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authorAvihai Horon <avihaih@nvidia.com>2023-06-28 10:31:11 +0300
committerCédric Le Goater <clg@redhat.com>2023-06-30 06:02:51 +0200
commit808642a2f6407157f8cfb48ba6c2d28efd038d62 (patch)
treeee25880b0b05a512dbae45f0be645fdd5e6d2c0a /migration/migration.h
parentc17408892319712c12357e5d1c6b305499c58c2a (diff)
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 'migration/migration.h')
-rw-r--r--migration/migration.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/migration/migration.h b/migration/migration.h
index c859a0d35e..a80b22b703 100644
--- a/migration/migration.h
+++ b/migration/migration.h
@@ -514,6 +514,7 @@ bool migration_rate_limit(void);
void migration_cancel(const Error *error);
void populate_vfio_info(MigrationInfo *info);
+void reset_vfio_bytes_transferred(void);
void postcopy_temp_page_reset(PostcopyTmpPage *tmp_page);
#endif