[PATCH 08/16] arm64/kexec: Add core kexec support

[Geoff Levand]

Hi,

On Tue, 2015-10-20 at 14:26 +0530, Pratyush Anand wrote:
> On 19/10/2015:11:38:53 PM, Geoff Levand wrote:
> > +static void soft_restart(unsigned long addr)
> > +{
> > +> > 	> > setup_mm_for_reboot();
> > +> > 	> > cpu_soft_restart(virt_to_phys(cpu_reset), addr,
> > +> > 	> > 	> > is_hyp_mode_available());
> 
> So now we do not flush cache for any memory region. Shouldn't we still flush
> at least kernel and purgatory segments. 

Relevant pages of the kexec list are flushed in the code following the comment
'Invalidate dest page to PoC' of the arm64_relocate_new_kernel routine:

 The dcache is turned off
 The page is invalidated to PoC
 The new page is written

-Geoff