On 15/12/2015:04:14:30 PM, Geoff Levand wrote: > On Tue, 2015-12-15 at 18:29 +0000, Will Deacon wrote: > > > +> > > > * Copy arm64_relocate_new_kernel to the reboot_code_buffer for use > > > +> > > > * after the kernel is shut down. > > > +> > > > */ > > > +> > > > memcpy(reboot_code_buffer, arm64_relocate_new_kernel, > > > +> > > > > > arm64_relocate_new_kernel_size); > > > > At which point does the I-cache get invalidated for this? > > I'll add a call to flush_icache_range() for reboot_code_buffer. I > think that should do it. We execute arm64_relocate_new_kernel() code with I-cache disabled. So, do we really need to invalidate I-cache? ~Pratyush