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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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26
hw/dma/rc4030.c
View file

@ -54,6 +54,8 @@ typedef struct dma_pagetable_entry {
#define RC4030(obj) \
OBJECT_CHECK(rc4030State, (obj), TYPE_RC4030)
#define TYPE_RC4030_IOMMU_MEMORY_REGION "rc4030-iommu-memory-region"
typedef struct rc4030State
{
SysBusDevice parent;
@ -516,10 +518,6 @@ static IOMMUTLBEntry rc4030_dma_translate(IOMMUMemoryRegion *iommu, hwaddr addr,
return ret;
}
static const MemoryRegionIOMMUOps rc4030_dma_ops = {
.translate = rc4030_dma_translate,
};
static void rc4030_reset(DeviceState *dev)
{
rc4030State *s = RC4030(dev);
@ -677,8 +675,9 @@ static void rc4030_realize(DeviceState *dev, Error **errp)
memory_region_init_io(&s->iomem_jazzio, NULL, &jazzio_ops, s,
"rc4030.jazzio", 0x00001000);
memory_region_init_iommu(&s->dma_mr, o, &rc4030_dma_ops,
"rc4030.dma", UINT32_MAX);
memory_region_init_iommu(&s->dma_mr, sizeof(s->dma_mr),
TYPE_RC4030_IOMMU_MEMORY_REGION,
o, "rc4030.dma", UINT32_MAX);
address_space_init(&s->dma_as, MEMORY_REGION(&s->dma_mr), "rc4030-dma");
}
@ -710,9 +709,24 @@ static const TypeInfo rc4030_info = {
.class_init = rc4030_class_init,
};
static void rc4030_iommu_memory_region_class_init(ObjectClass *klass,
void *data)
{
IOMMUMemoryRegionClass *imrc = IOMMU_MEMORY_REGION_CLASS(klass);
imrc->translate = rc4030_dma_translate;
}
static const TypeInfo rc4030_iommu_memory_region_info = {
.parent = TYPE_IOMMU_MEMORY_REGION,
.name = TYPE_RC4030_IOMMU_MEMORY_REGION,
.class_init = rc4030_iommu_memory_region_class_init,
};
static void rc4030_register_types(void)
{
type_register_static(&rc4030_info);
type_register_static(&rc4030_iommu_memory_region_info);
}
type_init(rc4030_register_types)