linux-kernel - Re: [PATCH] x86,seccomp,prctl: Remove PR_TSC

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Message-ID: <20141003201537.GN10583@worktop.programming.kicks-ass.net>
Date:	Fri, 3 Oct 2014 22:15:37 +0200
From:	Peter Zijlstra <peterz@...radead.org>
To:	Andy Lutomirski <luto@...capital.net>
Cc:	Andrea Arcangeli <aarcange@...hat.com>,
	Paul Mackerras <paulus@...ba.org>,
	Arnaldo Carvalho de Melo <acme@...nel.org>,
	X86 ML <x86@...nel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Ingo Molnar <mingo@...hat.com>,
	Kees Cook <keescook@...omium.org>,
	Erik Bosman <ebn310@....vu.nl>,
	"H. Peter Anvin" <hpa@...or.com>,
	Linux API <linux-api@...r.kernel.org>,
	Michael Kerrisk-manpages <mtk.manpages@...il.com>
Subject: Re: [PATCH] x86,seccomp,prctl: Remove PR_TSC_SIGSEGV and seccomp TSC
 filtering

On Fri, Oct 03, 2014 at 10:59:15AM -0700, Andy Lutomirski wrote:
> RDPMC is controlled by CR4.PCE, whereas RDTSC is controlled by
> CR4.TSD,

This is my understanding too, they're separate things.
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