From owner-svn-src-stable-11@freebsd.org Thu May 30 16:42:58 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 D5B1A15A4218; Thu, 30 May 2019 16:42:58 +0000 (UTC) (envelope-from jhb@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 77FC793AD8; Thu, 30 May 2019 16:42:58 +0000 (UTC) (envelope-from jhb@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 51D751BCFF; Thu, 30 May 2019 16:42:58 +0000 (UTC) (envelope-from jhb@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id x4UGgwmF072902; Thu, 30 May 2019 16:42:58 GMT (envelope-from jhb@FreeBSD.org) Received: (from jhb@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id x4UGgwku072901; Thu, 30 May 2019 16:42:58 GMT (envelope-from jhb@FreeBSD.org) Message-Id: <201905301642.x4UGgwku072901@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: jhb set sender to jhb@FreeBSD.org using -f From: John Baldwin Date: Thu, 30 May 2019 16:42:58 +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: r348437 - stable/11/sys/amd64/vmm X-SVN-Group: stable-11 X-SVN-Commit-Author: jhb X-SVN-Commit-Paths: stable/11/sys/amd64/vmm X-SVN-Commit-Revision: 348437 X-SVN-Commit-Repository: base MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Rspamd-Queue-Id: 77FC793AD8 X-Spamd-Bar: -- Authentication-Results: mx1.freebsd.org X-Spamd-Result: default: False [-2.98 / 15.00]; local_wl_from(0.00)[FreeBSD.org]; NEURAL_HAM_MEDIUM(-1.00)[-0.999,0]; NEURAL_HAM_LONG(-1.00)[-1.000,0]; NEURAL_HAM_SHORT(-0.98)[-0.976,0]; ASN(0.00)[asn:11403, ipnet:2610:1c1:1::/48, country:US] 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: Thu, 30 May 2019 16:42:59 -0000 Author: jhb Date: Thu May 30 16:42:57 2019 New Revision: 348437 URL: https://svnweb.freebsd.org/changeset/base/348437 Log: MFC 347964: Expose the MD_CLEAR capability used by Intel MDS mitigations to guests. Approved by: re (gjb) Modified: stable/11/sys/amd64/vmm/x86.c Directory Properties: stable/11/ (props changed) Modified: stable/11/sys/amd64/vmm/x86.c ============================================================================== --- stable/11/sys/amd64/vmm/x86.c Thu May 30 16:40:21 2019 (r348436) +++ stable/11/sys/amd64/vmm/x86.c Thu May 30 16:42:57 2019 (r348437) @@ -359,7 +359,7 @@ x86_emulate_cpuid(struct vm *vm, int vcpu_id, CPUID_STDEXT_AVX512ER | CPUID_STDEXT_AVX512CD); regs[2] = 0; - regs[3] = 0; + regs[3] &= CPUID_STDEXT3_MD_CLEAR; /* Advertise INVPCID if it is enabled. */ error = vm_get_capability(vm, vcpu_id,