This revision can only work with Intel(c) UDK Debugger Tool version 1.3 or greater. Detailed change log is as below:

1. Add DebugAgentPei driver to initialize Debug Agent in PEI phase.
   Add DebugAgentDxe driver to initialize Debug Agent in DXE phase.
   DebugAgentDxe driver could be loaded and unloaded in shell.
2. Update the SourceLevelDebugPkg so that the debug agent can be initialized in any phase: SEC, PEI or DXE.
3. Add an enhanced retry algorithm that provides a robust connection when data loss happens in the debug channel.
4. Clear DR7 register in exception handler.
5. Set the default serial port parameter to 0 instead of PCDs.
6. Build pointer of Mailbox in HOB instead of Mailbox itself, since HOB may be moved at DXE entry point function.
7. Raise TPL to prevent recursion from EFI timer interrupts in SerialIo.c.
8. Add one spin lock for accessing Mailbox when MP debugging supported.
9. Use more non-NULL library instances in SourceLevelDebugPkg DSC file, thus DebugAgentDxe.efi built from SourceLevelDebugPkg could work in shell.
10.Separate all operations about IDT table entry from SecDebugAgentLib.c into DebugAgent\DebugAgentCommon's arch sub-directory.
11.Enhance Debug Agent to avoid breaking by hardware SMI during DXE debugging phase.
12.Add supporting on mode switch code debugging.
13.Remove reset Host Controller operation in DebugCommunicationLibUsb.c to avoid impacting EDKII usb stack.
14.Fix debug timer interrupt missing issue after back from legacy code.

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


git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@14083 6f19259b-4bc3-4df7-8a09-765794883524

1 files changed, 45 insertions, 0 deletions

diff --git a/SourceLevelDebugPkg/DebugAgentPei/DebugAgentPei.c b/SourceLevelDebugPkg/DebugAgentPei/DebugAgentPei.c
new file mode 100644
index 0000000000..df0ac87b42
--- /dev/null
+++ b/SourceLevelDebugPkg/DebugAgentPei/DebugAgentPei.c
@@ -0,0 +1,45 @@
+/** @file

+  Initialize Debug Agent in PEI by invoking Debug Agent Library.

+

+Copyright (c) 2013, Intel Corporation. All rights reserved.<BR>

+This program and the accompanying materials                          

+are licensed and made available under the terms and conditions of the BSD License         

+which accompanies this distribution.  The full text of the license may be found at        

+http://opensource.org/licenses/bsd-license.php                                            

+                                                                                          

+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,                     

+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.             

+

+**/

+

+#include <PiPei.h>

+

+#include <Library/DebugAgentLib.h>

+

+/**

+  The Entry Point for Debug Agent PEI driver.

+

+  It will invoke Debug Agent Library to enable source debugging feature in PEI phase.

+

+  This function is the Entry point of the CPU I/O PEIM which installs CpuIoPpi.

+

+  @param[in]  FileHandle   Pointer to image file handle.

+  @param[in]  PeiServices  Pointer to PEI Services Table   

+

+  @retval EFI_SUCCESS    Debug Agent successfully initialized.

+  @retval other          Some error occurs when initialzed Debug Agent.

+

+**/

+EFI_STATUS

+EFIAPI

+DebugAgentPeiInitialize (

+  IN EFI_PEI_FILE_HANDLE     FileHandle,

+  IN CONST EFI_PEI_SERVICES  **PeiServices

+  )

+{

+  EFI_STATUS                 Status;

+

+  InitializeDebugAgent (DEBUG_AGENT_INIT_PEI, &Status, NULL);

+

+  return Status;

+}