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进入用户模式（系统调用存在page fault的bug）

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This commit is contained in:
fslongjin
2022-04-11 10:32:39 +08:00
parent c09c6d4e66
commit dacc29310f
9 changed files with 96 additions and 79 deletions
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4
kernel/driver/timers/rtc/rtc.c
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@ -22,7 +22,7 @@ enum CMOSTimeSelector
int rtc_get_cmos_time(struct rtc_time_t *t)
{
// 为防止中断请求打断该过程，需要先关中断
cli();
//cli();
uint8_t status_register_B = read_cmos(0x0B); // 读取状态寄存器B
bool is_24h = ((status_register_B & 0x02) ? true : false); // 判断是否启用24小时模式
@ -53,6 +53,6 @@ int rtc_get_cmos_time(struct rtc_time_t *t)
if ((!is_24h) && t->hour & 0x80) // 将十二小时制转为24小时
t->hour = ((t->hour & 0x7f) + 12) % 24;
sti();
//sti();
return 0;
}