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From: "Ahmed S. Darwish" <darwi@linutronix.de>
To: Tony W Wang-oc <TonyWWang-oc@zhaoxin.com>, x86-cpuid@lists.linux.dev
Cc: terry.bowman@amd.com, bp@alien8.de, feng.tang@intel.com,
	linux-kernel@vger.kernel.org, CobeChen@zhaoxin.com,
	TimGuo@zhaoxin.com, LeoLiu-oc@zhaoxin.com
Subject: Re: [PATCH] tools/x86/kcpuid: Add extended CPUID leaf 0xc0000001 support
Date: Wed, 9 Oct 2024 13:22:44 +0200	[thread overview]
Message-ID: <ZwZnhGfSPHTz64dm@lx-t490> (raw)
In-Reply-To: <20230530025922.4801-1-TonyWWang-oc@zhaoxin.com>

Hi Tony,

On Tue, 30 May 2023, Tony W Wang-oc wrote:
>
> CPUID leaf 0xc0000001 EDX bit2/3/6-13 are used by VIA/Cyrix/
> Centaur to defined CPU features.
>
> Zhaoxin use CPUID leaf 0xc0000001 EDX as:
> CPUID.(EAX=0xc0000001,ECX=0):EDX[bit 0]  SM2
> CPUID.(EAX=0xc0000001,ECX=0):EDX[bit 1]  SM2_EN
> CPUID.(EAX=0xc0000001,ECX=0):EDX[bit 4]  SM3 SM4
> CPUID.(EAX=0xc0000001,ECX=0):EDX[bit 5]  SM3_EN SM4_EN
> CPUID.(EAX=0xc0000001,ECX=0):EDX[bit 16] PARALLAX
> CPUID.(EAX=0xc0000001,ECX=0):EDX[bit 17] PARALLAX_EN
> CPUID.(EAX=0xc0000001,ECX=0):EDX[bit 20] TM3
> CPUID.(EAX=0xc0000001,ECX=0):EDX[bit 21] TM3_EN
> CPUID.(EAX=0xc0000001,ECX=0):EDX[bit 22] RNG2
> CPUID.(EAX=0xc0000001,ECX=0):EDX[bit 23] RNG2_EN
> CPUID.(EAX=0xc0000001,ECX=0):EDX[bit 25] PHE2
> CPUID.(EAX=0xc0000001,ECX=0):EDX[bit 26] PHE2_EN
> CPUID.(EAX=0xc0000001,ECX=0):EDX[bit 27] RSA
> CPUID.(EAX=0xc0000001,ECX=0):EDX[bit 28] RSA_EN
>

Just a short note.  I've added these bits to the x86-cpuid-db database:

    https://gitlab.com/x86-cpuid.org/x86-cpuid-db/-/blob/tip/db/xml/leaf_c0000001.xml

And they're now part of the project's v2.0 release:

    https://lore.kernel.org/x86-cpuid/ZwU0HtmCTj2rF2T8@lx-t490

I shall send a kcpuid PQ with the updated CSV at a later step.

Thanks,

--
Ahmed S. Darwish
Linutronix GmbH

      reply	other threads:[~2024-10-09 11:22 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-05-30  2:59 [PATCH] tools/x86/kcpuid: Add extended CPUID leaf 0xc0000001 support Tony W Wang-oc
2024-10-09 11:22 ` Ahmed S. Darwish [this message]

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