Add InitFlag member in DEBUG_AGENT_PHASE2_CONTEXT to pass into InitializeDebugAgentPhase2().

Signed-off-by: Jeff Fan <jeff.fan@intel.com>
Reviewed-by: Ruiyu Ni <ruiyu.ni@intel.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@14929 6f19259b-4bc3-4df7-8a09-765794883524

2 files changed, 34 insertions, 25 deletions

diff --git a/SourceLevelDebugPkg/Library/DebugAgent/SecPeiDebugAgent/SecPeiDebugAgentLib.c b/SourceLevelDebugPkg/Library/DebugAgent/SecPeiDebugAgent/SecPeiDebugAgentLib.c
index 0388807697..a3f91d3358 100644
--- a/SourceLevelDebugPkg/Library/DebugAgent/SecPeiDebugAgent/SecPeiDebugAgentLib.c
+++ b/SourceLevelDebugPkg/Library/DebugAgent/SecPeiDebugAgent/SecPeiDebugAgentLib.c
@@ -402,6 +402,7 @@ InitializeDebugAgent (
 

     InitializeDebugTimer ();

 

+    Phase2Context.InitFlag = InitFlag;

     Phase2Context.Context  = Context;

     Phase2Context.Function = Function;

     DebugPortInitialize ((VOID *) &Phase2Context, InitializeDebugAgentPhase2);

@@ -487,14 +488,13 @@ InitializeDebugAgent (
     // Update IDT entry to save the location saved mailbox pointer

     //

     SetLocationSavedMailboxPointerInIdtEntry (MailboxLocationPointer);

-    //

-    // Enable CPU interrupts so debug timer interrupts can be delivered

-    //

-    EnableInterrupts ();

-

     break;

 

   case DEBUG_AGENT_INIT_PEI:

+    if (Context == NULL) {

+      DEBUG ((EFI_D_ERROR, "DebugAgent: Input parameter Context cannot be NULL!\n"));

+      CpuDeadLoop ();

+    }

     //

     // Check if Debug Agent has initialized before

     //

@@ -550,6 +550,7 @@ InitializeDebugAgent (
       SetDebugFlag (DEBUG_AGENT_FLAG_CHECK_MAILBOX_IN_HOB, 1);

     }

 

+    Phase2Context.InitFlag = InitFlag;

     Phase2Context.Context  = Context;

     Phase2Context.Function = Function;

     DebugPortInitialize ((VOID *) &Phase2Context, InitializeDebugAgentPhase2);

@@ -598,6 +599,9 @@ InitializeDebugAgent (
     break;

   }

 

+  //

+  // Enable CPU interrupts so debug timer interrupts can be delivered

+  //

   EnableInterrupts ();

 

   //

@@ -606,6 +610,12 @@ InitializeDebugAgent (
   if (Function != NULL) {

     Function (Context);

   }

+  //

+  // Set return status for DEBUG_AGENT_INIT_PEI

+  //

+  if (InitFlag == DEBUG_AGENT_INIT_PEI) {

+    *(EFI_STATUS *)Context = EFI_SUCCESS;

+  }

 }

 

 /**

@@ -635,7 +645,7 @@ InitializeDebugAgentPhase2 (
   MailboxLocation = GetLocationSavedMailboxPointerInIdtEntry ();

   Mailbox = (DEBUG_AGENT_MAILBOX *)(UINTN)(*MailboxLocation);

   BufferSize = PcdGet16(PcdDebugPortHandleBufferSize);

-  if (Phase2Context->Function == NULL && DebugPortHandle != NULL && BufferSize != 0) {

+  if (Phase2Context->InitFlag == DEBUG_AGENT_INIT_PEI) {

     NewDebugPortHandle = (UINT64)(UINTN)AllocateCopyPool (BufferSize, DebugPortHandle);

   } else {

     NewDebugPortHandle = (UINT64)(UINTN)DebugPortHandle;

@@ -647,25 +657,23 @@ InitializeDebugAgentPhase2 (
   //

   TriggerSoftInterrupt (SYSTEM_RESET_SIGNATURE);

 

-  //

-  // If Temporary RAM region is below 128 MB, then send message to 

-  // host to disable low memory filtering.

-  //

-  SecCoreData = (EFI_SEC_PEI_HAND_OFF *)Phase2Context->Context;

-  if ((UINTN)SecCoreData->TemporaryRamBase < BASE_128MB && IsHostAttached ()) {

-    SetDebugFlag (DEBUG_AGENT_FLAG_MEMORY_READY, 1);

-    TriggerSoftInterrupt (MEMORY_READY_SIGNATURE);

-  }

-

-  //

-  // Enable CPU interrupts so debug timer interrupts can be delivered

-  //

-  EnableInterrupts ();

-

-  //

-  // Call continuation function if it is not NULL.

-  //

-  if (Phase2Context->Function != NULL) {

+  if (Phase2Context->InitFlag == DEBUG_AGENT_INIT_PREMEM_SEC) {

+    //

+    // If Temporary RAM region is below 128 MB, then send message to 

+    // host to disable low memory filtering.

+    //

+    SecCoreData = (EFI_SEC_PEI_HAND_OFF *)Phase2Context->Context;

+    if ((UINTN)SecCoreData->TemporaryRamBase < BASE_128MB && IsHostAttached ()) {

+      SetDebugFlag (DEBUG_AGENT_FLAG_MEMORY_READY, 1);

+      TriggerSoftInterrupt (MEMORY_READY_SIGNATURE);

+    }

+    //

+    // Enable CPU interrupts so debug timer interrupts can be delivered

+    //

+    EnableInterrupts ();

+    //

+    // Call continuation function if it is not NULL.

+    //

     Phase2Context->Function (Phase2Context->Context);

   }

 }

diff --git a/SourceLevelDebugPkg/Library/DebugAgent/SecPeiDebugAgent/SecPeiDebugAgentLib.h b/SourceLevelDebugPkg/Library/DebugAgent/SecPeiDebugAgent/SecPeiDebugAgentLib.h
index 68bfbf7cab..a0687fa173 100644
--- a/SourceLevelDebugPkg/Library/DebugAgent/SecPeiDebugAgent/SecPeiDebugAgentLib.h
+++ b/SourceLevelDebugPkg/Library/DebugAgent/SecPeiDebugAgent/SecPeiDebugAgentLib.h
@@ -22,6 +22,7 @@
 #include "DebugAgent.h"

 

 typedef struct {

+  UINT32                  InitFlag;

   VOID                    *Context;

   DEBUG_AGENT_CONTINUE    Function;

 } DEBUG_AGENT_PHASE2_CONTEXT;