On 5/15/24 15:21, Avihai Horon wrote:
Hello,
This series adds a new QAPI event for VFIO device migration state
change. This event will be emitted when a VFIO device changes its
state, for example, during migration or when stopping/starting the
guest.
This event can be used by management applications to get updates on the
current state of the VFIO device for their own purposes.
A new per VFIO device capability, "migration-events", is added so events
can be enabled only for the required devices. It is disabled by default.
Feedback/comments are appreciated,
Applied to vfio-next.
Thanks,
C.
Thanks.
Changes from v2 [2]:
* Added assert for vbasedev->ops->vfio_get_object and obj. (Cedric)
* Renamed set_state() to vfio_migration_set_device_state(). (Cedric)
* Enhanced tracing of device state change. (Cedric)
* Added Cedric's R-b.
Changes from v1 [1]:
* Added more info to patch #1 commit mesasge. (Markus)
* Renamed VFIODeviceMigState to VfioMigrationState and
VFIO_DEVICE_MIG_STATE_CHANGED to VFIO_MIGRATION. (Joao, Markus)
* Added qom-path and qdev id to VFIO_MIGRATION event data. (Markus)
* Handled no-op state transitions in vfio_migration_set_state().
(Cedric)
* Added helper to set VFIO state and emit VFIO event. (Peter)
[1]
https://lore.kernel.org/qemu-devel/[email protected]/
[2]
https://lore.kernel.org/qemu-devel/[email protected]/
Avihai Horon (4):
qapi/vfio: Add VFIO migration QAPI event
vfio/migration: Emit VFIO migration QAPI event
vfio/migration: Don't emit STOP_COPY VFIO migration QAPI event twice
vfio/migration: Enhance VFIO migration state tracing
MAINTAINERS | 1 +
qapi/qapi-schema.json | 1 +
qapi/vfio.json | 67 +++++++++++++++++++++++++++++++++
include/hw/vfio/vfio-common.h | 1 +
hw/vfio/migration.c | 71 ++++++++++++++++++++++++++++++++---
hw/vfio/pci.c | 2 +
hw/vfio/trace-events | 3 +-
qapi/meson.build | 1 +
8 files changed, 141 insertions(+), 6 deletions(-)
create mode 100644 qapi/vfio.json
