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| author | Avihai Horon <avihaih@nvidia.com> | 2023-06-28 10:31:11 +0300 |
|---|---|---|
| committer | Cédric Le Goater <clg@redhat.com> | 2023-06-30 06:02:51 +0200 |
| commit | 808642a2f6407157f8cfb48ba6c2d28efd038d62 (patch) | |
| tree | ee25880b0b05a512dbae45f0be645fdd5e6d2c0a /include/hw/vfio/vfio-common.h | |
| parent | c17408892319712c12357e5d1c6b305499c58c2a (diff) | |
| download | focaccia-qemu-808642a2f6407157f8cfb48ba6c2d28efd038d62.tar.gz focaccia-qemu-808642a2f6407157f8cfb48ba6c2d28efd038d62.zip | |
vfio/migration: Reset bytes_transferred properly
Currently, VFIO bytes_transferred is not reset properly:
1. bytes_transferred is not reset after a VM snapshot (so a migration
following a snapshot will report incorrect value).
2. bytes_transferred is a single counter for all VFIO devices, however
upon migration failure it is reset multiple times, by each VFIO
device.
Fix it by introducing a new function vfio_reset_bytes_transferred() and
calling it during migration and snapshot start.
Remove existing bytes_transferred reset in VFIO migration state
notifier, which is not needed anymore.
Fixes: 3710586caa5d ("qapi: Add VFIO devices migration stats in Migration stats")
Signed-off-by: Avihai Horon <avihaih@nvidia.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Reviewed-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Cédric Le Goater <clg@redhat.com>
Diffstat (limited to 'include/hw/vfio/vfio-common.h')
| -rw-r--r-- | include/hw/vfio/vfio-common.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/hw/vfio/vfio-common.h b/include/hw/vfio/vfio-common.h index 6d1b8487c3..1d19c6f251 100644 --- a/include/hw/vfio/vfio-common.h +++ b/include/hw/vfio/vfio-common.h @@ -229,6 +229,7 @@ int vfio_block_multiple_devices_migration(Error **errp); void vfio_unblock_multiple_devices_migration(void); int vfio_block_giommu_migration(Error **errp); int64_t vfio_mig_bytes_transferred(void); +void vfio_reset_bytes_transferred(void); #ifdef CONFIG_LINUX int vfio_get_region_info(VFIODevice *vbasedev, int index, |