From owner-svn-src-stable-11@freebsd.org Fri Mar 22 14:49:23 2019 Return-Path: Delivered-To: svn-src-stable-11@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 D923E154835E; Fri, 22 Mar 2019 14:49:23 +0000 (UTC) (envelope-from kib@FreeBSD.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) server-signature RSA-PSS (4096 bits) client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 7BA0186551; Fri, 22 Mar 2019 14:49:23 +0000 (UTC) (envelope-from kib@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 4A5D721CDC; Fri, 22 Mar 2019 14:49:23 +0000 (UTC) (envelope-from kib@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id x2MEnNbs065834; Fri, 22 Mar 2019 14:49:23 GMT (envelope-from kib@FreeBSD.org) Received: (from kib@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id x2MEnMdl065832; Fri, 22 Mar 2019 14:49:22 GMT (envelope-from kib@FreeBSD.org) Message-Id: <201903221449.x2MEnMdl065832@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: kib set sender to kib@FreeBSD.org using -f From: Konstantin Belousov Date: Fri, 22 Mar 2019 14:49:22 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-11@freebsd.org Subject: svn commit: r345414 - in stable/11/sys: amd64/amd64 i386/i386 X-SVN-Group: stable-11 X-SVN-Commit-Author: kib X-SVN-Commit-Paths: in stable/11/sys: amd64/amd64 i386/i386 X-SVN-Commit-Revision: 345414 X-SVN-Commit-Repository: base MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Rspamd-Queue-Id: 7BA0186551 X-Spamd-Bar: -- Authentication-Results: mx1.freebsd.org X-Spamd-Result: default: False [-2.97 / 15.00]; local_wl_from(0.00)[FreeBSD.org]; NEURAL_HAM_MEDIUM(-1.00)[-0.999,0]; NEURAL_HAM_SHORT(-0.97)[-0.973,0]; ASN(0.00)[asn:11403, ipnet:2610:1c1:1::/48, country:US]; NEURAL_HAM_LONG(-1.00)[-1.000,0] X-BeenThere: svn-src-stable-11@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: SVN commit messages for only the 11-stable src tree List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 22 Mar 2019 14:49:24 -0000 Author: kib Date: Fri Mar 22 14:49:22 2019 New Revision: 345414 URL: https://svnweb.freebsd.org/changeset/base/345414 Log: MFC r345190: Provide deterministic (and somewhat useful) value for RDPID result, and for %ecx after RDTSCP. Modified: stable/11/sys/amd64/amd64/initcpu.c stable/11/sys/i386/i386/initcpu.c Directory Properties: stable/11/ (props changed) Modified: stable/11/sys/amd64/amd64/initcpu.c ============================================================================== --- stable/11/sys/amd64/amd64/initcpu.c Fri Mar 22 14:35:15 2019 (r345413) +++ stable/11/sys/amd64/amd64/initcpu.c Fri Mar 22 14:49:22 2019 (r345414) @@ -255,6 +255,10 @@ initializecpu(void) init_via(); break; } + + if ((amd_feature & AMDID_RDTSCP) != 0 || + (cpu_stdext_feature2 & CPUID_STDEXT2_RDPID) != 0) + wrmsr(MSR_TSC_AUX, PCPU_GET(cpuid)); } void Modified: stable/11/sys/i386/i386/initcpu.c ============================================================================== --- stable/11/sys/i386/i386/initcpu.c Fri Mar 22 14:35:15 2019 (r345413) +++ stable/11/sys/i386/i386/initcpu.c Fri Mar 22 14:49:22 2019 (r345414) @@ -34,6 +34,7 @@ __FBSDID("$FreeBSD$"); #include #include +#include #include #include @@ -768,6 +769,9 @@ initializecpu(void) elf32_nxstack = 1; } #endif + if ((amd_feature & AMDID_RDTSCP) != 0 || + (cpu_stdext_feature2 & CPUID_STDEXT2_RDPID) != 0) + wrmsr(MSR_TSC_AUX, PCPU_GET(cpuid)); } void