- if (!((vmcs12->exception_bitmap & (1u << nr)) ||
- (nr == PF_VECTOR && vcpu->arch.exception.nested_apf)))
- return 0;
+ if (nr == PF_VECTOR) {
+ if (vcpu->arch.exception.nested_apf) {
+ nested_vmx_inject_exception_vmexit(vcpu,
+ vcpu->arch.apf.nested_apf_token);
+ return 1;
+ }
+ /*
+ * FIXME: we must not write CR2 when L1 intercepts an L2 #PF exception.
+ * The fix is to add the ancillary datum (CR2 or DR6) to structs
+ * kvm_queued_exception and kvm_vcpu_events, so that CR2 and DR6
+ * can be written only when inject_pending_event runs. This should be
+ * conditional on a new capability---if the capability is disabled,
+ * kvm_multiple_exception would write the ancillary information to
+ * CR2 or DR6, for backwards ABI-compatibility.
+ */
+ if (nested_vmx_is_page_fault_vmexit(vmcs12,
+ vcpu->arch.exception.error_code)) {
+ nested_vmx_inject_exception_vmexit(vcpu, vcpu->arch.cr2);
+ return 1;
+ }
+ } else {
+ unsigned long exit_qual = 0;
+ if (nr == DB_VECTOR)
+ exit_qual = vcpu->arch.dr6;