[Feature]add MT2731_MP2_MR2_SVN388 baseline version
Change-Id: Ief04314834b31e27effab435d3ca8ba33b499059
diff --git a/src/kernel/linux/v4.14/arch/x86/mm/physaddr.h b/src/kernel/linux/v4.14/arch/x86/mm/physaddr.h
new file mode 100644
index 0000000..9f6419c
--- /dev/null
+++ b/src/kernel/linux/v4.14/arch/x86/mm/physaddr.h
@@ -0,0 +1,11 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#include <asm/processor.h>
+
+static inline int phys_addr_valid(resource_size_t addr)
+{
+#ifdef CONFIG_PHYS_ADDR_T_64BIT
+ return !(addr >> boot_cpu_data.x86_phys_bits);
+#else
+ return 1;
+#endif
+}