[GIT PULL] vhost,virtio: fixes, features, cleanups

[GIT PULL] vhost,virtio: fixes, features, cleanups

[Michael S. Tsirkin]

Hi Linus,
I have a bunch more fixes under review, but let's get this off my plate
first. Thanks!

The following changes since commit 48a4ee65e677559776349128e6a81a6041986c99:

  vduse: return compat ioctl results directly (2026-09-08 03:58:27 -0400)

are available in the Git repository at:

  https://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git tags/for_linus

for you to fetch changes up to c69023b5e16e5ffe9368603dca76d85bd544ee57:

  tools/virtio: add missing device-id/virtio.h wrapper header (2026-10-08 18:30:04 -0400)

----------------------------------------------------------------
vhost,virtio: fixes, features, cleanups

This adds CPR support for vhost.

Plus some fixes, notably for a host of races we had when callback fire
around device reset.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

----------------------------------------------------------------
Andrey Drobyshev (3):
      vhost/vsock: suppress EHOSTUNREACH fast-fail during CPR pause
      vhost/vsock: re-scan TX virtqueue on device start
      vhost: synchronize with RCU readers when freeing workers

Karl Mehltretter (6):
      virtio_ccw: fix synchronize_cbs() after interrupt fallback
      virtio_ccw: always take irq_lock in the classic interrupt handler
      remoteproc: implement synchronize_cbs() for virtio devices
      um: virtio_uml: implement synchronize_cbs()
      platform/mellanox: mlxbf-tmfifo: implement synchronize_cbs()
      virtio_vdpa: implement synchronize_cbs()

Longjun Tang (1):
      tools/virtio: add missing device-id/virtio.h wrapper header

Michael S. Tsirkin (3):
      virtio: synchronize callbacks after device reset
      virtio_pci_modern: move avq cleanup from reset to del_vqs
      virtio_pci: drop callback sync on reset

Pavel Tikhomirov (2):
      vhost/vsock: split out vhost_vsock_drop_backends helper
      vhost/vsock: add VHOST_RESET_OWNER ioctl

 arch/um/drivers/virtio_uml.c             | 10 ++++
 drivers/platform/mellanox/mlxbf-tmfifo.c | 15 ++++++
 drivers/remoteproc/remoteproc_core.c     | 12 +++++
 drivers/remoteproc/remoteproc_virtio.c   | 39 +++++++++++---
 drivers/s390/virtio/virtio_ccw.c         |  6 +--
 drivers/vhost/net.c                      |  4 +-
 drivers/vhost/scsi.c                     |  2 +-
 drivers/vhost/test.c                     |  4 +-
 drivers/vhost/vdpa.c                     |  4 +-
 drivers/vhost/vhost.c                    | 26 ++++++++--
 drivers/vhost/vhost.h                    |  5 +-
 drivers/vhost/vsock.c                    | 89 +++++++++++++++++++++++++-------
 drivers/virtio/virtio.c                  |  2 +
 drivers/virtio/virtio_pci_legacy.c       |  2 -
 drivers/virtio/virtio_pci_modern.c       | 15 +++---
 drivers/virtio/virtio_vdpa.c             | 34 ++++++++++--
 include/linux/remoteproc.h               |  3 ++
 tools/virtio/linux/device-id/virtio.h    |  2 +
 18 files changed, 215 insertions(+), 59 deletions(-)
 create mode 100644 tools/virtio/linux/device-id/virtio.h