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Date: Sun, 23 Jan 2011 22:00:50 +0100
From: "Edgar E. Iglesias" <edgar.iglesias@gmail.com>
Subject: Re: [Qemu-devel] Emulating powerpc 440EP with qemu-system-ppcemb
Message-ID: <20110123210050.GA24918@laped.lan>
References: <4D3C262F.5080304@cse.iitd.ac.in> <4D3C76A4.4010208@landley.net>
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To: Dushyant Bansal <cs5070214@cse.iitd.ac.in>
Cc: Andreas =?iso-8859-1?Q?F=E4rber?= <andreas.faerber@web.de>, qemu-devel@nongnu.org

On Mon, Jan 24, 2011 at 01:38:35AM +0530, Dushyant Bansal wrote:
> On Monday 24 January 2011 01:22 AM, Andreas Färber wrote:
> > Am 23.01.2011 um 19:42 schrieb Rob Landley:
> >
> >> On 01/23/2011 06:59 AM, Dushyant Bansal wrote:
> >>> When  I try to run this command,
> >>> # qemu-system-ppcemb -nographic -m 128 -M bamboo -kernel uImage  
> >>> -append ""
> >>>
> >>> I get the following output and qemu just hangs there:
> >>> Trying to read privileged spr 947 3b3 at 00001028
> >>> Trying to read invalid spr 62 03e at 00000778
> >>
> >> Last I checked, the bamboo board was implemented for KVM not QEMU, and
> >> QEMU didn't have a ppc440 processor emulation.  But that was over a year
> >> ago, things could easily have changed...
> >
> > Matches my info. No ppc440 series since then.
> >
> > Andreas
> 
> $ ./qemu-system-ppc -cpu ? | grep 440
>     This is the output.
> PowerPC 440-Xilinx       PVR 7ff21910
> 
> qemu version: 0.13.50.
> Will it work for ppc440 processor emulation?

Yes, for a long time the MMU emulation was half done. A few months ago
I pushed a set of patches to add enough MMU emulation to handle linux
guests. But there are still parts missing.

The virtex-ml507 board works good enough to run linux on. I can dig
for kernel configs and publish devicetrees and kernel images if
there is interest.

Cheers