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Max Gurtovoy authored
Iommu iotlb can be accessed by different cores for performing IO using multiple virt queues. Add a spinlock to synchronize iotlb accesses. This could be easily reproduced when using more than 1 pktgen threads to inject traffic to vdpa simulator. Fixes: 2c53d0f6("vdpasim: vDPA device simulator") Cc: stable@vger.kernel.org Signed-off-by:
Max Gurtovoy <maxg@mellanox.com> Signed-off-by:
Jason Wang <jasowang@redhat.com> Link: https://lore.kernel.org/r/20200731073822.13326-1-jasowang@redhat.comSigned-off-by:
Michael S. Tsirkin <mst@redhat.com>
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