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Re: [Qemu-devel] SMP for PReP architecture

From: Alexander Graf
Subject: Re: [Qemu-devel] SMP for PReP architecture
Date: Mon, 2 Jul 2012 22:34:36 +0200

On 02.07.2012, at 19:44, Eli Lewis wrote:

>> Well, PReP is dead since the mid-90's, no [1]? :) I'd be surprised if 
>> you could get recent hardware still supporting it. Plus, I don't think it 
>> really makes all that much sense. PReP is basically a 90's x86 machine with 
>> PPC CPU. Not exactly what you'd consider elegant design.
>> Why not go for something that has a bit wider architecture support and 
>> multi-core support built in, like rtems?
>>   http://wiki.rtems.org/wiki/index.php/BoardSupportPackageInformation
>> That would allow you to go with actual available hardware, like something 
>> based 
>> on FSL e500 or AMCC 44x cores. For e500, we even have SMP emulation support 
>> in 
>> QEMU.
> Thank you
> for your suggestion, but we need to use our modified version of POK.

Ah, too bad :).

> Maybe
> we can change the BSP of POK in order to support the MPC8544DS board.

It's not only the board. Kernel mode is vastly different from the 601 you're 
probably targeting today.

> In QEmu, is the SMP emulation supported for all e500  or for the e500v2 only?

It should work with all e500 cores. Keep in mind that QEMU doesn't implement 
100% of the spec yet though, so if you encounter issues, let me know.


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