Merge remote-tracking branch 'remotes/juanquintela/tags/migration/20140505' into staging

migration/next for 20140505

# gpg: Signature made Mon 05 May 2014 21:27:24 BST using RSA key ID 5872D723
# gpg: Can't check signature: public key not found

* remotes/juanquintela/tags/migration/20140505: (36 commits)
  migration: expose xbzrle cache miss rate
  migration: expose the bitmap_sync_count to the end
  migration: Add counts of updating the dirty bitmap
  XBZRLE: Fix one XBZRLE corruption issues
  migration: remove duplicate code
  Coverity: Fix failure path for qemu_accept in migration
  Init the XBZRLE.lock in ram_mig_init
  Provide init function for ram migration
  Count used RAMBlock pages for migration_dirty_pages
  Make qemu_peek_buffer loop until it gets it's data
  Disallow outward migration while awaiting incoming migration
  virtio: validate config_len on load
  virtio-net: out-of-bounds buffer write on load
  openpic: avoid buffer overrun on incoming migration
  ssi-sd: fix buffer overrun on invalid state load
  savevm: Ignore minimum_version_id_old if there is no load_state_old
  usb: sanity check setup_index+setup_len in post_load
  vmstate: s/VMSTATE_INT32_LE/VMSTATE_INT32_POSITIVE_LE/
  virtio-scsi: fix buffer overrun on invalid state load
  zaurus: fix buffer overrun on invalid state load
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

1 files changed, 8 insertions, 0 deletions

diff --git a/migration.c b/migration.c
index bd1fb912ae..52cda279af 100644
--- a/migration.c
+++ b/migration.c
@@ -174,6 +174,7 @@ static void get_xbzrle_cache_stats(MigrationInfo *info)
         info->xbzrle_cache->bytes = xbzrle_mig_bytes_transferred();
         info->xbzrle_cache->pages = xbzrle_mig_pages_transferred();
         info->xbzrle_cache->cache_miss = xbzrle_mig_pages_cache_miss();
+        info->xbzrle_cache->cache_miss_rate = xbzrle_mig_cache_miss_rate();
         info->xbzrle_cache->overflow = xbzrle_mig_pages_overflow();
     }
 }
@@ -215,6 +216,7 @@ MigrationInfo *qmp_query_migrate(Error **errp)
         info->ram->normal_bytes = norm_mig_bytes_transferred();
         info->ram->dirty_pages_rate = s->dirty_pages_rate;
         info->ram->mbps = s->mbps;
+        info->ram->dirty_sync_count = s->dirty_sync_count;
 
         if (blk_mig_active()) {
             info->has_disk = true;
@@ -248,6 +250,7 @@ MigrationInfo *qmp_query_migrate(Error **errp)
         info->ram->normal = norm_mig_pages_transferred();
         info->ram->normal_bytes = norm_mig_bytes_transferred();
         info->ram->mbps = s->mbps;
+        info->ram->dirty_sync_count = s->dirty_sync_count;
         break;
     case MIG_STATE_ERROR:
         info->has_status = true;
@@ -419,6 +422,11 @@ void qmp_migrate(const char *uri, bool has_blk, bool blk,
         return;
     }
 
+    if (runstate_check(RUN_STATE_INMIGRATE)) {
+        error_setg(errp, "Guest is waiting for an incoming migration");
+        return;
+    }
+
     if (qemu_savevm_state_blocked(errp)) {
         return;
     }