linux-kernel - RE: [PATCH v6 11/12] crypto: x86/aes-kl - Support AES algorithm using Key Locker instructions

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Message-ID: <MW5PR84MB1842D5D264A5B067934F30CEAB719@MW5PR84MB1842.NAMPRD84.PROD.OUTLOOK.COM>
Date:   Mon, 8 May 2023 19:21:14 +0000
From:   "Elliott, Robert (Servers)" <elliott@....com>
To:     "Chang S. Bae" <chang.seok.bae@...el.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-crypto@...r.kernel.org" <linux-crypto@...r.kernel.org>,
        "dm-devel@...hat.com" <dm-devel@...hat.com>
CC:     "ebiggers@...nel.org" <ebiggers@...nel.org>,
        "gmazyland@...il.com" <gmazyland@...il.com>,
        "luto@...nel.org" <luto@...nel.org>,
        "dave.hansen@...ux.intel.com" <dave.hansen@...ux.intel.com>,
        "tglx@...utronix.de" <tglx@...utronix.de>,
        "bp@...e.de" <bp@...e.de>, "mingo@...nel.org" <mingo@...nel.org>,
        "x86@...nel.org" <x86@...nel.org>,
        "herbert@...dor.apana.org.au" <herbert@...dor.apana.org.au>,
        "ardb@...nel.org" <ardb@...nel.org>,
        "dan.j.williams@...el.com" <dan.j.williams@...el.com>,
        "bernie.keany@...el.com" <bernie.keany@...el.com>,
        "charishma1.gairuboyina@...el.com" <charishma1.gairuboyina@...el.com>,
        "lalithambika.krishnakumar@...el.com" 
        <lalithambika.krishnakumar@...el.com>,
        "David S. Miller" <davem@...emloft.net>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        "H. Peter Anvin" <hpa@...or.com>,
        Nathan Chancellor <nathan@...nel.org>,
        Nick Desaulniers <ndesaulniers@...gle.com>,
        Tom Rix <trix@...hat.com>
Subject: RE: [PATCH v6 11/12] crypto: x86/aes-kl - Support AES algorithm using
 Key Locker instructions


> diff --git a/crypto/Kconfig b/crypto/Kconfig
...
> +config AS_HAS_KEYLOCKER
> +	def_bool $(as-instr,encodekey256 %eax$(comma)%eax)
> +	help
> +	  Supported by binutils >= 2.36 and LLVM integrated assembler >= V12
> +
> +config CRYPTO_AES_KL
> +	tristate "AES cipher algorithms (AES-KL)"
> +	depends on AS_HAS_KEYLOCKER
> +	depends on CRYPTO_AES_NI_INTEL
> +	select X86_KEYLOCKER

This material belongs in arch/x86/Kconfig now (which didn't exist when
this patch series began).