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存在bug，apu启动后触发异常会Reset

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This commit is contained in:
fslongjin
2022-04-06 15:11:14 +08:00
parent a62454587e
commit b7df2805ed
8 changed files with 214 additions and 99 deletions
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21
kernel/driver/interrupt/apic/apic.c
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@ -390,18 +390,17 @@ void apic_local_apic_init()
void apic_init()
{
// 初始化主芯片
io_out8(0x20, 0x11); // 初始化主芯片的icw1
io_out8(0x21, 0x20); // 设置主芯片的中断向量号为0x20(0x20-0x27)
io_out8(0x21, 0x04); // 设置int2端口级联从芯片
io_out8(0x21, 0x01); // 设置为AEOI模式、FNM、无缓冲
// 初始化主芯片
io_out8(0x20, 0x11); // 初始化主芯片的icw1
io_out8(0x21, 0x20); // 设置主芯片的中断向量号为0x20(0x20-0x27)
io_out8(0x21, 0x04); // 设置int2端口级联从芯片
io_out8(0x21, 0x01); // 设置为AEOI模式、FNM、无缓冲
// 初始化从芯片
io_out8(0xa0, 0x11);
io_out8(0xa1, 0x28); // 设置从芯片的中断向量号为0x28(0x28-0x2f)
io_out8(0xa1, 0x02); // 设置从芯片连接到主芯片的int2
io_out8(0xa1, 0x01);
// 初始化从芯片
io_out8(0xa0, 0x11);
io_out8(0xa1, 0x28); // 设置从芯片的中断向量号为0x28(0x28-0x2f)
io_out8(0xa1, 0x02); // 设置从芯片连接到主芯片的int2
io_out8(0xa1, 0x01);
// 屏蔽类8259A芯片
io_mfence();
io_out8(0xa1, 0xff);