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Subject: Re: [PATCH v2 4/8] x86/spec_ctrl: Add sysctl knobs to enable/disable
 SPEC_CTRL feature
To: David Woodhouse <dwmw2@infradead.org>,
        Thomas Gleixner <tglx@linutronix.de>,
        Peter Zijlstra <peterz@infradead.org>
Cc: Dave Hansen <dave.hansen@intel.com>,
        Andy Lutomirski <luto@kernel.org>,
        Linus Torvalds <torvalds@linux-foundation.org>,
        Greg KH <gregkh@linuxfoundation.org>,
        Andrea Arcangeli <aarcange@redhat.com>,
        Andi Kleen <ak@linux.intel.com>,
        Arjan Van De Ven <arjan.van.de.ven@intel.com>,
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From: Tim Chen <tim.c.chen@linux.intel.com>
Message-ID: <b32ae421-7f1d-5d97-f43d-fe5dbe763d46@linux.intel.com>
Date: Tue, 9 Jan 2018 12:31:02 -0800
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On 01/09/2018 10:13 AM, David Woodhouse wrote:
> On Tue, 2018-01-09 at 09:55 -0800, Tim Chen wrote:
>>
>> Thomas,
>>
>> I'll be sending an updated patchset with boot option opt in for ibrs
>> and leave the control varaible out.  I agree that we can worry about the
>> control variable later.
> 
> Please base this on the spectre_v2= option that's already in
> tip/x86/pti.
> 

Will do that for boot option.

Tim