vm_gla2gpa_nofault
if (vm_gla2gpa_nofault(vcpu, &paging, vaddr, PROT_READ, paddr,
int vm_gla2gpa_nofault(struct vcpu *vcpu,
int vm_gla2gpa_nofault(struct vm *vm, int vcpuid,
error = vm_gla2gpa_nofault(sc->vmm_vm, vcpu, &gg.paging,