__vm_set_user_memory_region
int __vm_set_user_memory_region(struct kvm_vm *vm, uint32_t slot, uint32_t flags,
int ret = __vm_set_user_memory_region(vm, slot, flags, gpa, size, hva);
r = __vm_set_user_memory_region(vm, 0, BIT(i),
ret = __vm_set_user_memory_region(vm, max_mem_slots, 0,