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2009-05-14Move block drivers into their own directoryAnthony Liguori
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-05-14Convert block infrastructure to use new module init functionalityAnthony Liguori
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-04-22implement qemu_blockalign (Stefano Stabellini)aliguori
this patch adds a buffer_alignment field to BlockDriverState and implements a qemu_blockalign function that uses that field to allocate a memory aligned buffer to be used by the block driver. buffer_alignment is initialized to 512 but each block driver can set a different value (at the moment none of them do). This patch modifies ide.c, block-qcow.c, block-qcow2.c and block.c to use qemu_blockalign instead of qemu_memalign. There is only one place left that still uses qemu_memalign to allocate buffers used by block drivers that is posix-aio-compat:handle_aiocb_rw because it is not possible to get the BlockDriverState from that function. However I think it is not important because posix-aio-compat already deals with driver specific code so it is supposed to know its own needs. Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@7229 c046a42c-6fe2-441c-8c8c-71466251a162
2009-04-13Fix OpenSolaris gcc4 warnings: iovec type mismatches, missing 'static'blueswir1
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@7103 c046a42c-6fe2-441c-8c8c-71466251a162
2009-04-07push down vector linearization to posix-aio-compat.c (Christoph Hellwig)aliguori
Make all AIO requests vectored and defer linearization until the actual I/O thread. This prepares for using native preadv/pwritev. Also enables asynchronous direct I/O by handling that case in the I/O thread. Qcow and qcow2 propably want to be adopted to directly deal with multi-segment requests, but that can be implemented later. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@7020 c046a42c-6fe2-441c-8c8c-71466251a162
2009-04-07remove bdrv_aio_read/bdrv_aio_write (Christoph Hellwig)aliguori
Always use the vectored APIs to reduce code churn once we switch the BlockDriver API to be vectored. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@7019 c046a42c-6fe2-441c-8c8c-71466251a162
2009-03-07Use C99 initializers for BlockDriver methodsaurel32
Consistently use the C99 named initializer format for the BlockDriver methods to make the method table more readable and more easily extensible. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6768 c046a42c-6fe2-441c-8c8c-71466251a162
2009-01-08qcow1: Fix compressed images (Kevin Wolf)aliguori
Revert r4673, the removed dead code wasn't dead in fact. Additionally, change the misleading else which tricks the reader into believing that allocate is a boolean to else if (allocate == 2). Signed-off-by: Kevin Wolf <kwolf@suse.de> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6244 c046a42c-6fe2-441c-8c8c-71466251a162
2008-06-05Remove dead-code (else-block) from block-qcow.c, by Marc Bevand.ths
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4673 c046a42c-6fe2-441c-8c8c-71466251a162
2008-03-18restore rw support for vvfataurel32
(Carlo Marcelo Arenas) git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4080 c046a42c-6fe2-441c-8c8c-71466251a162
2008-03-11Revert fix for CVE-2008-0928. Will be fixed in a different way later.aurel32
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4041 c046a42c-6fe2-441c-8c8c-71466251a162
2008-03-11Fix CVE-2008-0928 - insufficient block device address range checkingaurel32
Qemu 0.9.1 and earlier does not perform range checks for block device read or write requests, which allows guest host users with root privileges to access arbitrary memory and escape the virtual machine. git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4037 c046a42c-6fe2-441c-8c8c-71466251a162
2007-11-11Split block API from vl.h.pbrook
Remove QEMU_TOOL. Replace with QEMU_IMG and NEED_CPU_H. Avoid linking qemu-img against whole system emulatior. git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3578 c046a42c-6fe2-441c-8c8c-71466251a162
2007-09-17find -type f | xargs sed -i 's/[\t ]*$//g' # Yes, again. Note the star in ↵ths
the regex. git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3177 c046a42c-6fe2-441c-8c8c-71466251a162
2007-09-16vmdk compatibility level 6 images, by Soren Hansen.ths
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3175 c046a42c-6fe2-441c-8c8c-71466251a162
2007-09-16find -type f | xargs sed -i 's/[\t ]$//g' # on most filesths
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3173 c046a42c-6fe2-441c-8c8c-71466251a162
2006-08-07Dynamically allocate AIO Completion Blocks.pbrook
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2098 c046a42c-6fe2-441c-8c8c-71466251a162
2006-08-05block API changebellard
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2088 c046a42c-6fe2-441c-8c8c-71466251a162
2006-08-03added missing returnsbellard
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2079 c046a42c-6fe2-441c-8c8c-71466251a162
2006-08-01async file I/O APIbellard
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2075 c046a42c-6fe2-441c-8c8c-71466251a162
2006-06-04Disk cache flush support.pbrook
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1949 c046a42c-6fe2-441c-8c8c-71466251a162
2005-12-18qcow_make_empty() support (Johannes Schindelin)bellard
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1716 c046a42c-6fe2-441c-8c8c-71466251a162
2005-04-28probing fixesbellard
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1425 c046a42c-6fe2-441c-8c8c-71466251a162
2004-09-29zlib.h is an external headerbellard
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1077 c046a42c-6fe2-441c-8c8c-71466251a162
2004-09-18fixed block close() method prototypebellard
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1068 c046a42c-6fe2-441c-8c8c-71466251a162
2004-08-0364 bit file I/O by defaultbellard
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1040 c046a42c-6fe2-441c-8c8c-71466251a162
2004-08-01new disk image layerbellard
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1037 c046a42c-6fe2-441c-8c8c-71466251a162
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