diff --git a/reactos/ntoskrnl/include/internal/i386/ke.h b/reactos/ntoskrnl/include/internal/i386/ke.h
index 94120049a96..cd6a64a78ff 100644
--- a/reactos/ntoskrnl/include/internal/i386/ke.h
+++ b/reactos/ntoskrnl/include/internal/i386/ke.h
@@ -26,6 +26,21 @@
 #define X86_CR4_OSFXSR          0x00000200 /* enable FXSAVE/FXRSTOR instructions */
 #define X86_CR4_OSXMMEXCPT      0x00000400 /* enable #XF exception */
 
+#define X86_FEATURE_VME         0x00000002 /* Virtual 8086 Extensions are present */
+#define X86_FEATURE_TSC         0x00000010 /* time stamp counters are present */
+#define X86_FEATURE_PAE         0x00000040 /* physical address extension is present */
+#define X86_FEATURE_CX8         0x00000100 /* CMPXCHG8B instruction present */
+#define X86_FEATURE_SYSCALL     0x00000800 /* SYSCALL/SYSRET support present */
+#define X86_FEATURE_PGE         0x00002000 /* Page Global Enable */
+#define X86_FEATURE_MMX         0x00800000 /* MMX extension present */
+#define X86_FEATURE_FXSR        0x01000000 /* FXSAVE/FXRSTOR instructions present */
+#define X86_FEATURE_SSE         0x02000000 /* SSE extension present */
+#define X86_FEATURE_SSE2        0x04000000 /* SSE2 extension present */
+#define X86_FEATURE_HT          0x10000000 /* Hyper-Threading present */
+
+#define X86_EXT_FEATURE_SSE3    0x00000001 /* SSE3 extension present */
+#define X86_EXT_FEATURE_3DNOW   0x40000000 /* 3DNOW! extension present */
+
 #define DR7_ACTIVE              0x00000055  /* If any of these bits are set, a Dr is active */
 
 #define FRAME_EDITED        0xFFF8