diff options
| author | Tom Lendacky <thomas.lendacky@amd.com> | 2020-12-10 11:09:38 -0600 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2020-12-14 11:09:31 -0500 |
| commit | 916391a2d1dc225bfb68624352b1495ec529444e (patch) | |
| tree | cecf70ac109cf495667ff6b6d7b7789d975efa08 /arch/x86/kvm/svm/svm.h | |
| parent | 9d4747d02376aeb8de38afa25430de79129c5799 (diff) | |
KVM: SVM: Add support for SEV-ES capability in KVM
Add support to KVM for determining if a system is capable of supporting
SEV-ES as well as determining if a guest is an SEV-ES guest.
Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Message-Id: <e66792323982c822350e40c7a1cf67ea2978a70b.1607620209.git.thomas.lendacky@amd.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86/kvm/svm/svm.h')
| -rw-r--r-- | arch/x86/kvm/svm/svm.h | 39 |
1 files changed, 27 insertions, 12 deletions
diff --git a/arch/x86/kvm/svm/svm.h b/arch/x86/kvm/svm/svm.h index fdff76eb6ceb..ef0f0dfabc69 100644 --- a/arch/x86/kvm/svm/svm.h +++ b/arch/x86/kvm/svm/svm.h @@ -61,6 +61,7 @@ enum { struct kvm_sev_info { bool active; /* SEV enabled guest */ + bool es_active; /* SEV-ES enabled guest */ unsigned int asid; /* ASID used for this guest */ unsigned int handle; /* SEV firmware handle */ int fd; /* SEV device fd */ @@ -194,6 +195,28 @@ static inline struct kvm_svm *to_kvm_svm(struct kvm *kvm) return container_of(kvm, struct kvm_svm, kvm); } +static inline bool sev_guest(struct kvm *kvm) +{ +#ifdef CONFIG_KVM_AMD_SEV + struct kvm_sev_info *sev = &to_kvm_svm(kvm)->sev_info; + + return sev->active; +#else + return false; +#endif +} + +static inline bool sev_es_guest(struct kvm *kvm) +{ +#ifdef CONFIG_KVM_AMD_SEV + struct kvm_sev_info *sev = &to_kvm_svm(kvm)->sev_info; + + return sev_guest(kvm) && sev->es_active; +#else + return false; +#endif +} + static inline void vmcb_mark_all_dirty(struct vmcb *vmcb) { vmcb->control.clean = 0; @@ -352,6 +375,9 @@ static inline bool gif_set(struct vcpu_svm *svm) #define MSR_CR3_LONG_MBZ_MASK 0xfff0000000000000U #define MSR_INVALID 0xffffffffU +extern int sev; +extern int sev_es; + u32 svm_msrpm_offset(u32 msr); u32 *svm_vcpu_alloc_msrpm(void); void svm_vcpu_init_msrpm(struct kvm_vcpu *vcpu, u32 *msrpm); @@ -473,17 +499,6 @@ void svm_vcpu_unblocking(struct kvm_vcpu *vcpu); extern unsigned int max_sev_asid; -static inline bool sev_guest(struct kvm *kvm) -{ -#ifdef CONFIG_KVM_AMD_SEV - struct kvm_sev_info *sev = &to_kvm_svm(kvm)->sev_info; - - return sev->active; -#else - return false; -#endif -} - static inline bool svm_sev_enabled(void) { return IS_ENABLED(CONFIG_KVM_AMD_SEV) ? max_sev_asid : 0; @@ -496,7 +511,7 @@ int svm_register_enc_region(struct kvm *kvm, int svm_unregister_enc_region(struct kvm *kvm, struct kvm_enc_region *range); void pre_sev_run(struct vcpu_svm *svm, int cpu); -int __init sev_hardware_setup(void); +void __init sev_hardware_setup(void); void sev_hardware_teardown(void); #endif |