add detail comments on the complicated code segment.

[mirror_edk2.git] / MdeModulePkg / Core / Dxe / Mem / Pool.c

diff --git a/MdeModulePkg/Core/Dxe/Mem/Pool.c b/MdeModulePkg/Core/Dxe/Mem/Pool.c
index cea6fada4c367c95b4b53c4ffef1d1900e1eb85f..ce70cff51353efce46f5eae472e24d00d2a30197 100644 (file)
--- a/MdeModulePkg/Core/Dxe/Mem/Pool.c
+++ b/MdeModulePkg/Core/Dxe/Mem/Pool.c
@@ -124,6 +124,10 @@ LookupPoolHead (
     return &mPoolHead[MemoryType];\r
   }\r
 \r
+  //\r
+  // MemoryType values in the range 0x80000000..0xFFFFFFFF are reserved for use by UEFI \r
+  // OS loaders that are provided by operating system vendors\r
+  //\r
   if (MemoryType < 0) {\r
 \r
     for (Link = mPoolHeadList.ForwardLink; Link != &mPoolHeadList; Link = Link->ForwardLink) {\r