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

[Ian Campbell <Ian.Campbell@xxxxxxxxxx>]

On Wed, 2014-04-16 at 00:23 +0000, Kapania, Ashish wrote:
> Hi,
> 
> I am trying to run Xen (+ Linux dom0) on OMAP5432 evm and have been having
> trouble just booting xen itself. The xen wiki does not have build instructions
> for OMAP5432 but the source code seems to have support for it so I am assuming
> that board is supported. I am using xen RELEASE-4.4.0 git tag to build a xen
> image. Here's my build command-line:
> 
> make dist-xen XEN_TARGET_ARCH=arm32 CROSS_COMPILE=arm-linux-gnueabihf- 
> CONFIG_EARLY_PRINTK=omap5432

Worth trying with "debug=y" on this too (will need a complete clean to
take full affect)

> When I boot xen, I see the A15 hangs in setup_pagetables() function in 
> arch/arm/mm.c
> file.

Can you say exactly where?

> MODULE[1]: 0000000083ff6000 - 0000000083ffd000 
>  RESVD[0]: 00000000825f0000 - 00000000825f7000
>  RESVD[1]: 0000000083ff6000 - 0000000083ffd000
> 
> Command line: dom0_mem=256M console=dtuart dtuart=serial2 earlyprintk=xen
> Placing Xen at 0x00000000fee00000-0x00000000ff000000

At this point Xen will be relocating itself. I'm not sure what has gone
wrong though. I presume 0xfee000000 is actually in RAM?

> Any ideas on what I might be doing wrong ? Maybe I am missing some patch
> that is required to run xen on omap5432 ?

I can't think of any relevant patches which aren't in 4.4.0, but it
would certainly be good to try the development branch to be sure (if
that works then we can figure out which patch needs backporting).

Otherwise I'm afraid the issue will need some more debugging.

Ian.


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