linux-kernel - Re: [PATCH v2] X86: don't report PAT on CPUs that don't support it

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Date:   Wed, 7 Jun 2017 21:54:44 +0200
From:   Bernhard Held <berny156@....de>
To:     Mikulas Patocka <mpatocka@...hat.com>,
        Andy Lutomirski <luto@...nel.org>
Cc:     Toshi Kani <toshi.kani@...com>, Borislav Petkov <bp@...en8.de>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Brian Gerst <brgerst@...il.com>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        "H. Peter Anvin" <hpa@...or.com>, Ingo Molnar <mingo@...nel.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Peter Zijlstra <peterz@...radead.org>,
        "Luis R. Rodriguez" <mcgrof@...e.com>,
        Denys Vlasenko <dvlasenk@...hat.com>,
        Josh Poimboeuf <jpoimboe@...hat.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2] X86: don't report PAT on CPUs that don't support it

On 06/07/2017 at 12:49 AM, Mikulas Patocka wrote:
> Hi
> 
> Here I send the second version of the patch. It drops the change from
> boot_cpu_has(X86_FEATURE_PAT) to this_cpu_has(X86_FEATURE_PAT) (that
> caused kernel to be unbootable for some people).
> 
> Another change is that setup_arch() calls init_cache_modes() if PAT is
> disabled, so that init_cache_modes() is always called.
> 
> Mikulas

[PATCH v2] Works for me!

CHeers,
Bernhard