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Sampat" To: , , , CC: , , , , , , , , , , , , , , Subject: [PATCH v8 03/10] KVM: selftests: Add vmgexit helper Date: Wed, 5 Mar 2025 16:59:53 -0600 Message-ID: <20250305230000.231025-4-prsampat@amd.com> X-Mailer: git-send-email 2.48.1 In-Reply-To: <20250305230000.231025-1-prsampat@amd.com> References: <20250305230000.231025-1-prsampat@amd.com> Precedence: bulk X-Mailing-List: kvm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 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: MN1PEPF0000F0E4:EE_|IA1PR12MB7541:EE_ X-MS-Office365-Filtering-Correlation-Id: ce6d52c1-2bd1-40a9-0fdc-08dd5c399f58 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|82310400026|376014|7416014|36860700013|1800799024; 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:(13230040)(82310400026)(376014)(7416014)(36860700013)(1800799024);DIR:OUT;SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 05 Mar 2025 23:01:11.2405 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: ce6d52c1-2bd1-40a9-0fdc-08dd5c399f58 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: MN1PEPF0000F0E4.namprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: IA1PR12MB7541 Abstract rep vmmcall coded into the vmgexit helper for the sev library. No functional change intended. Signed-off-by: Pratik R. Sampat Reviewed-by: Pankaj Gupta --- tools/testing/selftests/kvm/include/x86/sev.h | 5 +++++ tools/testing/selftests/kvm/x86/sev_smoke_test.c | 2 +- 2 files changed, 6 insertions(+), 1 deletion(-) diff --git a/tools/testing/selftests/kvm/include/x86/sev.h b/tools/testing/selftests/kvm/include/x86/sev.h index 82c11c81a956..3003dc837fb7 100644 --- a/tools/testing/selftests/kvm/include/x86/sev.h +++ b/tools/testing/selftests/kvm/include/x86/sev.h @@ -71,6 +71,11 @@ kvm_static_assert(SEV_RET_SUCCESS == 0); void sev_vm_init(struct kvm_vm *vm); void sev_es_vm_init(struct kvm_vm *vm); +static inline void vmgexit(void) +{ + __asm__ __volatile__("rep; vmmcall"); +} + static inline void sev_register_encrypted_memory(struct kvm_vm *vm, struct userspace_mem_region *region) { diff --git a/tools/testing/selftests/kvm/x86/sev_smoke_test.c b/tools/testing/selftests/kvm/x86/sev_smoke_test.c index a1a688e75266..6812b94bf5b6 100644 --- a/tools/testing/selftests/kvm/x86/sev_smoke_test.c +++ b/tools/testing/selftests/kvm/x86/sev_smoke_test.c @@ -27,7 +27,7 @@ static void guest_sev_es_code(void) * force "termination" to signal "done" via the GHCB MSR protocol. */ wrmsr(MSR_AMD64_SEV_ES_GHCB, GHCB_MSR_TERM_REQ); - __asm__ __volatile__("rep; vmmcall"); + vmgexit(); } static void guest_sev_code(void)