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Re: arm64/efi handling of persistent memory

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On Fri, Dec 18, 2015 at 11:52:24AM +0000, Mark Rutland wrote:
> 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?

We've not needed that sort of thing in the past.
And running get_maintainer.pl on ad5fb870c486 does yield Catalin,
Will, Matt Fleming, you, Ard, me, lakml and linux-efi.

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

While I am certainly guilty of not watching that closely enough, I
can't actually find that patch in my linux-efi history. Or lakml.

/
    Leif
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Thread

arm64/efi handling of persistent memory "Elliott, Robert (Persistent Memory)" <elliott@hpe.com> - 2015-12-18 02:40 +0100
  Re: arm64/efi handling of persistent memory Leif Lindholm <leif.lindholm@linaro.org> - 2015-12-18 12:10 +0100
    Re: arm64/efi handling of persistent memory Mark Rutland <mark.rutland@arm.com> - 2015-12-18 12:50 +0100
      Re: arm64/efi handling of persistent memory Ard Biesheuvel <ard.biesheuvel@linaro.org> - 2015-12-18 14:10 +0100
    Re: arm64/efi handling of persistent memory Mark Rutland <mark.rutland@arm.com> - 2015-12-18 13:00 +0100
      Re: arm64/efi handling of persistent memory Leif Lindholm <leif.lindholm@linaro.org> - 2015-12-18 13:20 +0100
      Re: arm64/efi handling of persistent memory Matt Fleming <matt@codeblueprint.co.uk> - 2015-12-18 14:30 +0100

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