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| author | Peter Lieven <pl@kamp.de> | 2013-03-26 10:58:38 +0100 |
|---|---|---|
| committer | Juan Quintela <quintela@redhat.com> | 2013-03-26 13:32:33 +0100 |
| commit | 70c8652bf3c1fea79b7b68864e86926715c49261 (patch) | |
| tree | 671b519d620b46d2017ce6a79f33398ecedd0479 /arch_init.c | |
| parent | f1c72795af573b24a7da5eb52375c9aba8a37972 (diff) | |
| download | qemu-70c8652bf3c1fea79b7b68864e86926715c49261.tar.gz qemu-70c8652bf3c1fea79b7b68864e86926715c49261.tar.bz2 qemu-70c8652bf3c1fea79b7b68864e86926715c49261.zip | |
migration: do not search dirty pages in bulk stage
avoid searching for dirty pages just increment the
page offset. all pages are dirty anyway.
Signed-off-by: Peter Lieven <pl@kamp.de>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Orit Wasserman <owasserm@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
Diffstat (limited to 'arch_init.c')
| -rw-r--r-- | arch_init.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/arch_init.c b/arch_init.c index 3a0d02eafa..a522735dd1 100644 --- a/arch_init.c +++ b/arch_init.c @@ -340,7 +340,13 @@ ram_addr_t migration_bitmap_find_and_reset_dirty(MemoryRegion *mr, unsigned long nr = base + (start >> TARGET_PAGE_BITS); unsigned long size = base + (int128_get64(mr->size) >> TARGET_PAGE_BITS); - unsigned long next = find_next_bit(migration_bitmap, size, nr); + unsigned long next; + + if (ram_bulk_stage && nr > base) { + next = nr + 1; + } else { + next = find_next_bit(migration_bitmap, size, nr); + } if (next < size) { clear_bit(next, migration_bitmap); |