From owner-svn-src-head@freebsd.org Wed Jan 10 22:41:02 2018 Return-Path: Delivered-To: svn-src-head@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 0B650E7B365; Wed, 10 Jan 2018 22:41:02 +0000 (UTC) (envelope-from cem@FreeBSD.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "mxrelay.nyi.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id DA67A70C8A; Wed, 10 Jan 2018 22:41:01 +0000 (UTC) (envelope-from cem@FreeBSD.org) Received: from repo.freebsd.org (repo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 273FD42D2; Wed, 10 Jan 2018 22:41:01 +0000 (UTC) (envelope-from cem@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id w0AMf0U3055831; Wed, 10 Jan 2018 22:41:00 GMT (envelope-from cem@FreeBSD.org) Received: (from cem@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id w0AMf0Xc055829; Wed, 10 Jan 2018 22:41:00 GMT (envelope-from cem@FreeBSD.org) Message-Id: <201801102241.w0AMf0Xc055829@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: cem set sender to cem@FreeBSD.org using -f From: Conrad Meyer Date: Wed, 10 Jan 2018 22:41:00 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r327801 - in head/sys: amd64/amd64 i386/i386 X-SVN-Group: head X-SVN-Commit-Author: cem X-SVN-Commit-Paths: in head/sys: amd64/amd64 i386/i386 X-SVN-Commit-Revision: 327801 X-SVN-Commit-Repository: base MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-head@freebsd.org X-Mailman-Version: 2.1.25 Precedence: list List-Id: SVN commit messages for the src tree for head/-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 10 Jan 2018 22:41:02 -0000 Author: cem Date: Wed Jan 10 22:41:00 2018 New Revision: 327801 URL: https://svnweb.freebsd.org/changeset/base/327801 Log: x86: Document purpose of _safe variants of {rd,wr}msr() Sponsored by: Dell EMC Isilon Modified: head/sys/amd64/amd64/support.S head/sys/i386/i386/support.s Modified: head/sys/amd64/amd64/support.S ============================================================================== --- head/sys/amd64/amd64/support.S Wed Jan 10 22:20:49 2018 (r327800) +++ head/sys/amd64/amd64/support.S Wed Jan 10 22:41:00 2018 (r327801) @@ -763,7 +763,8 @@ ENTRY(longjmp) END(longjmp) /* - * Support for reading MSRs in the safe manner. + * Support for reading MSRs in the safe manner. (Instead of panic on #gp, + * return an error.) */ ENTRY(rdmsr_safe) /* int rdmsr_safe(u_int msr, uint64_t *data) */ @@ -783,7 +784,8 @@ ENTRY(rdmsr_safe) ret /* - * Support for writing MSRs in the safe manner. + * Support for writing MSRs in the safe manner. (Instead of panic on #gp, + * return an error.) */ ENTRY(wrmsr_safe) /* int wrmsr_safe(u_int msr, uint64_t data) */ Modified: head/sys/i386/i386/support.s ============================================================================== --- head/sys/i386/i386/support.s Wed Jan 10 22:20:49 2018 (r327800) +++ head/sys/i386/i386/support.s Wed Jan 10 22:41:00 2018 (r327801) @@ -790,7 +790,8 @@ ENTRY(longjmp) END(longjmp) /* - * Support for reading MSRs in the safe manner. + * Support for reading MSRs in the safe manner. (Instead of panic on #gp, + * return an error.) */ ENTRY(rdmsr_safe) /* int rdmsr_safe(u_int msr, uint64_t *data) */ @@ -810,7 +811,8 @@ ENTRY(rdmsr_safe) ret /* - * Support for writing MSRs in the safe manner. + * Support for writing MSRs in the safe manner. (Instead of panic on #gp, + * return an error.) */ ENTRY(wrmsr_safe) /* int wrmsr_safe(u_int msr, uint64_t data) */