Tina Zhang abcab6f771 vIOMMU: Enable dynamically map/unmap host dma-buf ... Host dma-buf refers to the buffers allocated in host memory and shared with guest passthrough devices or vCPU through dma-buf interface. To let guest passthrough devices access the host dma-buf, host needs to pin those buffers in memory and set up the mapping in vt-d table before those buffers are exposed to guest and do the unpin thing right after those buffers get returned from guest. BUG=b:235508487 TEST=test with a crostini VM equiped with a passthrough GPU, e.g. --vfio /sys/bus/pci/devices/0000:04:00.0,guest-address="00:1f.0",iommu=viommu Change-Id: Ie7b3db3a7f7aa8afff03425be16c952db4a5f67b Reviewed-on: https://chromium-review.googlesource.com/c/crosvm/crosvm/+/3764931 Commit-Queue: David Stevens <stevensd@chromium.org> Reviewed-by: David Stevens <stevensd@chromium.org> Tested-by: David Stevens <stevensd@chromium.org>		2022-08-10 08:14:06 +00:00
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src	vIOMMU: Enable dynamically map/unmap host dma-buf	2022-08-10 08:14:06 +00:00
Cargo.toml	crosvm: Make ballooning a compile time feature	2022-07-27 19:21:50 +00:00