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Re: [Xen-devel] Problems running Xen 4.4 on OMAP5432 evm



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 thatâs 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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