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-rw-r--r--arch/x86/kvm/hyperv.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/x86/kvm/hyperv.c b/arch/x86/kvm/hyperv.c
index 13bfa4e0b93d..293619998c38 100644
--- a/arch/x86/kvm/hyperv.c
+++ b/arch/x86/kvm/hyperv.c
@@ -2099,6 +2099,8 @@ static bool hv_check_hypercall_access(struct kvm_vcpu_hv *hv_vcpu, u16 code)
case HVCALL_NOTIFY_LONG_SPIN_WAIT:
return hv_vcpu->cpuid_cache.enlightenments_ebx &&
hv_vcpu->cpuid_cache.enlightenments_ebx != U32_MAX;
+ case HVCALL_POST_MESSAGE:
+ return hv_vcpu->cpuid_cache.features_ebx & HV_POST_MESSAGES;
default:
break;
}