diff --git a/include/boot/os_info.h b/include/boot/os_info.h
index d2605297..679c094c 100644
--- a/include/boot/os_info.h
+++ b/include/boot/os_info.h
@@ -24,11 +24,25 @@
 #define OS_INFO_VMCOREINFO		0
 #define OS_INFO_REIPL_BLOCK		1
 #define OS_INFO_FLAGS_ENTRY		2
+#define OS_INFO_RESERVED		3
+#define OS_INFO_IDENTITY_BASE		4
+#define OS_INFO_KASLR_OFFSET		5
+#define OS_INFO_KASLR_OFF_PHYS		6
+#define OS_INFO_VMEMMAP			7
+#define OS_INFO_AMODE31_START		8
+#define OS_INFO_AMODE31_END		9
+#define OS_INFO_IMAGE_START		10
+#define OS_INFO_IMAGE_END		11
+#define OS_INFO_IMAGE_PHYS		12
+#define OS_INFO_MAX			13
 
 #define OS_INFO_FLAG_REIPL_CLEAR	(1UL << 0)
 
 struct os_info_entry {
-	uint64_t addr;
+	union {
+		uint64_t addr;
+		uint64_t val;
+	};
 	uint64_t size;
 	uint32_t csum;
 } __packed;
@@ -40,8 +54,8 @@ struct os_info {
 	uint16_t version_minor;
 	uint64_t crashkernel_addr;
 	uint64_t crashkernel_size;
-	struct os_info_entry entry[3];
-	uint8_t reserved[4004];
+	struct  os_info_entry entry[OS_INFO_MAX];
+	uint8_t reserved[3804];
 } __packed;
 
 /*