From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from NAM10-BN7-obe.outbound.protection.outlook.com (mail-bn7nam10on2074.outbound.protection.outlook.com [40.107.92.74]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 1071A2EA722; Fri, 27 Jun 2025 16:26:42 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=fail smtp.client-ip=40.107.92.74 ARC-Seal:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1751041606; cv=fail; b=IRG8ZSTwhhkGtDSvMbLJRoQLAJZpEyBNb08PgsdlYtIao3lbfJj8uDw3LMMRNCECw8DiyR4Bsr9QoKRhZGtk/EwIjDEOUDRi/qU8NeIA7nYbhH25oAJAa4PTzNVwhN5TfZmHwmgb9E96SXT2Hcw6aY7p10KKSzsHfcfedpnum8M= ARC-Message-Signature:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1751041606; c=relaxed/simple; bh=IYlNQQGhT8rP7MwMCoFhB5L8u1Cwkego76r5TnxXcd8=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=qzclnMwdUhZVvmajuqEpr6+yPmcCgcD8Szp27bsdQFad4bIRf2cijNZxqgFZz+b3eEBaJm1jNUCq2o3OB+yRuzX1phz1jBrYPJOOjD0YlYeI7UmJhZ5HjVFOCHhyn2Y32SjF83Egpep6WVuP8Xf51v8fZj0ITd5LQPvFCbFc+VE= ARC-Authentication-Results:i=2; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=amd.com; spf=fail smtp.mailfrom=amd.com; dkim=pass (1024-bit key) header.d=amd.com header.i=@amd.com header.b=BaymXTxx; arc=fail smtp.client-ip=40.107.92.74 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=amd.com Authentication-Results: smtp.subspace.kernel.org; spf=fail smtp.mailfrom=amd.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=amd.com header.i=@amd.com header.b="BaymXTxx" ARC-Seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=i/khiIlK8Svm0BJ2Jrfk9rFW1W25oN5INTdEx3ry9UwRPKEDtA+EIrvC7Llfcn+GjBrPRi8Mod++5/sRlRgm3FEnr1DPyYOl3LA+fZQfo9xdevZbkSTlkHZWQnZktI+f6qhRIJZ1CnFMCiT5u4OEMr+81pwDgShPOQ8Wz9QkPmFAi/A+FBAKATdyS+5paRaOeEqAUW7Q+8IC+bcoJeg/tEwFjQkdKYX+FwGhiaTdBHHhmG7txVIFngnGRBU0YX6DjApExhaxxVQrclK2/f+8ImyfduEPMv4u5KZPtL6X6EIwZe0PdaAFZUZxuy/JRllKuyNl36WVh9ber9croSoOqg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector10001; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=EWJAkGDL1Z1xZXD0s3bSWebnfP7TWGA6q3DK5XhqxrQ=; b=q5EBa8WkcDxdJVlaSve6gmCMDhmLEoaT2VdoTmpoQs32b14EQbEVaTzsQg3OtAwnZKCg837VG0QEkFJdjqmVvOAo4W85kLPaNjHfkRS3/YVEBGwSmEYHYcwpqfq/sBE2GGilwwgBQ1ms+CGGJaqdwWiKwEIOKU6u/AhIDFCT+QrisroCawv9KryC1qeajHOMFdq1GsZH+x+lagDx3LRD8/Yi5jyvkoTt846jA2W5Mi9nUIkV1XIfg0qRSFOWwcM2evGDRBDY1tOkffp6oAxi9U0bnxoENz8nWBdkYukqQ+22RBy3bYXJxE6HsdC4qmpY4OQNNij+zFEiZGJM0LsNFQ== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass (sender ip is 165.204.84.17) smtp.rcpttodomain=vger.kernel.org smtp.mailfrom=amd.com; dmarc=pass (p=quarantine sp=quarantine pct=100) action=none header.from=amd.com; dkim=none (message not signed); arc=none (0) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amd.com; s=selector1; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=EWJAkGDL1Z1xZXD0s3bSWebnfP7TWGA6q3DK5XhqxrQ=; b=BaymXTxxVH0DZxlPJIN5ld4Dh9yhjYNvxuZXP6pN7M3ccyzQYRCiNaIXCi8fu6R0k0qmIyxZWZZXss4EJRSQz4uqApO2dn+PRwE3CPqRs1sRSensnf8dMyPCTjax/hAaDXFYUk98AASQN4WkEcAYTX+AxvMgqMsZe0DGxIG1N5I= Received: from PH5P222CA0009.NAMP222.PROD.OUTLOOK.COM (2603:10b6:510:34b::14) by IA0PR12MB8745.namprd12.prod.outlook.com (2603:10b6:208:48d::11) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.8857.31; Fri, 27 Jun 2025 16:26:40 +0000 Received: from SN1PEPF000397B0.namprd05.prod.outlook.com (2603:10b6:510:34b:cafe::9c) by PH5P222CA0009.outlook.office365.com (2603:10b6:510:34b::14) with Microsoft SMTP Server (version=TLS1_3, cipher=TLS_AES_256_GCM_SHA384) id 15.20.8880.23 via Frontend Transport; Fri, 27 Jun 2025 16:26:40 +0000 X-MS-Exchange-Authentication-Results: spf=pass (sender IP is 165.204.84.17) smtp.mailfrom=amd.com; dkim=none (message not signed) header.d=none;dmarc=pass action=none header.from=amd.com; Received-SPF: Pass (protection.outlook.com: domain of amd.com designates 165.204.84.17 as permitted sender) receiver=protection.outlook.com; client-ip=165.204.84.17; helo=SATLEXMB04.amd.com; pr=C Received: from SATLEXMB04.amd.com (165.204.84.17) by SN1PEPF000397B0.mail.protection.outlook.com (10.167.248.54) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.20.8880.14 via Frontend Transport; Fri, 27 Jun 2025 16:26:39 +0000 Received: from brahmaputra.amd.com (10.180.168.240) by SATLEXMB04.amd.com (10.181.40.145) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.39; Fri, 27 Jun 2025 11:26:35 -0500 From: Manali Shukla To: , , CC: , , , , , , , , , , Subject: [PATCH v1 06/11] KVM: x86/cpuid: Add a KVM-only leaf for IBS capabilities Date: Fri, 27 Jun 2025 16:25:34 +0000 Message-ID: <20250627162550.14197-7-manali.shukla@amd.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20250627162550.14197-1-manali.shukla@amd.com> References: <20250627162550.14197-1-manali.shukla@amd.com> Precedence: bulk X-Mailing-List: linux-perf-users@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-ClientProxiedBy: SATLEXMB04.amd.com (10.181.40.145) To SATLEXMB04.amd.com (10.181.40.145) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: SN1PEPF000397B0:EE_|IA0PR12MB8745:EE_ X-MS-Office365-Filtering-Correlation-Id: 4c31b435-cb1d-47a3-2d7f-08ddb5976541 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|376014|82310400026|1800799024|36860700013; X-Microsoft-Antispam-Message-Info: =?us-ascii?Q?xtkDo0l01PagVgmZab8XbO3kuak3WTnzqsqsAtxFz0nHzfLIjeHI/s31hdiV?= =?us-ascii?Q?jbOAVS/LMpnb7o0QgDut7OqKwkp2oKVSJQnvg6Ar7FOUFP/PhDpuWoWU1NLC?= =?us-ascii?Q?Pik6QIdllf/r0NS2Lv3KKk+FdrzpKnJO5nk1zAfy31XSGoxG3S+uvEPZNouz?= =?us-ascii?Q?2gngIdnvr01iorTYALPTeA+kgx9BPNdCuKuY5WOaOjzq/l2h4wk/o+vaqYKX?= =?us-ascii?Q?6kWu1UBiuwbssmytaXy/L7CXbwWIl7/IRjgAJ3jTnGdVSRgVz76+yefLbcp/?= =?us-ascii?Q?GSX/vmk9m2by0PKJCngLu3f9/mpZ/hHXBrpfAGLx8bPet9nDoVVm22LKNKNf?= =?us-ascii?Q?RSZlzmW2kBmrKF86TqL/Wtp557vCzC2bHOwbkkwViAqUP6umjJwdLQMLxn3J?= =?us-ascii?Q?fhk7nrcOwRGUoVvk1aFSND6x4yd8/bSXqTY/hNRYCoHb4v1Q4kI9Uj6G4n5m?= =?us-ascii?Q?hHS8/iWd1qHZPG4/Z37cTKY+rxRGRWh9TVWoTUBW06gWXMkFWtgVGuzxrkif?= =?us-ascii?Q?aEa/jmvD5S2zjo6aRW08bbwwZjKv3N3KtbNFLSoYgw784yGG6fqc9oNtr+9K?= =?us-ascii?Q?2/AQEfB/TL5RDZazBrUw69lwnc8D1tj2YhPkMOeVugDgMVddGqRYPSX7/PYG?= =?us-ascii?Q?WQUyU14caYQmGl+A2Y+rHFwwyjg8tnRa3pRwyOkLVxUgrJSNl4u1IQ6i7ni2?= =?us-ascii?Q?FZ9m4R80HUlO+Nh/oMYna50S/Iow3LLUx7DRTniffsKX0b9IxWuZPB/d+1vB?= =?us-ascii?Q?5swNl4TtFWq5hAfhWjzFd0b11/AVYqGPFupBLpR2x2ca01hvOqeZx4e7SLOH?= =?us-ascii?Q?uPEqZ8gKxnUGkofkisWhsc/RyN7rNkzukL+G7lAh5yu5o2nM+B+1nFI2oGay?= =?us-ascii?Q?mMqNYK7gLlwmpnzxOYwEMz6kMKID7mUrCiVP8fQa3R8R4QjLPeta2z10ZGG/?= =?us-ascii?Q?3bmrGUe+jwPIX80GBiBRilfdOBkP72na78eLRCdlagaws1vb/4xuLwTJWefE?= =?us-ascii?Q?psN20gRjQJzjgRTyxMuNOwrZfJ9ocILlxNJzllZUvlb8L8TCS6GkUoZcL7si?= =?us-ascii?Q?s3bBaL2+FRKBZkfzfg6bRhkYU46/cI/fDWAWgHnEZtHqeMLImvtbULHnoxcf?= =?us-ascii?Q?56y81jer4zMAnCnKiUqnkZkpP3Tvy8YVu43z0tFIWaQGacvGnoe8BSfZvOwt?= =?us-ascii?Q?MvOkLfAjKFsEbVVWyMqcNWCs3cguUi0mSbk7IsS/fYgc1uy5PNRw4o1HW+yJ?= =?us-ascii?Q?iRLAbbgnXPQK5yM/xo7fWn3l8tWAhdJ6tgi+wnGYxvKCdU02DdhzFBYgH23A?= =?us-ascii?Q?XWpRH6cDRdCKjk1uYmu/P1pDjSuzijmsG8amgqrasc+GKwm2sa++1M73WdMO?= =?us-ascii?Q?JNClrRV7wFxioghof19he6eJOIWHg6zSIF8OSMFgLkkOYeW4zk+rjwZR3rxL?= =?us-ascii?Q?gbd/1ZTpTLCXedHPNrrLpPERrM+3iW2MHQIJ4349kLTR5ycCNkpGqU8EIFrc?= =?us-ascii?Q?ApQCZPGklGR1OI+IHhpwdWdnioSQ8yNBjH1/?= 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:(13230040)(376014)(82310400026)(1800799024)(36860700013);DIR:OUT;SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 27 Jun 2025 16:26:39.9243 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 4c31b435-cb1d-47a3-2d7f-08ddb5976541 X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d;Ip=[165.204.84.17];Helo=[SATLEXMB04.amd.com] X-MS-Exchange-CrossTenant-AuthSource: SN1PEPF000397B0.namprd05.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: IA0PR12MB8745 Add a KVM-only leaf for AMD's Instruction Based Sampling capabilities. There are 12 capabilities which are added to KVM-only leaf, so that KVM can set these capabilities for the guest, when IBS feature bit is enabled on the guest. Signed-off-by: Manali Shukla --- arch/x86/include/asm/kvm_host.h | 1 + arch/x86/kvm/reverse_cpuid.h | 16 ++++++++++++++++ 2 files changed, 17 insertions(+) diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h index 732bac9403b1..8e3d96b6166b 100644 --- a/arch/x86/include/asm/kvm_host.h +++ b/arch/x86/include/asm/kvm_host.h @@ -770,6 +770,7 @@ enum kvm_only_cpuid_leafs { CPUID_12_EAX = NCAPINTS, CPUID_7_1_EDX, CPUID_8000_0007_EDX, + CPUID_8000_001B_EAX, CPUID_8000_0022_EAX, CPUID_7_2_EDX, CPUID_24_0_EBX, diff --git a/arch/x86/kvm/reverse_cpuid.h b/arch/x86/kvm/reverse_cpuid.h index fde0ae986003..7f685361faa9 100644 --- a/arch/x86/kvm/reverse_cpuid.h +++ b/arch/x86/kvm/reverse_cpuid.h @@ -52,6 +52,21 @@ /* CPUID level 0x80000022 (EAX) */ #define KVM_X86_FEATURE_PERFMON_V2 KVM_X86_FEATURE(CPUID_8000_0022_EAX, 0) +/* AMD defined Instruction-base Sampling capabilities. CPUID level 0x8000001B (EAX). */ +#define X86_FEATURE_IBS_AVAIL KVM_X86_FEATURE(CPUID_8000_001B_EAX, 0) +#define X86_FEATURE_IBS_FETCHSAM KVM_X86_FEATURE(CPUID_8000_001B_EAX, 1) +#define X86_FEATURE_IBS_OPSAM KVM_X86_FEATURE(CPUID_8000_001B_EAX, 2) +#define X86_FEATURE_IBS_RDWROPCNT KVM_X86_FEATURE(CPUID_8000_001B_EAX, 3) +#define X86_FEATURE_IBS_OPCNT KVM_X86_FEATURE(CPUID_8000_001B_EAX, 4) +#define X86_FEATURE_IBS_BRNTRGT KVM_X86_FEATURE(CPUID_8000_001B_EAX, 5) +#define X86_FEATURE_IBS_OPCNTEXT KVM_X86_FEATURE(CPUID_8000_001B_EAX, 6) +#define X86_FEATURE_IBS_RIPINVALIDCHK KVM_X86_FEATURE(CPUID_8000_001B_EAX, 7) +#define X86_FEATURE_IBS_OPBRNFUSE KVM_X86_FEATURE(CPUID_8000_001B_EAX, 8) +#define X86_FEATURE_IBS_FETCHCTLEXTD KVM_X86_FEATURE(CPUID_8000_001B_EAX, 9) +#define X86_FEATURE_IBS_ZEN4_EXT KVM_X86_FEATURE(CPUID_8000_001B_EAX, 11) +#define X86_FEATURE_IBS_LOADLATFIL KVM_X86_FEATURE(CPUID_8000_001B_EAX, 12) +#define X86_FEATURE_IBS_DTLBSTAT KVM_X86_FEATURE(CPUID_8000_001B_EAX, 19) + struct cpuid_reg { u32 function; u32 index; @@ -82,6 +97,7 @@ static const struct cpuid_reg reverse_cpuid[] = { [CPUID_8000_0022_EAX] = {0x80000022, 0, CPUID_EAX}, [CPUID_7_2_EDX] = { 7, 2, CPUID_EDX}, [CPUID_24_0_EBX] = { 0x24, 0, CPUID_EBX}, + [CPUID_8000_001B_EAX] = {0x8000001b, 0, CPUID_EAX}, }; /* -- 2.43.0