x86/kvm/hyper-v: don't recommend doing reset via synthetic MSR

System reset through synthetic MSR is not recommended neither by genuine
Hyper-V nor my QEMU.

Fixes: 2bc39970e932 ("x86/kvm/hyper-v: Introduce KVM_GET_SUPPORTED_HV_CPUID")
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Reviewed-by: Liran Alon <liran.alon@oracle.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

diff --git a/arch/x86/kvm/hyperv.c b/arch/x86/kvm/hyperv.c
index ac44a681f06576321338014a20efe02d7bf3d6ef..4840f5b3c88f96dd001b3eaafb87c4adf22d7862 100644 (file)
--- a/arch/x86/kvm/hyperv.c
+++ b/arch/x86/kvm/hyperv.c
@@ -1847,7 +1847,6 @@ int kvm_vcpu_ioctl_get_hv_cpuid(struct kvm_vcpu *vcpu, struct kvm_cpuid2 *cpuid,
                case HYPERV_CPUID_ENLIGHTMENT_INFO:
                        ent->eax |= HV_X64_REMOTE_TLB_FLUSH_RECOMMENDED;
                        ent->eax |= HV_X64_APIC_ACCESS_RECOMMENDED;
-                       ent->eax |= HV_X64_SYSTEM_RESET_RECOMMENDED;
                        ent->eax |= HV_X64_RELAXED_TIMING_RECOMMENDED;
                        ent->eax |= HV_X64_CLUSTER_IPI_RECOMMENDED;
                        ent->eax |= HV_X64_EX_PROCESSOR_MASKS_RECOMMENDED;