Message ID | 20231016132819.1002933-44-michael.roth@amd.com |
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State | New |
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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 SN1PEPF0002529F.mail.protection.outlook.com (10.167.242.6) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.20.6838.22 via Frontend Transport; Mon, 16 Oct 2023 13:45:12 +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 15.1.2507.27; Mon, 16 Oct 2023 08:45:07 -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>, <marcorr@google.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>, <zhi.a.wang@intel.com>, Brijesh Singh <brijesh.singh@amd.com> Subject: [PATCH v10 43/50] KVM: SVM: Add module parameter to enable the SEV-SNP Date: Mon, 16 Oct 2023 08:28:12 -0500 Message-ID: <20231016132819.1002933-44-michael.roth@amd.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20231016132819.1002933-1-michael.roth@amd.com> References: <20231016132819.1002933-1-michael.roth@amd.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain 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: SN1PEPF0002529F:EE_|PH0PR12MB5632:EE_ X-MS-Office365-Filtering-Correlation-Id: 00a42e22-6fd2-430c-3be3-08dbce4e1f34 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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Commit Message
Michael Roth
Oct. 16, 2023, 1:28 p.m. UTC
From: Brijesh Singh <brijesh.singh@amd.com> Add a module parameter than can be used to enable or disable the SEV-SNP feature. Now that KVM contains the support for the SNP set the GHCB hypervisor feature flag to indicate that SNP is supported. Signed-off-by: Brijesh Singh <brijesh.singh@amd.com> Signed-off-by: Ashish Kalra <ashish.kalra@amd.com> --- arch/x86/kvm/svm/sev.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/arch/x86/kvm/svm/sev.c b/arch/x86/kvm/svm/sev.c index f027def3a79e..efe879524b6c 100644 --- a/arch/x86/kvm/svm/sev.c +++ b/arch/x86/kvm/svm/sev.c @@ -62,7 +62,8 @@ static bool sev_es_debug_swap_enabled = true; module_param_named(debug_swap, sev_es_debug_swap_enabled, bool, 0444); /* enable/disable SEV-SNP support */ -static bool sev_snp_enabled; +static bool sev_snp_enabled = true; +module_param_named(sev_snp, sev_snp_enabled, bool, 0444); #else #define sev_enabled false #define sev_es_enabled false