diff options
| author | Zhenzhong Duan <zhenzhong.duan@intel.com> | 2022-06-24 17:37:40 +0800 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2022-06-27 18:53:18 -0400 |
| commit | d355566bd958e24e7e384da6ea89a9fc88d7bfed (patch) | |
| tree | ca442c3b22f77b4d705d74f218fd0179dba9dbf5 /hw/virtio | |
| parent | ae50ae0b91bb5bebb0d074afaecba027d8da16a1 (diff) | |
virtio-iommu: Fix migration regression
We also need to switch to the right address space on dest side
after loading the device status. DMA to wrong address space is
destructive.
Fixes: 3facd774962fd ("virtio-iommu: Add bypass mode support to assigned device")
Suggested-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Message-Id: <20220624093740.3525267-1-zhenzhong.duan@intel.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Diffstat (limited to 'hw/virtio')
| -rw-r--r-- | hw/virtio/virtio-iommu.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/hw/virtio/virtio-iommu.c b/hw/virtio/virtio-iommu.c index 08b227e828..281152d338 100644 --- a/hw/virtio/virtio-iommu.c +++ b/hw/virtio/virtio-iommu.c @@ -1322,6 +1322,14 @@ static int iommu_post_load(void *opaque, int version_id) VirtIOIOMMU *s = opaque; g_tree_foreach(s->domains, reconstruct_endpoints, s); + + /* + * Memory regions are dynamically turned on/off depending on + * 'config.bypass' and attached domain type if there is. After + * migration, we need to make sure the memory regions are + * still correct. + */ + virtio_iommu_switch_address_space_all(s); return 0; } |