linux-kernel - Re: [PATCH v13 05/13] x86/msr: Add SGX definitions to msr-index.h

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Message-ID: <c4c85a47-6de4-1171-4fd5-4a4bdd4d31db@intel.com>
Date:   Mon, 27 Aug 2018 12:42:32 -0700
From:   Dave Hansen <dave.hansen@...el.com>
To:     Jarkko Sakkinen <jarkko.sakkinen@...ux.intel.com>, x86@...nel.org,
        platform-driver-x86@...r.kernel.org
Cc:     sean.j.christopherson@...el.com, nhorman@...hat.com,
        npmccallum@...hat.com, linux-sgx@...r.kernel.org,
        Haim Cohen <haim.cohen@...el.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>,
        Tom Lendacky <thomas.lendacky@....com>,
        Paolo Bonzini <pbonzini@...hat.com>,
        David Woodhouse <dwmw@...zon.co.uk>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Janakarajan Natarajan <Janakarajan.Natarajan@....com>,
        Matt Turner <mattst88@...il.com>,
        Andy Lutomirski <luto@...nel.org>,
        "open list:X86 ARCHITECTURE (32-BIT AND 64-BIT)" 
        <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v13 05/13] x86/msr: Add SGX definitions to msr-index.h

On 08/27/2018 11:53 AM, Jarkko Sakkinen wrote:
> @@ -866,10 +867,9 @@ void get_cpu_cap(struct cpuinfo_x86 *c)
>  		}
>  	}
>  
> -	/* Intel SGX features: level 0x00000012 */
> -	if (c->cpuid_level >= 0x00000012) {
> -		cpuid(0x00000012, &eax, &ebx, &ecx, &edx);
> -
> +	/* Intel SGX features */
> +	if (c->cpuid_level >= SGX_CPUID) {
> +		cpuid(SGX_CPUID,  &eax, &ebx, &ecx, &edx);
>  		c->x86_capability[CPUID_12_EAX] = eax;
>  	}

This hunk has no apparent connection to the changelog.