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vpc: Add migration blocker

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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>
This commit is contained in:
Kevin Wolf 2011-11-22 16:51:12 +01:00
parent 2bc3166c22
commit 612ff3d887
1 changed files with 13 additions and 0 deletions
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13
block/vpc.c
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@ -25,6 +25,7 @@
#include "qemu-common.h" #include "qemu-common.h"
#include "block_int.h" #include "block_int.h"
#include "module.h" #include "module.h"
#include "migration.h"
/**************************************************************/ /**************************************************************/
@ -128,6 +129,8 @@ typedef struct BDRVVPCState {
uint64_t last_bitmap; uint64_t last_bitmap;
#endif #endif
Error *migration_blocker;
} BDRVVPCState; } BDRVVPCState;
static uint32_t vpc_checksum(uint8_t* buf, size_t size) static uint32_t vpc_checksum(uint8_t* buf, size_t size)
@ -228,6 +231,13 @@ static int vpc_open(BlockDriverState *bs, int flags)
#endif #endif
qemu_co_mutex_init(&s->lock); 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; return 0;
fail: fail:
return err; return err;
@ -651,6 +661,9 @@ static void vpc_close(BlockDriverState *bs)
#ifdef CACHE #ifdef CACHE
g_free(s->pageentry_u8); g_free(s->pageentry_u8);
#endif #endif
migrate_del_blocker(s->migration_blocker);
error_free(s->migration_blocker);
} }
static QEMUOptionParameter vpc_create_options[] = { static QEMUOptionParameter vpc_create_options[] = {