arm64/efi handling of persistent memory

Mark Rutland mark.rutland at
Fri Dec 18 03:52:24 PST 2015

On Fri, Dec 18, 2015 at 11:06:51AM +0000, Leif Lindholm wrote:
> On Fri, Dec 18, 2015 at 01:33:25AM +0000, Elliott, Robert (Persistent Memory) wrote:
> > Similar to the questions about the arm64 efi boot stub
> > handing persistent memory, some of the arm64 kernel code 
> > looks fishy.


> > 2. is_reserve_region() treating EFI_PERSISTENT_MEMORY the same
> > as EFI_CONVENTIONAL_MEMORY looks wrong.
> Yeah... That one was introduced by
> ad5fb870c486 ("e820, efi: add ACPI 6.0 persistent memory types")
> without any ACKs from ARM people :/

Do we need to do anythign to avoid his kind of thing in future? e.g. a
MAINTAINERS patch for the ARM EFI bits?

Or do we just need to pay attention to linux-efi?


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