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-rw-r--r--include/asm-x86_64/segment.h8
1 files changed, 8 insertions, 0 deletions
diff --git a/include/asm-x86_64/segment.h b/include/asm-x86_64/segment.h
index adf2bf1e187c..04b8ab21328f 100644
--- a/include/asm-x86_64/segment.h
+++ b/include/asm-x86_64/segment.h
@@ -3,6 +3,14 @@
#include <asm/cache.h>
+/* Simple and small GDT entries for booting only */
+
+#define GDT_ENTRY_BOOT_CS 2
+#define __BOOT_CS (GDT_ENTRY_BOOT_CS * 8)
+
+#define GDT_ENTRY_BOOT_DS (GDT_ENTRY_BOOT_CS + 1)
+#define __BOOT_DS (GDT_ENTRY_BOOT_DS * 8)
+
#define __KERNEL_CS 0x10
#define __KERNEL_DS 0x18
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