| Message ID | 20240515132138.4560-1-avihaih@nvidia.com (mailing list archive) |
|---|---|
| Headers | show |
| Series | qapi/vfio: Add VFIO migration QAPI event | expand |
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/20240430051621.19597-1-avihaih@nvidia.com/ > > [2] > https://lore.kernel.org/qemu-devel/20240509090954.16447-1-avihaih@nvidia.com/ > > 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 >