Received-SPF: pass (google.com: domain of linux-crypto+bounces-2866-linux.lists.archive=gmail.com@vger.kernel.org designates 2604:1380:45d1:ec00::1 as permitted sender) client-ip=2604:1380:45d1:ec00::1;
Sender: Ingo Molnar <mingo.kernel.org@gmail.com>
Date: Tue, 26 Mar 2024 09:10:13 +0100
From: Ingo Molnar <mingo@kernel.org>
To: Eric Biggers <ebiggers@kernel.org>
Cc: linux-crypto@vger.kernel.org, x86@kernel.org,
	linux-kernel@vger.kernel.org, Ard Biesheuvel <ardb@kernel.org>,
	Andy Lutomirski <luto@kernel.org>,
	"Chang S . Bae" <chang.seok.bae@intel.com>
Subject: Re: [PATCH 1/6] x86: add kconfig symbols for assembler VAES and
 VPCLMULQDQ support
Message-ID: <ZgKC5dcqWSEkwuTX@gmail.com>
References: <20240326080305.402382-1-ebiggers@kernel.org>
 <20240326080305.402382-2-ebiggers@kernel.org>
Precedence: bulk
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <20240326080305.402382-2-ebiggers@kernel.org>


* Eric Biggers <ebiggers@kernel.org> wrote:

> From: Eric Biggers <ebiggers@google.com>
> 
> Add config symbols AS_VAES and AS_VPCLMULQDQ that expose whether the
> assembler supports the vector AES and carryless multiplication
> cryptographic extensions.
> 
> Signed-off-by: Eric Biggers <ebiggers@google.com>
> ---
>  arch/x86/Kconfig.assembler | 10 ++++++++++
>  1 file changed, 10 insertions(+)
> 
> diff --git a/arch/x86/Kconfig.assembler b/arch/x86/Kconfig.assembler
> index 8ad41da301e5..59aedf32c4ea 100644
> --- a/arch/x86/Kconfig.assembler
> +++ b/arch/x86/Kconfig.assembler
> @@ -23,9 +23,19 @@ config AS_TPAUSE
>  config AS_GFNI
>  	def_bool $(as-instr,vgf2p8mulb %xmm0$(comma)%xmm1$(comma)%xmm2)
>  	help
>  	  Supported by binutils >= 2.30 and LLVM integrated assembler
>  
> +config AS_VAES
> +	def_bool $(as-instr,vaesenc %ymm0$(comma)%ymm1$(comma)%ymm2)
> +	help
> +	  Supported by binutils >= 2.30 and LLVM integrated assembler

Nit: any reason it isn't called AS_VAESENC, like the instruction itself?

The other new AS_ Kconfig symbols follow the same nomenclature:

> +config AS_VPCLMULQDQ
> +	def_bool $(as-instr,vpclmulqdq \$0x10$(comma)%ymm0$(comma)%ymm1$(comma)%ymm2)
> +	help
> +	  Supported by binutils >= 2.30 and LLVM integrated assembler
> +
>  config AS_WRUSS
>  	def_bool $(as-instr,wrussq %rax$(comma)(%rbx))
>  	help
>  	  Supported by binutils >= 2.31 and LLVM integrated assembler

With the nit above fixed:

  Reviewed-by: Ingo Molnar <mingo@kernel.org>

Thanks,

	Ingo