vpc: Add migration blocker
vpc caches the BAT. For migration to work, it would have to be
invalidated. Block migration for now.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
diff --git a/block/vpc.c b/block/vpc.c
index 39a3247..75d7d4a 100644
--- a/block/vpc.c
+++ b/block/vpc.c
@@ -25,6 +25,7 @@
#include "qemu-common.h"
#include "block_int.h"
#include "module.h"
+#include "migration.h"
/**************************************************************/
@@ -128,6 +129,8 @@
uint64_t last_bitmap;
#endif
+
+ Error *migration_blocker;
} BDRVVPCState;
static uint32_t vpc_checksum(uint8_t* buf, size_t size)
@@ -228,6 +231,13 @@
#endif
qemu_co_mutex_init(&s->lock);
+
+ /* Disable migration when VHD images are used */
+ error_set(&s->migration_blocker,
+ QERR_BLOCK_FORMAT_FEATURE_NOT_SUPPORTED,
+ "vpc", bs->device_name, "live migration");
+ migrate_add_blocker(s->migration_blocker);
+
return 0;
fail:
return err;
@@ -651,6 +661,9 @@
#ifdef CACHE
g_free(s->pageentry_u8);
#endif
+
+ migrate_del_blocker(s->migration_blocker);
+ error_free(s->migration_blocker);
}
static QEMUOptionParameter vpc_create_options[] = {
