[edk2-devel][PATCH v4 5/8] IntelFsp2Pkg: SecFspSecPlatformLibNull support for X64

["Kuo, Ted" <ted.kuo@intel.com>]

REF:https://bugzilla.tianocore.org/show_bug.cgi?id=3893
1.Added SecFspSecPlatformLibNull support for X64.
2.Added X64 support to IntelFsp2Pkg.dsc.

Cc: Chasel Chiu <chasel.chiu@intel.com>
Cc: Nate DeSimone <nathaniel.l.desimone@intel.com>
Cc: Star Zeng <star.zeng@intel.com>
Cc: Ashraf Ali S <ashraf.ali.s@intel.com>
Signed-off-by: Ted Kuo <ted.kuo@intel.com>
---
 IntelFsp2Pkg/IntelFsp2Pkg.dsc                      |  2 +-
 .../SecFspSecPlatformLibNull.inf                   |  6 +++-
 .../SecFspSecPlatformLibNull/X64/Long64.nasm       | 31 +++++++++++++++++
 .../SecFspSecPlatformLibNull/X64/SecCarInit.nasm   | 40 ++++++++++++++++++++++
 4 files changed, 77 insertions(+), 2 deletions(-)
 create mode 100644 IntelFsp2Pkg/Library/SecFspSecPlatformLibNull/X64/Long64.nasm
 create mode 100644 IntelFsp2Pkg/Library/SecFspSecPlatformLibNull/X64/SecCarInit.nasm

diff --git a/IntelFsp2Pkg/IntelFsp2Pkg.dsc b/IntelFsp2Pkg/IntelFsp2Pkg.dsc
index c1414f7e75..1284aa042c 100644
--- a/IntelFsp2Pkg/IntelFsp2Pkg.dsc
+++ b/IntelFsp2Pkg/IntelFsp2Pkg.dsc
@@ -12,7 +12,7 @@
   PLATFORM_VERSION               = 0.1
   DSC_SPECIFICATION              = 0x00010005
   OUTPUT_DIRECTORY               = Build/IntelFsp2Pkg
-  SUPPORTED_ARCHITECTURES        = IA32
+  SUPPORTED_ARCHITECTURES        = IA32|X64
   BUILD_TARGETS                  = DEBUG|RELEASE|NOOPT
   SKUID_IDENTIFIER               = DEFAULT
 
diff --git a/IntelFsp2Pkg/Library/SecFspSecPlatformLibNull/SecFspSecPlatformLibNull.inf b/IntelFsp2Pkg/Library/SecFspSecPlatformLibNull/SecFspSecPlatformLibNull.inf
index 42e7d83c32..ef859d5ea5 100644
--- a/IntelFsp2Pkg/Library/SecFspSecPlatformLibNull/SecFspSecPlatformLibNull.inf
+++ b/IntelFsp2Pkg/Library/SecFspSecPlatformLibNull/SecFspSecPlatformLibNull.inf
@@ -23,7 +23,7 @@
 #
 # The following information is for reference only and not required by the build tools.
 #
-#  VALID_ARCHITECTURES           = IA32
+#  VALID_ARCHITECTURES           = IA32 X64
 #
 
 ################################################################################
@@ -39,6 +39,10 @@
   Ia32/Flat32.nasm
   Ia32/SecCarInit.nasm
 
+[Sources.X64]
+  X64/Long64.nasm
+  X64/SecCarInit.nasm
+
 ################################################################################
 #
 # Package Dependency Section - list of Package files that are required for
diff --git a/IntelFsp2Pkg/Library/SecFspSecPlatformLibNull/X64/Long64.nasm b/IntelFsp2Pkg/Library/SecFspSecPlatformLibNull/X64/Long64.nasm
new file mode 100644
index 0000000000..836257f962
--- /dev/null
+++ b/IntelFsp2Pkg/Library/SecFspSecPlatformLibNull/X64/Long64.nasm
@@ -0,0 +1,31 @@
+;; @file
+;  This is the code that performs early platform initialization.
+;  It consumes the reset vector, configures the stack.
+;
+; Copyright (c) 2022, Intel Corporation. All rights reserved.<BR>
+; SPDX-License-Identifier: BSD-2-Clause-Patent
+;;
+
+;
+; Define assembler characteristics
+;
+
+extern   ASM_PFX(TempRamInitApi)
+
+SECTION .text
+
+%macro RET_RSI  0
+
+  movd    rsi, mm7                      ; restore RSI from MM7
+  jmp     rsi
+
+%endmacro
+
+;
+; Perform early platform initialization
+;
+global ASM_PFX(SecPlatformInit)
+ASM_PFX(SecPlatformInit):
+
+  RET_RSI
+
diff --git a/IntelFsp2Pkg/Library/SecFspSecPlatformLibNull/X64/SecCarInit.nasm b/IntelFsp2Pkg/Library/SecFspSecPlatformLibNull/X64/SecCarInit.nasm
new file mode 100644
index 0000000000..e64c77ed18
--- /dev/null
+++ b/IntelFsp2Pkg/Library/SecFspSecPlatformLibNull/X64/SecCarInit.nasm
@@ -0,0 +1,40 @@
+;; @file
+;  SEC CAR function
+;
+; Copyright (c) 2022, Intel Corporation. All rights reserved.<BR>
+; SPDX-License-Identifier: BSD-2-Clause-Patent
+;;
+
+;
+; Define assembler characteristics
+;
+
+%macro RET_RSI 0
+
+  movd    rsi, mm7                      ; move ReturnAddress from MM7 to RSI
+  jmp     rsi
+
+%endmacro
+
+SECTION .text
+
+;-----------------------------------------------------------------------------
+;
+;  Section:     SecCarInit
+;
+;  Description: This function initializes the Cache for Data, Stack, and Code
+;
+;-----------------------------------------------------------------------------
+global ASM_PFX(SecCarInit)
+ASM_PFX(SecCarInit):
+
+  ;
+  ; Set up CAR
+  ;
+
+  xor    rax, rax
+
+SecCarInitExit:
+
+  RET_RSI
+
-- 
2.16.2.windows.1