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authorJeff Cody <jcody@redhat.com>2013-10-01 11:59:20 -0400
committerStefan Hajnoczi <stefanha@redhat.com>2013-10-02 15:24:39 +0200
commit5641bf405608cc89578fafed8ec689a19046285a (patch)
tree51ed844106be97dfc34d90502879e8cf9b95104e
parent2fa9aa59cfc472c16309c4e84547aa873423b2f5 (diff)
block: vhdx - add migration blocker
This blocks migration for VHDX image files, until the functionality can be supported. Signed-off-by: Jeff Cody <jcody@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
-rw-r--r--block/vhdx.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/block/vhdx.c b/block/vhdx.c
index b8aa49ce4e..6cb04122bb 100644
--- a/block/vhdx.c
+++ b/block/vhdx.c
@@ -20,6 +20,7 @@
#include "qemu/module.h"
#include "qemu/crc32c.h"
#include "block/vhdx.h"
+#include "migration/migration.h"
/* Several metadata and region table data entries are identified by
@@ -159,6 +160,7 @@ typedef struct BDRVVHDXState {
VHDXParentLocatorHeader parent_header;
VHDXParentLocatorEntry *parent_entries;
+ Error *migration_blocker;
} BDRVVHDXState;
uint32_t vhdx_checksum_calc(uint32_t crc, uint8_t *buf, size_t size,
@@ -806,6 +808,12 @@ static int vhdx_open(BlockDriverState *bs, QDict *options, int flags,
/* TODO: differencing files, write */
+ /* Disable migration when VHDX images are used */
+ error_set(&s->migration_blocker,
+ QERR_BLOCK_FORMAT_FEATURE_NOT_SUPPORTED,
+ "vhdx", bs->device_name, "live migration");
+ migrate_add_blocker(s->migration_blocker);
+
return 0;
fail:
qemu_vfree(s->headers[0]);
@@ -952,6 +960,8 @@ static void vhdx_close(BlockDriverState *bs)
qemu_vfree(s->headers[1]);
qemu_vfree(s->bat);
qemu_vfree(s->parent_entries);
+ migrate_del_blocker(s->migration_blocker);
+ error_free(s->migration_blocker);
}
static BlockDriver bdrv_vhdx = {