MdeModulePkg/DebugAgentLibNull: Indicate SMM Debug Agent support or not

This patch is to use the Context to indicate SMM Debug Agent support or
not if InitFlag is DEBUG_AGENT_INIT_SMM. Context must point to a
BOOLEAN if it's not NULL.

Cc: Ray Ni <ray.ni@intel.com>
Cc: Liming Gao <gaoliming@byosoft.com.cn>
Signed-off-by: Jiaxin Wu <jiaxin.wu@intel.com>
Reviewed-by: Ray Ni <ray.ni@Intel.com>

1 files changed, 12 insertions, 0 deletions

diff --git a/MdeModulePkg/Library/DebugAgentLibNull/DebugAgentLibNull.c b/MdeModulePkg/Library/DebugAgentLibNull/DebugAgentLibNull.c
index 8e70705eb6..27ba486afa 100644
--- a/MdeModulePkg/Library/DebugAgentLibNull/DebugAgentLibNull.c
+++ b/MdeModulePkg/Library/DebugAgentLibNull/DebugAgentLibNull.c
@@ -24,6 +24,9 @@
   If Function() is NULL, Debug Agent Library instance will return after setup debug

   environment.

 

+  If InitFlag is DEBUG_AGENT_INIT_SMM, Context must point to a BOOLEAN if it's not

+  NULL, which indicates SMM Debug Agent supported or not.

+

   @param[in] InitFlag     Init flag is used to decide the initialize process.

   @param[in] Context      Context needed according to InitFlag; it was optional.

   @param[in] Function     Continue function called by debug agent library; it was

@@ -38,6 +41,15 @@ InitializeDebugAgent (
   IN DEBUG_AGENT_CONTINUE  Function  OPTIONAL

   )

 {

+  switch (InitFlag) {

+    case DEBUG_AGENT_INIT_SMM:

+      if (Context != NULL) {

+        *(BOOLEAN *)Context = FALSE;

+      }

+

+      return;

+  }

+

   if (Function != NULL) {

     Function (Context);

   }