| commit | 0f5a3092eef7a210e0503b561a4c0ccb98705c7f | |
| author | Eric Auger <eric.auger@redhat.com> | |
| Fri, 3 Jul 2020 15:59:42 +0000 (3 16:59 +0100) | ||
| committer | Peter Maydell <peter.maydell@linaro.org> | |
| Fri, 3 Jul 2020 15:59:42 +0000 (3 16:59 +0100) | ||
| tree | 75411a9df7ef04489767ce855633b1bfb600a6e8 | treesnapshot (tar.gz zip) |
| parent | 1733eebb9e75b77120b462814f8f9b03ae918a7a | commitdiff |
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>
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>
| hw/virtio/virtio-iommu.c | diffblobblamehistory |