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[Qemu-devel] [PATCH v3 0/3] dataplane: misaligned buffers support for Wi
From: |
Stefan Hajnoczi |
Subject: |
[Qemu-devel] [PATCH v3 0/3] dataplane: misaligned buffers support for Windows guests |
Date: |
Fri, 11 Jan 2013 16:41:26 +0100 |
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(-)
--
1.8.0.2
- [Qemu-devel] [PATCH v3 0/3] dataplane: misaligned buffers support for Windows guests,
Stefan Hajnoczi <=