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| author | Eric Auger | 2020-07-03 17:59:42 +0200 |
|---|---|---|
| committer | Peter Maydell | 2020-07-03 17:59:42 +0200 |
| commit | 0f5a3092eef7a210e0503b561a4c0ccb98705c7f (patch) | |
| tree | 75411a9df7ef04489767ce855633b1bfb600a6e8 /include/exec | |
| parent | virtio-iommu: Implement RESV_MEM probe request (diff) | |
| download | qemu-0f5a3092eef7a210e0503b561a4c0ccb98705c7f.tar.gz qemu-0f5a3092eef7a210e0503b561a4c0ccb98705c7f.tar.xz qemu-0f5a3092eef7a210e0503b561a4c0ccb98705c7f.zip | |
virtio-iommu: Handle reserved regions in the translation process
When translating an address we need to check if it belongs to
a reserved virtual address range. If it does, there are 2 cases:
- it belongs to a RESERVED region: the guest should neither use
this address in a MAP not instruct the end-point to DMA on
them. We report an error
- It belongs to an MSI region: we bypass the translation.
Signed-off-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Jean-Philippe Brucker <jean-philippe@linaro.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Message-id: 20200629070404.10969-4-eric.auger@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'include/exec')
0 files changed, 0 insertions, 0 deletions