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| author | Vitaly Kuznetsov <vkuznets@redhat.com> | 2021-05-21 11:51:57 +0200 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2021-06-17 13:09:43 -0400 |
| commit | a60b3c594ef3221275d4fa8aa94e206607ea66f3 (patch) | |
| tree | 39e16f9c65d1fee558408cdef4b9c373a89cd0b1 | |
| parent | 4f532b7f969fcba010703fe21e0a85f662373041 (diff) | |
| download | lwn-a60b3c594ef3221275d4fa8aa94e206607ea66f3.tar.gz lwn-a60b3c594ef3221275d4fa8aa94e206607ea66f3.zip | |
KVM: x86: hyper-v: Honor HV_SIGNAL_EVENTS privilege bit
Hyper-V partition must possess 'HV_SIGNAL_EVENTS' privilege to issue
HVCALL_SIGNAL_EVENT hypercalls.
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20210521095204.2161214-24-vkuznets@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
| -rw-r--r-- | arch/x86/kvm/hyperv.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/x86/kvm/hyperv.c b/arch/x86/kvm/hyperv.c index 293619998c38..ce057827da03 100644 --- a/arch/x86/kvm/hyperv.c +++ b/arch/x86/kvm/hyperv.c @@ -2101,6 +2101,8 @@ static bool hv_check_hypercall_access(struct kvm_vcpu_hv *hv_vcpu, u16 code) hv_vcpu->cpuid_cache.enlightenments_ebx != U32_MAX; case HVCALL_POST_MESSAGE: return hv_vcpu->cpuid_cache.features_ebx & HV_POST_MESSAGES; + case HVCALL_SIGNAL_EVENT: + return hv_vcpu->cpuid_cache.features_ebx & HV_SIGNAL_EVENTS; default: break; } |