diff --git a/arch/x86/kvm/hyperv.c b/arch/x86/kvm/hyperv.c index 599b06733f0245f46eed935e3347ad0cc4fdc4d3..e8af5978762b82b9ed5131e2744888cb45a8ac3c 100644 --- a/arch/x86/kvm/hyperv.c +++ b/arch/x86/kvm/hyperv.c @@ -1083,6 +1083,12 @@ int kvm_hv_hypercall(struct kvm_vcpu *vcpu) trace_kvm_hv_hypercall(code, fast, rep_cnt, rep_idx, ingpa, outgpa); + /* Hypercall continuation is not supported yet */ + if (rep_cnt || rep_idx) { + res = HV_STATUS_INVALID_HYPERCALL_CODE; + goto set_result; + } + switch (code) { case HVCALL_NOTIFY_LONG_SPIN_WAIT: kvm_vcpu_on_spin(vcpu); @@ -1092,6 +1098,7 @@ int kvm_hv_hypercall(struct kvm_vcpu *vcpu) break; } +set_result: ret = res | (((u64)rep_done & 0xfff) << 32); if (longmode) { kvm_register_write(vcpu, VCPU_REGS_RAX, ret);