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From:   Roland Dreier <roland@purestorage.com>
Date:   Fri, 24 Aug 2018 13:16:18 -0700
Message-ID: <CAL1RGDXa2POjmrr8UK-2oYyQtxYxiOs5t9BrpGUHRXqkDjMW5w@mail.gmail.com>
Subject: Re: [PATCH 4.4 103/105] Revert "x86/mm/pat: Ensure cpa->pfn only
 contains page frame numbers"
To:     linux@roeck-us.net
Cc:     Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        Ben Hutchings <ben.hutchings@codethink.co.uk>,
        LKML <linux-kernel@vger.kernel.org>, stable@vger.kernel.org,
        matt@codeblueprint.co.uk, bp@suse.de,
        Andrew Morton <akpm@linux-foundation.org>,
        Andy Lutomirski <luto@amacapital.net>, luto@kernel.org,
        Ard Biesheuvel <ard.biesheuvel@linaro.org>, bp@alien8.de,
        brgerst@gmail.com, davej@codemonkey.org.uk, dvlasenk@redhat.com,
        "H. Peter Anvin" <hpa@zytor.com>,
        Linus Torvalds <torvalds@linux-foundation.org>,
        Peter Zijlstra <peterz@infradead.org>,
        sai.praneeth.prakhya@intel.com, sds@tycho.nsa.gov,
        Thomas Gleixner <tglx@linutronix.de>, toshi.kani@hp.com,
        linux-efi@vger.kernel.org, Ingo Molnar <mingo@kernel.org>,
        Yazen.Ghannam@amd.com
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> 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.