linux-kernel - Re: [RFC PATCH 6/8] selftests/x86: Test Key Locker internal key maintenance

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Date:   Fri, 18 Dec 2020 10:43:18 +0000
From:   "Bae, Chang Seok" <chang.seok.bae@...el.com>
To:     Peter Zijlstra <peterz@...radead.org>
CC:     Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...nel.org>, "bp@...e.de" <bp@...e.de>,
        "luto@...nel.org" <luto@...nel.org>,
        "x86@...nel.org" <x86@...nel.org>,
        "herbert@...dor.apana.org.au" <herbert@...dor.apana.org.au>,
        "Williams, Dan J" <dan.j.williams@...el.com>,
        "Hansen, Dave" <dave.hansen@...el.com>,
        "Shankar, Ravi V" <ravi.v.shankar@...el.com>,
        "Sun, Ning" <ning.sun@...el.com>,
        "Dwarakanath, Kumar N" <kumar.n.dwarakanath@...el.com>,
        "linux-crypto@...r.kernel.org" <linux-crypto@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-kselftest@...r.kernel.org" <linux-kselftest@...r.kernel.org>
Subject: Re: [RFC PATCH 6/8] selftests/x86: Test Key Locker internal key
 maintenance


> On Dec 18, 2020, at 18:59, Peter Zijlstra <peterz@...radead.org> wrote:
> 
> On Wed, Dec 16, 2020 at 09:41:44AM -0800, Chang S. Bae wrote:
>> +	/* ENCODEKEY128 %EAX */
>> +	asm volatile (".byte 0xf3, 0xf, 0x38, 0xfa, 0xc0");
> 
> This is lacking a binutils version number.

I will add the version number when any new release begins to support
this.

Thanks,
Chang