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vdpa: Skip protected ram IOMMU mappings

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Following the logic of commit 56918a126ae ("memory: Add RAM_PROTECTED
flag to skip IOMMU mappings") with VFIO, skip memory sections
inaccessible via normal mechanisms, including DMA.

Signed-off-by: Eugenio Pérez <eperezma@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Message-Id: <20211014141236.923287-2-eperezma@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
This commit is contained in:
Eugenio Pérez 2021-10-14 16:12:34 +02:00 committed by Michael S. Tsirkin
parent 220ffd949b
commit c64038c93e
1 changed files with 1 additions and 0 deletions
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1
hw/virtio/vhost-vdpa.c
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@ -28,6 +28,7 @@ static bool vhost_vdpa_listener_skipped_section(MemoryRegionSection *section)
{ {
return (!memory_region_is_ram(section->mr) && return (!memory_region_is_ram(section->mr) &&
!memory_region_is_iommu(section->mr)) || !memory_region_is_iommu(section->mr)) ||
memory_region_is_protected(section->mr) ||
/* vhost-vDPA doesn't allow MMIO to be mapped */ /* vhost-vDPA doesn't allow MMIO to be mapped */
memory_region_is_ram_device(section->mr) || memory_region_is_ram_device(section->mr) ||
/* /*