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Date: Tue, 16 Dec 2014 11:59:01 +0000
From: Leon Alrae <leon.alrae@imgtec.com>
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Subject: Re: [Qemu-devel] [PATCH] target-mips: add CPU definition for MIPS-II
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To: Daniel Sanders <Daniel.Sanders@imgtec.com>, Vasileios Kalintiris <Vasileios.Kalintiris@imgtec.com>, Petar Jovanovic <petar.jovanovic@rt-rk.com>
Cc: "qemu-devel@nongnu.org" <qemu-devel@nongnu.org>

Hi Daniel,

On 15/12/2014 14:03, Daniel Sanders wrote:
> Hi,
> 
>  
> 
> FWIW, the R6000 was a MIPS-II processor but I understand there was never
> a proper manual for it. http://www.linux-mips.org/wiki/R6000 has a small
> amount of information but not enough to accurately fill in qemu's structure.
> 
>  
> 
>> If this is really problematic for qemu, why don't we add an
>> --enable-experimental-targets, --enable-generic-targets or something
>> similar for generic/old CPU definitions?
> 
>  
> 
> One other possibility is to use a real CPU name such as R6000 but use
> reasonable guesses where information is unavailable. Is that a good
> compromise?

Adding R6000 sounds like the right way to go. Probably it won't be
accurately defined in QEMU until we can use the real hardware as a
reference, but this is still better than "MIPS-II generic CPU".

Thanks,
Leon