Rob Bradford a6b9455402 virtio-devices: vhost_user: Add get/set of backend state support ...

The vhost-user protocol now has support for the backend to provide an
opaque blob of data (read or written through a pipe) that the VMM can
use to save/restore state after snapshot/restore or live migration.

It also adds a command for checking the backend accepts the uploaded
device state. One quirk of saving the state is that GET_VRING_BASE must
be used first to quiesce the state of the backend and flush any
in-flight requests. This then also requires saving that index for use on
the restore.

Signed-off-by: Rob Bradford <rbradford@meta.com>

2026-03-27 14:18:27 +00:00

..

transport

virtio-devices: Only try and activate if the device became ready

2026-03-26 17:20:09 +00:00

vhost_user

virtio-devices: vhost_user: Add get/set of backend state support

2026-03-27 14:18:27 +00:00

vsock

virtio-devices: Add set_notifier() method to VirtioInterrupt

2026-03-18 09:25:27 +00:00

balloon.rs

virtio-devices: introduce ActivationContext for device activation

2026-03-14 00:21:02 +00:00

block.rs

virtio-devices: block: Use logical_size() for advisory lock range

2026-03-27 11:05:07 +00:00

console.rs

build: Bump rust-vmm dependencies

2026-03-23 10:04:07 +00:00

device.rs

pci: Support injecting interrupts from externally-provided irqfds

2026-03-18 09:25:27 +00:00

epoll_helper.rs

misc: clippy: add needless_pass_by_value

2025-11-27 17:11:14 +00:00

iommu.rs

virtio-devices: introduce ActivationContext for device activation

2026-03-14 00:21:02 +00:00

lib.rs

build: Bump rust-vmm dependencies

2026-03-23 10:04:07 +00:00

mem.rs

virtio-devices: introduce ActivationContext for device activation

2026-03-14 00:21:02 +00:00

net.rs

virtio-devices: fix barrier handling in virtio-net

2026-03-23 14:04:58 +00:00

pmem.rs

virtio-devices: introduce ActivationContext for device activation

2026-03-14 00:21:02 +00:00

rng.rs

build: Bump rust-vmm dependencies

2026-03-23 10:04:07 +00:00

seccomp_filters.rs

virtio-devices: seccomp: Allow fcntl unconditionally

2026-03-23 10:04:07 +00:00

thread_helper.rs

misc: virtio-devices: drop extern crate, use modern rust

2025-11-24 22:36:46 +00:00

vdpa.rs

virtio-devices: introduce ActivationContext for device activation

2026-03-14 00:21:02 +00:00

watchdog.rs

virtio-devices: introduce ActivationContext for device activation

2026-03-14 00:21:02 +00:00