vhost: check region type before casting
Check region type first before casting the memory region
to IOMMUMemoryRegion. Otherwise QEMU will abort with below
error message when casting non-IOMMU memory region:
vhost_iommu_region_add: Object 0x561f28bce4f0 is not an
instance of type qemu:iommu-memory-region
Fixes: cb1efcf462
("iommu: Add IOMMU index argument to notifier APIs")
Cc: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Tiwei Bie <tiwei.bie@intel.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
parent
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@ -663,12 +663,14 @@ static void vhost_iommu_region_add(MemoryListener *listener,
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struct vhost_iommu *iommu;
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Int128 end;
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int iommu_idx;
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IOMMUMemoryRegion *iommu_mr = IOMMU_MEMORY_REGION(section->mr);
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IOMMUMemoryRegion *iommu_mr;
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if (!memory_region_is_iommu(section->mr)) {
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return;
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}
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iommu_mr = IOMMU_MEMORY_REGION(section->mr);
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iommu = g_malloc0(sizeof(*iommu));
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end = int128_add(int128_make64(section->offset_within_region),
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section->size);
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