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Tsirkin" , Paolo Bonzini , =?UTF-8?q?=5C=22Radim=20Kr=C4=8Dm=C3=A1=C5=99=5C=22?= , Tom Lendacky , Brijesh Singh Subject: [RFC Part2 PATCH v3 11/26] KVM: X86: Extend struct kvm_arch to include SEV information Date: Mon, 24 Jul 2017 15:02:48 -0500 Message-Id: <20170724200303.12197-12-brijesh.singh@amd.com> X-Mailer: git-send-email 2.9.4 In-Reply-To: <20170724200303.12197-1-brijesh.singh@amd.com> References: <20170724200303.12197-1-brijesh.singh@amd.com> MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [165.204.78.1] X-ClientProxiedBy: DM3PR12CA0049.namprd12.prod.outlook.com (10.161.151.17) To BY2PR12MB0145.namprd12.prod.outlook.com (10.162.82.18) X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 4d7fe150-9ede-4270-a733-08d4d2cf10f8 X-MS-Office365-Filtering-HT: Tenant X-Microsoft-Antispam: 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1;BY2PR12MB0145;20:2MSpEZJq1ZVOksX5HxH7Qw7h3m5D6UjyZPx7w4RrZAscGG8Hs+RdjXsTWS2YR/3ugSf6mYfVYoumF9bF7lV0zoTreo5Wxpn9uJs91lZtTUJicmbBaS1/BEuNLn6Rg9HUSXpgE9SkQeAweX8H6Lqi4jCWHOP4XPr4Wlde/7OluV2ySCPx9SmvV2My7cUTOWm6B1bqd+7VZszGl6LvsEBSTjL4F1owfL9vMUGgVMvgsywgBXBOUaPIVLgBF5SRkXrz X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 24 Jul 2017 20:03:34.1189 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-Transport-CrossTenantHeadersStamped: BY2PR12MB0145 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The patch adds a new member (sev_info) in 'struct kvm_arch', and setter/getter functions for the sev_info field. Signed-off-by: Brijesh Singh --- arch/x86/include/asm/kvm_host.h | 9 +++++++++ arch/x86/kvm/svm.c | 45 +++++++++++++++++++++++++++++++++++++++++ 2 files changed, 54 insertions(+) diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h index 4295f82..150177e 100644 --- a/arch/x86/include/asm/kvm_host.h +++ b/arch/x86/include/asm/kvm_host.h @@ -742,6 +742,13 @@ enum kvm_irqchip_mode { KVM_IRQCHIP_SPLIT, /* created with KVM_CAP_SPLIT_IRQCHIP */ }; +struct kvm_sev_info { + bool active; /* SEV enabled guest */ + unsigned int handle; /* firmware handle */ + unsigned int asid; /* asid for this guest */ + int sev_fd; /* SEV device fd */ +}; + struct kvm_arch { unsigned int n_used_mmu_pages; unsigned int n_requested_mmu_pages; @@ -829,6 +836,8 @@ struct kvm_arch { bool x2apic_format; bool x2apic_broadcast_quirk_disabled; + + struct kvm_sev_info sev_info; }; struct kvm_vm_stat { diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c index 256c9df..2a5a03a 100644 --- a/arch/x86/kvm/svm.c +++ b/arch/x86/kvm/svm.c @@ -322,6 +322,51 @@ enum { /* Secure Encrypted Virtualization */ static unsigned int max_sev_asid; +static inline struct kvm_sev_info *to_sev_info(struct kvm *kvm) +{ + return &kvm->arch.sev_info; +} + +static inline void sev_set_active(struct kvm *kvm) +{ + to_sev_info(kvm)->active = true; +} + +static inline unsigned int sev_get_handle(struct kvm *kvm) +{ + return to_sev_info(kvm)->handle; +} + +static inline bool sev_guest(struct kvm *kvm) +{ + return to_sev_info(kvm)->active; +} + +static inline int sev_get_asid(struct kvm *kvm) +{ + return to_sev_info(kvm)->asid; +} + +static inline int sev_get_fd(struct kvm *kvm) +{ + return to_sev_info(kvm)->sev_fd; +} + +static inline void sev_set_asid(struct kvm *kvm, int asid) +{ + to_sev_info(kvm)->asid = asid; +} + +static inline void sev_set_handle(struct kvm *kvm, unsigned int handle) +{ + to_sev_info(kvm)->handle = handle; +} + +static inline void sev_set_fd(struct kvm *kvm, int fd) +{ + to_sev_info(kvm)->sev_fd = fd; +} + static inline void mark_all_dirty(struct vmcb *vmcb) { vmcb->control.clean = 0; -- 2.9.4