Re: Testing xen-arm on Arndale

[Julien Grall <julien.grall@citrix.com>]

On 03/30/2013 03:40 AM, Sengul Thomas wrote:

>>
>> I have pushed a working tree for domU based on linux 3.9-rc3:
>> http://xenbits.xen.org/gitweb/?p=people/julieng/linux-arm.git;a=shortlog;h=refs/heads/arndale-domU-3.9
>>
>> You can compile with:
>> make ARCH=arm xen_domU_arndale_defconfig
>> make ARCH=arm zImage
> 
> Thanks a lot! Julien,  now I can see console messages when booting domU.
> 
>>
>> The xenvm-4.2.dts only works with Versatile Expresss, because the gic is not
>> mapped to the right address.
> 
> I noticed that you have changed the gic mmio address to 0x10481000.
> I figured that this gic (actually vgic) is emulated by
> "xen/arch/arm/vgic.c" and according to the source code,
> the virtual mmio address is defined as following:
> 
>     #define VGIC_DISTR_BASE_ADDRESS (GIC_BASE_ADDRESS+GIC_DR_OFFSET)
> 
> which is the same physical gic mmio address (plus GIC_DR_OFFSET).
> So we have to use this (0x10481000) value, right?


Yes. This value is hard-coded for the moment. In the future, we will try
to retrieve the base address from the DTS.

Cheers,

Julien