From 330cc46279f2fcd6f2d41d4e8beda8038c7a2fd9 Mon Sep 17 00:00:00 2001
From: Max Reitz <mreitz@redhat.com>
Date: Thu, 7 Nov 2013 13:18:21 +0100
Subject: [PATCH 87/87] vmdk: Implment bdrv_get_specific_info
RH-Author: Max Reitz <mreitz@redhat.com>
Message-id: <1383756824-6921-22-git-send-email-mreitz@redhat.com>
Patchwork-id: 55576
O-Subject: [RHEL-7.0 qemu-kvm PATCH v2 21/21] vmdk: Implment bdrv_get_specific_info
Bugzilla: 980771
RH-Acked-by: Kevin Wolf <kwolf@redhat.com>
RH-Acked-by: Fam Zheng <famz@redhat.com>
RH-Acked-by: Jeffrey Cody <jcody@redhat.com>
From: Fam Zheng <famz@redhat.com>
BZ: 980771
Implement .bdrv_get_specific_info to return the extent information.
Signed-off-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
(cherry picked from commit f4c129a38a5430b7342a7a23f53a22831154612f)
Signed-off-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
---
block/vmdk.c | 68 +++++++++++++++++++++++++++++++++++++++++++-
qapi-schema.json | 24 +++++++++++++++-
tests/qemu-iotests/059 | 2 +-
tests/qemu-iotests/059.out | 5 +--
4 files changed, 93 insertions(+), 6 deletions(-)
diff --git a/block/vmdk.c b/block/vmdk.c
index 8bef9f2..a3267fe 100644
--- a/block/vmdk.c
+++ b/block/vmdk.c
@@ -106,6 +106,7 @@ typedef struct VmdkExtent {
uint32_t l2_cache_counts[L2_CACHE_SIZE];
int64_t cluster_sectors;
+ char *type;
} VmdkExtent;
typedef struct BDRVVmdkState {
@@ -113,11 +114,13 @@ typedef struct BDRVVmdkState {
uint64_t desc_offset;
bool cid_updated;
bool cid_checked;
+ uint32_t cid;
uint32_t parent_cid;
int num_extents;
/* Extent array with num_extents entries, ascend ordered by address */
VmdkExtent *extents;
Error *migration_blocker;
+ char *create_type;
} BDRVVmdkState;
typedef struct VmdkMetaData {
@@ -214,6 +217,7 @@ static void vmdk_free_extents(BlockDriverState *bs)
g_free(e->l1_table);
g_free(e->l2_cache);
g_free(e->l1_backup_table);
+ g_free(e->type);
if (e->file != bs->file) {
bdrv_delete(e->file);
}
@@ -534,6 +538,7 @@ static int vmdk_open_vmdk4(BlockDriverState *bs,
uint32_t l1_size, l1_entry_sectors;
VMDK4Header header;
VmdkExtent *extent;
+ BDRVVmdkState *s = bs->opaque;
int64_t l1_backup_offset = 0;
ret = bdrv_pread(file, sizeof(magic), &header, sizeof(header));
@@ -549,6 +554,10 @@ static int vmdk_open_vmdk4(BlockDriverState *bs,
}
}
+ if (!s->create_type) {
+ s->create_type = g_strdup("monolithicSparse");
+ }
+
if (le64_to_cpu(header.gd_offset) == VMDK4_GD_AT_END) {
/*
* The footer takes precedence over the header, so read it in. The
@@ -709,6 +718,8 @@ static int vmdk_parse_extents(const char *desc, BlockDriverState *bs,
int64_t flat_offset;
char extent_path[PATH_MAX];
BlockDriverState *extent_file;
+ BDRVVmdkState *s = bs->opaque;
+ VmdkExtent *extent;
while (*p) {
/* parse extent line:
@@ -749,7 +760,6 @@ static int vmdk_parse_extents(const char *desc, BlockDriverState *bs,
/* save to extents array */
if (!strcmp(type, "FLAT") || !strcmp(type, "VMFS")) {
/* FLAT extent */
- VmdkExtent *extent;
ret = vmdk_add_extent(bs, extent_file, true, sectors,
0, 0, 0, 0, 0, &extent, errp);
@@ -764,10 +774,12 @@ static int vmdk_parse_extents(const char *desc, BlockDriverState *bs,
bdrv_delete(extent_file);
return ret;
}
+ extent = &s->extents[s->num_extents - 1];
} else {
error_setg(errp, "Unsupported extent type '%s'", type);
return -ENOTSUP;
}
+ extent->type = g_strdup(type);
next_line:
/* move to next line */
while (*p && *p != '\n') {
@@ -812,6 +824,7 @@ static int vmdk_open_desc_file(BlockDriverState *bs, int flags,
ret = -ENOTSUP;
goto exit;
}
+ s->create_type = g_strdup(ct);
s->desc_offset = 0;
ret = vmdk_parse_extents(buf, bs, bs->file->filename, errp);
exit:
@@ -838,6 +851,7 @@ static int vmdk_open(BlockDriverState *bs, QDict *options, int flags,
if (ret) {
goto fail;
}
+ s->cid = vmdk_read_cid(bs, 0);
s->parent_cid = vmdk_read_cid(bs, 1);
qemu_co_mutex_init(&s->lock);
@@ -850,6 +864,8 @@ static int vmdk_open(BlockDriverState *bs, QDict *options, int flags,
return 0;
fail:
+ g_free(s->create_type);
+ s->create_type = NULL;
vmdk_free_extents(bs);
return ret;
}
@@ -1761,6 +1777,7 @@ static void vmdk_close(BlockDriverState *bs)
BDRVVmdkState *s = bs->opaque;
vmdk_free_extents(bs);
+ g_free(s->create_type);
migrate_del_blocker(s->migration_blocker);
error_free(s->migration_blocker);
@@ -1822,6 +1839,54 @@ static int vmdk_has_zero_init(BlockDriverState *bs)
return 1;
}
+static ImageInfo *vmdk_get_extent_info(VmdkExtent *extent)
+{
+ ImageInfo *info = g_new0(ImageInfo, 1);
+
+ *info = (ImageInfo){
+ .filename = g_strdup(extent->file->filename),
+ .format = g_strdup(extent->type),
+ .virtual_size = extent->sectors * BDRV_SECTOR_SIZE,
+ .compressed = extent->compressed,
+ .has_compressed = extent->compressed,
+ .cluster_size = extent->cluster_sectors * BDRV_SECTOR_SIZE,
+ .has_cluster_size = !extent->flat,
+ };
+
+ return info;
+}
+
+static ImageInfoSpecific *vmdk_get_specific_info(BlockDriverState *bs)
+{
+ int i;
+ BDRVVmdkState *s = bs->opaque;
+ ImageInfoSpecific *spec_info = g_new0(ImageInfoSpecific, 1);
+ ImageInfoList **next;
+
+ *spec_info = (ImageInfoSpecific){
+ .kind = IMAGE_INFO_SPECIFIC_KIND_VMDK,
+ {
+ .vmdk = g_new0(ImageInfoSpecificVmdk, 1),
+ },
+ };
+
+ *spec_info->vmdk = (ImageInfoSpecificVmdk) {
+ .create_type = g_strdup(s->create_type),
+ .cid = s->cid,
+ .parent_cid = s->parent_cid,
+ };
+
+ next = &spec_info->vmdk->extents;
+ for (i = 0; i < s->num_extents; i++) {
+ *next = g_new0(ImageInfoList, 1);
+ (*next)->value = vmdk_get_extent_info(&s->extents[i]);
+ (*next)->next = NULL;
+ next = &(*next)->next;
+ }
+
+ return spec_info;
+}
+
static QEMUOptionParameter vmdk_create_options[] = {
{
.name = BLOCK_OPT_SIZE,
@@ -1874,6 +1939,7 @@ static BlockDriver bdrv_vmdk = {
.bdrv_co_get_block_status = vmdk_co_get_block_status,
.bdrv_get_allocated_file_size = vmdk_get_allocated_file_size,
.bdrv_has_zero_init = vmdk_has_zero_init,
+ .bdrv_get_specific_info = vmdk_get_specific_info,
.create_options = vmdk_create_options,
};
diff --git a/qapi-schema.json b/qapi-schema.json
index 99b05b7..64696a9 100644
--- a/qapi-schema.json
+++ b/qapi-schema.json
@@ -225,6 +225,27 @@
} }
##
+# @ImageInfoSpecificVmdk:
+#
+# @create_type: The create type of VMDK image
+#
+# @cid: Content id of image
+#
+# @parent-cid: Parent VMDK image's cid
+#
+# @extents: List of extent files
+#
+# Since: 1.7
+##
+{ 'type': 'ImageInfoSpecificVmdk',
+ 'data': {
+ 'create-type': 'str',
+ 'cid': 'int',
+ 'parent-cid': 'int',
+ 'extents': ['ImageInfo']
+ } }
+
+##
# @ImageInfoSpecific:
#
# A discriminated record of image format specific information structures.
@@ -234,7 +255,8 @@
{ 'union': 'ImageInfoSpecific',
'data': {
- 'qcow2': 'ImageInfoSpecificQCow2'
+ 'qcow2': 'ImageInfoSpecificQCow2',
+ 'vmdk': 'ImageInfoSpecificVmdk'
} }
##
diff --git a/tests/qemu-iotests/059 b/tests/qemu-iotests/059
index 26d4538..36103e1 100755
--- a/tests/qemu-iotests/059
+++ b/tests/qemu-iotests/059
@@ -69,7 +69,7 @@ poke_file "$TEST_IMG" "$grain_table_size_offset" "\x01\x00\x00\x00"
echo "=== Testing monolithicFlat creation and opening ==="
echo
IMGOPTS="subformat=monolithicFlat" _make_test_img 2G
-$QEMU_IMG info $TEST_IMG | _filter_testdir
+_img_info
echo
echo "=== Testing monolithicFlat with zeroed_grain ==="
diff --git a/tests/qemu-iotests/059.out b/tests/qemu-iotests/059.out
index 2b29ca9..5829794 100644
--- a/tests/qemu-iotests/059.out
+++ b/tests/qemu-iotests/059.out
@@ -18,10 +18,9 @@ no file open, try 'help open'
=== Testing monolithicFlat creation and opening ===
Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=2147483648
-image: TEST_DIR/t.vmdk
-file format: vmdk
+image: TEST_DIR/t.IMGFMT
+file format: IMGFMT
virtual size: 2.0G (2147483648 bytes)
-disk size: 4.0K
=== Testing monolithicFlat with zeroed_grain ===
qemu-img: TEST_DIR/t.IMGFMT: Flat image can't enable zeroed grain
--
1.7.1