IntelFsp2Pkg: Support FSP Dispatch mode

REF: https://bugzilla.tianocore.org/show_bug.cgi?id=1241

Add support for both API (original mode) and DISPATCH mode:
1. Add FspMode field from reserved byte of Global
   Data Structure to tell which mode is selected by boot
   loader. If boot loader invoking FSP-M API this field
   will remain as default 0 (API mode), otherwise platform
   FSP should set this field to 1 (Dispatch mode) when
   initializing Global Data Structure.
2. gFspInApiModePpiGuid will be instaled when FSP running in API
   mode and modules only for API mode should have this in depex.
3. If it is DISPATCH mode, FSP will return to PEI dispatcher,
   not directly return to boot loader.
4. DISPATCH mode supports DXE NotifyPhase drivers so FSP
   will not wait for PEI NotifyPhase callbacks, instead it
   will install gFspReadyForNotifyPhasePpiGuid PPI for
   platform to complete late initialization before transferring
   to DXE.

Test: Verified FSP API and DISPATCH modes on 2 internal
      platforms and both boot successfully.

Cc: Jiewen Yao <Jiewen.yao@intel.com>
Cc: Desimone Nathaniel L <nathaniel.l.desimone@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Chasel Chiu <chasel.chiu@intel.com>
Reviewed-by: Jiewen Yao <Jiewen.yao@intel.com>

1 files changed, 6 insertions, 2 deletions

diff --git a/IntelFsp2Pkg/Include/FspGlobalData.h b/IntelFsp2Pkg/Include/FspGlobalData.h
index 7de26606a7..2a03129f4a 100644
--- a/IntelFsp2Pkg/Include/FspGlobalData.h
+++ b/IntelFsp2Pkg/Include/FspGlobalData.h
@@ -1,6 +1,6 @@
 /** @file

 

-  Copyright (c) 2014 - 2016, Intel Corporation. All rights reserved.<BR>

+  Copyright (c) 2014 - 2018, 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

@@ -16,6 +16,9 @@
 

 #include <FspEas.h>

 

+#define FSP_IN_API_MODE      0

+#define FSP_IN_DISPATCH_MODE 1

+

 #pragma pack(1)

 

 typedef enum {

@@ -54,7 +57,8 @@ typedef struct  {
    VOID               *MemoryInitUpdPtr;

    VOID               *SiliconInitUpdPtr;

    UINT8              ApiIdx;

-   UINT8              Reserved3[31];

+   UINT8              FspMode; // 0: FSP in API mode; 1: FSP in DISPATCH mode

+   UINT8              Reserved3[30];

    UINT32             PerfSig;

    UINT16             PerfLen;

    UINT16             Reserved4;