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root / hw / dataplane @ 0d09e41a

Name Size
Makefile.objs 76 Bytes
hostmem.c 5.4 kB
ioq.c 2.8 kB
ioq.h 1.7 kB
virtio-blk.c 16.6 kB
virtio-blk.h 916 Bytes
vring.c 11.7 kB

Latest revisions

# Date Author Comment
0d09e41a 04/08/2013 07:13 pm Paolo Bonzini

hw: move headers to include/

Many of these should be cleaned up with proper qdev-/QOM-ification.
Right now there are many catch-all headers in include/hw/ARCH depending
on cpu.h, and this makes it necessary to compile these files per-target.
However, fixing this does not belong in these patches....
485e3ce8 03/15/2013 05:07 pm Paolo Bonzini

dataplane: fix hang introduced by AioContext transition

The bug is that the EventNotifiers do have a NULL io_flush callback.
Because none of the callbacks on the dataplane AioContext have such a
callback, aio_poll will simply do nothing. Fixed by adding the callbacks:...
6e72a00f 03/11/2013 02:56 am Anthony Liguori

Merge remote-tracking branch 'bonzini/hw-dirs' into staging

  • bonzini/hw-dirs:
    sh: move files referencing CPU to hw/sh4/
    ppc: move more files to hw/ppc
    ppc: move files referencing CPU to hw/ppc/
    m68k: move files referencing CPU to hw/m68k/
    i386: move files referencing CPU to hw/i386/...
2c20e711 03/04/2013 10:54 am Paolo Bonzini

dataplane: remove EventPoll in favor of AioContext

During the review of the dataplane code, the EventPoll API morphed itself
(not concidentially) into something very very similar to an AioContext.
Thus, it is trivial to convert virtio-blk-dataplane to use AioContext,...
83c9f4ca 03/01/2013 04:01 pm Paolo Bonzini

hw: include hw header files with full paths

Done with this script:

cd hw
for i in `find . -name '*.h' | sed 's/^..//'`; do
echo '\,^#.*include.*["<]'$i'[">], s,'$i',hw/&,'
done | sed -i -f - `find . -type f`

This is so that paths remain valid as files are moved....
b4a42f81 03/01/2013 02:54 pm Paolo Bonzini

hw: move qdev-monitor.o to toplevel directory

qdev-monitor.c is the only "core qdev" file that is not used in
user-mode emulation, and it does not define anything that is used
by hardware models. Remove it from the hw/ directory and
remove hw/qdev-monitor.h from hw/qdev.h too; this requires...
cd7fdfe5 01/18/2013 05:57 pm Stefan Hajnoczi

dataplane: avoid reentrancy during virtio_blk_data_plane_stop()

When dataplane is stopping, the s->vdev->binding->set_host_notifier(...,
false) call can invoke the virtqueue handler if an ioeventfd
notification is pending. This causes hw/virtio-blk.c to invoke...
b8bec49c 01/14/2013 09:36 pm Michael Roth

dataplane: fix build breakage on set_guest_notifiers()

virtio_pci_set_guest_notifiers() now takes an additional argument to
specify the number of virtqueues to assign a guest notifier for. This
causes a build breakage for CONFIG_VIRTIO_BLK_DATA_PLANE builds:...
b5ef1aab 01/14/2013 11:06 am Stefan Hajnoczi

dataplane: extract virtio-blk read/write processing into do_rdwr_cmd()

Extract code for read/write command processing into do_rdwr_cmd(). This
brings together pieces that are spread across process_request().

The real motivation is to set the stage for handling misaligned...
de0161c0 01/14/2013 11:06 am Stefan Hajnoczi

dataplane: handle misaligned virtio-blk requests

O_DIRECT on Linux has alignment requirements on I/O buffers and
misaligned requests result in -EINVAL. The Linux virtio_blk guest
driver usually submits aligned requests so I forgot to handle misaligned
requests....

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