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| author | Alexey Kardashevskiy <aik@ozlabs.ru> | 2017-07-11 13:56:19 +1000 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2017-07-14 12:04:41 +0200 |
| commit | 3df9d748067f5a7f01b98ddc63597c98c8244a95 (patch) | |
| tree | b8270a9eb9c2484fb78f0ffee33b4f9ed611f8ae /hw/dma/rc4030.c | |
| parent | 98fab4c163adb980568afa40824208edbcd6d70c (diff) | |
| download | qemu-3df9d748067f5a7f01b98ddc63597c98c8244a95.zip qemu-3df9d748067f5a7f01b98ddc63597c98c8244a95.tar.gz qemu-3df9d748067f5a7f01b98ddc63597c98c8244a95.tar.bz2 | |
memory/iommu: QOM'fy IOMMU MemoryRegion
This defines new QOM object - IOMMUMemoryRegion - with MemoryRegion
as a parent.
This moves IOMMU-related fields from MR to IOMMU MR. However to avoid
dymanic QOM casting in fast path (address_space_translate, etc),
this adds an @is_iommu boolean flag to MR and provides new helper to
do simple cast to IOMMU MR - memory_region_get_iommu. The flag
is set in the instance init callback. This defines
memory_region_is_iommu as memory_region_get_iommu()!=NULL.
This switches MemoryRegion to IOMMUMemoryRegion in most places except
the ones where MemoryRegion may be an alias.
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Message-Id: <20170711035620.4232-2-aik@ozlabs.ru>
Acked-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'hw/dma/rc4030.c')
| -rw-r--r-- | hw/dma/rc4030.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/hw/dma/rc4030.c b/hw/dma/rc4030.c index edf9432..32c0676 100644 --- a/hw/dma/rc4030.c +++ b/hw/dma/rc4030.c @@ -90,7 +90,7 @@ typedef struct rc4030State qemu_irq jazz_bus_irq; /* whole DMA memory region, root of DMA address space */ - MemoryRegion dma_mr; + IOMMUMemoryRegion dma_mr; AddressSpace dma_as; MemoryRegion iomem_chipset; @@ -488,7 +488,7 @@ static const MemoryRegionOps jazzio_ops = { .endianness = DEVICE_NATIVE_ENDIAN, }; -static IOMMUTLBEntry rc4030_dma_translate(MemoryRegion *iommu, hwaddr addr, +static IOMMUTLBEntry rc4030_dma_translate(IOMMUMemoryRegion *iommu, hwaddr addr, IOMMUAccessFlags flag) { rc4030State *s = container_of(iommu, rc4030State, dma_mr); @@ -679,7 +679,7 @@ static void rc4030_realize(DeviceState *dev, Error **errp) memory_region_init_iommu(&s->dma_mr, o, &rc4030_dma_ops, "rc4030.dma", UINT32_MAX); - address_space_init(&s->dma_as, &s->dma_mr, "rc4030-dma"); + address_space_init(&s->dma_as, MEMORY_REGION(&s->dma_mr), "rc4030-dma"); } static void rc4030_unrealize(DeviceState *dev, Error **errp) @@ -717,7 +717,7 @@ static void rc4030_register_types(void) type_init(rc4030_register_types) -DeviceState *rc4030_init(rc4030_dma **dmas, MemoryRegion **dma_mr) +DeviceState *rc4030_init(rc4030_dma **dmas, IOMMUMemoryRegion **dma_mr) { DeviceState *dev; |