[BOOT] More header stuff

BOOT/ENVIRON/INC/mm.h

@@ -24,6 +24,13 @@ MmFwGetMemoryMap (
    IN ULONG Flags
    );
 
+NTSTATUS
+MmMdAddDescriptorToList (
+    IN PMEMORY_DESCRIPTOR_LIST Mdl,
+    IN PMEMORY_DESCRIPTOR Descriptor,
+    IN ULONG Flags
+    );
+
 VOID
 MmMdRemoveDescriptorFromList (
     IN PMEMORY_DESCRIPTOR_LIST Mdl,
@@ -40,6 +47,15 @@ MmMdFreeList (
     IN PMEMORY_DESCRIPTOR_LIST Mdl
     );
 
+PMEMORY_DESCRIPTOR
+MmMdInitDescriptor (
+    IN ULONGLONG BasePage,
+    IN ULONGLONG MappedBasePage,
+    IN ULONGLONG PageCount,
+    IN ULONG Attributes,
+    IN MEMORY_TYPE Type
+    );
+
 VOID
 MmMdInitialize (
     IN ULONG Unused,