Message ID | 20240423162144.1780159-3-michael.roth@amd.com (mailing list archive) |
---|---|
State | Not Applicable |
Delegated to: | Herbert Xu |
Headers | show
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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 CH1PEPF0000AD7D.mail.protection.outlook.com (10.167.244.86) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.20.7452.22 via Frontend Transport; Tue, 23 Apr 2024 16:24:38 +0000 Received: from localhost (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 15.1.2507.35; Tue, 23 Apr 2024 11:24:31 -0500 From: Michael Roth <michael.roth@amd.com> To: <kvm@vger.kernel.org> CC: <linux-coco@lists.linux.dev>, <linux-mm@kvack.org>, <linux-crypto@vger.kernel.org>, <x86@kernel.org>, <linux-kernel@vger.kernel.org>, <tglx@linutronix.de>, <mingo@redhat.com>, <jroedel@suse.de>, <thomas.lendacky@amd.com>, <hpa@zytor.com>, <ardb@kernel.org>, <pbonzini@redhat.com>, <seanjc@google.com>, <vkuznets@redhat.com>, <jmattson@google.com>, <luto@kernel.org>, <dave.hansen@linux.intel.com>, <slp@redhat.com>, <pgonda@google.com>, <peterz@infradead.org>, <srinivas.pandruvada@linux.intel.com>, <rientjes@google.com>, <dovmurik@linux.ibm.com>, <tobin@ibm.com>, <bp@alien8.de>, <vbabka@suse.cz>, <kirill@shutemov.name>, <ak@linux.intel.com>, <tony.luck@intel.com>, <sathyanarayanan.kuppuswamy@linux.intel.com>, <alpergun@google.com>, <jarkko@kernel.org>, <ashish.kalra@amd.com>, <nikunj.dadhania@amd.com>, <pankaj.gupta@amd.com>, <liam.merwick@oracle.com> Subject: [PATCH v14 25/22] [SQUASH] KVM: SEV: Add support to handle Page State Change VMGEXIT Date: Tue, 23 Apr 2024 11:21:40 -0500 Message-ID: <20240423162144.1780159-3-michael.roth@amd.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20240423162144.1780159-1-michael.roth@amd.com> References: <20240421180122.1650812-1-michael.roth@amd.com> <20240423162144.1780159-1-michael.roth@amd.com> Precedence: bulk X-Mailing-List: linux-crypto@vger.kernel.org List-Id: <linux-crypto.vger.kernel.org> List-Subscribe: <mailto:linux-crypto+subscribe@vger.kernel.org> List-Unsubscribe: <mailto:linux-crypto+unsubscribe@vger.kernel.org> 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: CH1PEPF0000AD7D:EE_|SN7PR12MB6837:EE_ X-MS-Office365-Filtering-Correlation-Id: 5cb5a873-f16f-4084-e72e-08dc63b1df23 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; 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Add AMD Secure Nested Paging (SEV-SNP) Hypervisor Support
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expand
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diff --git a/arch/x86/kvm/svm/sev.c b/arch/x86/kvm/svm/sev.c index 0d8fbd5e25fe..c00081248ffe 100644 --- a/arch/x86/kvm/svm/sev.c +++ b/arch/x86/kvm/svm/sev.c @@ -3289,7 +3289,11 @@ static int sev_es_validate_vmgexit(struct vcpu_svm *svm) case SVM_VMGEXIT_AP_JUMP_TABLE: case SVM_VMGEXIT_UNSUPPORTED_EVENT: case SVM_VMGEXIT_HV_FEATURES: + break; case SVM_VMGEXIT_PSC: + if (!sev_snp_guest(vcpu->kvm)) + goto vmgexit_err; + break; case SVM_VMGEXIT_TERM_REQUEST: case SVM_VMGEXIT_GUEST_REQUEST: case SVM_VMGEXIT_EXT_GUEST_REQUEST:
Report an error to guest if non-SNP attempts to issue GHCB-based Page State Change. Signed-off-by: Michael Roth <michael.roth@amd.com> --- arch/x86/kvm/svm/sev.c | 4 ++++ 1 file changed, 4 insertions(+)