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memory/iommu: introduce IOMMUMemoryRegionClass

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This finishes QOM'fication of IOMMUMemoryRegion by introducing
a IOMMUMemoryRegionClass. This also provides a fastpath analog for
IOMMU_MEMORY_REGION_GET_CLASS().

This makes IOMMUMemoryRegion an abstract class.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Message-Id: <20170711035620.4232-3-aik@ozlabs.ru>
Acked-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Alexey Kardashevskiy 2017-07-11 13:56:20 +10:00 • committed by Paolo Bonzini
parent 3df9d74806
commit 1221a47467
15 changed files with 205 additions and 70 deletions
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25
hw/i386/intel_iommu.c
View file

@ -2718,8 +2718,9 @@ VTDAddressSpace *vtd_find_add_as(IntelIOMMUState *s, PCIBus *bus, int devfn)
* vtd_sys_alias and intel_iommu regions. IR region is always
* enabled.
*/
memory_region_init_iommu(&vtd_dev_as->iommu, OBJECT(s),
&s->iommu_ops, "intel_iommu_dmar",
memory_region_init_iommu(&vtd_dev_as->iommu, sizeof(vtd_dev_as->iommu),
TYPE_INTEL_IOMMU_MEMORY_REGION, OBJECT(s),
"intel_iommu_dmar",
UINT64_MAX);
memory_region_init_alias(&vtd_dev_as->sys_alias, OBJECT(s),
"vtd_sys_alias", get_system_memory(),
@ -2857,9 +2858,6 @@ static void vtd_init(IntelIOMMUState *s)
memset(s->w1cmask, 0, DMAR_REG_SIZE);
memset(s->womask, 0, DMAR_REG_SIZE);
s->iommu_ops.translate = vtd_iommu_translate;
s->iommu_ops.notify_flag_changed = vtd_iommu_notify_flag_changed;
s->iommu_ops.replay = vtd_iommu_replay;
s->root = 0;
s->root_extended = false;
s->dmar_enabled = false;
@ -3074,9 +3072,26 @@ static const TypeInfo vtd_info = {
.class_init = vtd_class_init,
};
static void vtd_iommu_memory_region_class_init(ObjectClass *klass,
void *data)
{
IOMMUMemoryRegionClass *imrc = IOMMU_MEMORY_REGION_CLASS(klass);
imrc->translate = vtd_iommu_translate;
imrc->notify_flag_changed = vtd_iommu_notify_flag_changed;
imrc->replay = vtd_iommu_replay;
}
static const TypeInfo vtd_iommu_memory_region_info = {
.parent = TYPE_IOMMU_MEMORY_REGION,
.name = TYPE_INTEL_IOMMU_MEMORY_REGION,
.class_init = vtd_iommu_memory_region_class_init,
};
static void vtd_register_types(void)
{
type_register_static(&vtd_info);
type_register_static(&vtd_iommu_memory_region_info);
}
type_init(vtd_register_types)