linux-kernel - Re: Rethinking sigcontext's xfeatures slightly for PKRU's benefit?

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Message-ID: <20160112133820.GA6840@gmail.com>
Date:	Tue, 12 Jan 2016 14:38:20 +0100
From:	Ingo Molnar <mingo@...nel.org>
To:	Borislav Petkov <bp@...en8.de>
Cc:	Christoph Hellwig <hch@...radead.org>,
	Andy Lutomirski <luto@...nel.org>,
	Dave Hansen <dave.hansen@...ux.intel.com>,
	"H. Peter Anvin" <hpa@...or.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Brian Gerst <brgerst@...il.com>,
	Oleg Nesterov <oleg@...hat.com>
Subject: Re: Rethinking sigcontext's xfeatures slightly for PKRU's benefit?


* Borislav Petkov <bp@...en8.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