[BOOT:MM] Big work on MM :)

BOOT/ENVIRON/INC/bootmgr.h

@@ -106,7 +106,7 @@ typedef struct {
     ULONG MdlOffset;
     ULONG DescriptorCount;
     ULONG DescriptorSize;
-    ULONG BasePageOffset;
+    ULONG FirstPageOffset;
 } BOOT_MEMORY_INFO, *PBOOT_MEMORY_INFO;
 
 //
@@ -154,11 +154,12 @@ typedef enum {
 typedef struct {
     LIST_ENTRY ListEntry;
 
-    ULONGLONG BasePage;
-    ULONG Pages;
+    ULONGLONG FirstPage;
+    ULONGLONG MappedFirstPage;
+    ULONG PageCount;
 
     ULONG Attributes;
-    ULONG Type;
+    MEMORY_TYPE Type;
 } MEMORY_DESCRIPTOR, *PMEMORY_DESCRIPTOR;
 
 typedef enum {