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Re: [Qemu-ppc] [Qemu-devel] [PATCH 2/6] prep: change default cpu to '744

From: Hervé Poussineau
Subject: Re: [Qemu-ppc] [Qemu-devel] [PATCH 2/6] prep: change default cpu to '7448'
Date: Mon, 19 Mar 2012 22:02:22 +0100
User-agent: Thunderbird (Windows/20090812)

Andreas Färber a écrit :
Am 17.03.2012 15:39, schrieb Hervé Poussineau:
In b37fc148bb81b5b022846156a6cba266e6c23962, PReP default cpu was changed from
'default' to '602'. However, '7448' is closer of 'default' than '602'.

This repairs following command line, which is available in some tutorials:
qemu-system-ppc -kernel zImage.prep -fda debian_install_root.bin -M prep

Cc: Gerd Hoffmann <address@hidden>
Signed-off-by: Hervé Poussineau <address@hidden>

Weak nack. I guess this depends more on the image than on the command
line. If at this point we change the default CPU for -M prep, we would
need to start creating prep-1.0 etc. which I would like to avoid as long
as possible...

I'm using floppy images available at
more specifically root.bin
The default cpu has already been changed once between 0.11 and 0.12, so I think it's not impossible to change it once more.
Moreover, I'm not sure PReP emulation is used in any real environment...

Did you happen to found out which physical machine 'prep' corresponds
to? If so, what CPU did it have?
It seems that 'prep' emulates a Motorola, maybe the PowerStack/BlackHack, but I'm not sure...

The Sandalfoot supposedly had a 601, the BeBox a dual 603.

With 601, Open Hack'Ware doesn't work.
With 602, the Debian installer doesn't start.
With 603, the Debian installer starts.
With 604, Open Hack'Ware doesn't work.

Will you accept a patch to change '602' to '603'?


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