diff options
Diffstat (limited to 'arch/x86/kvm/vmx/hyperv.h')
| -rw-r--r-- | arch/x86/kvm/vmx/hyperv.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/arch/x86/kvm/vmx/hyperv.h b/arch/x86/kvm/vmx/hyperv.h index d4ed99008518..6e1ee951e360 100644 --- a/arch/x86/kvm/vmx/hyperv.h +++ b/arch/x86/kvm/vmx/hyperv.h @@ -4,6 +4,7 @@ #include <linux/kvm_host.h> #include "vmcs12.h" +#include "vmx.h" #define EVMPTR_INVALID (-1ULL) #define EVMPTR_MAP_PENDING (-2ULL) @@ -20,6 +21,16 @@ enum nested_evmptrld_status { EVMPTRLD_ERROR, }; +static inline bool guest_cpuid_has_evmcs(struct kvm_vcpu *vcpu) +{ + /* + * eVMCS is exposed to the guest if Hyper-V is enabled in CPUID and + * eVMCS has been explicitly enabled by userspace. + */ + return vcpu->arch.hyperv_enabled && + to_vmx(vcpu)->nested.enlightened_vmcs_enabled; +} + u64 nested_get_evmptr(struct kvm_vcpu *vcpu); uint16_t nested_get_evmcs_version(struct kvm_vcpu *vcpu); int nested_enable_evmcs(struct kvm_vcpu *vcpu, |