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Mon, 27 Feb 2023 02:43:54 -0600 From: Santosh Shukla To: , CC: , , , , , , , Subject: [PATCHv4 08/11] x86/cpu: Add CPUID feature bit for VNMI Date: Mon, 27 Feb 2023 14:10:13 +0530 Message-ID: <20230227084016.3368-9-santosh.shukla@amd.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230227084016.3368-1-santosh.shukla@amd.com> References: <20230227084016.3368-1-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: CO1NAM11FT033:EE_|PH8PR12MB8430:EE_ X-MS-Office365-Filtering-Correlation-Id: c0f226e7-fc0d-4ac6-a7e6-08db189ec4c3 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:(13230025)(4636009)(376002)(39860400002)(136003)(396003)(346002)(451199018)(36840700001)(46966006)(40470700004)(44832011)(36860700001)(82310400005)(426003)(8936002)(5660300002)(47076005)(82740400003)(2906002)(81166007)(336012)(2616005)(41300700001)(70586007)(70206006)(8676002)(356005)(186003)(16526019)(4326008)(6666004)(26005)(1076003)(36756003)(478600001)(7696005)(54906003)(110136005)(40480700001)(86362001)(316002)(40460700003)(36900700001);DIR:OUT;SFP:1101; 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VNMI achieves that by exposing 3 capability bits in VMCB intr_cntrl which helps with virtualizing NMI injection and NMI_Masking. The presence of this feature is indicated via the CPUID function 0x8000000A_EDX[25]. Reviewed-by: Maxim Levitsky Signed-off-by: Santosh Shukla Signed-off-by: Sean Christopherson --- arch/x86/include/asm/cpufeatures.h | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/x86/include/asm/cpufeatures.h b/arch/x86/include/asm/cpufeatures.h index cdb7e1492311..b3ae49f36008 100644 --- a/arch/x86/include/asm/cpufeatures.h +++ b/arch/x86/include/asm/cpufeatures.h @@ -365,6 +365,7 @@ #define X86_FEATURE_VGIF (15*32+16) /* Virtual GIF */ #define X86_FEATURE_X2AVIC (15*32+18) /* Virtual x2apic */ #define X86_FEATURE_V_SPEC_CTRL (15*32+20) /* Virtual SPEC_CTRL */ +#define X86_FEATURE_AMD_VNMI (15*32+25) /* Virtual NMI */ #define X86_FEATURE_SVME_ADDR_CHK (15*32+28) /* "" SVME addr check */ /* Intel-defined CPU features, CPUID level 0x00000007:0 (ECX), word 16 */