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-rw-r--r--hw/i386/acpi-build.c206
-rw-r--r--hw/i386/intel_iommu.c114
-rw-r--r--hw/i386/intel_iommu_internal.h13
-rw-r--r--hw/i386/x86-iommu.c17
4 files changed, 171 insertions, 179 deletions
diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c
index 42ecf619d5..0c8912fd86 100644
--- a/hw/i386/acpi-build.c
+++ b/hw/i386/acpi-build.c
@@ -101,8 +101,6 @@ typedef struct AcpiPmInfo {
uint32_t gpe0_blk_len;
uint32_t io_base;
uint16_t cpu_hp_io_base;
- uint16_t mem_hp_io_base;
- uint16_t mem_hp_io_len;
uint16_t pcihp_io_base;
uint16_t pcihp_io_len;
} AcpiPmInfo;
@@ -148,9 +146,6 @@ static void acpi_get_pm_info(AcpiPmInfo *pm)
}
assert(obj);
- pm->mem_hp_io_base = ACPI_MEMORY_HOTPLUG_BASE;
- pm->mem_hp_io_len = ACPI_MEMORY_HOTPLUG_IO_LEN;
-
/* Fill in optional s3/s4 related properties */
o = object_property_get_qobject(obj, ACPI_PM_PROP_S3_DISABLED, NULL);
if (o) {
@@ -1038,130 +1033,6 @@ static Aml *build_crs(PCIHostState *host, CrsRangeSet *range_set)
return crs;
}
-static void build_memory_devices(Aml *sb_scope, int nr_mem,
- uint16_t io_base, uint16_t io_len)
-{
- int i;
- Aml *scope;
- Aml *crs;
- Aml *field;
- Aml *dev;
- Aml *method;
- Aml *ifctx;
-
- /* build memory devices */
- assert(nr_mem <= ACPI_MAX_RAM_SLOTS);
- scope = aml_scope("\\_SB.PCI0." MEMORY_HOTPLUG_DEVICE);
- aml_append(scope,
- aml_name_decl(MEMORY_SLOTS_NUMBER, aml_int(nr_mem))
- );
-
- crs = aml_resource_template();
- aml_append(crs,
- aml_io(AML_DECODE16, io_base, io_base, 0, io_len)
- );
- aml_append(scope, aml_name_decl("_CRS", crs));
-
- aml_append(scope, aml_operation_region(
- MEMORY_HOTPLUG_IO_REGION, AML_SYSTEM_IO,
- aml_int(io_base), io_len)
- );
-
- field = aml_field(MEMORY_HOTPLUG_IO_REGION, AML_DWORD_ACC,
- AML_NOLOCK, AML_PRESERVE);
- aml_append(field, /* read only */
- aml_named_field(MEMORY_SLOT_ADDR_LOW, 32));
- aml_append(field, /* read only */
- aml_named_field(MEMORY_SLOT_ADDR_HIGH, 32));
- aml_append(field, /* read only */
- aml_named_field(MEMORY_SLOT_SIZE_LOW, 32));
- aml_append(field, /* read only */
- aml_named_field(MEMORY_SLOT_SIZE_HIGH, 32));
- aml_append(field, /* read only */
- aml_named_field(MEMORY_SLOT_PROXIMITY, 32));
- aml_append(scope, field);
-
- field = aml_field(MEMORY_HOTPLUG_IO_REGION, AML_BYTE_ACC,
- AML_NOLOCK, AML_WRITE_AS_ZEROS);
- aml_append(field, aml_reserved_field(160 /* bits, Offset(20) */));
- aml_append(field, /* 1 if enabled, read only */
- aml_named_field(MEMORY_SLOT_ENABLED, 1));
- aml_append(field,
- /*(read) 1 if has a insert event. (write) 1 to clear event */
- aml_named_field(MEMORY_SLOT_INSERT_EVENT, 1));
- aml_append(field,
- /* (read) 1 if has a remove event. (write) 1 to clear event */
- aml_named_field(MEMORY_SLOT_REMOVE_EVENT, 1));
- aml_append(field,
- /* initiates device eject, write only */
- aml_named_field(MEMORY_SLOT_EJECT, 1));
- aml_append(scope, field);
-
- field = aml_field(MEMORY_HOTPLUG_IO_REGION, AML_DWORD_ACC,
- AML_NOLOCK, AML_PRESERVE);
- aml_append(field, /* DIMM selector, write only */
- aml_named_field(MEMORY_SLOT_SLECTOR, 32));
- aml_append(field, /* _OST event code, write only */
- aml_named_field(MEMORY_SLOT_OST_EVENT, 32));
- aml_append(field, /* _OST status code, write only */
- aml_named_field(MEMORY_SLOT_OST_STATUS, 32));
- aml_append(scope, field);
- aml_append(sb_scope, scope);
-
- for (i = 0; i < nr_mem; i++) {
- #define BASEPATH "\\_SB.PCI0." MEMORY_HOTPLUG_DEVICE "."
- const char *s;
-
- dev = aml_device("MP%02X", i);
- aml_append(dev, aml_name_decl("_UID", aml_string("0x%02X", i)));
- aml_append(dev, aml_name_decl("_HID", aml_eisaid("PNP0C80")));
-
- method = aml_method("_CRS", 0, AML_NOTSERIALIZED);
- s = BASEPATH MEMORY_SLOT_CRS_METHOD;
- aml_append(method, aml_return(aml_call1(s, aml_name("_UID"))));
- aml_append(dev, method);
-
- method = aml_method("_STA", 0, AML_NOTSERIALIZED);
- s = BASEPATH MEMORY_SLOT_STATUS_METHOD;
- aml_append(method, aml_return(aml_call1(s, aml_name("_UID"))));
- aml_append(dev, method);
-
- method = aml_method("_PXM", 0, AML_NOTSERIALIZED);
- s = BASEPATH MEMORY_SLOT_PROXIMITY_METHOD;
- aml_append(method, aml_return(aml_call1(s, aml_name("_UID"))));
- aml_append(dev, method);
-
- method = aml_method("_OST", 3, AML_NOTSERIALIZED);
- s = BASEPATH MEMORY_SLOT_OST_METHOD;
-
- aml_append(method, aml_return(aml_call4(
- s, aml_name("_UID"), aml_arg(0), aml_arg(1), aml_arg(2)
- )));
- aml_append(dev, method);
-
- method = aml_method("_EJ0", 1, AML_NOTSERIALIZED);
- s = BASEPATH MEMORY_SLOT_EJECT_METHOD;
- aml_append(method, aml_return(aml_call2(
- s, aml_name("_UID"), aml_arg(0))));
- aml_append(dev, method);
-
- aml_append(sb_scope, dev);
- }
-
- /* build Method(MEMORY_SLOT_NOTIFY_METHOD, 2) {
- * If (LEqual(Arg0, 0x00)) {Notify(MP00, Arg1)} ... }
- */
- method = aml_method(MEMORY_SLOT_NOTIFY_METHOD, 2, AML_NOTSERIALIZED);
- for (i = 0; i < nr_mem; i++) {
- ifctx = aml_if(aml_equal(aml_arg(0), aml_int(i)));
- aml_append(ifctx,
- aml_notify(aml_name("MP%.02X", i), aml_arg(1))
- );
- aml_append(method, ifctx);
- }
- aml_append(sb_scope, method);
-}
-
static void build_hpet_aml(Aml *table)
{
Aml *crs;
@@ -2049,8 +1920,7 @@ build_dsdt(GArray *table_data, BIOSLinker *linker,
build_cpus_aml(dsdt, machine, opts, pm->cpu_hp_io_base,
"\\_SB.PCI0", "\\_GPE._E02");
}
- build_memory_hotplug_aml(dsdt, nr_mem, pm->mem_hp_io_base,
- pm->mem_hp_io_len);
+ build_memory_hotplug_aml(dsdt, nr_mem, "\\_SB.PCI0", "\\_GPE._E03");
scope = aml_scope("_GPE");
{
@@ -2065,10 +1935,6 @@ build_dsdt(GArray *table_data, BIOSLinker *linker,
aml_append(scope, method);
}
- method = aml_method("_E03", 0, AML_NOTSERIALIZED);
- aml_append(method, aml_call0(MEMORY_HOTPLUG_HANDLER_PATH));
- aml_append(scope, method);
-
if (pcms->acpi_nvdimm_state.is_enabled) {
method = aml_method("_E04", 0, AML_NOTSERIALIZED);
aml_append(method, aml_notify(aml_name("\\_SB.NVDR"),
@@ -2321,45 +2187,40 @@ build_dsdt(GArray *table_data, BIOSLinker *linker,
sb_scope = aml_scope("\\_SB");
{
- build_memory_devices(sb_scope, nr_mem, pm->mem_hp_io_base,
- pm->mem_hp_io_len);
+ Object *pci_host;
+ PCIBus *bus = NULL;
- {
- Object *pci_host;
- PCIBus *bus = NULL;
+ pci_host = acpi_get_i386_pci_host();
+ if (pci_host) {
+ bus = PCI_HOST_BRIDGE(pci_host)->bus;
+ }
- pci_host = acpi_get_i386_pci_host();
- if (pci_host) {
- bus = PCI_HOST_BRIDGE(pci_host)->bus;
+ if (bus) {
+ Aml *scope = aml_scope("PCI0");
+ /* Scan all PCI buses. Generate tables to support hotplug. */
+ build_append_pci_bus_devices(scope, bus, pm->pcihp_bridge_en);
+
+ if (misc->tpm_version != TPM_VERSION_UNSPEC) {
+ dev = aml_device("ISA.TPM");
+ aml_append(dev, aml_name_decl("_HID", aml_eisaid("PNP0C31")));
+ aml_append(dev, aml_name_decl("_STA", aml_int(0xF)));
+ crs = aml_resource_template();
+ aml_append(crs, aml_memory32_fixed(TPM_TIS_ADDR_BASE,
+ TPM_TIS_ADDR_SIZE, AML_READ_WRITE));
+ /*
+ FIXME: TPM_TIS_IRQ=5 conflicts with PNP0C0F irqs,
+ Rewrite to take IRQ from TPM device model and
+ fix default IRQ value there to use some unused IRQ
+ */
+ /* aml_append(crs, aml_irq_no_flags(TPM_TIS_IRQ)); */
+ aml_append(dev, aml_name_decl("_CRS", crs));
+ aml_append(scope, dev);
}
- if (bus) {
- Aml *scope = aml_scope("PCI0");
- /* Scan all PCI buses. Generate tables to support hotplug. */
- build_append_pci_bus_devices(scope, bus, pm->pcihp_bridge_en);
-
- if (misc->tpm_version != TPM_VERSION_UNSPEC) {
- dev = aml_device("ISA.TPM");
- aml_append(dev, aml_name_decl("_HID", aml_eisaid("PNP0C31")));
- aml_append(dev, aml_name_decl("_STA", aml_int(0xF)));
- crs = aml_resource_template();
- aml_append(crs, aml_memory32_fixed(TPM_TIS_ADDR_BASE,
- TPM_TIS_ADDR_SIZE, AML_READ_WRITE));
- /*
- FIXME: TPM_TIS_IRQ=5 conflicts with PNP0C0F irqs,
- Rewrite to take IRQ from TPM device model and
- fix default IRQ value there to use some unused IRQ
- */
- /* aml_append(crs, aml_irq_no_flags(TPM_TIS_IRQ)); */
- aml_append(dev, aml_name_decl("_CRS", crs));
- aml_append(scope, dev);
- }
-
- aml_append(sb_scope, scope);
- }
+ aml_append(sb_scope, scope);
}
- aml_append(dsdt, sb_scope);
}
+ aml_append(dsdt, sb_scope);
/* copy AML table into ACPI tables blob and patch header there */
g_array_append_vals(table_data, dsdt->buf->data, dsdt->buf->len);
@@ -2575,6 +2436,7 @@ build_dmar_q35(GArray *table_data, BIOSLinker *linker)
AcpiTableDmar *dmar;
AcpiDmarHardwareUnit *drhd;
+ AcpiDmarRootPortATS *atsr;
uint8_t dmar_flags = 0;
X86IOMMUState *iommu = x86_iommu_get_default();
AcpiDmarDeviceScope *scope = NULL;
@@ -2608,6 +2470,14 @@ build_dmar_q35(GArray *table_data, BIOSLinker *linker)
scope->path[0].device = PCI_SLOT(Q35_PSEUDO_DEVFN_IOAPIC);
scope->path[0].function = PCI_FUNC(Q35_PSEUDO_DEVFN_IOAPIC);
+ if (iommu->dt_supported) {
+ atsr = acpi_data_push(table_data, sizeof(*atsr));
+ atsr->type = cpu_to_le16(ACPI_DMAR_TYPE_ATSR);
+ atsr->length = cpu_to_le16(sizeof(*atsr));
+ atsr->flags = ACPI_DMAR_ATSR_ALL_PORTS;
+ atsr->pci_segment = cpu_to_le16(0);
+ }
+
build_header(linker, table_data, (void *)(table_data->data + dmar_start),
"DMAR", table_data->len - dmar_start, 1, NULL, NULL);
}
diff --git a/hw/i386/intel_iommu.c b/hw/i386/intel_iommu.c
index 5f3e35123d..ec62239aba 100644
--- a/hw/i386/intel_iommu.c
+++ b/hw/i386/intel_iommu.c
@@ -738,11 +738,18 @@ static int vtd_dev_to_context_entry(IntelIOMMUState *s, uint8_t bus_num,
"context-entry hi 0x%"PRIx64 " lo 0x%"PRIx64,
ce->hi, ce->lo);
return -VTD_FR_CONTEXT_ENTRY_INV;
- } else if (ce->lo & VTD_CONTEXT_ENTRY_TT) {
- VTD_DPRINTF(GENERAL, "error: unsupported Translation Type in "
- "context-entry hi 0x%"PRIx64 " lo 0x%"PRIx64,
- ce->hi, ce->lo);
- return -VTD_FR_CONTEXT_ENTRY_INV;
+ } else {
+ switch (ce->lo & VTD_CONTEXT_ENTRY_TT) {
+ case VTD_CONTEXT_TT_MULTI_LEVEL:
+ /* fall through */
+ case VTD_CONTEXT_TT_DEV_IOTLB:
+ break;
+ default:
+ VTD_DPRINTF(GENERAL, "error: unsupported Translation Type in "
+ "context-entry hi 0x%"PRIx64 " lo 0x%"PRIx64,
+ ce->hi, ce->lo);
+ return -VTD_FR_CONTEXT_ENTRY_INV;
+ }
}
return 0;
}
@@ -1438,7 +1445,61 @@ static bool vtd_process_inv_iec_desc(IntelIOMMUState *s,
vtd_iec_notify_all(s, !inv_desc->iec.granularity,
inv_desc->iec.index,
inv_desc->iec.index_mask);
+ return true;
+}
+static bool vtd_process_device_iotlb_desc(IntelIOMMUState *s,
+ VTDInvDesc *inv_desc)
+{
+ VTDAddressSpace *vtd_dev_as;
+ IOMMUTLBEntry entry;
+ struct VTDBus *vtd_bus;
+ hwaddr addr;
+ uint64_t sz;
+ uint16_t sid;
+ uint8_t devfn;
+ bool size;
+ uint8_t bus_num;
+
+ addr = VTD_INV_DESC_DEVICE_IOTLB_ADDR(inv_desc->hi);
+ sid = VTD_INV_DESC_DEVICE_IOTLB_SID(inv_desc->lo);
+ devfn = sid & 0xff;
+ bus_num = sid >> 8;
+ size = VTD_INV_DESC_DEVICE_IOTLB_SIZE(inv_desc->hi);
+
+ if ((inv_desc->lo & VTD_INV_DESC_DEVICE_IOTLB_RSVD_LO) ||
+ (inv_desc->hi & VTD_INV_DESC_DEVICE_IOTLB_RSVD_HI)) {
+ VTD_DPRINTF(GENERAL, "error: non-zero reserved field in Device "
+ "IOTLB Invalidate Descriptor hi 0x%"PRIx64 " lo 0x%"PRIx64,
+ inv_desc->hi, inv_desc->lo);
+ return false;
+ }
+
+ vtd_bus = vtd_find_as_from_bus_num(s, bus_num);
+ if (!vtd_bus) {
+ goto done;
+ }
+
+ vtd_dev_as = vtd_bus->dev_as[devfn];
+ if (!vtd_dev_as) {
+ goto done;
+ }
+
+ if (size) {
+ sz = 1 << (ctz64(~(addr | (VTD_PAGE_MASK_4K - 1))) + 1);
+ addr &= ~(sz - 1);
+ } else {
+ sz = VTD_PAGE_SIZE;
+ }
+
+ entry.target_as = &vtd_dev_as->as;
+ entry.addr_mask = sz - 1;
+ entry.iova = addr;
+ entry.perm = IOMMU_NONE;
+ entry.translated_addr = 0;
+ memory_region_notify_iommu(entry.target_as->root, entry);
+
+done:
return true;
}
@@ -1490,6 +1551,14 @@ static bool vtd_process_inv_desc(IntelIOMMUState *s)
}
break;
+ case VTD_INV_DESC_DEVICE:
+ VTD_DPRINTF(INV, "Device IOTLB Invalidation Descriptor hi 0x%"PRIx64
+ " lo 0x%"PRIx64, inv_desc.hi, inv_desc.lo);
+ if (!vtd_process_device_iotlb_desc(s, &inv_desc)) {
+ return false;
+ }
+ break;
+
default:
VTD_DPRINTF(GENERAL, "error: unkonw Invalidation Descriptor type "
"hi 0x%"PRIx64 " lo 0x%"PRIx64 " type %"PRIu8,
@@ -1996,7 +2065,27 @@ static void vtd_iommu_notify_flag_changed(MemoryRegion *iommu,
static const VMStateDescription vtd_vmstate = {
.name = "iommu-intel",
- .unmigratable = 1,
+ .version_id = 1,
+ .minimum_version_id = 1,
+ .priority = MIG_PRI_IOMMU,
+ .fields = (VMStateField[]) {
+ VMSTATE_UINT64(root, IntelIOMMUState),
+ VMSTATE_UINT64(intr_root, IntelIOMMUState),
+ VMSTATE_UINT64(iq, IntelIOMMUState),
+ VMSTATE_UINT32(intr_size, IntelIOMMUState),
+ VMSTATE_UINT16(iq_head, IntelIOMMUState),
+ VMSTATE_UINT16(iq_tail, IntelIOMMUState),
+ VMSTATE_UINT16(iq_size, IntelIOMMUState),
+ VMSTATE_UINT16(next_frcd_reg, IntelIOMMUState),
+ VMSTATE_UINT8_ARRAY(csr, IntelIOMMUState, DMAR_REG_SIZE),
+ VMSTATE_UINT8(iq_last_desc_type, IntelIOMMUState),
+ VMSTATE_BOOL(root_extended, IntelIOMMUState),
+ VMSTATE_BOOL(dmar_enabled, IntelIOMMUState),
+ VMSTATE_BOOL(qi_enabled, IntelIOMMUState),
+ VMSTATE_BOOL(intr_enabled, IntelIOMMUState),
+ VMSTATE_BOOL(intr_eime, IntelIOMMUState),
+ VMSTATE_END_OF_LIST()
+ }
};
static const MemoryRegionOps vtd_mem_ops = {
@@ -2324,19 +2413,22 @@ VTDAddressSpace *vtd_find_add_as(IntelIOMMUState *s, PCIBus *bus, int devfn)
uintptr_t key = (uintptr_t)bus;
VTDBus *vtd_bus = g_hash_table_lookup(s->vtd_as_by_busptr, &key);
VTDAddressSpace *vtd_dev_as;
+ char name[128];
if (!vtd_bus) {
+ uintptr_t *new_key = g_malloc(sizeof(*new_key));
+ *new_key = (uintptr_t)bus;
/* No corresponding free() */
vtd_bus = g_malloc0(sizeof(VTDBus) + sizeof(VTDAddressSpace *) * \
X86_IOMMU_PCI_DEVFN_MAX);
vtd_bus->bus = bus;
- key = (uintptr_t)bus;
- g_hash_table_insert(s->vtd_as_by_busptr, &key, vtd_bus);
+ g_hash_table_insert(s->vtd_as_by_busptr, new_key, vtd_bus);
}
vtd_dev_as = vtd_bus->dev_as[devfn];
if (!vtd_dev_as) {
+ snprintf(name, sizeof(name), "intel_iommu_devfn_%d", devfn);
vtd_bus->dev_as[devfn] = vtd_dev_as = g_malloc0(sizeof(VTDAddressSpace));
vtd_dev_as->bus = bus;
@@ -2351,7 +2443,7 @@ VTDAddressSpace *vtd_find_add_as(IntelIOMMUState *s, PCIBus *bus, int devfn)
memory_region_add_subregion(&vtd_dev_as->iommu, VTD_INTERRUPT_ADDR_FIRST,
&vtd_dev_as->iommu_ir);
address_space_init(&vtd_dev_as->as,
- &vtd_dev_as->iommu, "intel_iommu");
+ &vtd_dev_as->iommu, name);
}
return vtd_dev_as;
}
@@ -2392,6 +2484,10 @@ static void vtd_init(IntelIOMMUState *s)
assert(s->intr_eim != ON_OFF_AUTO_AUTO);
}
+ if (x86_iommu->dt_supported) {
+ s->ecap |= VTD_ECAP_DT;
+ }
+
vtd_reset_context_cache(s);
vtd_reset_iotlb(s);
diff --git a/hw/i386/intel_iommu_internal.h b/hw/i386/intel_iommu_internal.h
index 11abfa2233..356f188b73 100644
--- a/hw/i386/intel_iommu_internal.h
+++ b/hw/i386/intel_iommu_internal.h
@@ -183,6 +183,7 @@
/* (offset >> 4) << 8 */
#define VTD_ECAP_IRO (DMAR_IOTLB_REG_OFFSET << 4)
#define VTD_ECAP_QI (1ULL << 1)
+#define VTD_ECAP_DT (1ULL << 2)
/* Interrupt Remapping support */
#define VTD_ECAP_IR (1ULL << 3)
#define VTD_ECAP_EIM (1ULL << 4)
@@ -326,6 +327,7 @@ typedef union VTDInvDesc VTDInvDesc;
#define VTD_INV_DESC_TYPE 0xf
#define VTD_INV_DESC_CC 0x1 /* Context-cache Invalidate Desc */
#define VTD_INV_DESC_IOTLB 0x2
+#define VTD_INV_DESC_DEVICE 0x3
#define VTD_INV_DESC_IEC 0x4 /* Interrupt Entry Cache
Invalidate Descriptor */
#define VTD_INV_DESC_WAIT 0x5 /* Invalidation Wait Descriptor */
@@ -361,6 +363,13 @@ typedef union VTDInvDesc VTDInvDesc;
#define VTD_INV_DESC_IOTLB_RSVD_LO 0xffffffff0000ff00ULL
#define VTD_INV_DESC_IOTLB_RSVD_HI 0xf80ULL
+/* Mask for Device IOTLB Invalidate Descriptor */
+#define VTD_INV_DESC_DEVICE_IOTLB_ADDR(val) ((val) & 0xfffffffffffff000ULL)
+#define VTD_INV_DESC_DEVICE_IOTLB_SIZE(val) ((val) & 0x1)
+#define VTD_INV_DESC_DEVICE_IOTLB_SID(val) (((val) >> 32) & 0xFFFFULL)
+#define VTD_INV_DESC_DEVICE_IOTLB_RSVD_HI 0xffeULL
+#define VTD_INV_DESC_DEVICE_IOTLB_RSVD_LO 0xffff0000ffe0fff8
+
/* Information about page-selective IOTLB invalidate */
struct VTDIOTLBPageInvInfo {
uint16_t domain_id;
@@ -399,8 +408,8 @@ typedef struct VTDRootEntry VTDRootEntry;
#define VTD_CONTEXT_ENTRY_FPD (1ULL << 1) /* Fault Processing Disable */
#define VTD_CONTEXT_ENTRY_TT (3ULL << 2) /* Translation Type */
#define VTD_CONTEXT_TT_MULTI_LEVEL 0
-#define VTD_CONTEXT_TT_DEV_IOTLB 1
-#define VTD_CONTEXT_TT_PASS_THROUGH 2
+#define VTD_CONTEXT_TT_DEV_IOTLB (1ULL << 2)
+#define VTD_CONTEXT_TT_PASS_THROUGH (2ULL << 2)
/* Second Level Page Translation Pointer*/
#define VTD_CONTEXT_ENTRY_SLPTPTR (~0xfffULL)
#define VTD_CONTEXT_ENTRY_RSVD_LO (0xff0ULL | ~VTD_HAW_MASK)
diff --git a/hw/i386/x86-iommu.c b/hw/i386/x86-iommu.c
index 2278af7c32..23dcd3f039 100644
--- a/hw/i386/x86-iommu.c
+++ b/hw/i386/x86-iommu.c
@@ -106,6 +106,18 @@ static void x86_iommu_intremap_prop_set(Object *o, bool value, Error **errp)
s->intr_supported = value;
}
+static bool x86_iommu_device_iotlb_prop_get(Object *o, Error **errp)
+{
+ X86IOMMUState *s = X86_IOMMU_DEVICE(o);
+ return s->dt_supported;
+}
+
+static void x86_iommu_device_iotlb_prop_set(Object *o, bool value, Error **errp)
+{
+ X86IOMMUState *s = X86_IOMMU_DEVICE(o);
+ s->dt_supported = value;
+}
+
static void x86_iommu_instance_init(Object *o)
{
X86IOMMUState *s = X86_IOMMU_DEVICE(o);
@@ -114,6 +126,11 @@ static void x86_iommu_instance_init(Object *o)
s->intr_supported = false;
object_property_add_bool(o, "intremap", x86_iommu_intremap_prop_get,
x86_iommu_intremap_prop_set, NULL);
+ s->dt_supported = false;
+ object_property_add_bool(o, "device-iotlb",
+ x86_iommu_device_iotlb_prop_get,
+ x86_iommu_device_iotlb_prop_set,
+ NULL);
}
static const TypeInfo x86_iommu_info = {