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Message-ID: <f9a1d0d9-12ae-45ff-a030-93615df21ec5@zhaoxin.com>
Date:   Wed, 29 Nov 2023 16:04:32 +0800
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Subject: Re: [PATCH v3] crypto: x86/sm2 -add Zhaoxin SM2 algorithm
 implementation
From:   LeoLiu-oc <leoliu-oc@zhaoxin.com>
To:     Dave Hansen <dave.hansen@intel.com>, <herbert@gondor.apana.org.au>,
        <davem@davemloft.net>, <tglx@linutronix.de>, <mingo@redhat.com>,
        <bp@alien8.de>, <dave.hansen@linux.intel.com>, <x86@kernel.org>,
        <hpa@zytor.com>, <seanjc@google.com>, <kim.phillips@amd.com>,
        <pbonzini@redhat.com>, <babu.moger@amd.com>,
        <jiaxi.chen@linux.intel.com>, <jmattson@google.com>,
        <pawan.kumar.gupta@linux.intel.com>,
        <linux-crypto@vger.kernel.org>, <linux-kernel@vger.kernel.org>
CC:     <CobeChen@zhaoxin.com>, <TonyWWang@zhaoxin.com>,
        <YunShen@zhaoxin.com>, <Leoliu@zhaoxin.com>
References: <20231109094744.545887-1-LeoLiu-oc@zhaoxin.com>
 <20231122064355.638946-1-LeoLiu-oc@zhaoxin.com>
 <aa7bbecc-dcd5-4757-8f8a-1eb2ab0d529b@intel.com>
 <8c2cca04-140a-4b0c-b478-5bdc437b5413@zhaoxin.com>
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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