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Re: [Xen-users] Issues Booting DomU on TI DRA72 Chip

On Wed, 2015-07-08 at 09:29 -0400, Brandon Perez wrote:
>      My platform sets the CNTFRQ register during boot-up, so it doesn't 
> come from the device tree. Might this be causing issues later for DomU, 
> or are those issues present only the device tree node is used to set the 
> CNTFRQ register?

If the h/w CNTFRQ register is correct on all physical cpus (not just the
boot one, worth double checking that) then there is no need to have
anything in the device tree. So assuming you are letting xl generate the
guest dtb (instead of say appending it) you should be ok in this regard.

>      Any ideas on what else may be leading to this issue?

Next on my list would be the boot is working but the console is b0rked,
but you have console=hvc0 so that looks good. You do have the HVC stuff
enabled in the guest kernel's .config, right?

Pressing Ctrl-o on a xen guest console is the equivalent of the magic
sysrq key, you might find pressing some of those might show what is
going on.

Otherwise I'm completely stumped. It's probably worth going back to the
data sheet and making sure everything matches in the DTS, in particular
for virtulisation extension related things which might not be used by
native Linux (e,g, the vtimer interrupt SPI number etc), but really
that's getting a bit desperate.


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