From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932751AbdAIWQV (ORCPT ); Mon, 9 Jan 2017 17:16:21 -0500 Received: from terminus.zytor.com ([198.137.202.10]:53374 "EHLO terminus.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932080AbdAIWQU (ORCPT ); Mon, 9 Jan 2017 17:16:20 -0500 Date: Mon, 9 Jan 2017 14:16:07 -0800 From: tip-bot for Borislav Petkov Message-ID: Cc: bp@suse.de, mingo@kernel.org, linux-kernel@vger.kernel.org, hpa@zytor.com, tglx@linutronix.de Reply-To: mingo@kernel.org, hpa@zytor.com, linux-kernel@vger.kernel.org, tglx@linutronix.de, bp@suse.de In-Reply-To: <20170109114147.5082-2-bp@alien8.de> References: <20170109114147.5082-2-bp@alien8.de> To: linux-tip-commits@vger.kernel.org Subject: [tip:x86/urgent] x86/CPU: Add native CPUID variants returning a single datum Git-Commit-ID: 5dedade6dfa243c130b85d1e4daba6f027805033 X-Mailer: tip-git-log-daemon Robot-ID: Robot-Unsubscribe: Contact to get blacklisted from these emails MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset=UTF-8 Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Commit-ID: 5dedade6dfa243c130b85d1e4daba6f027805033 Gitweb: http://git.kernel.org/tip/5dedade6dfa243c130b85d1e4daba6f027805033 Author: Borislav Petkov AuthorDate: Mon, 9 Jan 2017 12:41:43 +0100 Committer: Thomas Gleixner CommitDate: Mon, 9 Jan 2017 23:11:13 +0100 x86/CPU: Add native CPUID variants returning a single datum ... 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 eaf1005..1be64da 100644 --- a/arch/x86/include/asm/processor.h +++ b/arch/x86/include/asm/processor.h @@ -219,6 +219,24 @@ 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));