@@ -52,9 +52,32 @@ static void x86_iommu_class_init(ObjectClass *klass, void *data)
dc->realize = x86_iommu_realize;
}
+static bool x86_iommu_intremap_prop_get(Object *o, Error **errp)
+{
+ X86IOMMUState *s = X86_IOMMU_DEVICE(o);
+ return s->intr_supported;
+}
+
+static void x86_iommu_intremap_prop_set(Object *o, bool value, Error **errp)
+{
+ X86IOMMUState *s = X86_IOMMU_DEVICE(o);
+ s->intr_supported = value;
+}
+
+static void x86_iommu_instance_init(Object *o)
+{
+ X86IOMMUState *s = X86_IOMMU_DEVICE(o);
+
+ /* By default, do not support IR */
+ s->intr_supported = false;
+ object_property_add_bool(o, "intremap", x86_iommu_intremap_prop_get,
+ x86_iommu_intremap_prop_set, NULL);
+}
+
static const TypeInfo x86_iommu_info = {
.name = TYPE_X86_IOMMU_DEVICE,
.parent = TYPE_SYS_BUS_DEVICE,
+ .instance_init = x86_iommu_instance_init,
.instance_size = sizeof(X86IOMMUState),
.class_init = x86_iommu_class_init,
.class_size = sizeof(X86IOMMUClass),
@@ -47,6 +47,7 @@ struct X86IOMMUClass {
struct X86IOMMUState {
SysBusDevice busdev;
+ bool intr_supported; /* Whether vIOMMU supports IR */
};
/**
Adding one property for intel-iommu devices to specify whether we should support interrupt remapping. By default, IR is disabled. To enable it, we should use (take Intel IOMMU as example): -device intel_iommu,intremap=on This property can be shared by Intel and future AMD IOMMUs. Signed-off-by: Peter Xu <peterx@redhat.com> --- hw/i386/x86-iommu.c | 23 +++++++++++++++++++++++ include/hw/i386/x86-iommu.h | 1 + 2 files changed, 24 insertions(+)