diff --git a/hypervisor/arch/x86/guest/guest.c b/hypervisor/arch/x86/guest/guest.c
index 974392a2e..438cd3967 100644
--- a/hypervisor/arch/x86/guest/guest.c
+++ b/hypervisor/arch/x86/guest/guest.c
@@ -680,3 +680,36 @@ uint64_t create_guest_initial_paging(struct vm *vm)
 
 	return GUEST_INIT_PAGE_TABLE_START;
 }
+
+/*******************************************************************
+ *         GUEST initial GDT table
+ *
+ * If guest starts with protected mode, HV needs to prepare Guest GDT.
+ ******************************************************************/
+
+#define GUEST_INIT_GDT_SKIP_SIZE	0x8000UL
+#define GUEST_INIT_GDT_START	(CONFIG_LOW_RAM_START +	\
+					GUEST_INIT_GDT_SKIP_SIZE)
+
+/* The GDT defined below compatible with linux kernel */
+#define GUEST_INIT_GDT_DESC_0	(0x0)
+#define GUEST_INIT_GDT_DESC_1	(0x0)
+#define GUEST_INIT_GDT_DESC_2	(0x00CF9B000000FFFFULL) /* Linear Code */
+#define GUEST_INIT_GDT_DESC_3	(0x00CF93000000FFFFULL) /* Linear Data */
+
+static const uint64_t guest_init_gdt[] = {
+	GUEST_INIT_GDT_DESC_0,
+	GUEST_INIT_GDT_DESC_1,
+	GUEST_INIT_GDT_DESC_2,
+	GUEST_INIT_GDT_DESC_3,
+};
+
+uint32_t create_guest_init_gdt(struct vm *vm, uint32_t *limit)
+{
+	void *gtd_addr = GPA2HVA(vm, GUEST_INIT_GDT_START);
+
+	*limit = sizeof(guest_init_gdt) - 1;
+	memcpy_s(gtd_addr, 64, guest_init_gdt, sizeof(guest_init_gdt));
+
+	return GUEST_INIT_GDT_START;
+};
diff --git a/hypervisor/include/arch/x86/guest/guest.h b/hypervisor/include/arch/x86/guest/guest.h
index 7cc41418b..4329f8107 100644
--- a/hypervisor/include/arch/x86/guest/guest.h
+++ b/hypervisor/include/arch/x86/guest/guest.h
@@ -123,6 +123,8 @@ extern vm_sw_loader_t vm_sw_loader;
 
 int copy_from_vm(struct vm *vm, void *h_ptr, uint64_t gpa, uint32_t size);
 int copy_to_vm(struct vm *vm, void *h_ptr, uint64_t gpa, uint32_t size);
+
+uint32_t create_guest_init_gdt(struct vm *vm, uint32_t *limit);
 #endif	/* !ASSEMBLER */
 
 #endif /* GUEST_H*/