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memory: Introduce memory_region_iommu_set_iova_ranges

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This helper will allow to convey information about valid
IOVA ranges to virtual IOMMUS.

Signed-off-by: Eric Auger <eric.auger@redhat.com>
Acked-by: Peter Xu <peterx@redhat.com>
Reviewed-by: "Michael S. Tsirkin" <mst@redhat.com>
[ clg: fixes in memory_region_iommu_set_iova_ranges() and
       iommu_set_iova_ranges() documentation ]
Signed-off-by: Cédric Le Goater <clg@redhat.com>
This commit is contained in:
Eric Auger 2023-10-19 15:45:08 +02:00 • committed by Cédric Le Goater
parent e8f433f80e
commit 51478a8ef5
2 changed files with 45 additions and 0 deletions
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13
system/memory.c
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@ -1921,6 +1921,19 @@ int memory_region_iommu_set_page_size_mask(IOMMUMemoryRegion *iommu_mr,
return ret;
}
int memory_region_iommu_set_iova_ranges(IOMMUMemoryRegion *iommu_mr,
GList *iova_ranges,
Error **errp)
{
IOMMUMemoryRegionClass *imrc = IOMMU_MEMORY_REGION_GET_CLASS(iommu_mr);
int ret = 0;
if (imrc->iommu_set_iova_ranges) {
ret = imrc->iommu_set_iova_ranges(iommu_mr, iova_ranges, errp);
}
return ret;
}
int memory_region_register_iommu_notifier(MemoryRegion *mr,
IOMMUNotifier *n, Error **errp)
{