Saravanan D 794997f241 pci: vfio: Recover failed state transitions ...

A failed VFIO_DEVICE_FEATURE_MIG_DEVICE_STATE set can leave the device
in its original state, midway along a combination transition, or in
ERROR. The uAPI leaves recovery to the user, and from ERROR only a
VFIO_DEVICE_RESET brings the device back to RUNNING.

Previously a failed transition left the device wherever it landed, so
one that reached ERROR stayed wedged for the life of the guest even
though a reset would have recovered it.

On a failed transition the caller now names an optional recovery state
to attempt first, falling back to a device reset. Pause, resume, and
the return to STOP after STOP_COPY name no recovery state, so their
failure resets directly. The original transition error is always
propagated and recovery failures are logged.

Signed-off-by: Saravanan D <saravanand@crusoe.ai>

2026-07-15 22:45:08 +00:00

..

bus.rs

vmm: move BAR mapping registration from PciBus to DeviceManager

2026-06-12 08:19:42 +00:00

configuration.rs

pci: Fix clippy: use mem::take instead of drain().collect()

2026-07-07 08:31:22 +00:00

device.rs

pci: streamline error messages

2026-06-25 19:13:13 +00:00

lib.rs

pci: trim qualified paths

2026-06-10 20:47:59 +00:00

mmap.rs

pci: align VFIO MMIO mmap to a huge page boundary

2026-07-05 17:08:50 +00:00

msi.rs

pci: trim qualified paths

2026-06-10 20:47:59 +00:00

msix.rs

pci: msix: Reject mis-sized MSI-X table and PBA reads

2026-06-17 19:48:43 +00:00

vfio_user.rs

pci: reevaluate #[allow] attributes

2026-06-11 09:19:35 +00:00

vfio.rs

pci: vfio: Recover failed state transitions

2026-07-15 22:45:08 +00:00