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Thu, 27 Oct 2022 03:43:07 -0500 From: Santosh Shukla To: , CC: , , , , , , , Subject: [PATCHv5 7/8] KVM: nSVM: emulate VMEXIT_INVALID case for nested VNMI Date: Thu, 27 Oct 2022 14:08:30 +0530 Message-ID: <20221027083831.2985-8-santosh.shukla@amd.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20221027083831.2985-1-santosh.shukla@amd.com> References: <20221027083831.2985-1-santosh.shukla@amd.com> MIME-Version: 1.0 X-Originating-IP: [10.180.168.240] X-ClientProxiedBy: SATLEXMB03.amd.com (10.181.40.144) To SATLEXMB04.amd.com (10.181.40.145) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: DM6NAM11FT080:EE_|SA1PR12MB7149:EE_ X-MS-Office365-Filtering-Correlation-Id: 91e018ba-c8c6-4694-779b-08dab7f7481b X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:165.204.84.17;CTRY:US;LANG:en;SCL:1;SRV:;IPV:CAL;SFV:NSPM;H:SATLEXMB04.amd.com;PTR:InfoDomainNonexistent;CAT:NONE;SFS:(13230022)(4636009)(376002)(346002)(396003)(39860400002)(136003)(451199015)(46966006)(40470700004)(36840700001)(7696005)(2616005)(186003)(36756003)(1076003)(336012)(36860700001)(478600001)(426003)(356005)(82740400003)(6666004)(83380400001)(81166007)(16526019)(70206006)(40460700003)(47076005)(40480700001)(316002)(8936002)(110136005)(4326008)(54906003)(26005)(82310400005)(5660300002)(41300700001)(4744005)(70586007)(2906002)(8676002)(44832011)(86362001)(36900700001);DIR:OUT;SFP:1101; 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In order to emulate above (VMEXIT(#INVALID)) scenario for nested environment, extending check for V_NMI_ENABLE, NMI_INTERCEPT bit in func __nested_vmcb_check_controls. Signed-off-by: Santosh Shukla --- arch/x86/kvm/svm/nested.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/arch/x86/kvm/svm/nested.c b/arch/x86/kvm/svm/nested.c index d1c22c89427e..e94ec6dee661 100644 --- a/arch/x86/kvm/svm/nested.c +++ b/arch/x86/kvm/svm/nested.c @@ -274,6 +274,11 @@ static bool __nested_vmcb_check_controls(struct kvm_vcpu *vcpu, if (CC(!nested_svm_check_tlb_ctl(vcpu, control->tlb_ctl))) return false; + if (CC((control->int_ctl & V_NMI_ENABLE) && + !vmcb12_is_intercept(control, INTERCEPT_NMI))) { + return false; + } + return true; }