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