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Date: Tue, 12 Jan 2016 14:38:20 +0100
From: Ingo Molnar <mingo@kernel.org>
To: Borislav Petkov <bp@alien8.de>
Cc: Christoph Hellwig <hch@infradead.org>, Andy Lutomirski <luto@kernel.org>,
        Dave Hansen <dave.hansen@linux.intel.com>,
        "H. Peter Anvin" <hpa@zytor.com>, Thomas Gleixner <tglx@linutronix.de>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
        Brian Gerst <brgerst@gmail.com>, Oleg Nesterov <oleg@redhat.com>
Subject: Re: Rethinking sigcontext's xfeatures slightly for PKRU's benefit?
Message-ID: <20160112133820.GA6840@gmail.com>
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 <20151218085914.GA16529@infradead.org>
 <20151218125753.GF16977@pd.tnic>
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* Borislav Petkov <bp@alien8.de> wrote:

> On Fri, Dec 18, 2015 at 12:59:14AM -0800, Christoph Hellwig wrote:
> > Stupid question, but what the heck is PKRU?  A grep of the kernel tree
> > shows no results, and a web search returns mostly Thai language results.
> 
> That should explain it:
> 
> https://lkml.kernel.org/r/20151214190542.39C4886D@viggo.jf.intel.com

There's also an LWN article from last year, as background:

  https://lwn.net/Articles/643797/

Thanks,

	Ingo