[PATCH v2 04/15] qemu: migration: Create qcow2 v3 images for VIR_MIGRATE_NON_SHARED_DISK
Use the new format when pre-creating the image for the user. Users
wishing to use the legacy format can always provide their own images or
use hared storage.
Signed-off-by: Peter Krempa <pkrempa(a)redhat.com>
---
src/qemu/qemu_migration.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/src/qemu/qemu_migration.c b/src/qemu/qemu_migration.c
index e8e35c1c7c..94b9b34ca0 100644
--- a/src/qemu/qemu_migration.c
+++ b/src/qemu/qemu_migration.c
@@ -180,6 +180,7 @@ qemuMigrationDstPrecreateDisk(virConnectPtr *conn,
char *volStr = NULL;
g_auto(virBuffer) buf = VIR_BUFFER_INITIALIZER;
const char *format = NULL;
+ const char *compat = NULL;
unsigned int flags = 0;
VIR_DEBUG("Precreate disk type=%s",
virStorageTypeToString(disk->src->type));
@@ -212,8 +213,11 @@ qemuMigrationDstPrecreateDisk(virConnectPtr *conn,
if (!(pool = virStoragePoolLookupByTargetPath(*conn, basePath)))
goto cleanup;
format = virStorageFileFormatTypeToString(disk->src->format);
- if (disk->src->format == VIR_STORAGE_FILE_QCOW2)
+ if (disk->src->format == VIR_STORAGE_FILE_QCOW2) {
flags |= VIR_STORAGE_VOL_CREATE_PREALLOC_METADATA;
+ /* format qcow2v3 image */
+ compat = "1.1";
+ }
break;
case VIR_STORAGE_TYPE_VOLUME:
@@ -261,6 +265,8 @@ qemuMigrationDstPrecreateDisk(virConnectPtr *conn,
virBufferAddLit(&buf, "<target>\n");
virBufferAdjustIndent(&buf, 2);
virBufferAsprintf(&buf, "<format type='%s'/>\n",
format);
+ if (compat)
+ virBufferAsprintf(&buf, "<compat>%s</compat>\n",
compat);
virBufferAdjustIndent(&buf, -2);
virBufferAddLit(&buf, "</target>\n");
virBufferAdjustIndent(&buf, -2);
--
2.29.2