Re: [Qemu-devel] Is realview-pb-a8 fully supported ?

[Peter Maydell]

On 10 October 2011 14:48, Francis Moreau <address@hidden> wrote:
> On Mon, Oct 10, 2011 at 10:42 AM, Peter Maydell
> <address@hidden> wrote:
>> On 10 October 2011 08:35, Francis Moreau <address@hidden> wrote:
>>> I noticed another point for the realview platofrm: if I boot with "-M
>>> 512", it works however if I set "-M 256" then it doesn't.
>>
>> Perhaps your kernel is configured to load in the higher 256MB
>> address range
>
> hmm which options do you have in mind ?

Hmm, I thought there was an option for this but I can't find it
in the config, so I must have been misremembering somehow.

> When I say "it doesn't work", it means that nothing happen when
> starting qemu: no trace, it looks like it's running an infinite loop.

Not even "Uncompressing the kernel" ?

If you want to track down what's going on then you'll need to
connect an ARM gdb up to qemu and single step through the boot
process, I'm afraid.

> BTW I'm wondering which kernel source I should use to build kernels
> for such plateforms (realview, vexpress, versatile) ? I'm currently
> using the source from kernel.org (well similar since this server seems
> really dead). but I'm not sure if it's a good idea...

I think the mainline kernel sources should in theory work
(in particular if they work with 512MB then that's a good
sign...) but I'm not a kernel expert; mostly I use other peoples'
prebuilt ones.

-- PMM