From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-10.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 33E24C433E0 for ; Wed, 1 Jul 2020 08:05:45 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 0192720775 for ; Wed, 1 Jul 2020 08:05:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728800AbgGAIFl (ORCPT ); Wed, 1 Jul 2020 04:05:41 -0400 Received: from mga14.intel.com ([192.55.52.115]:2452 "EHLO mga14.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728624AbgGAIEf (ORCPT ); Wed, 1 Jul 2020 04:04:35 -0400 IronPort-SDR: 0MGT5X/ti1ZumtLNeXNg1u+1aOCtRAxAML1JZ2zf3Jp3kpVEi6VVFdzTDWEBONeHtetCEaxUNv zkw7tsP+wx9Q== X-IronPort-AV: E=McAfee;i="6000,8403,9668"; a="145581967" X-IronPort-AV: E=Sophos;i="5.75,299,1589266800"; d="scan'208";a="145581967" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga005.jf.intel.com ([10.7.209.41]) by fmsmga103.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 01 Jul 2020 01:04:34 -0700 IronPort-SDR: NzHo0OsUtr3zWdFDSv5PoarSpUL/OePkL+T+sYHxbw1DanwxECqECpEudzIZtggQGdOAZGj5mO egF4Bk6/Cy9w== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.75,299,1589266800"; d="scan'208";a="455010360" Received: from unknown (HELO local-michael-cet-test.sh.intel.com) ([10.239.159.128]) by orsmga005.jf.intel.com with ESMTP; 01 Jul 2020 01:04:32 -0700 From: Yang Weijiang To: kvm@vger.kernel.org, linux-kernel@vger.kernel.org, pbonzini@redhat.com, sean.j.christopherson@intel.com, jmattson@google.com Cc: yu.c.zhang@linux.intel.com, Yang Weijiang Subject: [PATCH v13 10/11] KVM: x86: Add #CP support in guest exception dispatch Date: Wed, 1 Jul 2020 16:04:10 +0800 Message-Id: <20200701080411.5802-11-weijiang.yang@intel.com> X-Mailer: git-send-email 2.17.2 In-Reply-To: <20200701080411.5802-1-weijiang.yang@intel.com> References: <20200701080411.5802-1-weijiang.yang@intel.com> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org CPU defined #CP(21) to handle CET induced exception, it's accompanied with several error codes corresponding to different CET violation cases, see SDM for detailed description. The exception is classified as a contibutory exception w.r.t #DF. Signed-off-by: Yang Weijiang --- arch/x86/include/uapi/asm/kvm.h | 1 + arch/x86/kvm/x86.c | 1 + arch/x86/kvm/x86.h | 2 +- 3 files changed, 3 insertions(+), 1 deletion(-) diff --git a/arch/x86/include/uapi/asm/kvm.h b/arch/x86/include/uapi/asm/kvm.h index 3f3f780c8c65..78e5c4266270 100644 --- a/arch/x86/include/uapi/asm/kvm.h +++ b/arch/x86/include/uapi/asm/kvm.h @@ -31,6 +31,7 @@ #define MC_VECTOR 18 #define XM_VECTOR 19 #define VE_VECTOR 20 +#define CP_VECTOR 21 /* Select x86 specific features in */ #define __KVM_HAVE_PIT diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 9c16ce65fe74..94ca5b56d233 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -407,6 +407,7 @@ static int exception_class(int vector) case NP_VECTOR: case SS_VECTOR: case GP_VECTOR: + case CP_VECTOR: return EXCPT_CONTRIBUTORY; default: break; diff --git a/arch/x86/kvm/x86.h b/arch/x86/kvm/x86.h index b968acc0516f..7374e77c91d8 100644 --- a/arch/x86/kvm/x86.h +++ b/arch/x86/kvm/x86.h @@ -115,7 +115,7 @@ static inline bool x86_exception_has_error_code(unsigned int vector) { static u32 exception_has_error_code = BIT(DF_VECTOR) | BIT(TS_VECTOR) | BIT(NP_VECTOR) | BIT(SS_VECTOR) | BIT(GP_VECTOR) | - BIT(PF_VECTOR) | BIT(AC_VECTOR); + BIT(PF_VECTOR) | BIT(AC_VECTOR) | BIT(CP_VECTOR); return (1U << vector) & exception_has_error_code; } -- 2.17.2