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Sampat" To: CC: , , , , , , , , , Subject: [PATCH v4 3/8] KVM: selftests: Add VMGEXIT helper Date: Thu, 14 Nov 2024 17:40:59 -0600 Message-ID: <20241114234104.128532-4-pratikrajesh.sampat@amd.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20241114234104.128532-1-pratikrajesh.sampat@amd.com> References: <20241114234104.128532-1-pratikrajesh.sampat@amd.com> Precedence: bulk X-Mailing-List: linux-kselftest@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 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: CO1PEPF000044EF:EE_|DS7PR12MB6214:EE_ X-MS-Office365-Filtering-Correlation-Id: b38fcf4f-983d-4c50-d763-08dd0505e8cc X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|82310400026|376014|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)(36860700013)(1800799024);DIR:OUT;SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 14 Nov 2024 23:41:49.3473 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: b38fcf4f-983d-4c50-d763-08dd0505e8cc 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: CO1PEPF000044EF.namprd05.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DS7PR12MB6214 Abstract rep vmmcall coded into the VMGEXIT helper for the sev library. No functional change intended. Signed-off-by: Pratik R. Sampat --- tools/testing/selftests/kvm/include/x86_64/sev.h | 2 ++ tools/testing/selftests/kvm/x86_64/sev_smoke_test.c | 2 +- 2 files changed, 3 insertions(+), 1 deletion(-) diff --git a/tools/testing/selftests/kvm/include/x86_64/sev.h b/tools/testing/selftests/kvm/include/x86_64/sev.h index 82c11c81a956..e7df5d0987f6 100644 --- a/tools/testing/selftests/kvm/include/x86_64/sev.h +++ b/tools/testing/selftests/kvm/include/x86_64/sev.h @@ -27,6 +27,8 @@ enum sev_guest_state { #define GHCB_MSR_TERM_REQ 0x100 +#define VMGEXIT() { __asm__ __volatile__("rep; vmmcall"); } + void sev_vm_launch(struct kvm_vm *vm, uint32_t policy); void sev_vm_launch_measure(struct kvm_vm *vm, uint8_t *measurement); void sev_vm_launch_finish(struct kvm_vm *vm); diff --git a/tools/testing/selftests/kvm/x86_64/sev_smoke_test.c b/tools/testing/selftests/kvm/x86_64/sev_smoke_test.c index ae77698e6e97..97d9989c8011 100644 --- a/tools/testing/selftests/kvm/x86_64/sev_smoke_test.c +++ b/tools/testing/selftests/kvm/x86_64/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)