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-rw-r--r--hw/i386/pc.c20
-rw-r--r--hw/pci-host/q35.c2
-rw-r--r--include/hw/i386/pc.h1
3 files changed, 23 insertions, 0 deletions
diff --git a/hw/i386/pc.c b/hw/i386/pc.c
index f4c7a78..c2b9d62 100644
--- a/hw/i386/pc.c
+++ b/hw/i386/pc.c
@@ -1524,6 +1524,21 @@ static void pc_machine_set_hpet(Object *obj, bool value, Error **errp)
pcms->hpet_enabled = value;
}
+static bool pc_machine_get_default_bus_bypass_iommu(Object *obj, Error **errp)
+{
+ PCMachineState *pcms = PC_MACHINE(obj);
+
+ return pcms->default_bus_bypass_iommu;
+}
+
+static void pc_machine_set_default_bus_bypass_iommu(Object *obj, bool value,
+ Error **errp)
+{
+ PCMachineState *pcms = PC_MACHINE(obj);
+
+ pcms->default_bus_bypass_iommu = value;
+}
+
static void pc_machine_get_max_ram_below_4g(Object *obj, Visitor *v,
const char *name, void *opaque,
Error **errp)
@@ -1623,6 +1638,7 @@ static void pc_machine_initfn(Object *obj)
#ifdef CONFIG_HPET
pcms->hpet_enabled = true;
#endif
+ pcms->default_bus_bypass_iommu = false;
pc_system_flash_create(pcms);
pcms->pcspk = isa_new(TYPE_PC_SPEAKER);
@@ -1747,6 +1763,10 @@ static void pc_machine_class_init(ObjectClass *oc, void *data)
object_class_property_add_bool(oc, "hpet",
pc_machine_get_hpet, pc_machine_set_hpet);
+ object_class_property_add_bool(oc, "default_bus_bypass_iommu",
+ pc_machine_get_default_bus_bypass_iommu,
+ pc_machine_set_default_bus_bypass_iommu);
+
object_class_property_add(oc, PC_MACHINE_MAX_FW_SIZE, "size",
pc_machine_get_max_fw_size, pc_machine_set_max_fw_size,
NULL, NULL);
diff --git a/hw/pci-host/q35.c b/hw/pci-host/q35.c
index 0f37cf0..ab5a47a 100644
--- a/hw/pci-host/q35.c
+++ b/hw/pci-host/q35.c
@@ -65,6 +65,8 @@ static void q35_host_realize(DeviceState *dev, Error **errp)
s->mch.address_space_io,
0, TYPE_PCIE_BUS);
PC_MACHINE(qdev_get_machine())->bus = pci->bus;
+ pci->bypass_iommu =
+ PC_MACHINE(qdev_get_machine())->default_bus_bypass_iommu;
qdev_realize(DEVICE(&s->mch), BUS(pci->bus), &error_fatal);
}
diff --git a/include/hw/i386/pc.h b/include/hw/i386/pc.h
index 0775f94..88dffe7 100644
--- a/include/hw/i386/pc.h
+++ b/include/hw/i386/pc.h
@@ -44,6 +44,7 @@ typedef struct PCMachineState {
bool sata_enabled;
bool pit_enabled;
bool hpet_enabled;
+ bool default_bus_bypass_iommu;
uint64_t max_fw_size;
/* NUMA information: */