qemu/virtio at 10f4718b51d77ff06878afd326c3d3dd140770ee - qemu

mii/qemu

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Files

Jason Wang aebbdbee55 vhost: do not verify ring mappings when IOMMU is enabled

When IOMMU is enabled, we store virtqueue metadata as iova (though it
may has _phys suffix) and access them through dma helpers. Any
translation failures could be reported by IOMMU.

In this case, trying to validate iova against gpa won't work and will
cause a false error reporting. So this patch bypasses the ring
verification if IOMMU is enabled which is similar to the behavior
before 0ca1fd2d68 that calls vhost_memory_map() which is a nop when
IOMMU is enabled.

Fixes: 0ca1fd2d68 ("vhost: Simplify ring verification checks")
Cc: Dr. David Alan Gilbert <dgilbert@redhat.com>
Cc: Igor Mammedov <imammedo@redhat.com>
Cc: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

2018-04-16 19:11:38 +03:00

Makefile.objs

stubs: move vhost stubs to stubs/vhost.o

2017-01-16 17:52:35 +01:00

trace-events

vhost: Huge page align and merge

2018-03-20 16:40:37 +02:00

vhost-backend.c

vhost: fix a memory leak

2017-08-02 00:13:25 +03:00

vhost-stub.c

stubs: move vhost stubs to stubs/vhost.o