Re: [Qemu-devel] CDROM: why can it not be changed to PIO mode?

[Zhi Yong Wu]

OK.

On Thu, Nov 3, 2011 at 4:04 PM, Stefan Hajnoczi <address@hidden> wrote:
> On Wed, Nov 2, 2011 at 8:35 AM, Zhi Yong Wu <address@hidden> wrote:
>> HI, guys,
>>
>> I managed to change one cdrom on guest from DMA mode to PIO mode, but
>> failed. Did anyone also met this same issue before? If you have some
>> experience to solve this, Can you share with me?
>
> Since no one knows the answer off-hand you can find out the reason for
> yourself by looking at the hdparm and Linux driver code to see how it
> switches modes.  Then look at QEMU's emulation to see why it's not
> working.
>
> Stefan
>

-- 
Regards,

Zhi Yong Wu