diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index c8160baf3838..12fa68a06966 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -12724,6 +12724,13 @@ int kvm_arch_init_vm(struct kvm *kvm, unsigned long type)
 	kvm_hv_init_vm(kvm);
 	kvm_xen_init_vm(kvm);
 
+	if (ignore_msrs && !report_ignored_msrs) {
+		pr_warn_once("Running KVM with ignore_msrs=1 and report_ignored_msrs=0 is not a\n"
+			     "a supported configuration.  Lying to the guest about the existence of MSRs\n"
+			     "may cause the guest operating system to hang or produce errors.  If a guest\n"
+			     "does not run without ignore_msrs=1, please report it to kvm@vger.kernel.org.\n");
+	}
+
 	return 0;
 
 out_uninit_mmu: