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Date: Tue, 18 Dec 2007 08:40:42 -1000
From: Armin <akuster@kama-aina.net>
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Subject: Re: [Qemu-devel] [Patch 1/2] switch support v2
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To: Laurent Vivier <Laurent.Vivier@bull.net>
Cc: qemu-devel@nongnu.org

Laurent Vivier wrote:
> Le lundi 17 d=C3=A9cembre 2007 =C3=A0 09:40 -1000, Armin a =C3=A9crit :
>  =20
>> Laurent Vivier wrote:
>>    =20
>>> Hi,
>>>
>>> if you just want to configure which bank to use with pflash, perhaps =
you
>>> can do something like:
>>>
>>> qemu -drive if=3Dpflash,unit=3D0
>>>
>>> to use the first bank, and
>>>
>>> qemu -drive if=3Dpflash,unit=3D1
>>>
>>> to use the second bank.
>>>  =20
>>>      =20
>> Yes, that might work for the flash case but does not address other=20
>> switches settings. In my case, the Mainstone has two rotary switches=20
>> that define which frequency to boot up in.
>>    =20
>
> But I don't think qemu able to emulate frequency ?
> So it should be useless.
>  =20
I am sure that is true and my example might be very week in the above cas=
e.
I think if a board we are trying to emulate has boot time configurations=20
governed by  jumpers or switches for enabling or disabling certain=20
hardware devices , then having a runtime solution seems more=20
appropriate.  It seems silly to have to rebuild to qemu if one wants to=20
switch device A to be uart #2 from an IrdA device when using "-switches=20
1=3Don" could do the same.

regards,
Armin