From owner-svn-src-head@freebsd.org Fri Jul 13 20:39:02 2018 Return-Path: Delivered-To: svn-src-head@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 0A28E104BD0B; Fri, 13 Jul 2018 20:39:02 +0000 (UTC) (envelope-from kostikbel@gmail.com) Received: from kib.kiev.ua (kib.kiev.ua [IPv6:2001:470:d5e7:1::1]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 5B6E0775B3; Fri, 13 Jul 2018 20:39:01 +0000 (UTC) (envelope-from kostikbel@gmail.com) Received: from tom.home (kib@localhost [127.0.0.1]) by kib.kiev.ua (8.15.2/8.15.2) with ESMTPS id w6DKcsN4075686 (version=TLSv1.2 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO); Fri, 13 Jul 2018 23:38:57 +0300 (EEST) (envelope-from kostikbel@gmail.com) DKIM-Filter: OpenDKIM Filter v2.10.3 kib.kiev.ua w6DKcsN4075686 Received: (from kostik@localhost) by tom.home (8.15.2/8.15.2/Submit) id w6DKcsEX075685; Fri, 13 Jul 2018 23:38:54 +0300 (EEST) (envelope-from kostikbel@gmail.com) X-Authentication-Warning: tom.home: kostik set sender to kostikbel@gmail.com using -f Date: Fri, 13 Jul 2018 23:38:54 +0300 From: Konstantin Belousov To: Mark Johnston Cc: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: Re: svn commit: r336257 - head/sys/x86/include Message-ID: <20180713203854.GP5562@kib.kiev.ua> References: <201807131942.w6DJgxN1085315@repo.freebsd.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <201807131942.w6DJgxN1085315@repo.freebsd.org> User-Agent: Mutt/1.10.0 (2018-05-17) X-Spam-Status: No, score=-2.0 required=5.0 tests=ALL_TRUSTED,BAYES_00, DKIM_ADSP_CUSTOM_MED,FREEMAIL_FROM,NML_ADSP_CUSTOM_MED autolearn=no autolearn_force=no version=3.4.1 X-Spam-Checker-Version: SpamAssassin 3.4.1 (2015-04-28) on tom.home X-BeenThere: svn-src-head@freebsd.org X-Mailman-Version: 2.1.27 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: Fri, 13 Jul 2018 20:39:02 -0000 On Fri, Jul 13, 2018 at 07:42:59PM +0000, Mark Johnston wrote: > Author: markj > Date: Fri Jul 13 19:42:59 2018 > New Revision: 336257 > URL: https://svnweb.freebsd.org/changeset/base/336257 > > Log: > Define the MSR used to fetch the current microcode patch level on AMD. > > It is defined in the AMD family 17h register reference. > > MFC after: 3 days > Sponsored by: The FreeBSD Foundation > > Modified: > head/sys/x86/include/specialreg.h > > Modified: head/sys/x86/include/specialreg.h > ============================================================================== > --- head/sys/x86/include/specialreg.h Fri Jul 13 18:58:37 2018 (r336256) > +++ head/sys/x86/include/specialreg.h Fri Jul 13 19:42:59 2018 (r336257) > @@ -973,6 +973,7 @@ > #define AMD_WT_ALLOC_FRE 0x10000 /* fixed (A0000-FFFFF) range enable */ > > /* AMD64 MSR's */ > +#define MSR_PATCH_LEVEL 0x0000008b /* microcode revision number */ This register is called MSR_BIOS_SIGN. It is defined for Intel as well. > #define MSR_EFER 0xc0000080 /* extended features */ > #define MSR_STAR 0xc0000081 /* legacy mode SYSCALL target/cs/ss */ > #define MSR_LSTAR 0xc0000082 /* long mode SYSCALL target rip */