Re: [Qemu-devel] Emulating powerpc 440EP with qemu-system-ppcemb

[Dushyant Bansal <cs5070214@cse.iitd.ac.in>]

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On Monday 24 January 2011 12:12 AM, Rob Landley wrote:
> On 01/23/2011 06:59 AM, Dushyant Bansal wrote:
>    
>> Hi all,
>>
>> I have configured and built qemu with device tree support.
>> qemu-version: 0.13.50
>> I have built kernel image (uImage) for bamboo using powerpc-440 toolchain.
>> kernel-version: 2.6.37-rc6+
>>
>> 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
>>
>> Has anyone tried to emulate bamboo with qemu before ?
>>
>> Thanks,
>> Dushyant
>>      
> In my Aboriginal Linux project (http://landley.net/aboriginal) I have a
> config that builds a ppc440 cross compiler and builds a root filesystem
> and kernel with it, but the kernel .config is bog standard 32 bit PPC
> (mac99 board I think).  It boots and runs, gives you a shell prompt, but
> occasionally misbehaves you try to do anything fancy with it.
>
>    
I am also using 
<http://www.landley.net/aboriginal/downloads/binaries/cross-compiler-powerpc-440fp.tar.bz2>"cross-compiler-powerpc-440fp" 
from the aboriginal project 
(http://www.landley.net/aboriginal/downloads/binaries/) to build the 
kernel image :).
> 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...
>    
Yes, qemu supports ppc440(bamboo).

$ qemu-system-ppcemb -M ?
Supported machines are:
mpc8544ds  mpc8544ds
bamboo     bamboo
ref405ep   ref405ep
taihu      taihu
mac99      Mac99 based PowerMAC
g3beige    Heathrow based PowerMAC (default)
prep       PowerPC PREP platform

> What kernel .config are you using for the bamboo kernel?
>
> Rob
>
>    
I am using arch/powerpc/configs/44x/bamboo_defconfig.

Thanks,
Dushyant

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