Message ID | c22d2c97411a5fac211eb54e98d05734b149a5fd.1581555616.git.ashish.kalra@amd.com (mailing list archive) |
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State | New, archived |
Headers | show
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Thu, 13 Feb 2020 01:17:23 +0000 From: Ashish Kalra <Ashish.Kalra@amd.com> To: pbonzini@redhat.com Cc: tglx@linutronix.de, mingo@redhat.com, hpa@zytor.com, rkrcmar@redhat.com, joro@8bytes.org, bp@suse.de, thomas.lendacky@amd.com, rientjes@google.com, x86@kernel.org, kvm@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 07/12] KVM: x86: Add AMD SEV specific Hypercall3 Date: Thu, 13 Feb 2020 01:17:13 +0000 Message-Id: <c22d2c97411a5fac211eb54e98d05734b149a5fd.1581555616.git.ashish.kalra@amd.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <cover.1581555616.git.ashish.kalra@amd.com> References: <cover.1581555616.git.ashish.kalra@amd.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-ClientProxiedBy: DM6PR11CA0064.namprd11.prod.outlook.com (2603:10b6:5:14c::41) To SN1PR12MB2528.namprd12.prod.outlook.com (2603:10b6:802:28::33) MIME-Version: 1.0 Received: from ashkalra_ubuntu_server.amd.com (165.204.77.1) by DM6PR11CA0064.namprd11.prod.outlook.com (2603:10b6:5:14c::41) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.2729.23 via Frontend Transport; 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SEV Live Migration Patchset.
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diff --git a/arch/x86/include/asm/kvm_para.h b/arch/x86/include/asm/kvm_para.h index 9b4df6eaa11a..6c09255633a4 100644 --- a/arch/x86/include/asm/kvm_para.h +++ b/arch/x86/include/asm/kvm_para.h @@ -84,6 +84,18 @@ static inline long kvm_hypercall4(unsigned int nr, unsigned long p1, return ret; } +static inline long kvm_sev_hypercall3(unsigned int nr, unsigned long p1, + unsigned long p2, unsigned long p3) +{ + long ret; + + asm volatile("vmmcall" + : "=a"(ret) + : "a"(nr), "b"(p1), "c"(p2), "d"(p3) + : "memory"); + return ret; +} + #ifdef CONFIG_KVM_GUEST bool kvm_para_available(void); unsigned int kvm_arch_para_features(void);