Re: [PATCH 4.4 103/105] Revert "x86/mm/pat: Ensure cpa->pfn only contains page frame numbers"

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To: linux@xxxxxxxxxxxx
Subject: Re: [PATCH 4.4 103/105] Revert "x86/mm/pat: Ensure cpa->pfn only contains page frame numbers"
From: Roland Dreier <roland@xxxxxxxxxxxxxxx>
Date: Fri, 24 Aug 2018 13:16:18 -0700
Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>, Ben Hutchings <ben.hutchings@xxxxxxxxxxxxxxx>, LKML <linux-kernel@xxxxxxxxxxxxxxx>, stable@xxxxxxxxxxxxxxx, matt@xxxxxxxxxxxxxxxxxxx, bp@xxxxxxx, Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>, Andy Lutomirski <luto@xxxxxxxxxxxxxx>, luto@xxxxxxxxxx, Ard Biesheuvel <ard.biesheuvel@xxxxxxxxxx>, bp@xxxxxxxxx, brgerst@xxxxxxxxx, davej@xxxxxxxxxxxxxxxxx, dvlasenk@xxxxxxxxxx, "H. Peter Anvin" <hpa@xxxxxxxxx>, Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>, Peter Zijlstra <peterz@xxxxxxxxxxxxx>, sai.praneeth.prakhya@xxxxxxxxx, sds@xxxxxxxxxxxxx, Thomas Gleixner <tglx@xxxxxxxxxxxxx>, toshi.kani@xxxxxx, linux-efi@xxxxxxxxxxxxxxx, Ingo Molnar <mingo@xxxxxxxxxx>, Yazen.Ghannam@xxxxxxx
In-reply-to: <20180824201025.GB18715@roeck-us.net>
References: <20171215092305.994559179@linuxfoundation.org> <20171215092311.347628971@linuxfoundation.org> <CAL1RGDVgShymmT+TJ3mAHEL7n+qoisk6mQ=Tji_T=0d_QA=VKw@mail.gmail.com> <1535129126.2902.36.camel@codethink.co.uk> <CAL1RGDW1Lo+F5D479Jsi-AFsmjVpdDre_qOFSCwWubG6U=bxeQ@mail.gmail.com> <20180824191749.GA15489@kroah.com> <CAL1RGDXUx-frpWuuYyc-VrAEoOU2+irGQPRWvoBzO2ZxEPGrww@mail.gmail.com> <20180824201025.GB18715@roeck-us.net>

> Sounds great. I'll hold off with sending my RFT series and wait for your
> test results. I think we'll also need d367cef0a7f0c6 ("x86/mm/pat: Fix
> boot crash when 1GB pages are not supported by the CPU").

Sure, makes sense - I don't have any EFI systems with CPUs old enough
not to support 1G pages but that looks reasonable.  I'll pull that
into my tree as well.

 - R.

Follow-Ups:
- Re: [PATCH 4.4 103/105] Revert "x86/mm/pat: Ensure cpa->pfn only contains page frame numbers"
  - From: Guenter Roeck

References:
- [PATCH 4.4 103/105] Revert "x86/mm/pat: Ensure cpa->pfn only contains page frame numbers"
  - From: Greg Kroah-Hartman
- Re: [PATCH 4.4 103/105] Revert "x86/mm/pat: Ensure cpa->pfn only contains page frame numbers"
  - From: Roland Dreier
- Re: [PATCH 4.4 103/105] Revert "x86/mm/pat: Ensure cpa->pfn only contains page frame numbers"
  - From: Ben Hutchings
- Re: [PATCH 4.4 103/105] Revert "x86/mm/pat: Ensure cpa->pfn only contains page frame numbers"
  - From: Roland Dreier
- Re: [PATCH 4.4 103/105] Revert "x86/mm/pat: Ensure cpa->pfn only contains page frame numbers"
  - From: Greg Kroah-Hartman
- Re: [PATCH 4.4 103/105] Revert "x86/mm/pat: Ensure cpa->pfn only contains page frame numbers"
  - From: Roland Dreier
- Re: [PATCH 4.4 103/105] Revert "x86/mm/pat: Ensure cpa->pfn only contains page frame numbers"
  - From: Guenter Roeck

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