1 files changed, 19 insertions, 0 deletions
diff --git a/MdePkg/Include/Library/HobLib.h b/MdePkg/Include/Library/HobLib.h
index d17de0b35e..dcb4080d48 100644
--- a/MdePkg/Include/Library/HobLib.h
+++ b/MdePkg/Include/Library/HobLib.h
@@ -416,6 +416,25 @@ BuildMemoryAllocationHob (
   );
 
 /**
+  Builds an UEFI Capsule HOB.
+
+  This function builds an UEFI Capsule HOB.
+  It can only be invoked during PEI phase;
+  for DXE phase, it will ASSERT() since PEI HOB is read-only for DXE phase.
+  If there is no additional space for HOB creation, then ASSERT().
+
+  @param  BaseAddress   The physical memory-mapped base address of an UEFI capsule.
+  @param  Length        The length of the contiguous memory in bytes.
+
+**/
+VOID
+EFIAPI
+BuildCapsuleHob (
+  IN EFI_PHYSICAL_ADDRESS        BaseAddress,
+  IN UINT64                      Length
+  );
+
+/**
   Returns the type of a HOB.
 
   This macro returns the HobType field from the HOB header for the