[BOOT:MM] Begin work on memory manager

BOOT/ENVIRON/INC/bootmgr.h

@@ -28,17 +28,18 @@ Abstract:
 #define BOOT_MACHINE_TYPE IMAGE_FILE_MACHINE_I386
 #endif
 
-//
-// No address translation.
-//
-#define BOOT_TRANSLATION_TYPE 0
-
 //
 // Use EFI page size.
 //
 #define PAGE_SIZE  EFI_PAGE_SIZE
 #define PAGE_SHIFT EFI_PAGE_SHIFT
 
+//
+// Address translation types.
+//
+#define BOOT_TRANSLATION_TYPE_NONE 0
+#define BOOT_TRANSLATION_TYPE_MAX  1
+
 #define BOOT_INPUT_PARAMETERS_SIGNATURE 0x50504120544f4f42 /* "BOOT APP" */
 #define BOOT_INPUT_PARAMETERS_VERSION   2
 
@@ -122,6 +123,19 @@ typedef struct {
     ULONG Type;
 } BOOT_MEMORY_DESCRIPTOR, *PBOOT_MEMORY_DESCRIPTOR;
 
+typedef enum {
+    MDL_TYPE_PHYSICAL,
+    MDL_TYPE_VIRTUAL
+} BOOT_MEMORY_DESCRIPTOR_LIST_TYPE;
+
+typedef struct {
+    LIST_ENTRY ListEntry;
+
+    PVOID Head;
+    PVOID Current;
+    BOOT_MEMORY_DESCRIPTOR_LIST_TYPE Type;
+} BOOT_MEMORY_DESCRIPTOR_LIST, *PBOOT_MEMORY_DESCRIPTOR_LIST;
+
 #define BOOT_FIRMWARE_DATA_VERSION 2
 
 typedef struct {
@@ -240,6 +254,10 @@ typedef struct {
     };
 } BOOT_DEVICE, *PBOOT_DEVICE;
 
+#define BCDE_DATA_FORMAT_MASK 0x0F000000
+
+#define BCDE_DATA_FORMAT_DEVICE 1
+
 typedef enum {
     BCDE_DATA_TYPE_APPLICATION_DEVICE = 0x11000001,
     BCDE_DATA_TYPE_APPLICATION_PATH   = 0x22000002