCK_COMMON(dev);
     VirtIODevice *vdev = VIRTIO_DEVICE(dev);
     VHostVSock *vsock = VHOST_VSOCK(dev);
diff --git a/hw/virtio/vhost.c b/hw/virtio/vhost.c
index 2c9ac79468..2e4e040db8 100644
--- a/hw/virtio/vhost.c
+++ b/hw/virtio/vhost.c
@@ -2199,6 +2199,7 @@ int vhost_check_device_state(struct vhost_dev *dev, Error **errp)
 
 int vhost_save_backend_state(struct vhost_dev *dev, QEMUFile *f, Error **errp)
 {
+    ERRP_GUARD();
     /* Maximum chunk size in which to transfer the state */
     const size_t chunk_size = 1 * 1024 * 1024;
     g_autofree void *transfer_buf = NULL;
@@ -2291,6 +2292,7 @@ fail:
 
 int vhost_load_backend_state(struct vhost_dev *dev, QEMUFile *f, Error **errp)
 {
+    ERRP_GUARD();
     size_t transfer_buf_size = 0;
     g_autofree void *transfer_buf = NULL;
     g_autoptr(GError) g_err = NULL;
diff --git a/hw/virtio/virtio-pci.c b/hw/virtio/virtio-pci.c
index 1a7039fb0c..cb6940fc0e 100644
--- a/hw/virtio/virtio-pci.c
+++ b/hw/virtio/virtio-pci.c
@@ -1929,7 +1929,7 @@ static void virtio_pci_device_plugged(DeviceState *d, Error **errp)
     bool modern_pio = proxy->flags & VIRTIO_PCI_FLAG_MODERN_PIO_NOTIFY;
     uint8_t *config;
     uint32_t size;
-    VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus);
+    VirtIODevice *vdev = virtio_bus_get_device(bus);
 
     /*
      * Virtio capabilities present without
diff --git a/hw/xen/xen-mapcache.c b/hw/xen/xen-mapcache.c
index 4f956d048e..7f59080ba7 100644
--- a/hw/xen/xen-mapcache.c
+++ b/hw/xen/xen-mapcache.c
@@ -476,11 +476,37 @@ static void xen_invalidate_map_cache_entry_unlocked(uint8_t *buffer)
     g_free(entry);
 }
 
-void xen_invalidate_map_cache_entry(uint8_t *buffer)
+typedef struct XenMapCacheData {
+    Coroutine *co;
+    uint8_t *buffer;
+} XenMapCacheData;
+
+static void xen_invalidate_map_cache_entry_bh(void *opaque)
 {
+    XenMapCacheData *data = opaque;
+
     mapcache_lock();
-    xen_invalidate_map_cache_entry_unlocked(buffer);
+    xen_invalidate_map_cache_entry_unlocked(data->buffer);
     mapcache_unlock();
+
+    aio_co_wake(data->co);
+}
+
+void coroutine_mixed_fn xen_invalidate_map_cache_entry(uint8_t *buffer)
+{
+    if (qemu_in_coroutine()) {
+        XenMapCacheData data = {
+            .co = qemu_coroutine_self(),
+            .buffer = buffer,
+        };
+        aio_bh_schedule_oneshot(qemu_get_current_aio_context(),
+                                xen_invalidate_map_cache_entry_bh, &data);
+        qemu_coroutine_yield();
+    } else {
+        mapcache_lock();
+        xen_invalidate_map_cache_entry_unlocked(buffer);
+        mapcache_unlock();
+    }
 }
 
 void xen_invalidate_map_cache(void)
diff --git a/hw/xen/xen_pt.c b/hw/xen/xen_pt.c
index a8edabdabc..3635d1b39f 100644
--- a/hw/xen/xen_pt.c
+++ b/hw/xen/xen_pt.c
@@ -711,7 +711,7 @@ static void xen_pt_destroy(PCIDevice *d) {
     uint8_t intx;
     int rc;
 
-    if (machine_irq && !xen_host_pci_device_closed(&s->real_device)) {
+    if (machine_irq && !xen_host_pci_device_closed(host_dev)) {
         intx = xen_pt_pci_intx(s);
         rc = xc_domain_unbind_pt_irq(xen_xc, xen_domid, machine_irq,
                                      PT_IRQ_TYPE_PCI,
@@ -760,8 +760,8 @@ static void xen_pt_destroy(PCIDevice *d) {
         memory_listener_unregister(&s->io_listener);
         s->listener_set = false;
     }
-    if (!xen_host_pci_device_closed(&s->real_device)) {
-        xen_host_pci_device_put(&s->real_device);
+    if (!xen_host_pci_device_closed(host_dev)) {
+        xen_host_pci_device_put(host_dev);
     }
 }
 /* init */
diff --git a/hw/xen/xen_pt_config_init.c b/hw/xen/xen_pt_config_init.c
index ba4cd78238..3edaeab1e3 100644
--- a/hw/xen/xen_pt_config_init.c
+++ b/hw/xen/xen_pt_config_init.c
@@ -292,7 +292,10 @@ static int xen_pt_header_type_reg_init(XenPCIPassthroughState *s,
                                        uint32_t *data)
 {
     /* read PCI_HEADER_TYPE */
-    *data = reg->init_val | 0x80;
+    *data = reg->init_val;
+    if ((PCI_DEVICE(s)->cap_present & QEMU_PCI_CAP_MULTIFUNCTION)) {
+        *data |= PCI_HEADER_TYPE_MULTI_FUNCTION;
+    }
     return 0;
 }
 
@@ -677,7 +680,7 @@ static XenPTRegInfo xen_pt_emu_reg_header0[] = {
         .size       = 1,
         .init_val   = 0x00,
         .ro_mask    = 0xFF,
-        .emu_mask   = 0x00,
+        .emu_mask   = PCI_HEADER_TYPE_MULTI_FUNCTION,
         .init       = xen_pt_header_type_reg_init,
         .u.b.read   = xen_pt_byte_reg_read,
         .u.b.write  = xen_pt_byte_reg_write,