Changeset 852

Timestamp:

08/21/08 21:45:43 (3 years ago)

Author:

mwhitworth

Message:

Add some CPUID functions for infofs.

Files:

• Whitix/trunk/arch/i386/kernel/cpuid.c (modified) (3 diffs)

Whitix/trunk/arch/i386/kernel/cpuid.c

@@ -19 +19 @@
 #include <i386/cpuid.h>
 #include <print.h>
+#include <module.h>
 
 /* Saves the edx value of CPUID level 1. Used to check for RDTSC, SYSENTER and other instructions. 
  * Needs to be adjusted for multicore systems. */
 DWORD features=0;
+DWORD maxLevel=0;
 
 DWORD CpuIdSupports(DWORD mask)
@@ -51 +53 @@
 }
 
+void CpuIdVendorId(char* str)
+{
+        DWORD eax;
+        
+        CpuId(0, &eax, (DWORD*)&str[0], (DWORD*)&str[8], (DWORD*)&str[4]);      
+}
+
+SYMBOL_EXPORT(CpuIdVendorId);
+
+void CpuIdName(char* str)
+{
+        ZeroMemory(str, 48);
+        
+        if (maxLevel > 0x80000004)
+        {
+                CpuId(0x80000002, (DWORD*)&str[0], (DWORD*)&str[4], (DWORD*)&str[8], (DWORD*)&str[12]);
+                CpuId(0x80000003, (DWORD*)&str[16], (DWORD*)&str[20], (DWORD*)&str[24], (DWORD*)&str[28]);
+                CpuId(0x80000004, (DWORD*)&str[32], (DWORD*)&str[36], (DWORD*)&str[40], (DWORD*)&str[44]);
+        }
+}
+
+SYMBOL_EXPORT(CpuIdName);
+
+DWORD* CpuIdFeatures()
+{
+        return &features;
+}
+
+SYMBOL_EXPORT(CpuIdFeatures);
+
 /***********************************************************************
  *
@@ -65 +97 @@
 {
         char str[12];
-        DWORD maxLevel;
         DWORD eax,ebx,ecx; /* Used to ignore values. */