From nobody Wed Nov 5 13:10:56 2025 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) client-ip=208.118.235.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Authentication-Results: mx.zohomail.com; spf=pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=redhat.com Return-Path: Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) by mx.zohomail.com with SMTPS id 1534469784171174.8207511473563; Thu, 16 Aug 2018 18:36:24 -0700 (PDT) Received: from localhost ([::1]:58865 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fqTgc-00087i-MF for importer@patchew.org; Thu, 16 Aug 2018 21:36:22 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:48291) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fqTef-00056i-PQ for qemu-devel@nongnu.org; Thu, 16 Aug 2018 21:34:23 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1fqTed-00066O-2c for qemu-devel@nongnu.org; Thu, 16 Aug 2018 21:34:21 -0400 Received: from mx1.redhat.com ([209.132.183.28]:38966) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1fqTea-000645-Ai for qemu-devel@nongnu.org; Thu, 16 Aug 2018 21:34:18 -0400 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.phx2.redhat.com [10.5.11.15]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 83341811A7; Fri, 17 Aug 2018 01:34:15 +0000 (UTC) Received: from localhost (ovpn-116-57.gru2.redhat.com [10.97.116.57]) by smtp.corp.redhat.com (Postfix) with ESMTP id D47F05D6B4; Fri, 17 Aug 2018 01:34:12 +0000 (UTC) From: Eduardo Habkost To: Peter Maydell , qemu-devel@nongnu.org Date: Thu, 16 Aug 2018 22:33:54 -0300 Message-Id: <20180817013400.13353-3-ehabkost@redhat.com> In-Reply-To: <20180817013400.13353-1-ehabkost@redhat.com> References: <20180817013400.13353-1-ehabkost@redhat.com> X-Scanned-By: MIMEDefang 2.79 on 10.5.11.15 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.27]); Fri, 17 Aug 2018 01:34:15 +0000 (UTC) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 209.132.183.28 Subject: [Qemu-devel] [PULL 2/8] i386: Add new MSR indices for IA32_PRED_CMD and IA32_ARCH_CAPABILITIES X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Eduardo Habkost , "Michael S. Tsirkin" , Robert Hoo , Paolo Bonzini , Richard Henderson Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail: RDMRC_1 RSF_0 Z_629925259 SPT_0 Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" From: Robert Hoo IA32_PRED_CMD MSR gives software a way to issue commands that affect the st= ate of indirect branch predictors. Enumerated by CPUID.(EAX=3D7H,ECX=3D0):EDX[2= 6]. IA32_ARCH_CAPABILITIES MSR enumerates architectural features of RDCL_NO and IBRS_ALL. Enumerated by CPUID.(EAX=3D07H, ECX=3D0):EDX[29]. https://software.intel.com/sites/default/files/managed/c5/63/336996-Specula= tive-Execution-Side-Channel-Mitigations.pdf Signed-off-by: Robert Hoo Message-Id: <1530781798-183214-2-git-send-email-robert.hu@linux.intel.com> Signed-off-by: Eduardo Habkost --- target/i386/cpu.h | 2 ++ 1 file changed, 2 insertions(+) diff --git a/target/i386/cpu.h b/target/i386/cpu.h index c18863ec7a..b5c6686fe2 100644 --- a/target/i386/cpu.h +++ b/target/i386/cpu.h @@ -354,6 +354,8 @@ typedef enum X86Seg { #define MSR_TSC_ADJUST 0x0000003b #define MSR_IA32_SPEC_CTRL 0x48 #define MSR_VIRT_SSBD 0xc001011f +#define MSR_IA32_PRED_CMD 0x49 +#define MSR_IA32_ARCH_CAPABILITIES 0x10a #define MSR_IA32_TSCDEADLINE 0x6e0 =20 #define FEATURE_CONTROL_LOCKED (1<<0) --=20 2.18.0.rc1.1.g3f1ff2140