diff options
| author | Avihai Horon <avihaih@nvidia.com> | 2023-09-06 18:08:51 +0300 |
|---|---|---|
| committer | Cédric Le Goater <clg@redhat.com> | 2023-09-11 08:34:06 +0200 |
| commit | 08fc4cb51774f763dcc6fd74637aa9e00eb6a0ba (patch) | |
| tree | af484c052851ff7e63c56196b25ce40e95582db1 /include | |
| parent | f543aa222da183ac37424d1ea3a65e5fb6202732 (diff) | |
| download | focaccia-qemu-08fc4cb51774f763dcc6fd74637aa9e00eb6a0ba.tar.gz focaccia-qemu-08fc4cb51774f763dcc6fd74637aa9e00eb6a0ba.zip | |
migration: Add .save_prepare() handler to struct SaveVMHandlers
Add a new .save_prepare() handler to struct SaveVMHandlers. This handler is called early, even before migration starts, and can be used by devices to perform early checks. Refactor migrate_init() to be able to return errors and call .save_prepare() from there. Suggested-by: Peter Xu <peterx@redhat.com> Signed-off-by: Avihai Horon <avihaih@nvidia.com> Reviewed-by: Peter Xu <peterx@redhat.com> Reviewed-by: Cédric Le Goater <clg@redhat.com> Signed-off-by: Cédric Le Goater <clg@redhat.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/migration/register.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/include/migration/register.h b/include/migration/register.h index 90914f32f5..2b12c6adec 100644 --- a/include/migration/register.h +++ b/include/migration/register.h @@ -20,6 +20,11 @@ typedef struct SaveVMHandlers { /* This runs inside the iothread lock. */ SaveStateHandler *save_state; + /* + * save_prepare is called early, even before migration starts, and can be + * used to perform early checks. + */ + int (*save_prepare)(void *opaque, Error **errp); void (*save_cleanup)(void *opaque); int (*save_live_complete_postcopy)(QEMUFile *f, void *opaque); int (*save_live_complete_precopy)(QEMUFile *f, void *opaque); |