| 43,6 → 43,7 |
|---|
| #include <print.h> |
| #include <arch/cpuid.h> |
| #include <arch/acpi/acpi.h> |
| #include <panic.h> |
| |
| void arch_pre_mm_init(void) |
| { |
| 49,12 → 50,20 |
|---|
| struct cpu_info cpuid_s; |
| |
| cpuid(AMD_CPUID_EXTENDED,&cpuid_s); |
| if (! (cpuid_s.cpuid_edx & (1<<AMD_EXT_NOEXECUTE))) { |
| printf("We do not support NX!!-----------\n"); |
| printf("%X------\n",cpuid_s.cpuid_edx); |
| cpu_halt(); |
| } |
| if (! (cpuid_s.cpuid_edx & (1<<AMD_EXT_NOEXECUTE))) |
| panic("Processor does not support No-execute pages.\n"); |
| |
| cpuid(INTEL_CPUID_STANDARD,&cpuid_s); |
| if (! (cpuid_s.cpuid_edx & (1<<INTEL_FXSAVE))) |
| panic("Processor does not support FXSAVE/FXRESTORE.\n"); |
| |
| if (! (cpuid_s.cpuid_edx & (1<<INTEL_SSE2))) |
| panic("Processor does not support SSE2 instructions.\n"); |
| |
| /* Enable No-execute pages */ |
| set_efer_flag(AMD_NXE_FLAG); |
| /* Enable FPU */ |
| cpu_setup_fpu(); |
| |
| pm_init(); |
| |