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iommu: Add IOMMU index argument to translate method

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Add an IOMMU index argument to the translate method of
IOMMUs. Since all of our current IOMMU implementations
support only a single IOMMU index, this has no effect
on the behaviour.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 20180604152941.20374-4-peter.maydell@linaro.org
This commit is contained in:
Peter Maydell
2018-06-15 14:57:16 +01:00
parent cb1efcf462
commit 2c91bcf273
12 changed files with 24 additions and 13 deletions
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11
exec.c
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@ -501,8 +501,15 @@ static MemoryRegionSection address_space_translate_iommu(IOMMUMemoryRegion *iomm
do {
hwaddr addr = *xlat;
IOMMUMemoryRegionClass *imrc = memory_region_get_iommu_class_nocheck(iommu_mr);
IOMMUTLBEntry iotlb = imrc->translate(iommu_mr, addr, is_write ?
IOMMU_WO : IOMMU_RO);
int iommu_idx = 0;
IOMMUTLBEntry iotlb;
if (imrc->attrs_to_index) {
iommu_idx = imrc->attrs_to_index(iommu_mr, attrs);
}
iotlb = imrc->translate(iommu_mr, addr, is_write ?
IOMMU_WO : IOMMU_RO, iommu_idx);
if (!(iotlb.perm & (1 << is_write))) {
goto unassigned;