Message-ID: <52E5C000.1050506@zytor.com>
Date: Sun, 26 Jan 2014 18:10:08 -0800
From: "H. Peter Anvin" <hpa@zytor.com>
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To: Ren Qiaowei <qiaowei.ren@intel.com>, Ingo Molnar <mingo@kernel.org>
CC: Thomas Gleixner <tglx@linutronix.de>, Ingo Molnar <mingo@redhat.com>,
        x86@kernel.org, linux-kernel@vger.kernel.org,
        Peter Zijlstra <a.p.zijlstra@chello.nl>
Subject: Re: [PATCH v3 3/4] x86, mpx: add prctl commands PR_MPX_INIT, PR_MPX_RELEASE
References: <1390727338-20487-1-git-send-email-qiaowei.ren@intel.com> <1390727338-20487-4-git-send-email-qiaowei.ren@intel.com> <20140126082201.GB28831@gmail.com> <52E4C5F2.8070707@intel.com> <20140126083942.GB29339@gmail.com> <52E5BB66.8060104@zytor.com> <52E5BC9C.9070400@intel.com>
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On 01/26/2014 05:55 PM, Ren Qiaowei wrote:
>
> Peter, you mean we should remove these two call and do what they do in
> user-space, right?
> 

Unless we think there is a benefit to the kernel to have a on/off switch
for the #BR exception (if disabled, all #BR exceptions are signals,
regardless of source.)

There might be, would like other people's opinion.

	-hpa


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