linux-kernel - Re: [PATCH v2 09/10] x86/mm: Enable CR4.PCIDE on supported systems

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Message-ID: <37ff0036-e33c-84d2-2c5d-8c85d1245064@suse.com>
Date:   Wed, 14 Jun 2017 07:30:32 +0200
From:   Juergen Gross <jgross@...e.com>
To:     Andy Lutomirski <luto@...nel.org>, x86@...nel.org
Cc:     linux-kernel@...r.kernel.org, Borislav Petkov <bp@...en8.de>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Mel Gorman <mgorman@...e.de>,
        "linux-mm@...ck.org" <linux-mm@...ck.org>,
        Nadav Amit <nadav.amit@...il.com>,
        Rik van Riel <riel@...hat.com>,
        Dave Hansen <dave.hansen@...el.com>,
        Arjan van de Ven <arjan@...ux.intel.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Boris Ostrovsky <boris.ostrovsky@...cle.com>
Subject: Re: [PATCH v2 09/10] x86/mm: Enable CR4.PCIDE on supported systems

On 14/06/17 06:56, Andy Lutomirski wrote:
> We can use PCID if the CPU has PCID and PGE and we're not on Xen.
> 
> By itself, this has no effect.  The next patch will start using
> PCID.
> 
> Cc: Juergen Gross <jgross@...e.com>
> Cc: Boris Ostrovsky <boris.ostrovsky@...cle.com>
> Signed-off-by: Andy Lutomirski <luto@...nel.org>

Reviewed-by: Juergen Gross <jgross@...e.com>


Thanks,

Juergen