diff options
Diffstat (limited to 'hw/vfio/container-base.c')
| -rw-r--r-- | hw/vfio/container-base.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/hw/vfio/container-base.c b/hw/vfio/container-base.c index d834bd4822..56304978e1 100644 --- a/hw/vfio/container-base.c +++ b/hw/vfio/container-base.c @@ -78,7 +78,16 @@ int vfio_container_dma_map(VFIOContainerBase *bcontainer, void *vaddr, bool readonly, MemoryRegion *mr) { VFIOIOMMUClass *vioc = VFIO_IOMMU_GET_CLASS(bcontainer); + RAMBlock *rb = mr->ram_block; + int mfd = rb ? qemu_ram_get_fd(rb) : -1; + if (mfd >= 0 && vioc->dma_map_file) { + 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); + } g_assert(vioc->dma_map); return vioc->dma_map(bcontainer, iova, size, vaddr, readonly, mr); } |