Statistics
| Branch: | Revision:

root / block / raw.c @ b90fb4b8

History | View | Annotate | Download (4 kB)

# Date Author Comment
025e849a 09/12/2011 04:17 pm Markus Armbruster

block: Rename bdrv_set_locked() to bdrv_lock_medium()

While there, make the locked parameter bool.

Signed-off-by: Markus Armbruster <>
Signed-off-by: Kevin Wolf <>
be32f75f 09/06/2011 12:24 pm Markus Armbruster

block/raw: Fix to forward method bdrv_media_changed()

Block driver "raw" forwards most methods to the underlying block
driver. However, it doesn't implement method bdrv_media_changed().
Makes bdrv_media_changed() always return -ENOTSUP.

I believe -fda /dev/fd0 gives you raw over host_floppy, and disk...
7267c094 08/21/2011 07:01 am Anthony Liguori

Use glib memory allocation and free functions

qemu_malloc/qemu_free no longer exist after this commit.

Signed-off-by: Anthony Liguori <>
7bf37fed 08/01/2011 01:10 pm Markus Armbruster

block: Make BlockDriver method bdrv_set_locked() return void

The only caller is bdrv_set_locked(), and it ignores the value.

Callees always return 0, except for FreeBSD's cdrom_set_locked(),
which returns -ENOTSUP when the device is in a terminally wedged...
822e1cd1 08/01/2011 01:10 pm Markus Armbruster

block: Make BlockDriver method bdrv_eject() return void

Callees always return 0, except for FreeBSD's cdrom_eject(), which
returns -ENOTSUP when the device is in a terminally wedged state.

The only caller is bdrv_eject(), and it maps -ENOTSUP to 0 since...
bb8bf76f 12/17/2010 05:11 pm Christoph Hellwig

block: add discard support

Add a new bdrv_discard method to free blocks in a mapping image, and a new
drive property to set the granularity for these discard. If no discard
granularity support is set discard support is disabled.

Signed-off-by: Christoph Hellwig <>...
205ef796 11/04/2010 01:52 pm Kevin Wolf

block: Allow bdrv_flush to return errors

This changes bdrv_flush to return 0 on success and -errno in case of failure.
It's a requirement for implementing proper error handle in users of bdrv_flush.

Signed-off-by: Kevin Wolf <>
Reviewed-by: Stefan Hajnoczi <>
8b33d9ee 09/09/2010 01:09 am Anthony Liguori

Revert "Make default invocation of block drivers safer (v3)"

This reverts commit 79368c81bf8cf93864d7afc88b81b05d8f0a2c90.

Conflicts:

block.c

I haven't been able to come up with a solution yet for the corruption caused by
unaligned requests from the IDE disk so revert until a solution can be written....
336c1c12 08/03/2010 04:57 pm Kevin Wolf

block: Fix bdrv_has_zero_init

Assuming that any image on a block device is not properly zero-initialized is
actually wrong: Only raw images have this problem. Any other image format
shouldn't care about it, they initialize everything properly themselves....
79368c81 07/15/2010 04:17 pm Anthony Liguori

Make default invocation of block drivers safer (v3)

CVE-2008-2004 described a vulnerability in QEMU whereas a malicious user could
trick the block probing code into accessing arbitrary files in a guest. To
mitigate this, we added an explicit format parameter to -drive which disabling...
84a12e66 05/03/2010 11:07 am Christoph Hellwig

block: separate raw images from the file protocol

We're running into various problems because the "raw" file access, which
is used internally by the various image formats is entangled with the
"raw" image format, which maps the VM view 1:1 to a file system....
66f82cee 05/03/2010 11:07 am Kevin Wolf

block: Open the underlying image file in generic code

Format drivers shouldn't need to bother with things like file names, but rather
just get an open BlockDriverState for the underlying protocol. This patch
introduces this behaviour for bdrv_open implementation. For protocols which...