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| author | William Henderson <william.henderson@nutanix.com> | 2023-09-15 16:07:01 +0100 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2023-09-15 16:07:01 +0100 |
| commit | 190f85bf9c114bf7c981bb8908394368f84c0c04 (patch) | |
| tree | 92273a811fc3a8af74a5f62cec8871f345d6999b /README.md | |
| parent | 1569a37a54ecb63bd4008708c76339ccf7d06115 (diff) | |
| download | libvfio-user-190f85bf9c114bf7c981bb8908394368f84c0c04.zip libvfio-user-190f85bf9c114bf7c981bb8908394368f84c0c04.tar.gz libvfio-user-190f85bf9c114bf7c981bb8908394368f84c0c04.tar.bz2 | |
adapt to VFIO live migration v2 (#782)
This commit adapts the vfio-user protocol specification and the libvfio-user
implementation to v2 of the VFIO live migration interface, as used in the kernel
and QEMU.
The differences between v1 and v2 are discussed in this email thread [1], and we
slightly differ from upstream VFIO v2 in that instead of transferring data over
a new FD, we use the existing UNIX socket with new commands
VFIO_USER_MIG_DATA_READ/WRITE. We also don't yet use P2P states.
The updated spec was submitted to qemu-devel [2].
[1] https://lore.kernel.org/all/20220130160826.32449-9-yishaih@nvidia.com/
[2] https://lore.kernel.org/all/20230718094150.110183-1-william.henderson@nutanix.com/
Signed-off-by: William Henderson <william.henderson@nutanix.com>
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