Re: [Qemu-devel] [PATCH v2] Replace bdrv_* to bdrv_aio_* functions in pio mode in fdc.c.

[Stefan Hajnoczi]

On Mon, Apr 2, 2012 at 2:08 PM, Paolo Bonzini <address@hidden> wrote:
> Il 02/04/2012 14:07, Stefan Hajnoczi ha scritto:
>> On Sat, Mar 31, 2012 at 09:15:10PM +0800, Li Zhi Hui wrote:
>>> Replace bdrv_* to bdrv_aio_* functions in pio mode in fdc.c.
>>>
>>> Signed-off-by: Li Zhi Hui <address@hidden>
>>> ---
>>>  hw/fdc.c |  123 
>>> +++++++++++++++++++++++++++++++++++++++++++++-----------------
>>>  1 files changed, 89 insertions(+), 34 deletions(-)
>>
>> How can I test this patch?
>
> Looks like one of floppy=nodma or floppy.floppy=nodma should do it.

I'm getting the following output:
$ cat /dev/fd0 >/dev/null
floppy0: long rw: 24 instead of 12
rs=1 s=1
rh=0 h=0
rt=1 t=0
heads=2 eoc=0
spt=18 st=0 ss=1
in_sector_offset=0

It looks like pio mode doesn't even work with the Linux floppy driver today!

Stefan