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memory/iommu: Add get_attr()

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This adds get_attr() to IOMMUMemoryRegionClass, like
iommu_ops::domain_get_attr in the Linux kernel.

This defines the first attribute - IOMMU_ATTR_SPAPR_TCE_FD - which
will be used between the pSeries machine and VFIO-PCI.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
This commit is contained in:
Alexey Kardashevskiy
2018-02-06 11:08:24 -07:00
committed by Alex Williamson
parent 20e0d439a6
commit f1334de60b
2 changed files with 35 additions and 0 deletions
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memory.c
+13
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@@ -1922,6 +1922,19 @@ void memory_region_notify_iommu(IOMMUMemoryRegion *iommu_mr,
}
}
int memory_region_iommu_get_attr(IOMMUMemoryRegion *iommu_mr,
enum IOMMUMemoryRegionAttr attr,
void *data)
{
IOMMUMemoryRegionClass *imrc = IOMMU_MEMORY_REGION_GET_CLASS(iommu_mr);
if (!imrc->get_attr) {
return -EINVAL;
}
return imrc->get_attr(iommu_mr, attr, data);
}
void memory_region_set_log(MemoryRegion *mr, bool log, unsigned client)
{
uint8_t mask = 1 << client;