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migration: introduce postcopy-only pending

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There would be savevm states (dirty-bitmap) which can migrate only in
postcopy stage. The corresponding pending is introduced here.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Message-id: 20180313180320.339796-6-vsementsov@virtuozzo.com
This commit is contained in:
Vladimir Sementsov-Ogievskiy 2018-03-13 15:34:00 -04:00 • committed by John Snow
parent 4f43e9535b
commit 4799502640
8 changed files with 46 additions and 26 deletions
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9
migration/ram.c
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@ -2370,8 +2370,9 @@ static int ram_save_complete(QEMUFile *f, void *opaque)
}
static void ram_save_pending(QEMUFile *f, void *opaque, uint64_t max_size,
uint64_t *non_postcopiable_pending,
uint64_t *postcopiable_pending)
uint64_t *res_precopy_only,
uint64_t *res_compatible,
uint64_t *res_postcopy_only)
{
RAMState **temp = opaque;
RAMState *rs = *temp;
@ -2391,9 +2392,9 @@ static void ram_save_pending(QEMUFile *f, void *opaque, uint64_t max_size,
if (migrate_postcopy_ram()) {
/* We can do postcopy, and all the data is postcopiable */
*postcopiable_pending += remaining_size;
*res_compatible += remaining_size;
} else {
*non_postcopiable_pending += remaining_size;
*res_precopy_only += remaining_size;
}
}