MdeModulePkg MemoryProfile.h:two bytes of Reserved[4] as ActionStringOffset

At 94092aa60341a3e4b1e1ea7c362781b8404ac538, we extended
MEMORY_PROFILE_ALLOC_INFO to add ActionStringOffset and
Reserved2[6] fields, that was not aware the Reserved[4]
field can be reused to have better memory profile database
size efficiency.

With the patch, PcdMemoryProfilePropertyMask|0x3 and
PcdMemoryProfileMemoryType|0xffff, the memory profile
database size can be reduced as below on my sample platform.

UefiMemoryProfileSize - 0x1597A8 -> UefiMemoryProfileSize - 0x12AB28
SmramProfileSize - 0xCF68 -> SmramProfileSize - 0xB8E8

Cc: Jiewen Yao <jiewen.yao@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Star Zeng <star.zeng@intel.com>
Reviewed-by: Jiewen Yao <jiewen.yao@intel.com>

1 files changed, 2 insertions, 3 deletions

diff --git a/MdeModulePkg/Include/Guid/MemoryProfile.h b/MdeModulePkg/Include/Guid/MemoryProfile.h
index 38a64945e3..777f950db7 100644
--- a/MdeModulePkg/Include/Guid/MemoryProfile.h
+++ b/MdeModulePkg/Include/Guid/MemoryProfile.h
@@ -146,13 +146,12 @@ typedef struct {
   MEMORY_PROFILE_COMMON_HEADER  Header;

   PHYSICAL_ADDRESS              CallerAddress;

   UINT32                        SequenceId;

-  UINT8                         Reserved[4];

+  UINT8                         Reserved[2];

+  UINT16                        ActionStringOffset;

   MEMORY_PROFILE_ACTION         Action;

   EFI_MEMORY_TYPE               MemoryType;

   PHYSICAL_ADDRESS              Buffer;

   UINT64                        Size;

-  UINT16                        ActionStringOffset;

-  UINT8                         Reserved2[6];

 //CHAR8                         ActionString[];

 } MEMORY_PROFILE_ALLOC_INFO;