On 8/20/26 2:39 PM, Andrey Drobyshev wrote:
> v4 is mostly fixes suggested by Stefano.
>
> v3 -> v4:
>
> * Patch 1 (NEW) ("vhost-vsock: block CPR migration modes"): block the
> CPR modes until the support is fully in place. Make mid-series CPR
> attempts fail early and gracefully instead of crashing;
> * Patch 2 -> 3 ("vhost-vsock: don't reset connections during CPR"):
> write vhost_vsock_post_load() in its final shape, not defer to the
> last patch;
> * Patch 4 -> 5 ("vhost-vsock: preserve vhost FD during CPR"): reword
> commit message;
> * Patch 5 -> 6 ("vhost: factor out vhost_dev_init_backend()"):
> document vhost_dev_cleanup() on error;
> * Patch 7 (NEW) ("vhost: make vhost_dev_cleanup() safe on a partially
> initialized device"): split the vq->dev NULL check out of the
> ownership handoff patch;
> * Patch 9 (NEW) ("vhost: add vhost_dev_is_initialized() helper"): add
> an explicit 'initialized' field to struct vhost_dev instead of
> relying on hdev->mem;
> * Patch 7 -> 10 ("vhost-vsock: hand off device ownership across CPR"):
> - make the start guard in vhost_vsock_set_status() check
> vhost_dev_is_initialized() and vsock->owner_reset instead of
> vhost_dev.mem;
> - call vhost_dev_cleanup() if setting the guest cid fails in
> post_load;
> - lift the CPR blocker (narrow it to the ID-less case);
> - reword commit message.
>
> v3:
> https://lore.kernel.org/qemu-devel/[email protected]
>
> Andrey Drobyshev (10):
> vhost-vsock: block CPR migration modes
> vhost: add vhost_reset_owner op
> vhost-vsock: don't reset connections during CPR
> vhost-vsock: fix FD leak in realize()
> vhost-vsock: preserve vhost FD during CPR
> vhost: factor out vhost_dev_init_backend()
> vhost: make vhost_dev_cleanup() safe on a partially initialized device
> vhost: add vhost_dev_set_owner() / vhost_dev_reset_owner() helpers
> vhost: add vhost_dev_is_initialized() helper
> vhost-vsock: hand off device ownership across CPR
>
> hw/virtio/vhost-kernel.c | 6 +
> hw/virtio/vhost-vsock.c | 220 +++++++++++++++++++++++++++---
> hw/virtio/vhost.c | 57 ++++++--
> include/hw/virtio/vhost-backend.h | 1 +
> include/hw/virtio/vhost-vsock.h | 4 +
> include/hw/virtio/vhost.h | 49 +++++++
> 6 files changed, 307 insertions(+), 30 deletions(-)
>
Friendly ping
