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Name Size
blkdebug.c 12.8 kB
blkverify.c 10.4 kB
bochs.c 6.6 kB
cloop.c 4.9 kB
cow.c 8.6 kB
curl.c 14.8 kB
dmg.c 8.3 kB
nbd.c 5.2 kB
parallels.c 4.4 kB
qcow.c 29.9 kB
qcow2-cluster.c 27.5 kB
qcow2-refcount.c 39.2 kB
qcow2-snapshot.c 13.3 kB
qcow2.c 38 kB
qcow2.h 7 kB
raw-posix-aio.h 1.3 kB
raw-posix.c 36.3 kB
raw-win32.c 11.2 kB
raw.c 3.7 kB
sheepdog.c 51.6 kB
vdi.c 29.2 kB
vmdk.c 25.4 kB
vpc.c 17.9 kB
vvfat.c 80.6 kB

Latest revisions

# Date Author Comment
72893756 10/22/2010 03:49 pm Stefan Hajnoczi

qcow2: Support exact L1 table growth

The L1 table grow operation includes a size calculation that bumps up
the new L1 table size in order to anticipate the size needs of vmstate
data. This helps reduce the number of times that the L1 table has to be
grown when vmstate data is appended....
a9420734 10/22/2010 03:49 pm Kevin Wolf

qcow2: Simplify image creation

Instead of doing lots of magic for setting up initial refcount blocks and stuff
create a minimal (inconsistent) image, open it and initialize the rest with
regular qcow2 functions.

This is a complete rewrite of the image creation function. The old...
9b036055 10/22/2010 03:49 pm Kevin Wolf

qcow2: Remove old image creation function

They have been #ifdef'd out by the previous patch.

Signed-off-by: Kevin Wolf <>
51ef6727 10/22/2010 03:49 pm edison

Copy snapshots out of QCOW2 disk

In order to backup snapshots, created from QCOW2 iamge, we want to copy snapshots out of QCOW2 disk to a seperate storage.
The following patch adds a new option in "qemu-img": qemu-img convert -f qcow2 -O qcow2 -s snapshot_name src_img bck_img....
83e3f76c 10/13/2010 09:38 pm Blue Swirl

block: avoid a write only variable

Compiling with GCC 4.6.0 20100925 produced a warning:
/src/qemu/block/qcow2-refcount.c: In function 'update_refcount':
/src/qemu/block/qcow2-refcount.c:552:13: error: variable 'dummy' set but not used [-Werror=unused-but-set-variable]...
d523d5d6 10/03/2010 09:40 am Stefan Weil

block/vvfat: Fix compiler warning in debug code

Fix this compiler warning:
./block/vvfat.c:2285: error: comparison of unsigned expression >= 0 is always true

Cc: Blue Swirl <>
Cc: Kevin Wolf <>
Signed-off-by: Stefan Weil <>...
687db4ed 09/22/2010 10:46 pm Anthony Liguori

block-verify: fix 32-bit build

Reported-by: Peter Lemenkov <>
Signed-off-by: Anthony Liguori <>
d9d33417 09/21/2010 06:00 pm Stefan Hajnoczi

blkverify: Add block driver for verifying I/O

The blkverify block driver makes investigating image format data
corruption much easier. A raw image initialized with the same contents
as the test image (e.g. qcow2 file) must be provided. The raw image
mirrors read/write operations and is used to verify that data read from...
6f5f060b 09/21/2010 04:39 pm Kevin Wolf

qcow2: Avoid bounce buffers for AIO write requests

qcow2 used to use bounce buffers for any AIO requests. This does not only imply
unnecessary copying, but also unbounded allocations which should be avoided.

This patch removes bounce buffers from the normal AIO write path. Encrypted...
bd28f835 09/21/2010 04:39 pm Kevin Wolf

qcow2: Avoid bounce buffers for AIO read requests

qcow2 used to use bounce buffers for any AIO requests. This does not only imply
unnecessary copying, but also unbounded allocations which should be avoided.

This patch removes bounce buffers from the normal AIO read path, and constrains...

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