Re: [Qemu-devel] Setting up PPC440 Virtex Image for Qemu

[Suzuki Poulose <suzuki@in.ibm.com>]

On 06/30/11 18:02, Edgar E. Iglesias wrote:
> On Thu, Jun 30, 2011 at 05:45:23PM +0530, Suzuki Poulose wrote:
>> Hi,
>>
>> I am working on enabling the KEXEC on PPC440 chipsets. To debug my patches,
>> I would like to use the Qemu. The only available PPC440 support in Qemu is
>> for the ppc-virtex. (Thanks for adding the support).
>>
>> I was trying to use the default image provided at
>>
>> http://wiki.qemu.org/download/ppc-virtexml507-linux-2_6_34.tgz
>>
>> However I cannot get the network up for the board to use the nfs root file
>> system.
>
> Hi,
>
> The problem is that there is no model of the LL-TEMAC in qemu, the one in
> the refdesign beeing emulated. An easy way out is probably to connect
> a xilinx,ethlite instead. You'll need to modify both QEMU and the dtb.
>
> IIRC, the dtb published with the image has the lltemac removed.
>
> I've got a working LL-temac model here, will try to post it this weekend.
> Or if you're interested in hacking on it, I could probably code dump it as
> is.

Edgar,

Thanks a lot for the quick reply.
>>
>> Is there something I can do to get the networking up ? I think this may need to
>> be fixed in the dtb.
>>
>>    Or is there any other mechanism to use a different file system ?
>> ( I have the tool chain to build the kernel etc)
>
>
> Another way is to create ramdisks with all the stuff you need and just
> not use networking. Thats how the image from the wiki does it.

I think I can try this option. By the way, could you pass on the steps to
attach the ramdisks to the image ?

Thanks
Suzuki