Re: [Qemu-devel] [PATCH v3 0/3] dataplane: misaligned buffers support for Windows guests

[Kevin Wolf]

Am 11.01.2013 16:41, schrieb Stefan Hajnoczi:
> Windows guests do not work with x-data-plane=on because misaligned request
> support is missing in hw/dataplane/virtio-blk.c.  This series adds a bounce
> buffer when the request is misaligned.  Windows guests now work with
> x-data-plane=on.
> 
> v3:
>  * Use iov/iov_cnt before modifying them in do_rdwr_cmd() [Kevin, Paolo]
>  * Keep bounce buffer iovec alive across io_submit() [Stefan]
>  * New & improved!  Now tested against Linux in addition to Windows guests. 
> [Paolo]
> 
> v2:
>  * Use qemu_iovec_from_buffer() on read completion, not 
> qemu_iovec_to_buffer() [Stefan]
> 
> Stefan Hajnoczi (3):
>   block: make qiov_is_aligned() public
>   dataplane: extract virtio-blk read/write processing into do_rdwr_cmd()  
> dataplane: handle misaligned virtio-blk requests
> 
>  block.c                   | 16 +++++++++++
>  block/raw-posix.c         | 18 +-----------
>  hw/dataplane/virtio-blk.c | 71 
> +++++++++++++++++++++++++++++++++++++++--------
>  include/block/block.h     |  1 +
>  4 files changed, 78 insertions(+), 28 deletions(-)

Thanks, applied all to the block branch.

Kevin