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qemu: migration: Create qcow2 v3 images for VIR_MIGRATE_NON_SHARED_DISK

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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 shared storage.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
This commit is contained in:
Peter Krempa 2021-02-17 14:45:49 +01:00
parent 253bce93d3
commit 8da9c7456d
1 changed files with 7 additions and 1 deletions
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8
src/qemu/qemu_migration.c
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@ -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);