[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 {

BOOT/ENVIRON/INC/mm.h

@@ -18,12 +18,27 @@ Abstract:
 
 #include "bootlib.h"
 
+#define MDL_OPERATION_FLAGS_TRUNCATE 0x02
+
 NTSTATUS
 MmFwGetMemoryMap (
    IN OUT PMEMORY_DESCRIPTOR_LIST Mdl,
    IN ULONG Flags
    );
 
+BOOLEAN
+MmMdpHasPrecedence (
+    IN MEMORY_TYPE A,
+    IN MEMORY_TYPE B
+    );
+
+BOOLEAN
+MmMdpTruncateDescriptor (
+    IN PMEMORY_DESCRIPTOR_LIST Mdl,
+    IN PMEMORY_DESCRIPTOR Descriptor,
+    IN ULONG Flags
+    );
+
 NTSTATUS
 MmMdAddDescriptorToList (
     IN PMEMORY_DESCRIPTOR_LIST Mdl,
@@ -49,8 +64,8 @@ MmMdFreeList (
 
 PMEMORY_DESCRIPTOR
 MmMdInitDescriptor (
-    IN ULONGLONG BasePage,
-    IN ULONGLONG MappedBasePage,
+    IN ULONGLONG FirstPage,
+    IN ULONGLONG MappedFirstPage,
     IN ULONGLONG PageCount,
     IN ULONG Attributes,
     IN MEMORY_TYPE Type