22 Jul
2011
22 Jul
'11
12:53 p.m.
On 7/22/2011 6:15 PM, Woodruff, Richard wrote:
From: linux-arm-kernel-bounces@lists.infradead.org [mailto:linux-arm- kernel-bounces@lists.infradead.org] On Behalf Of Shilimkar, Santosh
With fixed IRQ migration and forcing CPU0 into an infinite WFI loop, I can offline CPU0 and still have a running system.
The secure software runs only on CPU0 and that's the biggest limitation. Other issues like hand-shake as you pointed out, power sequencing etc can be worked around.
As you know well some of the secure APIs work on CPU1 and others do not.
I notice in other thread Russell made assumption about CPU1 being able to use all because it could run some. This is not the case.
I clarified that on the other thread.
Regards Santosh