Re: Problems running Xen 4.4 on OMAP5432 evm

[Julien Grall <julien.grall@linaro.org>]

Hi Anish,

On 25/04/14 00:05, Kapania, Ashish wrote:
> I apologize for causing any confusion. The xen.lds file I modified is generated and
> hence not tracked by git. I had forgotten about the change and running "git status"
> was not telling me that I modified the file. Another point I wanted to make was
> that I always do a "make distclean" before rebuilding xen but the xen.lds file
> does not get regenerated. I had to manually delete it to force regeneration.
> Maybe that’s a bug ?
>
> I tried the Ctrl-A * 3 + press 'd' sequence and found that dom0 is in ABT mode.
> I tried debugging a little with JTAG (My JTAG setup does not work well in HYP
> Mode so I cannot debug xen with it) and found that the ABT happens in
> Linux/arch/arm/boot/compressed/head.S's __setup_mmu code. The exact instruction
> that causes the abort is a store instruction that is attempting to write a page
> table entry to 0x80004000.
>
> MMU stage 1 translation is disabled at this point so it looks like the
> Stage 2 translation is not mapping 0x80004000 address. Is there some step that
> I am missing that is suppose to tell xen to map the memory used by linux to
> store page tables ?

Can you post the console output of Xen and DOM0 (if you have some)? I'd 
like to seems how Xen populates the RAM for DOM0.

Regards,

-- 
Julien Grall

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