From: Stefan Reiter <s.rei...@proxmox.com>
Postcopy may also be advised for dirty-bitmap migration only, in which
case the remote page size will not be available and we'll instead read
bogus data, blocking migration with a mismatch error if the VM uses
hugepages.
Fixes: 58110f0acb ("migration: split common postcopy out of ram postcopy")
Signed-off-by: Stefan Reiter <s.rei...@proxmox.com>
Message-Id: <20210204163522.13291-1-s.rei...@proxmox.com>
Reviewed-by: Dr. David Alan Gilbert <dgilb...@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilb...@redhat.com>
---
migration/ram.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/migration/ram.c b/migration/ram.c
index 46e9d4d145..72143da0ac 100644
--- a/migration/ram.c
+++ b/migration/ram.c
@@ -3808,7 +3808,7 @@ static int ram_load_precopy(QEMUFile *f)
}
}
/* For postcopy we need to check hugepage sizes match */
- if (postcopy_advised &&
+ if (postcopy_advised && migrate_postcopy_ram() &&
block->page_size != qemu_host_page_size) {
uint64_t remote_page_size = qemu_get_be64(f);
if (remote_page_size != block->page_size) {
--
2.29.2
