qmp: add block_stream command

Add the block_stream command, which starts copy backing file contents
into the image file.  Also add the BLOCK_JOB_COMPLETED QMP event which
is emitted when image streaming completes.  Later patches add control
over the background copy speed, cancelation, and querying running
streaming operations.

Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Acked-by: Luiz Capitulino <lcapitulino@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>

1 files changed, 4 insertions, 0 deletions

diff --git a/qerror.c b/qerror.c
index 3d95383940..2c60e10631 100644
--- a/qerror.c
+++ b/qerror.c
@@ -197,6 +197,10 @@ static const QErrorStringTable qerror_table[] = {
         .desc      = "No '%(bus)' bus found for device '%(device)'",
     },
     {
+        .error_fmt = QERR_NOT_SUPPORTED,
+        .desc      = "Not supported",
+    },
+    {
         .error_fmt = QERR_OPEN_FILE_FAILED,
         .desc      = "Could not open '%(filename)'",
     },