feat(vfio): support device p2p DMA by dma-buf fd

[Lencerf]

No description provided.

[coveralls]

Coverage Report for CI Build 30737659124

Coverage decreased (-0.1%) to 27.655%

Details

• Coverage decreased (-0.1%) from the base build.
• Patch coverage: 144 uncovered changes across 9 files (2 of 146 lines covered, 1.37%).
• 4 coverage regressions across 3 files.

Uncovered Changes

File	Changed	Covered	%
alioth/src/vfio/iommu.rs	40	0	0.0%
alioth/src/vfio/pci.rs	30	0	0.0%
alioth/src/vfio/device.rs	18	0	0.0%
alioth/src/mem/mem.rs	19	2	10.53%
alioth/src/board/board.rs	12	0	0.0%
alioth/src/vfio/container.rs	12	0	0.0%
alioth/src/virtio/vu/frontend.rs	12	0	0.0%
alioth/src/board/board_amd64/sev.rs	2	0	0.0%
alioth/src/sys/linux/ioctl.rs	1	0	0.0%

Coverage Regressions

4 previously-covered lines in 3 files lost coverage.

File	Lines Losing Coverage	Coverage
alioth/src/vfio/iommu.rs	2	0.0%
alioth/src/mem/mem.rs	1	45.72%
alioth/src/vfio/pci.rs	1	0.0%

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Coverage Stats

Relevant Lines:	14823
Covered Lines:	3968
Line Coverage:	26.77%
Relevant Branches:	1268
Covered Branches:	482
Branch Coverage:	38.01%
Branches in Coverage %:	Yes
Coverage Strength:	39.89 hits per line

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💛 - Coveralls