diff options
| author | Paolo Bonzini <pbonzini@redhat.com> | 2024-04-04 08:13:15 -0400 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2024-04-11 13:08:22 -0400 |
| commit | ac5c48027bacb1b5525120db6d013373e0520b50 (patch) | |
| tree | da7bb74cd6f47022976387b18bd79f5f42a57d81 /arch/x86/kvm/svm/svm.h | |
| parent | 546d714b0880f20572d21ece5b9544c0e37a7a49 (diff) | |
KVM: SEV: publish supported VMSA features
Compute the set of features to be stored in the VMSA when KVM is
initialized; move it from there into kvm_sev_info when SEV is initialized,
and then into the initial VMSA.
The new variable can then be used to return the set of supported features
to userspace, via the KVM_GET_DEVICE_ATTR ioctl.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Isaku Yamahata <isaku.yamahata@intel.com>
Message-ID: <20240404121327.3107131-6-pbonzini@redhat.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 | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/x86/kvm/svm/svm.h b/arch/x86/kvm/svm/svm.h index ec8ca7d92cf1..1c6601a9cbbf 100644 --- a/arch/x86/kvm/svm/svm.h +++ b/arch/x86/kvm/svm/svm.h @@ -692,6 +692,7 @@ void __init sev_set_cpu_caps(void); void __init sev_hardware_setup(void); void sev_hardware_unsetup(void); int sev_cpu_init(struct svm_cpu_data *sd); +int sev_dev_get_attr(u32 group, u64 attr, u64 *val); extern unsigned int max_sev_asid; #else static inline struct page *snp_safe_alloc_page(struct kvm_vcpu *vcpu) { @@ -704,6 +705,7 @@ static inline void __init sev_set_cpu_caps(void) {} static inline void __init sev_hardware_setup(void) {} static inline void sev_hardware_unsetup(void) {} static inline int sev_cpu_init(struct svm_cpu_data *sd) { return 0; } +static inline int sev_dev_get_attr(u32 group, u64 attr, u64 *val) { return -ENXIO; } #define max_sev_asid 0 #endif |