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Code Issues Releases Wiki Activity

将内核层空间移动到0xffff800000000000

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fslongjin
2022-04-09 21:11:07 +08:00
parent 24b351c9ec
commit 05dc7ac73b
14 changed files with 321 additions and 175 deletions
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28
kernel/common/cpu.c
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@ -7,7 +7,7 @@ void cpu_init(void)
// 获取处理器制造商信息
uint tmp_info[4] = {0};
cpu_cpuid(0, 0, &tmp_info[0], &tmp_info[1], &tmp_info[2], &tmp_info[3]);
// 保存CPU支持的最大cpuid指令主功能号
Cpu_cpuid_max_Basic_mop = tmp_info[0];
// 保存制造商名称
@ -37,28 +37,28 @@ void cpu_init(void)
// EAX中包含 Version Informatin Type,Family,Model,and Stepping ID
Cpu_Stepping_ID = tmp_info[0] & 0xf;
Cpu_Model_ID = (tmp_info[0]>>4) & 0xf;
Cpu_Family_ID = (tmp_info[0]>>8) & 0xf;
Cpu_Processor_Type = (tmp_info[0]>>12)& 0x3;
Cpu_Model_ID = (tmp_info[0] >> 4) & 0xf;
Cpu_Family_ID = (tmp_info[0] >> 8) & 0xf;
Cpu_Processor_Type = (tmp_info[0] >> 12) & 0x3;
// 14-15位保留
Cpu_Extended_Model_ID = (tmp_info[0]>>16)&0xf;
Cpu_Extended_Family_ID = (tmp_info[0]>>20)&0xff;
//31-25位保留
kinfo("Family ID=%#03lx\t Extended Family ID=%#03lx\t Processor Type=%#03lx\t",Cpu_Family_ID, Cpu_Extended_Family_ID, Cpu_Processor_Type);
kinfo("Model ID=%#03lx\t Extended Model ID=%#03lx\tStepping ID=%#03lx\t",Cpu_Model_ID, Cpu_Extended_Model_ID,Cpu_Stepping_ID);
Cpu_Extended_Model_ID = (tmp_info[0] >> 16) & 0xf;
Cpu_Extended_Family_ID = (tmp_info[0] >> 20) & 0xff;
// 31-25位保留
kinfo("Family ID=%#03lx\t Extended Family ID=%#03lx\t Processor Type=%#03lx\t", Cpu_Family_ID, Cpu_Extended_Family_ID, Cpu_Processor_Type);
kinfo("Model ID=%#03lx\t Extended Model ID=%#03lx\tStepping ID=%#03lx\t", Cpu_Model_ID, Cpu_Extended_Model_ID, Cpu_Stepping_ID);
// 使用0x80000008主功能号，查询处理器支持的最大可寻址地址线宽度
cpu_cpuid(0x80000008, 0, &tmp_info[0], &tmp_info[1], &tmp_info[2], &tmp_info[3]);
Cpu_max_phys_addrline_size = tmp_info[0]&0xff;
Cpu_max_linear_addrline_size = (tmp_info[0]>>8)&0xff;
Cpu_max_phys_addrline_size = tmp_info[0] & 0xff;
Cpu_max_linear_addrline_size = (tmp_info[0] >> 8) & 0xff;
kinfo("Cpu_max_phys_addrline_size = %d", Cpu_max_phys_addrline_size);
kinfo("Cpu_max_linear_addrline_size = %d", Cpu_max_linear_addrline_size);
cpu_cpuid(0x80000000, 0, &tmp_info[0], &tmp_info[1], &tmp_info[2], &tmp_info[3]);
Cpu_cpuid_max_Extended_mop = tmp_info[0];
kinfo("Max basic mop=%#05lx",Cpu_cpuid_max_Basic_mop);
kinfo("Max extended mop=%#05lx",Cpu_cpuid_max_Extended_mop);
kinfo("Max basic mop=%#05lx", Cpu_cpuid_max_Basic_mop);
kinfo("Max extended mop=%#05lx", Cpu_cpuid_max_Extended_mop);
return;
}