REF: https://github.com/tianocore/tianocore.github.io/wiki/
UEFI-Capsule-on-Disk-Introducation

If Capsule On Disk mode, call Capsule On Disk Load PPI to load
capsules. When it fails, still goes to Firmware Update boot path.
BDS will clear corresponding indicator and reboot later on.

Cc: Jian J Wang <jian.j.w...@intel.com>
Cc: Hao A Wu <hao.a...@intel.com>
Cc: Chao B Zhang <chao.b.zh...@intel.com>
Signed-off-by: Wei6 Xu <wei6...@intel.com>
---
 MdeModulePkg/Core/DxeIplPeim/DxeIpl.h   |  3 ++-
 MdeModulePkg/Core/DxeIplPeim/DxeIpl.inf | 20 +++++++++++---------
 MdeModulePkg/Core/DxeIplPeim/DxeLoad.c  | 30 +++++++++++++++++++++++++++++-
 3 files changed, 42 insertions(+), 11 deletions(-)

diff --git a/MdeModulePkg/Core/DxeIplPeim/DxeIpl.h 
b/MdeModulePkg/Core/DxeIplPeim/DxeIpl.h
index 063fefb414..90b5b5b211 100644
--- a/MdeModulePkg/Core/DxeIplPeim/DxeIpl.h
+++ b/MdeModulePkg/Core/DxeIplPeim/DxeIpl.h
@@ -1,10 +1,10 @@
 /** @file
   Master header file for DxeIpl PEIM. All source files in this module should
   include this file for common definitions.
 
-Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
+Copyright (c) 2006 - 2019, Intel Corporation. All rights reserved.<BR>
 SPDX-License-Identifier: BSD-2-Clause-Patent
 
 **/
 
 #ifndef __PEI_DXEIPL_H__
@@ -19,10 +19,11 @@ SPDX-License-Identifier: BSD-2-Clause-Patent
 #include <Ppi/FirmwareVolumeInfo.h>
 #include <Ppi/GuidedSectionExtraction.h>
 #include <Ppi/LoadFile.h>
 #include <Ppi/S3Resume2.h>
 #include <Ppi/RecoveryModule.h>
+#include <Ppi/CapsuleOnDisk.h>
 #include <Ppi/VectorHandoffInfo.h>
 
 #include <Guid/MemoryTypeInformation.h>
 #include <Guid/MemoryAllocationHob.h>
 #include <Guid/FirmwareFileSystem2.h>
diff --git a/MdeModulePkg/Core/DxeIplPeim/DxeIpl.inf 
b/MdeModulePkg/Core/DxeIplPeim/DxeIpl.inf
index 62bb3f3077..abc3217b01 100644
--- a/MdeModulePkg/Core/DxeIplPeim/DxeIpl.inf
+++ b/MdeModulePkg/Core/DxeIplPeim/DxeIpl.inf
@@ -3,11 +3,11 @@
 #
 #  This module produces a special PPI named the DXE Initial Program Load (IPL)
 #  PPI to discover and dispatch the DXE Foundation and components that are
 #  needed to run the DXE Foundation.
 #
-#  Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
+#  Copyright (c) 2006 - 2019, Intel Corporation. All rights reserved.<BR>
 #  Copyright (c) 2017, AMD Incorporated. All rights reserved.<BR>
 #
 #  SPDX-License-Identifier: BSD-2-Clause-Patent
 #
 ##
@@ -74,21 +74,23 @@
 
 [LibraryClasses.ARM, LibraryClasses.AARCH64]
   ArmMmuLib
 
 [Ppis]
-  gEfiDxeIplPpiGuid                 ## PRODUCES
-  gEfiPeiDecompressPpiGuid          ## PRODUCES
-  gEfiEndOfPeiSignalPpiGuid         ## SOMETIMES_PRODUCES # Not produced on S3 
boot path
-  gEfiPeiReadOnlyVariable2PpiGuid   ## SOMETIMES_CONSUMES
-  gEfiPeiLoadFilePpiGuid            ## SOMETIMES_CONSUMES
-  gEfiPeiS3Resume2PpiGuid           ## SOMETIMES_CONSUMES # Consumed on S3 
boot path
-  gEfiPeiRecoveryModulePpiGuid      ## SOMETIMES_CONSUMES # Consumed on 
recovery boot path
+  gEfiDxeIplPpiGuid                      ## PRODUCES
+  gEfiPeiDecompressPpiGuid               ## PRODUCES
+  gEfiEndOfPeiSignalPpiGuid              ## SOMETIMES_PRODUCES # Not produced 
on S3 boot path
+  gEfiPeiReadOnlyVariable2PpiGuid        ## SOMETIMES_CONSUMES
+  gEfiPeiLoadFilePpiGuid                 ## SOMETIMES_CONSUMES
+  gEfiPeiS3Resume2PpiGuid                ## SOMETIMES_CONSUMES # Consumed on 
S3 boot path
+  gEfiPeiRecoveryModulePpiGuid           ## SOMETIMES_CONSUMES # Consumed on 
recovery boot path
   ## SOMETIMES_CONSUMES
   ## UNDEFINED # HOB
   gEfiVectorHandoffInfoPpiGuid
-  gEfiPeiMemoryDiscoveredPpiGuid    ## SOMETIMES_CONSUMES
+  gEfiPeiMemoryDiscoveredPpiGuid         ## SOMETIMES_CONSUMES
+  gEdkiiPeiBootInCapsuleOnDiskModePpiGuid  ## SOMETIMES_CONSUMES
+  gEdkiiPeiCapsuleOnDiskPpiGuid            ## SOMETIMES_CONSUMES # Consumed on 
firmware update boot path
 
 [Guids]
   ## SOMETIMES_CONSUMES ## Variable:L"MemoryTypeInformation"
   ## SOMETIMES_PRODUCES ## HOB
   gEfiMemoryTypeInformationGuid
diff --git a/MdeModulePkg/Core/DxeIplPeim/DxeLoad.c 
b/MdeModulePkg/Core/DxeIplPeim/DxeLoad.c
index c6e5b83309..d48028cea0 100644
--- a/MdeModulePkg/Core/DxeIplPeim/DxeLoad.c
+++ b/MdeModulePkg/Core/DxeIplPeim/DxeLoad.c
@@ -1,11 +1,11 @@
 /** @file
   Last PEIM.
   Responsibility of this module is to load the DXE Core from a Firmware Volume.
 
 Copyright (c) 2016 HP Development Company, L.P.
-Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
+Copyright (c) 2006 - 2019, Intel Corporation. All rights reserved.<BR>
 SPDX-License-Identifier: BSD-2-Clause-Patent
 
 **/
 
 #include "DxeIpl.h"
@@ -263,11 +263,13 @@ DxeLoadCore (
   UINTN                                     Instance;
   UINT32                                    AuthenticationState;
   UINTN                                     DataSize;
   EFI_PEI_S3_RESUME2_PPI                    *S3Resume;
   EFI_PEI_RECOVERY_MODULE_PPI               *PeiRecovery;
+  EDKII_PEI_CAPSULE_ON_DISK_PPI             *PeiCapsuleOnDisk;
   EFI_MEMORY_TYPE_INFORMATION               MemoryData[EfiMaxMemoryType + 1];
+  VOID                                      *CapsuleOnDiskModePpi;
 
   //
   // if in S3 Resume, restore configure
   //
   BootMode = GetBootModeHob ();
@@ -328,10 +330,36 @@ DxeLoadCore (
     }
     REPORT_STATUS_CODE (EFI_PROGRESS_CODE, (EFI_SOFTWARE_PEI_MODULE | 
EFI_SW_PEI_PC_CAPSULE_START));
     //
     // Now should have a HOB with the DXE core
     //
+  } else if (BootMode == BOOT_ON_FLASH_UPDATE) {
+    //
+    // If Capsule On Disk mode, call storage stack to read Capsule Relocation 
file
+    // IoMmmu is highly recommmended to enable before reading
+    //
+    Status = PeiServicesLocatePpi (
+               &gEdkiiPeiBootInCapsuleOnDiskModePpiGuid,
+               0,
+               NULL,
+               &CapsuleOnDiskModePpi
+               );
+    if (!EFI_ERROR(Status)) {
+      Status = PeiServicesLocatePpi (
+                 &gEdkiiPeiCapsuleOnDiskPpiGuid,
+                 0,
+                 NULL,
+                 (VOID **) &PeiCapsuleOnDisk
+                 );
+
+      //
+      // Whether failed, still goes to Firmware Update boot path. BDS will 
clear corresponding indicator and reboot later on
+      //
+      if (!EFI_ERROR (Status)) {
+        Status = PeiCapsuleOnDisk->LoadCapsuleOnDisk (PeiServices, 
PeiCapsuleOnDisk);
+      }
+    }
   }
 
   if (GetFirstGuidHob ((CONST EFI_GUID *)&gEfiMemoryTypeInformationGuid) == 
NULL) {
     //
     // Don't build GuidHob if GuidHob has been installed.
-- 
2.16.2.windows.1


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