linux-kernel - RE: [PATCH v13 02/13] x86/cpufeature: Add SGX and SGX

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Date:   Wed, 29 Aug 2018 07:36:13 +0000
From:   "Huang, Kai" <kai.huang@...el.com>
To:     Jarkko Sakkinen <jarkko.sakkinen@...ux.intel.com>
CC:     "x86@...nel.org" <x86@...nel.org>,
        "platform-driver-x86@...r.kernel.org" 
        <platform-driver-x86@...r.kernel.org>,
        "Hansen, Dave" <dave.hansen@...el.com>,
        "Christopherson, Sean J" <sean.j.christopherson@...el.com>,
        "nhorman@...hat.com" <nhorman@...hat.com>,
        "npmccallum@...hat.com" <npmccallum@...hat.com>,
        "linux-sgx@...r.kernel.org" <linux-sgx@...r.kernel.org>,
        Kai Huang <kai.huang@...ux.intel.com>,
        "Thomas Gleixner" <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>,
        "H. Peter Anvin" <hpa@...or.com>, Borislav Petkov <bp@...e.de>,
        Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>,
        David Woodhouse <dwmw@...zon.co.uk>,
        "open list:X86 ARCHITECTURE (32-BIT AND 64-BIT)" 
        <linux-kernel@...r.kernel.org>
Subject: RE: [PATCH v13 02/13] x86/cpufeature: Add SGX and SGX_LC CPU
 features

> -----Original Message-----
> From: Jarkko Sakkinen [mailto:jarkko.sakkinen@...ux.intel.com]
> Sent: Tuesday, August 28, 2018 7:17 PM
> To: Huang, Kai <kai.huang@...el.com>
> Cc: x86@...nel.org; platform-driver-x86@...r.kernel.org; Hansen, Dave
> <dave.hansen@...el.com>; Christopherson, Sean J
> <sean.j.christopherson@...el.com>; nhorman@...hat.com;
> npmccallum@...hat.com; linux-sgx@...r.kernel.org; Kai Huang
> <kai.huang@...ux.intel.com>; Thomas Gleixner <tglx@...utronix.de>; Ingo
> Molnar <mingo@...hat.com>; H. Peter Anvin <hpa@...or.com>; Borislav
> Petkov <bp@...e.de>; Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>;
> David Woodhouse <dwmw@...zon.co.uk>; open list:X86 ARCHITECTURE (32-
> BIT AND 64-BIT) <linux-kernel@...r.kernel.org>
> Subject: Re: [PATCH v13 02/13] x86/cpufeature: Add SGX and SGX_LC CPU
> features
> 
> On Tue, Aug 28, 2018 at 12:07:41AM +0000, Huang, Kai wrote:
> > > +#define X86_FEATURE_SGX_LC		(16*32+30) /* supports SGX
> launch
> > > configuration */
> >
> > Sorry if it was me who wrote the comment "SGX launch configuration". I
> > think we should just use "SGX launch control". :)
> 
> Not sure if we should change though. The former is more self-explaining, the
> latter is "more official".

I'll let you decide.  To me the comment should explain what does "LC" mean, and to me it means "launch control". :)

Thanks,
-Kai
> 
> /Jarkko