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[Qemu-devel] [PATCH v2 4/6] qcow2: Add support for ImageInfoSpecific
From: |
Max Reitz |
Subject: |
[Qemu-devel] [PATCH v2 4/6] qcow2: Add support for ImageInfoSpecific |
Date: |
Fri, 6 Sep 2013 15:12:32 +0200 |
Add a new ImageInfoSpecificQCow2 type as a subtype of ImageInfoSpecific.
This contains the compatibility level as a string and an optional
lazy_refcounts boolean (optional means mandatory for compat >= 1.1 and
not available for compat == 0.10).
In qcow2_get_info, fill the BlockDriverInfo.format_specific field with
that information.
Signed-off-by: Max Reitz <address@hidden>
---
block/qcow2.c | 12 ++++++++++++
qapi-schema.json | 16 ++++++++++++++++
2 files changed, 28 insertions(+)
diff --git a/block/qcow2.c b/block/qcow2.c
index 4bc679a..e088c0a 100644
--- a/block/qcow2.c
+++ b/block/qcow2.c
@@ -1755,8 +1755,20 @@ static int64_t qcow2_vm_state_offset(BDRVQcowState *s)
static int qcow2_get_info(BlockDriverState *bs, BlockDriverInfo *bdi)
{
BDRVQcowState *s = bs->opaque;
+
bdi->cluster_size = s->cluster_size;
bdi->vm_state_offset = qcow2_vm_state_offset(s);
+
+ bdi->format_specific = g_new0(ImageInfoSpecific, 1);
+ bdi->format_specific->kind = IMAGE_INFO_SPECIFIC_KIND_QCOW2;
+ bdi->format_specific->qcow2 = g_new0(ImageInfoSpecificQCow2, 1);
+ if (s->qcow_version == 2) {
+ bdi->format_specific->qcow2->compat = g_strdup("0.10");
+ } else if (s->qcow_version == 3) {
+ bdi->format_specific->qcow2->compat = g_strdup("1.1");
+ bdi->format_specific->qcow2->lazy_refcounts = s->use_lazy_refcounts;
+ bdi->format_specific->qcow2->has_lazy_refcounts = true;
+ }
return 0;
}
diff --git a/qapi-schema.json b/qapi-schema.json
index eebf851..cadf40b 100644
--- a/qapi-schema.json
+++ b/qapi-schema.json
@@ -210,6 +210,21 @@
'vm-clock-sec': 'int', 'vm-clock-nsec': 'int' } }
##
+# @ImageInfoSpecificQCow2:
+#
+# @compat: compatibility level
+#
+# @lazy-refcounts: #optional on or off; only valid for compat >= 1.1
+#
+# Since: 1.7
+##
+{ 'type': 'ImageInfoSpecificQCow2',
+ 'data': {
+ 'compat': 'str',
+ '*lazy-refcounts': 'bool'
+ } }
+
+##
# @ImageInfoSpecific:
#
# A discriminated record of image format specific information structures.
@@ -219,6 +234,7 @@
{ 'union': 'ImageInfoSpecific',
'data': {
+ 'qcow2': 'ImageInfoSpecificQCow2'
} }
##
--
1.8.3.1
- [Qemu-devel] [PATCH v2 2/6] block: Add ImageInfoSpecific to BlockDriverInfo, (continued)
- [Qemu-devel] [PATCH v2 2/6] block: Add ImageInfoSpecific to BlockDriverInfo, Max Reitz, 2013/09/06
- Re: [Qemu-devel] [PATCH v2 2/6] block: Add ImageInfoSpecific to BlockDriverInfo, Fam Zheng, 2013/09/09
- Re: [Qemu-devel] [PATCH v2 2/6] block: Add ImageInfoSpecific to BlockDriverInfo, Max Reitz, 2013/09/10
- Re: [Qemu-devel] [PATCH v2 2/6] block: Add ImageInfoSpecific to BlockDriverInfo, Fam Zheng, 2013/09/10
- Re: [Qemu-devel] [PATCH v2 2/6] block: Add ImageInfoSpecific to BlockDriverInfo, Max Reitz, 2013/09/10
- Re: [Qemu-devel] [PATCH v2 2/6] block: Add ImageInfoSpecific to BlockDriverInfo, Fam Zheng, 2013/09/10
- Re: [Qemu-devel] [PATCH v2 2/6] block: Add ImageInfoSpecific to BlockDriverInfo, Max Reitz, 2013/09/10
[Qemu-devel] [PATCH v2 3/6] block/qapi: Human-readable ImageInfoSpecific dump, Max Reitz, 2013/09/06
[Qemu-devel] [PATCH v2 4/6] qcow2: Add support for ImageInfoSpecific,
Max Reitz <=
[Qemu-devel] [PATCH v2 5/6] qemu-iotests: Discard specific info in _img_info, Max Reitz, 2013/09/06
[Qemu-devel] [PATCH v2 6/6] qemu-iotests: Additional info from qemu-img info, Max Reitz, 2013/09/06