diff --git a/arch/x86/zefi/efi.h b/arch/x86/zefi/efi.h
index 719e2917313..863728133ce 100644
--- a/arch/x86/zefi/efi.h
+++ b/arch/x86/zefi/efi.h
@@ -10,6 +10,7 @@
 #ifndef _ASMLANGUAGE
 
 #include <stdbool.h>
+#include <sys/util.h>
 
 #define __abi __attribute__((ms_abi))
 
@@ -29,6 +30,43 @@
 
 typedef uintptr_t efi_status_t;
 
+#define EFI_STATUS(_status)		(_status | BIT((BITS_PER_LONG-1)))
+
+#define EFI_SUCCESS			0
+#define EFI_LOAD_ERROR			EFI_STATUS(1)
+#define EFI_INVALID_PARAMETER		EFI_STATUS(2)
+#define EFI_UNSUPPORTED			EFI_STATUS(3)
+#define EFI_BAD_BUFFER_SIZE		EFI_STATUS(4)
+#define EFI_BUFFER_TOO_SMALL		EFI_STATUS(5)
+#define EFI_NOT_READY			EFI_STATUS(6)
+#define EFI_DEVICE_ERROR		EFI_STATUS(7)
+#define EFI_WRITE_PROTECTED		EFI_STATUS(8)
+#define EFI_OUT_OF_RESOURCES		EFI_STATUS(9)
+#define EFI_VOLUME_CORRUPTED		EFI_STATUS(10)
+#define EFI_VOLUME_FULL			EFI_STATUS(11)
+#define EFI_NO_MEDIA			EFI_STATUS(12)
+#define EFI_MEDIA_CHANGED		EFI_STATUS(13)
+#define EFI_NOT_FOUND			EFI_STATUS(14)
+#define EFI_ACCESS_DENIED		EFI_STATUS(15)
+#define EFI_NO_RESPONSE			EFI_STATUS(16)
+#define EFI_NO_MAPPING			EFI_STATUS(17)
+#define EFI_TIMEOUT			EFI_STATUS(18)
+#define EFI_NOT_STARTED			EFI_STATUS(19)
+#define EFI_ALREADY_STARTED		EFI_STATUS(20)
+#define EFI_ABORTED			EFI_STATUS(21)
+#define EFI_ICMP_ERROR			EFI_STATUS(22)
+#define EFI_TFTP_ERROR			EFI_STATUS(23)
+#define EFI_PROTOCOL_ERROR		EFI_STATUS(24)
+#define EFI_INCOMPATIBLE_VERSION	EFI_STATUS(25)
+#define EFI_SECURITY_VIOLATION		EFI_STATUS(26)
+#define EFI_CRC_ERROR			EFI_STATUS(27)
+#define EFI_END_OF_MEDIA		EFI_STATUS(28)
+#define EFI_END_OF_FILE			EFI_STATUS(31)
+#define EFI_INVALID_LANGUAGE		EFI_STATUS(32)
+#define EFI_COMPROMISED_DATA		EFI_STATUS(33)
+#define EFI_IP_ADDRESS_CONFLICT		EFI_STATUS(34)
+#define EFI_HTTP_ERROR			EFI_STATUS(35)
+
 typedef struct {
 	union {
 		struct {