From patchwork Mon Apr 10 22:59:30 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Chang S. Bae" X-Patchwork-Id: 672415 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id BF527C77B61 for ; Mon, 10 Apr 2023 23:11:49 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229814AbjDJXLp (ORCPT ); Mon, 10 Apr 2023 19:11:45 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47544 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229743AbjDJXLm (ORCPT ); Mon, 10 Apr 2023 19:11:42 -0400 Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id CA528210D; Mon, 10 Apr 2023 16:11:41 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1681168301; x=1712704301; h=from:to:cc:subject:date:message-id:in-reply-to: references; bh=JnGN/QzStCZJLTyrQM3ya368mjdTMP3eVWxv2wk0pgc=; b=HnwJ5GPCbD48vmZL4KHROKap7Qjx8FWF9mTTLFLXbMkDjHEYptk/xSgv WupexBecF/v/S4I6cBTIXfmsjDMOwXbqENbVHYcfuXKnxN618/D31FDWD Yb5UFLKfY5LaJA8uq5NOFRyuIJfyYy8VV+g7jQXEeuKrXi5+AIQBFe/xs sBh9+PidNRxVk6MoPfxFCTSNerAZrlbo78qip8L2+J4MJvCIjtENpTDwC 7aBGzYNjgCxKinrcdyw/BlWQAWhgKwahtFf9sBjNL4inmzYBuKC5C4VcS SDpdIA+boDiVVx99SA+/3iv1LnOia1TiuvFU+nITLh1VdSJMrzbYdOMHW A==; X-IronPort-AV: E=McAfee;i="6600,9927,10676"; a="340962548" X-IronPort-AV: E=Sophos;i="5.98,335,1673942400"; d="scan'208";a="340962548" Received: from fmsmga004.fm.intel.com ([10.253.24.48]) by fmsmga102.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 10 Apr 2023 16:11:40 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10676"; a="757608005" X-IronPort-AV: E=Sophos;i="5.98,335,1673942400"; d="scan'208";a="757608005" Received: from chang-linux-3.sc.intel.com ([172.25.66.173]) by fmsmga004.fm.intel.com with ESMTP; 10 Apr 2023 16:11:40 -0700 From: "Chang S. Bae" To: linux-kernel@vger.kernel.org, linux-crypto@vger.kernel.org, dm-devel@redhat.com Cc: ebiggers@kernel.org, gmazyland@gmail.com, luto@kernel.org, dave.hansen@linux.intel.com, tglx@linutronix.de, bp@suse.de, mingo@kernel.org, x86@kernel.org, herbert@gondor.apana.org.au, ardb@kernel.org, dan.j.williams@intel.com, bernie.keany@intel.com, charishma1.gairuboyina@intel.com, lalithambika.krishnakumar@intel.com, chang.seok.bae@intel.com, Ingo Molnar , Borislav Petkov , "H. Peter Anvin" Subject: [PATCH v6 06/12] x86/keylocker: Define Key Locker CPUID leaf Date: Mon, 10 Apr 2023 15:59:30 -0700 Message-Id: <20230410225936.8940-7-chang.seok.bae@intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20230410225936.8940-1-chang.seok.bae@intel.com> References: <20220112211258.21115-1-chang.seok.bae@intel.com> <20230410225936.8940-1-chang.seok.bae@intel.com> Precedence: bulk List-ID: X-Mailing-List: linux-crypto@vger.kernel.org Define the feature-specific CPUID leaf and bits. Both Key Locker enabling code in the x86 core and AES Key Locker code in the crypto library will reference them. Signed-off-by: Chang S. Bae Reviewed-by: Dan Williams Cc: Thomas Gleixner Cc: Ingo Molnar Cc: Borislav Petkov Cc: Dave Hansen Cc: "H. Peter Anvin" Cc: x86@kernel.org Cc: linux-kernel@vger.kernel.org --- Changes from RFC v2: * Separate out the code as a new patch. --- arch/x86/include/asm/keylocker.h | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/arch/x86/include/asm/keylocker.h b/arch/x86/include/asm/keylocker.h index df84c83228a1..e85dfb6c1524 100644 --- a/arch/x86/include/asm/keylocker.h +++ b/arch/x86/include/asm/keylocker.h @@ -5,6 +5,7 @@ #ifndef __ASSEMBLY__ +#include #include /** @@ -21,5 +22,11 @@ struct iwkey { struct reg_128_bit encryption_key[2]; }; +#define KEYLOCKER_CPUID 0x019 +#define KEYLOCKER_CPUID_EAX_SUPERVISOR BIT(0) +#define KEYLOCKER_CPUID_EBX_AESKLE BIT(0) +#define KEYLOCKER_CPUID_EBX_WIDE BIT(2) +#define KEYLOCKER_CPUID_EBX_BACKUP BIT(4) + #endif /*__ASSEMBLY__ */ #endif /* _ASM_KEYLOCKER_H */