[OpenBIOS] [PATCH 0/2] Sparc64: virtio-block and interrupt support

[Blue Swirl]

On Sat, May 12, 2012 at 1:34 PM, Artyom Tarasenko <atar4qemu at gmail.com> wrote:
> On Sat, May 12, 2012 at 1:42 PM, Blue Swirl <blauwirbel at gmail.com> wrote:
>> Based on Artyom's Sparc64 work (thanks a lot!), I added some minimal
>> support for virtio-block and interrupt nodes.
>
> Hey, that was fast! Does it mean your patches also allow booting from
> a virtio device?

No, only a warning for the unknown device is avoided and Linux can use
the interrupts.

Making a simple driver does not look very difficult, here are some examples:
http://fxr.watson.org/fxr/source/dev/virtio/block/virtio_blk.c
http://fxr.watson.org/fxr/source/drivers/block/virtio_blk.c?v=linux-2.6
http://git.qemu.org/?p=seabios.git;a=blob;f=src/virtio-blk.c;h=194deaf98b41a3b10fa6b7e0f49e9fa091a83222;hb=HEAD

>> With these patches and QEMU HEAD, Linux can boot like Artyom describes in
>> http://tyom.blogspot.de/2012_05_01_archive.html
>> but without any manual OpenBIOS setup.
>>
>> Blue Swirl (2):
>>  pci: identify virtio-scsi devices
>>  Sparc64: fix interrupt properties
>>
>>  drivers/ide.c          |    2 ++
>>  drivers/pc_serial.c    |    3 +++
>>  drivers/pci.c          |   23 +++++++++++++++++++++++
>>  drivers/pci_database.c |   19 ++++++++++++++++++-
>>  drivers/pci_database.h |    1 +
>>  include/drivers/pci.h  |    3 +++
>>  6 files changed, 50 insertions(+), 1 deletion(-)
>>
>> --
>> 1.7.10
>
>
>
> --
> Regards,
> Artyom Tarasenko
>
> solaris/sparc under qemu blog: http://tyom.blogspot.com/search/label/qemu