1 files changed, 26 insertions, 0 deletions
diff --git a/MdePkg/Library/BaseLib/Ia32/SetJump.c b/MdePkg/Library/BaseLib/Ia32/SetJump.c
index 5d8692a619..67d0571ecf 100644
--- a/MdePkg/Library/BaseLib/Ia32/SetJump.c
+++ b/MdePkg/Library/BaseLib/Ia32/SetJump.c
@@ -17,13 +17,39 @@
 //
 #include <BaseLibInternals.h>
 
+/**
+  Worker function that checks ASSERT condition for JumpBuffer
 
+  Checks ASSERT condition for JumpBuffer.
+
+  If JumpBuffer is NULL, then ASSERT().
+  For IPF CPUs, if JumpBuffer is not aligned on a 16-byte boundary, then ASSERT().
+
+  @param  JumpBuffer    A pointer to CPU context buffer.
+
+**/
 VOID
 EFIAPI
 InternalAssertJumpBuffer (
   IN      BASE_LIBRARY_JUMP_BUFFER  *JumpBuffer
   );
 
+/**
+  Saves the current CPU context that can be restored with a call to LongJump()
+  and returns 0.
+
+  Saves the current CPU context in the buffer specified by JumpBuffer and
+  returns 0. The initial call to SetJump() must always return 0. Subsequent
+  calls to LongJump() cause a non-zero value to be returned by SetJump().
+
+  If JumpBuffer is NULL, then ASSERT().
+  For IPF CPUs, if JumpBuffer is not aligned on a 16-byte boundary, then ASSERT().
+
+  @param  JumpBuffer  A pointer to CPU context buffer.
+
+  @retval 0 Indicates a return from SetJump().
+
+**/
 _declspec (naked)
 UINTN
 EFIAPI