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| author | Peter Xu <peterx@redhat.com> | 2022-03-31 11:08:41 -0400 |
|---|---|---|
| committer | Dr. David Alan Gilbert <dgilbert@redhat.com> | 2022-04-21 19:36:46 +0100 |
| commit | ea2faf0c35f0f9d1f3d7c9c88637b9014575e02b (patch) | |
| tree | 106cc161d76b631696502c5d92508b7275250314 /migration | |
| parent | 7f692ec79a211d187a4edefa01396bd8ea2d02ef (diff) | |
| download | qemu-ea2faf0c35f0f9d1f3d7c9c88637b9014575e02b.zip qemu-ea2faf0c35f0f9d1f3d7c9c88637b9014575e02b.tar.gz qemu-ea2faf0c35f0f9d1f3d7c9c88637b9014575e02b.tar.bz2 | |
migration: Add pss.postcopy_requested status
This boolean flag shows whether the current page during migration is triggered
by postcopy or not. Then in ram_save_host_page() and deeper stack we'll be
able to have a reference on the priority of this page.
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Peter Xu <peterx@redhat.com>
Message-Id: <20220331150857.74406-4-peterx@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Diffstat (limited to 'migration')
| -rw-r--r-- | migration/ram.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/migration/ram.c b/migration/ram.c index 3532f64..bfcd45a 100644 --- a/migration/ram.c +++ b/migration/ram.c @@ -414,6 +414,8 @@ struct PageSearchStatus { unsigned long page; /* Set once we wrap around */ bool complete_round; + /* Whether current page is explicitly requested by postcopy */ + bool postcopy_requested; }; typedef struct PageSearchStatus PageSearchStatus; @@ -1487,6 +1489,9 @@ retry: */ static bool find_dirty_block(RAMState *rs, PageSearchStatus *pss, bool *again) { + /* This is not a postcopy requested page */ + pss->postcopy_requested = false; + pss->page = migration_bitmap_find_dirty(rs, pss->block, pss->page); if (pss->complete_round && pss->block == rs->last_seen_block && pss->page >= rs->last_page) { @@ -1981,6 +1986,7 @@ static bool get_queued_page(RAMState *rs, PageSearchStatus *pss) * really rare. */ pss->complete_round = false; + pss->postcopy_requested = true; } return !!block; |