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Re: [PATCH] arm64: Disallow combination of ARCH_XGENE and 16K page size

From Jeremy Linton <jeremy.linton@arm.com>
Newsgroups linux.kernel
Subject Re: [PATCH] arm64: Disallow combination of ARCH_XGENE and 16K page size
Date 2016-01-28 16:00 +0100
Message-ID <qVWdd-4Sp-35@gated-at.bofh.it> (permalink)
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On 01/28/2016 05:20 AM, Mark Rutland wrote:
> On Thu, Jan 28, 2016 at 11:08:20AM +0000, Will Deacon wrote:
>> On Thu, Jan 28, 2016 at 10:34:41AM +0000, Catalin Marinas wrote:

>> I thought there was also a suggestion that we could fail gracefully in
>> the EFI stub if we detected an unsupported page size?
>
> Yup. There are other things we could/should test, too.
>
> I believe Jeremy had a patch, but due to churn in that area it didn't
> get picked up.

I will clean-up and re-post that patch in the future too. It was fairly 
trivial so if someone feels the need for immediately...

https://lkml.org/lkml/2015/10/14/948

IMHO, The main sticking point initially was that the correct place for 
the check was a moving target. That problem has been fixed, so it should 
be easy to move it.

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[PATCH] arm64: Disallow combination of ARCH_XGENE and 16K page size dann frazier <dann.frazier@canonical.com> - 2016-01-28 00:20 +0100
  Re: [PATCH] arm64: Disallow combination of ARCH_XGENE and 16K page  size Catalin Marinas <catalin.marinas@arm.com> - 2016-01-28 11:40 +0100
    Re: [PATCH] arm64: Disallow combination of ARCH_XGENE and 16K page  size Will Deacon <will.deacon@arm.com> - 2016-01-28 12:10 +0100
      Re: [PATCH] arm64: Disallow combination of ARCH_XGENE and 16K page  size "Suzuki K. Poulose" <Suzuki.Poulose@arm.com> - 2016-01-28 12:30 +0100
        Re: [PATCH] arm64: Disallow combination of ARCH_XGENE and 16K page size Ard Biesheuvel <ard.biesheuvel@linaro.org> - 2016-01-28 12:40 +0100
          Re: [PATCH] arm64: Disallow combination of ARCH_XGENE and 16K page  size "Suzuki K. Poulose" <Suzuki.Poulose@arm.com> - 2016-01-28 12:40 +0100
      Re: [PATCH] arm64: Disallow combination of ARCH_XGENE and 16K page  size Mark Rutland <mark.rutland@arm.com> - 2016-01-28 12:30 +0100
        Re: [PATCH] arm64: Disallow combination of ARCH_XGENE and 16K page  size Jeremy Linton <jeremy.linton@arm.com> - 2016-01-28 16:00 +0100
  Re: [PATCH] arm64: Disallow combination of ARCH_XGENE and 16K page  size Mark Rutland <mark.rutland@arm.com> - 2016-01-28 12:30 +0100

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