diff options
| author | Vitaly Kuznetsov <vkuznets@redhat.com> | 2021-05-21 11:51:59 +0200 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2021-06-17 13:09:44 -0400 |
| commit | bb53ecb4d6ea453e55a971295e55dbf76adc0f8c (patch) | |
| tree | d6c6845d21b05a2e8851a137296642b4f5c347d8 /arch/x86/kvm/hyperv.c | |
| parent | a921cf83cc4c927f29eef1e7a17bff176c74b886 (diff) | |
KVM: x86: hyper-v: Honor HV_X64_REMOTE_TLB_FLUSH_RECOMMENDED bit
Hyper-V partition must possess 'HV_X64_REMOTE_TLB_FLUSH_RECOMMENDED'
privilege ('recommended' is rather a misnomer) to issue
HVCALL_FLUSH_VIRTUAL_ADDRESS_LIST/SPACE hypercalls.
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20210521095204.2161214-26-vkuznets@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86/kvm/hyperv.c')
| -rw-r--r-- | arch/x86/kvm/hyperv.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/x86/kvm/hyperv.c b/arch/x86/kvm/hyperv.c index 3d6b448ab18f..831279976d9f 100644 --- a/arch/x86/kvm/hyperv.c +++ b/arch/x86/kvm/hyperv.c @@ -2112,6 +2112,12 @@ static bool hv_check_hypercall_access(struct kvm_vcpu_hv *hv_vcpu, u16 code) */ return !kvm_hv_is_syndbg_enabled(hv_vcpu->vcpu) || hv_vcpu->cpuid_cache.features_ebx & HV_DEBUGGING; + case HVCALL_FLUSH_VIRTUAL_ADDRESS_LIST_EX: + case HVCALL_FLUSH_VIRTUAL_ADDRESS_SPACE_EX: + case HVCALL_FLUSH_VIRTUAL_ADDRESS_LIST: + case HVCALL_FLUSH_VIRTUAL_ADDRESS_SPACE: + return hv_vcpu->cpuid_cache.enlightenments_eax & + HV_X64_REMOTE_TLB_FLUSH_RECOMMENDED; default: break; } |