1 files changed, 44 insertions, 0 deletions
diff --git a/src/kernel/cpuid.C b/src/kernel/cpuid.C
new file mode 100644
index 000000000..a8d884bf2
--- /dev/null
+++ b/src/kernel/cpuid.C
@@ -0,0 +1,44 @@
+/** @file cpuid.C
+ *  Implementation of the cpuid functions.
+ */
+
+#include <kernel/cpuid.H>
+
+namespace CpuID
+{
+    ProcessorCoreType getCpuType()
+    {
+        uint64_t l_pvr = getPVR();
+
+        // Layout of the PVR is (32-bit):
+        //     2 nibbles reserved.
+        //     2 nibbles chip type.
+        //     1 nibble technology.
+        //     1 nibble major DD.
+        //     1 nibble reserved.
+        //     1 nibble minor DD.
+
+        switch(l_pvr & 0xFFFF0000)
+        {
+            case 0x003F0000:
+                return POWER7;
+
+            case 0x004A0000:
+                return POWER7_PLUS;
+
+            case 0x004B0000:
+                return POWER8_VENICE;
+
+            default:
+                return UNKNOWN;
+        }
+    }
+
+    uint8_t getCpuDD()
+    {
+        uint64_t l_pvr = getPVR();
+        return ((l_pvr & 0x0F00) >> 4) | (l_pvr & 0x000F);
+    }
+};
+
+