@@ -2075,6 +2075,26 @@ static ImageInfoSpecific *vmdk_get_specific_info(BlockDriverState *bs)
return spec_info;
}
+static int vmdk_get_info(BlockDriverState *bs, BlockDriverInfo *bdi)
+{
+ int i;
+ BDRVVmdkState *s = bs->opaque;
+ assert(s->num_extents);
+ bdi->is_compressed = s->extents[0].compressed;
+ if (!s->extents[0].flat) {
+ bdi->cluster_size = s->extents[0].cluster_sectors << BDRV_SECTOR_BITS;
+ }
+ /* See if we have multiple extents but they have different cases */
+ for (i = 1; i < s->num_extents; i++) {
+ if (bdi->is_compressed != s->extents[i].compressed ||
+ (bdi->cluster_size && bdi->cluster_size !=
+ s->extents[i].cluster_sectors << BDRV_SECTOR_BITS)) {
+ return -ENOTSUP;
+ }
+ }
+ return 0;
+}
+
static QEMUOptionParameter vmdk_create_options[] = {
{
.name = BLOCK_OPT_SIZE,
@@ -2131,6 +2151,7 @@ static BlockDriver bdrv_vmdk = {
.bdrv_has_zero_init = vmdk_has_zero_init,
.bdrv_get_specific_info = vmdk_get_specific_info,
.bdrv_refresh_limits = vmdk_refresh_limits,
+ .bdrv_get_info = vmdk_get_info,
.create_options = vmdk_create_options,
};
@@ -2050,6 +2050,7 @@ qemu-img: Could not open 'TEST_DIR/t.IMGFMT': File truncated, expecting at least
image: TEST_DIR/iotest-version3.IMGFMT
file format: IMGFMT
virtual size: 1.0G (1073741824 bytes)
+cluster_size: 65536
=== Testing 4TB monolithicFlat creation and IO ===
Formatting 'TEST_DIR/iotest-version3.IMGFMT', fmt=IMGFMT size=4398046511104
This will return cluster_size and is_compressed to caller, if all the extents has the same value (or there's only one extent). Otherwise return -ENOTSUP. cluster_size is only reported for sparse formats. Signed-off-by: Fam Zheng <famz@redhat.com> --- block/vmdk.c | 21 +++++++++++++++++++++ tests/qemu-iotests/059.out | 1 + 2 files changed, 22 insertions(+)