linux-kernel - Re: [PATCH 14/31] x86, pkeys: add functions to fetch PKRU

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Message-ID: <alpine.DEB.2.11.1601082032290.3575@nanos>
Date:	Fri, 8 Jan 2016 20:32:49 +0100 (CET)
From:	Thomas Gleixner <tglx@...utronix.de>
To:	Dave Hansen <dave@...1.net>
cc:	linux-kernel@...r.kernel.org, linux-mm@...ck.org, x86@...nel.org,
	dave.hansen@...ux.intel.com
Subject: Re: [PATCH 14/31] x86, pkeys: add functions to fetch PKRU

On Wed, 6 Jan 2016, Dave Hansen wrote:

> 
> From: Dave Hansen <dave.hansen@...ux.intel.com>
> 
> This adds the raw instruction to access PKRU as well as some
> accessor functions that correctly handle when the CPU does not
> support the instruction.  We don't use it here, but we will use
> read_pkru() in the next patch.
> 
> Signed-off-by: Dave Hansen <dave.hansen@...ux.intel.com>

Reviewed-by: Thomas Gleixner <tglx@...utronix.de>