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[libvirt] [PATCH 2/4] QED: Basic support for QED images



Add an entry in fileTypeInfo for QED image files.

Signed-off-by: Adam Litke <agl us ibm com>
Acked-by: Eric Blake <eblake redhat com>
Cc: Stefan Hajnoczi <stefan hajnoczi uk ibm com>
Cc: Anthony Liguori <aliguori linux vnet ibm com>
---
 src/util/storage_file.c |   10 +++++++++-
 src/util/storage_file.h |    1 +
 2 files changed, 10 insertions(+), 1 deletions(-)

diff --git a/src/util/storage_file.c b/src/util/storage_file.c
index f8ab168..89c2cbe 100644
--- a/src/util/storage_file.c
+++ b/src/util/storage_file.c
@@ -43,7 +43,7 @@ VIR_ENUM_IMPL(virStorageFileFormat,
               VIR_STORAGE_FILE_LAST,
               "raw", "dir", "bochs",
               "cloop", "cow", "dmg", "iso",
-              "qcow", "qcow2", "vmdk", "vpc")
+              "qcow", "qcow2", "qed", "vmdk", "vpc")
 
 enum lv_endian {
     LV_LITTLE_ENDIAN = 1, /* 1234 */
@@ -104,6 +104,8 @@ static int vmdk4GetBackingStore(char **, int *,
 #define QCOW2_HDR_EXTENSION_END 0
 #define QCOW2_HDR_EXTENSION_BACKING_FORMAT 0xE2792ACA
 
+#define QED_HDR_IMAGE_SIZE (4+4+4+4+8+8+8)
+
 /* VMDK needs at least this to find backing store,
  * other formats need less */
 #define STORAGE_MAX_HEAD (20*512)
@@ -151,6 +153,12 @@ static struct FileTypeInfo const fileTypeInfo[] = {
         LV_BIG_ENDIAN, 4, 2,
         QCOWX_HDR_IMAGE_SIZE, 8, 1, QCOW2_HDR_CRYPT, qcow2GetBackingStore,
     },
+    [VIR_STORAGE_FILE_QED] = {
+        /* http://wiki.qemu.org/Features/QED */
+        "QED\0", NULL,
+        LV_LITTLE_ENDIAN, -1, -1,
+        QED_HDR_IMAGE_SIZE, 8, 1, -1, NULL,
+    },
     [VIR_STORAGE_FILE_VMDK] = {
         "KDMV", NULL,
         LV_LITTLE_ENDIAN, 4, 1,
diff --git a/src/util/storage_file.h b/src/util/storage_file.h
index a3703f5..c4d4650 100644
--- a/src/util/storage_file.h
+++ b/src/util/storage_file.h
@@ -38,6 +38,7 @@ enum virStorageFileFormat {
     VIR_STORAGE_FILE_ISO,
     VIR_STORAGE_FILE_QCOW,
     VIR_STORAGE_FILE_QCOW2,
+    VIR_STORAGE_FILE_QED,
     VIR_STORAGE_FILE_VMDK,
     VIR_STORAGE_FILE_VPC,
     VIR_STORAGE_FILE_LAST,
-- 
1.7.3.2.164.g6f10c


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