linux-kernel - Re: [PATCH v3] crypto: x86/sm2 -add Zhaoxin SM2 algorithm implementation

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Date:   Wed, 29 Nov 2023 16:04:32 +0800
From:   LeoLiu-oc <leoliu-oc@...oxin.com>
To:     Dave Hansen <dave.hansen@...el.com>, <herbert@...dor.apana.org.au>,
        <davem@...emloft.net>, <tglx@...utronix.de>, <mingo@...hat.com>,
        <bp@...en8.de>, <dave.hansen@...ux.intel.com>, <x86@...nel.org>,
        <hpa@...or.com>, <seanjc@...gle.com>, <kim.phillips@....com>,
        <pbonzini@...hat.com>, <babu.moger@....com>,
        <jiaxi.chen@...ux.intel.com>, <jmattson@...gle.com>,
        <pawan.kumar.gupta@...ux.intel.com>,
        <linux-crypto@...r.kernel.org>, <linux-kernel@...r.kernel.org>
CC:     <CobeChen@...oxin.com>, <TonyWWang@...oxin.com>,
        <YunShen@...oxin.com>, <Leoliu@...oxin.com>
Subject: Re: [PATCH v3] crypto: x86/sm2 -add Zhaoxin SM2 algorithm
 implementation



在 2023/11/29 15:24, LeoLiu-oc 写道:
> 
> 
> 在 2023/11/22 22:26, Dave Hansen 写道:
>>> +/* Zhaoxin sm2 verify function */
>>> +static inline size_t zhaoxin_gmi_sm2_verify(unsigned char *key, 
>>> unsigned char *hash,
>>> +                unsigned char *sig, unsigned char *scratch)
>>> +{
>>> +    size_t result;
>>> +
>>> +    asm volatile(
>>> +        ".byte 0xf2, 0x0f, 0xa6, 0xc0"
>>> +        :"=c"(result)
>>> +        :"a"(hash), "b"(key), "d"(SM2_CWORD_VERIFY), "S"(scratch), 
>>> "D"(sig)
>>> +        :"memory");
>>> +
>>> +    return result;
>>> +}
>>
>> What version of binutils supports this new instruction?
>>
> 
> The instruction has not yet been submitted to binutils. It will only be 
> used in the Zhaoxin sm2 driver, and we are evaluating the necessity of 
> submitting it to binutils.
> 
> Yours sincerely,
> Leoliu-oc

Sorry, Correct a clerical error. "Zhaoxin-rng" --> "Zhaoxin sm2".

Yours sincerely,
Leoliu-oc