1/* 2 * Copyright 2017, Data61 3 * Commonwealth Scientific and Industrial Research Organisation (CSIRO) 4 * ABN 41 687 119 230. 5 * 6 * This software may be distributed and modified according to the terms of 7 * the BSD 2-Clause license. Note that NO WARRANTY is provided. 8 * See "LICENSE_BSD2.txt" for details. 9 * 10 * @TAG(DATA61_BSD) 11 */ 12#pragma once 13 14#include <stdint.h> 15#include <sel4/sel4.h> 16#include <sel4/faults.h> 17#include <sel4utils/sel4_arch/util.h> 18#include <utils/arith.h> 19 20#define ARCH_SYSCALL_INSTRUCTION_SIZE 2 21 22static inline int 23sel4utils_is_read_fault(void) 24{ 25 seL4_Word fsr = seL4_GetMR(seL4_VMFault_FSR); 26 return (fsr & (BIT(1))) == 0; 27} 28 29