From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.6 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 00FB8C5321D for ; Sun, 19 Apr 2020 16:29:54 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id CE39F21744 for ; Sun, 19 Apr 2020 16:29:53 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="gldqVV0W" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726565AbgDSQ3w (ORCPT ); Sun, 19 Apr 2020 12:29:52 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43968 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726521AbgDSQ3t (ORCPT ); Sun, 19 Apr 2020 12:29:49 -0400 Received: from mail-lj1-x241.google.com (mail-lj1-x241.google.com [IPv6:2a00:1450:4864:20::241]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 3E242C061A0C for ; Sun, 19 Apr 2020 09:29:48 -0700 (PDT) Received: by mail-lj1-x241.google.com with SMTP id b2so1789397ljp.4 for ; Sun, 19 Apr 2020 09:29:48 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id; bh=4iy7veB7VgIUBk675FYilXrEOwVsWoEtapBVxC4CVXk=; b=gldqVV0WwzdGlLC7qGAdPEfhrpGHP5eXNu6Iupu905mA6pbIhkQytbKTjdlN9sdoWd LvIyWpy9XF8MG7s9QEvP77Wc8qwu5nTMfytox9PAKld4RCxERfvwz/8dQ/0ybovlhF9J 4E76UCBCdv/RbtlFLAjLMuPPnapMR4Boqb0zv8Pjw5GxiZmdvqRdvDqKS6pWoOmMtBoq MqkMSHmCXcvU8O5zrs5GQOaSe8XBxc+eR1iXX+jW+KpRHxzs6C88U2PbA/9Q9glmIlMA eitVpJ2OasStedxS2U7PX9YqDSQb4MQTJN50n4+8enez7PeTSfZMvvWti5gnKnQKnAT0 8fMg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id; bh=4iy7veB7VgIUBk675FYilXrEOwVsWoEtapBVxC4CVXk=; b=kew50vJBnQ8PaeX9LEXU0tKvKDZvLaJZ5SRM7jb+YfKI75NXE+n9D5uABOJw8Jk8V+ LrS5wvRQ+78E5sxnQFfT0lT28RXQGIqlVdfstFj5ugUZ0tGPYZ7gVbvMMDKyASgCaJ32 MGpDhDwdSO2ZoK8sPaWxEgN88DbVRYzVmP0LtI/zuKx/UTshLGDqhm3BDmBPe+wN742z JxhZhf3YyFvSyNBxqJ6yloGUaNDGHES/EwaLQWer61IrP08dT/CUDbGe5fT9n/dpVtPl q8CY0ISE4hvJWFL2WFdGaDEg0xA9191BNo6jnRMUBO8mTOE00vgNz8fI/P6wfBk91VVn xzZw== X-Gm-Message-State: AGi0PuanWl5lV3PwEkO9YpyfcQzL1qy7oHQCwhbeAZaa+vWDgDANvP3o f5xB1m5FVGvP+KyVwitnvX1tDqtN1/4= X-Google-Smtp-Source: APiQypKtynYEbIlFEoQFibpa5XKcbsk6c9A0PwO56du/9If9b/gz866hODfJJ7OkpbXzch+tluphNg== X-Received: by 2002:a05:651c:2002:: with SMTP id s2mr5516250ljo.285.1587313786569; Sun, 19 Apr 2020 09:29:46 -0700 (PDT) Received: from test.lan ([91.105.39.216]) by smtp.gmail.com with ESMTPSA id w16sm6146170ljd.101.2020.04.19.09.29.45 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Sun, 19 Apr 2020 09:29:46 -0700 (PDT) From: Evalds Iodzevics To: linux-kernel@vger.kernel.org Cc: gregkh@linuxfoundation.org, Borislav Petkov , Thomas Gleixner Subject: [PATCH 1/2] x86/CPU: Add native CPUID variants returning a single datum Date: Sun, 19 Apr 2020 19:29:42 +0300 Message-Id: <20200419162943.3704-1-evalds.iodzevics@gmail.com> X-Mailer: git-send-email 2.17.4 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Borislav Petkov ... similarly to the cpuid_() variants. Signed-off-by: Borislav Petkov Link: http://lkml.kernel.org/r/20170109114147.5082-2-bp@alien8.de Signed-off-by: Thomas Gleixner --- arch/x86/include/asm/processor.h | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) diff --git a/arch/x86/include/asm/processor.h b/arch/x86/include/asm/processor.h index cac54e61c299..048942d53988 100644 --- a/arch/x86/include/asm/processor.h +++ b/arch/x86/include/asm/processor.h @@ -212,6 +212,24 @@ static inline void native_cpuid(unsigned int *eax, unsigned int *ebx, : "memory"); } +#define native_cpuid_reg(reg) \ +static inline unsigned int native_cpuid_##reg(unsigned int op) \ +{ \ + unsigned int eax = op, ebx, ecx = 0, edx; \ + \ + native_cpuid(&eax, &ebx, &ecx, &edx); \ + \ + return reg; \ +} + +/* + * Native CPUID functions returning a single datum. + */ +native_cpuid_reg(eax) +native_cpuid_reg(ebx) +native_cpuid_reg(ecx) +native_cpuid_reg(edx) + static inline void load_cr3(pgd_t *pgdir) { write_cr3(__pa(pgdir)); -- 2.17.4