[libvirt] [PATCH 1/2] QED: Basic support for QED images

Daniel P. Berrange berrange at redhat.com
Thu Nov 18 10:31:53 UTC 2010


On Wed, Nov 17, 2010 at 01:52:41PM -0600, Adam Litke wrote:
> Add an entry in fileTypeInfo for QED image files.
> 
> Signed-off-by: Adam Litke <agl at us.ibm.com>
> Cc: Stefan Hajnoczi <stefan.hajnoczi at uk.ibm.com>
> Cc: Anthony Liguori <aliguori at linux.vnet.ibm.com>
> ---
>  src/util/storage_file.c |    9 ++++++++-
>  src/util/storage_file.h |    1 +
>  2 files changed, 9 insertions(+), 1 deletions(-)
> 
> diff --git a/src/util/storage_file.c b/src/util/storage_file.c
> index 4098383..6e099ed 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 40
> +
>  /* VMDK needs at least this to find backing store,
>   * other formats need less */
>  #define STORAGE_MAX_HEAD (20*512)
> @@ -151,6 +153,11 @@ static struct FileTypeInfo const fileTypeInfo[] = {
>          LV_BIG_ENDIAN, 4, 2,
>          QCOWX_HDR_IMAGE_SIZE, 8, 1, QCOW2_HDR_CRYPT, qcow2GetBackingStore,
>      },
> +    [VIR_STORAGE_FILE_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,

ACK

Daniel
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