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=-6.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS,URIBL_BLOCKED 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 86A8EC00449 for ; Mon, 8 Oct 2018 09:57:16 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 400552086D for ; Mon, 8 Oct 2018 09:57:16 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 400552086D Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=zytor.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727451AbeJHRIH (ORCPT ); Mon, 8 Oct 2018 13:08:07 -0400 Received: from terminus.zytor.com ([198.137.202.136]:48169 "EHLO terminus.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726193AbeJHRIH (ORCPT ); Mon, 8 Oct 2018 13:08:07 -0400 Received: from terminus.zytor.com (localhost [127.0.0.1]) by terminus.zytor.com (8.15.2/8.15.2) with ESMTPS id w989uYsY559985 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO); Mon, 8 Oct 2018 02:56:34 -0700 Received: (from tipbot@localhost) by terminus.zytor.com (8.15.2/8.15.2/Submit) id w989uY1l559982; Mon, 8 Oct 2018 02:56:34 -0700 Date: Mon, 8 Oct 2018 02:56:34 -0700 X-Authentication-Warning: terminus.zytor.com: tipbot set sender to tipbot@zytor.com using -f From: "tip-bot for Chang S. Bae" Message-ID: Cc: riel@surriel.com, torvalds@linux-foundation.org, luto@amacapital.net, ravi.v.shankar@intel.com, luto@kernel.org, brgerst@gmail.com, bp@alien8.de, ak@linux.intel.com, hpa@zytor.com, peterz@infradead.org, markus.t.metzger@intel.com, dave.hansen@linux.intel.com, tglx@linutronix.de, chang.seok.bae@intel.com, dvlasenk@redhat.com, linux-kernel@vger.kernel.org, mingo@kernel.org Reply-To: chang.seok.bae@intel.com, tglx@linutronix.de, dave.hansen@linux.intel.com, mingo@kernel.org, linux-kernel@vger.kernel.org, dvlasenk@redhat.com, ravi.v.shankar@intel.com, riel@surriel.com, torvalds@linux-foundation.org, luto@amacapital.net, markus.t.metzger@intel.com, peterz@infradead.org, ak@linux.intel.com, hpa@zytor.com, bp@alien8.de, luto@kernel.org, brgerst@gmail.com In-Reply-To: <1537312139-5580-5-git-send-email-chang.seok.bae@intel.com> References: <1537312139-5580-5-git-send-email-chang.seok.bae@intel.com> To: linux-tip-commits@vger.kernel.org Subject: [tip:x86/asm] x86/fsgsbase/64: Convert the ELF core dump code to the new FSGSBASE helpers Git-Commit-ID: 824eea38d239fb2a6027e65e18a5daef23019b00 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 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Commit-ID: 824eea38d239fb2a6027e65e18a5daef23019b00 Gitweb: https://git.kernel.org/tip/824eea38d239fb2a6027e65e18a5daef23019b00 Author: Chang S. Bae AuthorDate: Tue, 18 Sep 2018 16:08:55 -0700 Committer: Ingo Molnar CommitDate: Mon, 8 Oct 2018 10:41:09 +0200 x86/fsgsbase/64: Convert the ELF core dump code to the new FSGSBASE helpers Replace open-coded rdmsr()'s with their API counterparts. No change in functionality intended. [ mingo: Wrote new changelog. ] Based-on-code-from: Andy Lutomirski Signed-off-by: Chang S. Bae Reviewed-by: Andi Kleen Reviewed-by: Andy Lutomirski Reviewed-by: Thomas Gleixner Cc: Andy Lutomirski Cc: Borislav Petkov Cc: Brian Gerst Cc: Dave Hansen Cc: Denys Vlasenko Cc: H. Peter Anvin Cc: Linus Torvalds Cc: Markus T Metzger Cc: Peter Zijlstra Cc: Ravi Shankar Cc: Rik van Riel Link: http://lkml.kernel.org/r/1537312139-5580-5-git-send-email-chang.seok.bae@intel.com Signed-off-by: Ingo Molnar --- arch/x86/include/asm/elf.h | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/arch/x86/include/asm/elf.h b/arch/x86/include/asm/elf.h index 0d157d2a1e2a..1527ec351036 100644 --- a/arch/x86/include/asm/elf.h +++ b/arch/x86/include/asm/elf.h @@ -10,6 +10,7 @@ #include #include #include +#include typedef unsigned long elf_greg_t; @@ -205,7 +206,6 @@ void set_personality_ia32(bool); #define ELF_CORE_COPY_REGS(pr_reg, regs) \ do { \ - unsigned long base; \ unsigned v; \ (pr_reg)[0] = (regs)->r15; \ (pr_reg)[1] = (regs)->r14; \ @@ -228,8 +228,8 @@ do { \ (pr_reg)[18] = (regs)->flags; \ (pr_reg)[19] = (regs)->sp; \ (pr_reg)[20] = (regs)->ss; \ - rdmsrl(MSR_FS_BASE, base); (pr_reg)[21] = base; \ - rdmsrl(MSR_KERNEL_GS_BASE, base); (pr_reg)[22] = base; \ + (pr_reg)[21] = x86_fsbase_read_cpu(); \ + (pr_reg)[22] = x86_gsbase_read_cpu_inactive(); \ asm("movl %%ds,%0" : "=r" (v)); (pr_reg)[23] = v; \ asm("movl %%es,%0" : "=r" (v)); (pr_reg)[24] = v; \ asm("movl %%fs,%0" : "=r" (v)); (pr_reg)[25] = v; \