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🔧 使cpu支持SSE（目前会出现#GP）

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This commit is contained in:
fslongjin
2022-01-27 14:58:14 +08:00
parent ae52d9c2d2
commit 40a551d154
9 changed files with 198 additions and 16 deletions
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14
kernel/main.c
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@ -6,8 +6,10 @@
#include "common/printk.h"
#include "exception/gate.h"
#include "exception/trap.h"
#include "mm/mm.h"
int *FR_address = (int *)0xffff800000a00000; //帧缓存区的地址
char fxsave_region[512] __attribute__((aligned(16)));
void show_welcome()
{
@ -67,11 +69,16 @@ void init()
// 初始化任务状态段表
ul tss_item_addr = 0xffff800000007c00;
set_TSS64(tss_item_addr, tss_item_addr, tss_item_addr, tss_item_addr, tss_item_addr,
tss_item_addr, tss_item_addr, tss_item_addr, tss_item_addr, tss_item_addr);
tss_item_addr, tss_item_addr, tss_item_addr, tss_item_addr, tss_item_addr);
// 初始化中断描述符表
init_sys_vector();
asm volatile(" fxsave %0 " ::"m"(fxsave_region));
// 初始化内存管理单元
printk("[ DragonOS ] Initializing memory manage unit...\n");
mm_init();
}
//操作系统内核从这里开始执行
void Start_Kernel(void)
@ -80,13 +87,10 @@ void Start_Kernel(void)
init();
show_welcome();
//test_printk();
//int t = 1 / 0; // 测试异常处理模块能否正常工作 触发除法错误
int t = *(int*) 0xffff80000aa00000; // 触发页故障
// int t = *(int *)0xffff80000aa00000; // 触发页故障
while (1)
;