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2009-07-16qemu-io: use BDRV_O_FILE to implement the growable open optionChristoph Hellwig1-8/+5
Instead of doing our own check for protocols which fails because raw isn't formally a protocol but special cased in find_protocol specify the BDRV_O_FILE option to use the same code as bdrv_file_open does. While we're at it also add the missing documentation for -g to the main qemu-io help string. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-07-16qemu-io: Implement bdrv_load_vmstate/bdrv_save_vmstateKevin Wolf1-6/+44
The load_vmstate and save_vmstate functions are implemented as a variation of the normal read/write operation, enabled by the -b option. This is the same mechanism as is used to switch from read/write to pread/pwrite. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-07-10qemu-io: fix memory leakKevin Wolf1-22/+38
qemu-io leaks the request buffer whenever the read or write function isn't executed completely down the "normal" code path. [hch: also fix the aio and vectored variants the same way] Signed-off-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Christoph Hellwig <hch@lst.de>
2009-07-10qemu-io: add flag to mark files growableChristoph Hellwig1-5/+26
Add a -g flag to the open command and the main qemu-io command line to allow opening a file growable. This is only allowed for protocols, mirroring the limitation exposed through bdrv_file_open. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Kevin Wolf <kwolf@redhat.com>
2009-07-10qemu-io: better input validation for vector-based commandsChristoph Hellwig1-150/+68
Fix up a couple of issues with validating the input of the various length arguments for the vectored I/O commands: - do the alignment check on each length instead the always 0 count argument - use a long long varibale for the cvtnum return value so that we can check wether it wasn't a number - check for a too large argument instead of truncating it Also refactor it into a common helper for all four calers and avoid parsing the numbers twice. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Kevin Wolf <kwolf@redhat.com>
2009-07-10qemu-io: small cleanups for the aio codeChristoph Hellwig1-24/+16
Address a couple of review comments from Kevin. Signed-off-by: Christoph Hellwig <hch@lst.de>
2009-06-24qemu-io: add aio read/write/flush commandsChristoph Hellwig1-0/+353
Add commands to exercise asynchronous reads/writes and to flush all outstanding aio commands. Commands to exercise aio cancellations will follow in a separate patch. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-06-24qemu-io: Fix spelling in help message.Stefan Weil1-1/+1
excerciser -> exerciser Signed-off-by: Stefan Weil <weil@mail.berlios.de> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-06-24Fix dump output in qemu-io.Stefan Weil1-4/+4
The dump output was not nicely formatted for bytes larger than 0x7f, because signed values expanded to sizeof(int) bytes. So for example 0xab did not print as "ab", but as "ffffffab". I also cleaned the function prototype, which avoids new type casts and allows to remove an existing type cast. Signed-off-by: Stefan Weil <weil@mail.berlios.de> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-05-09Workaround compiler warnings at -O1Paul Brook1-2/+6
Signed-off-by: Paul Brook <paul@codesourcery.com>
2009-05-01qemu-io: Optionally verify only part of read dataKevin Wolf1-10/+41
There are reasonable test cases where a read must span areas that are not uniformly filled with one pattern but contains several parts. This makes -P useless for them currently. Introducing additional options which determine the part of the read data that should be verified with the given pattern allows to check such reads. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-04-18qemu-io: Verify read data by patterns (Kevin Wolf)aliguori1-4/+40
This patch adds a -P option to read and readv which allows to compare the read data to a given pattern. This can be used to verify data written by write -P. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@7182 c046a42c-6fe2-441c-8c8c-71466251a162
2009-04-18qemu-io: Fix handling of bdrv_is_allocated() return value (Kevin Wolf)aliguori1-7/+5
bdrv_is_allocated() returns a boolean which indicates if the offset is allocated, not 0 on success and everything else is an error. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@7181 c046a42c-6fe2-441c-8c8c-71466251a162
2009-04-18a couple of qemu-io fixes (Christoph Hellwig)aliguori1-2/+2
Fix two stupid bugs that I forgot to push out: - qiov->size already is in bytes, no need to shift it - actually use the supplied patter in the writev command 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@7178 c046a42c-6fe2-441c-8c8c-71466251a162
2009-04-05Add files not included in previous commit.aliguori1-0/+1074
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6995 c046a42c-6fe2-441c-8c8c-71466251a162
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