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Date: Tue, 3 Apr 2012 16:33:08 +0100
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From: Stefan Hajnoczi <stefanha@gmail.com>
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Subject: Re: [Qemu-devel] [PATCH v2] Replace bdrv_* to bdrv_aio_* functions
 in pio mode in fdc.c.
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To: Paolo Bonzini <pbonzini@redhat.com>
Cc: qemu-devel@nongnu.org

On Mon, Apr 2, 2012 at 2:08 PM, Paolo Bonzini <pbonzini@redhat.com> 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 <zhihuili@linux.vnet.ibm.com>
>>> ---
>>> =A0hw/fdc.c | =A0123 +++++++++++++++++++++++++++++++++++++++++++++-----=
------------
>>> =A01 files changed, 89 insertions(+), 34 deletions(-)
>>
>> How can I test this patch?
>
> Looks like one of floppy=3Dnodma or floppy.floppy=3Dnodma should do it.

I'm getting the following output:
$ cat /dev/fd0 >/dev/null
floppy0: long rw: 24 instead of 12
rs=3D1 s=3D1
rh=3D0 h=3D0
rt=3D1 t=3D0
heads=3D2 eoc=3D0
spt=3D18 st=3D0 ss=3D1
in_sector_offset=3D0

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

Stefan