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[nvidia_stable-11.0] NVIDIA: SAUCE: WAR: hw/vfio: Retry dma_map to bypass PFNMAP #20

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[nvidia_stable-11.0] NVIDIA: SAUCE: WAR: hw/vfio: Retry dma_map to bypass PFNMAP #20

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6 changes: 4 additions & 2 deletions hw/vfio/container.c
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Original file line number Diff line number Diff line change
Expand Up @@ -86,8 +86,10 @@ int vfio_container_dma_map(VFIOContainer *bcontainer,
unsigned long start = vaddr - qemu_ram_get_host_addr(rb);
unsigned long offset = qemu_ram_get_fd_offset(rb);

return vioc->dma_map_file(bcontainer, iova, size, mfd, start + offset,
readonly);
if (!vioc->dma_map_file(bcontainer, iova, size, mfd, start + offset,
readonly)) {
return 0;
}
}
g_assert(vioc->dma_map);
return vioc->dma_map(bcontainer, iova, size, vaddr, readonly, mr);
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