Fwd: Kexec support for PS3 (ppc64)

Geoff Levand geoffrey.levand at am.sony.com
Wed Mar 12 01:40:25 EDT 2008

On 03/11/2008 10:25 PM, Mohan Kumar M wrote:
> On Tue, Mar 11, 2008 at 06:40:46PM -0700, Geoff Levand wrote:
>> When the first stage kernel goes down it releases all hypervisor
>> resources so that whatever boots next can successful open those
>> resources.  The frame buffer is one of those resources that are
>> released, and after it is, there will be no more output to the
>> display until the second stage image brings up its display.  It
>> is not a matter of adding print statements or string formatting.
> Geoff,
> What about using Hypervisor call H_PUT_TERM_CHAR?
> I used this call to debug the first kernel kexec shutdown sequence.

That is for the IBM pSeries.  I can't see how it would work
on the ps3.  ps3 hvcalls are in lv1calls.h.

Just out of curiosity, how exactly did you 'use' it?


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