diff options
| author | Paolo Bonzini <[email protected]> | 2024-04-04 08:13:16 -0400 |
|---|---|---|
| committer | Paolo Bonzini <[email protected]> | 2024-04-11 13:08:23 -0400 |
| commit | 605bbdc12bc8839b97f8755d74fc3fd4bf206588 (patch) | |
| tree | 0bd106c2eb3e0eb293307cae084cc326957a0e4d /arch/x86/kvm/svm/svm.h | |
| parent | ac5c48027bacb1b5525120db6d013373e0520b50 (diff) | |
KVM: SEV: store VMSA features in kvm_sev_info
Right now, the set of features that are stored in the VMSA upon
initialization is fixed and depends on the module parameters for
kvm-amd.ko. However, the hypervisor cannot really change it at will
because the feature word has to match between the hypervisor and whatever
computes a measurement of the VMSA for attestation purposes.
Add a field to kvm_sev_info that holds the set of features to be stored
in the VMSA; and query it instead of referring to the module parameters.
Because KVM_SEV_INIT and KVM_SEV_ES_INIT accept no parameters, this
does not yet introduce any functional change, but it paves the way for
an API that allows customization of the features per-VM.
Signed-off-by: Paolo Bonzini <[email protected]>
Message-Id: <[email protected]>
Reviewed-by: Michael Roth <[email protected]>
Signed-off-by: Paolo Bonzini <[email protected]>
Message-ID: <[email protected]>
Signed-off-by: Paolo Bonzini <[email protected]>
Diffstat (limited to 'arch/x86/kvm/svm/svm.h')
| -rw-r--r-- | arch/x86/kvm/svm/svm.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/x86/kvm/svm/svm.h b/arch/x86/kvm/svm/svm.h index 1c6601a9cbbf..4a1623cacbae 100644 --- a/arch/x86/kvm/svm/svm.h +++ b/arch/x86/kvm/svm/svm.h @@ -85,6 +85,7 @@ struct kvm_sev_info { unsigned long pages_locked; /* Number of pages locked */ struct list_head regions_list; /* List of registered regions */ u64 ap_jump_table; /* SEV-ES AP Jump Table address */ + u64 vmsa_features; struct kvm *enc_context_owner; /* Owner of copied encryption context */ struct list_head mirror_vms; /* List of VMs mirroring */ struct list_head mirror_entry; /* Use as a list entry of mirrors */ @@ -670,7 +671,7 @@ void sev_vcpu_after_set_cpuid(struct vcpu_svm *svm); int sev_es_string_io(struct vcpu_svm *svm, int size, unsigned int port, int in); void sev_es_vcpu_reset(struct vcpu_svm *svm); void sev_vcpu_deliver_sipi_vector(struct kvm_vcpu *vcpu, u8 vector); -void sev_es_prepare_switch_to_guest(struct sev_es_save_area *hostsa); +void sev_es_prepare_switch_to_guest(struct vcpu_svm *svm, struct sev_es_save_area *hostsa); void sev_es_unmap_ghcb(struct vcpu_svm *svm); #ifdef CONFIG_KVM_AMD_SEV |