* [edk2-devel][PATCH 1/5] IntelFsp2Pkg: X64 compatible changes to support PEI in 64bit
2022-04-04 4:13 [edk2-devel][PATCH 0/5] To support PEI 64bit in IntelFsp2Pkg Kuo, Ted
@ 2022-04-04 4:13 ` Kuo, Ted
2022-04-04 4:13 ` [edk2-devel][PATCH 2/5] IntelFsp2Pkg: Add FSPx_ARCH2_UPD support for X64 Kuo, Ted
` (3 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: Kuo, Ted @ 2022-04-04 4:13 UTC (permalink / raw)
To: devel; +Cc: Chasel Chiu, Nate DeSimone, Star Zeng, Ashraf Ali S
REF:https://bugzilla.tianocore.org/show_bug.cgi?id=3893
1.Added EFIAPI to FspNotifyPhasePeimEntryPoint.
2.Changed AsmReadEsp to AsmReadStackPointer.
3.Changed the type of the return value of AsmReadStackPointer
from UINT32 to UINTN.
4.Changed the type of TemporaryMemoryBase, PermenentMemoryBase
and BootLoaderStack from UINT32 to UINTN.
5.Some type casting to pointers are UINT32. Changed them to
UINTN to accommodate both IA32 and X64.
6.Corrected some typos.
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/FspNotifyPhase/FspNotifyPhasePeim.c | 1 +
IntelFsp2Pkg/FspSecCore/Ia32/ReadEsp.nasm | 8 ++++----
IntelFsp2Pkg/FspSecCore/Ia32/Stack.nasm | 10 +++++-----
IntelFsp2Pkg/FspSecCore/SecFsp.c | 8 ++++----
IntelFsp2Pkg/FspSecCore/SecFsp.h | 2 +-
IntelFsp2Pkg/FspSecCore/SecFspApiChk.c | 8 ++++----
IntelFsp2Pkg/FspSecCore/SecMain.c | 8 ++++----
IntelFsp2Pkg/FspSecCore/SecMain.h | 10 +++++-----
IntelFsp2Pkg/Library/SecFspSecPlatformLibNull/Ia32/Flat32.nasm | 2 +-
9 files changed, 29 insertions(+), 28 deletions(-)
diff --git a/IntelFsp2Pkg/FspNotifyPhase/FspNotifyPhasePeim.c b/IntelFsp2Pkg/FspNotifyPhase/FspNotifyPhasePeim.c
index 88f5540fef..66d39cc70c 100644
--- a/IntelFsp2Pkg/FspNotifyPhase/FspNotifyPhasePeim.c
+++ b/IntelFsp2Pkg/FspNotifyPhase/FspNotifyPhasePeim.c
@@ -112,6 +112,7 @@ WaitForNotify (
@retval EFI_OUT_OF_RESOURCES Insufficient resources to create database
**/
EFI_STATUS
+EFIAPI
FspNotifyPhasePeimEntryPoint (
IN EFI_PEI_FILE_HANDLE FileHandle,
IN CONST EFI_PEI_SERVICES **PeiServices
diff --git a/IntelFsp2Pkg/FspSecCore/Ia32/ReadEsp.nasm b/IntelFsp2Pkg/FspSecCore/Ia32/ReadEsp.nasm
index 8046b43745..d40dad5a52 100644
--- a/IntelFsp2Pkg/FspSecCore/Ia32/ReadEsp.nasm
+++ b/IntelFsp2Pkg/FspSecCore/Ia32/ReadEsp.nasm
@@ -9,14 +9,14 @@
SECTION .text
;------------------------------------------------------------------------------
-; UINT32
+; UINTN
; EFIAPI
-; AsmReadEsp (
+; AsmReadStackPointer (
; VOID
; );
;------------------------------------------------------------------------------
-global ASM_PFX(AsmReadEsp)
-ASM_PFX(AsmReadEsp):
+global ASM_PFX(AsmReadStackPointer)
+ASM_PFX(AsmReadStackPointer):
mov eax, esp
ret
diff --git a/IntelFsp2Pkg/FspSecCore/Ia32/Stack.nasm b/IntelFsp2Pkg/FspSecCore/Ia32/Stack.nasm
index 5a7e27c240..ce20639890 100644
--- a/IntelFsp2Pkg/FspSecCore/Ia32/Stack.nasm
+++ b/IntelFsp2Pkg/FspSecCore/Ia32/Stack.nasm
@@ -9,20 +9,20 @@
;
;------------------------------------------------------------------------------
-SECTION .text
+ SECTION .text
;------------------------------------------------------------------------------
; VOID
; EFIAPI
; SecSwitchStack (
; UINT32 TemporaryMemoryBase,
-; UINT32 PermenentMemoryBase
+; UINT32 PermanentMemoryBase
; );
;------------------------------------------------------------------------------
global ASM_PFX(SecSwitchStack)
ASM_PFX(SecSwitchStack):
;
- ; Save three register: eax, ebx, ecx
+ ; Save four register: eax, ebx, ecx, edx
;
push eax
push ebx
@@ -55,7 +55,7 @@ ASM_PFX(SecSwitchStack):
mov dword [eax + 12], edx
mov edx, dword [esp + 16] ; Update this function's return address into permanent memory
mov dword [eax + 16], edx
- mov esp, eax ; From now, esp is pointed to permanent memory
+ mov esp, eax ; From now, esp is pointed to permanent memory
;
; Fixup the ebp point to permanent memory
@@ -63,7 +63,7 @@ ASM_PFX(SecSwitchStack):
mov eax, ebp
sub eax, ebx
add eax, ecx
- mov ebp, eax ; From now, ebp is pointed to permanent memory
+ mov ebp, eax ; From now, ebp is pointed to permanent memory
pop edx
pop ecx
diff --git a/IntelFsp2Pkg/FspSecCore/SecFsp.c b/IntelFsp2Pkg/FspSecCore/SecFsp.c
index 68e588dd41..85fbc7664c 100644
--- a/IntelFsp2Pkg/FspSecCore/SecFsp.c
+++ b/IntelFsp2Pkg/FspSecCore/SecFsp.c
@@ -26,7 +26,7 @@ FspGetExceptionHandler (
IA32_IDT_GATE_DESCRIPTOR *IdtGateDescriptor;
FSP_INFO_HEADER *FspInfoHeader;
- FspInfoHeader = (FSP_INFO_HEADER *)AsmGetFspInfoHeader ();
+ FspInfoHeader = (FSP_INFO_HEADER *)(UINTN)AsmGetFspInfoHeader ();
ExceptionHandler = IdtEntryTemplate;
IdtGateDescriptor = (IA32_IDT_GATE_DESCRIPTOR *)&ExceptionHandler;
Entry = (IdtGateDescriptor->Bits.OffsetHigh << 16) | IdtGateDescriptor->Bits.OffsetLow;
@@ -115,7 +115,7 @@ SecGetPlatformData (
VOID
FspGlobalDataInit (
IN OUT FSP_GLOBAL_DATA *PeiFspData,
- IN UINT32 BootLoaderStack,
+ IN UINTN BootLoaderStack,
IN UINT8 ApiIdx
)
{
@@ -141,7 +141,7 @@ FspGlobalDataInit (
// Get FSP Header offset
// It may have multiple FVs, so look into the last one for FSP header
//
- PeiFspData->FspInfoHeader = (FSP_INFO_HEADER *)AsmGetFspInfoHeader ();
+ PeiFspData->FspInfoHeader = (FSP_INFO_HEADER *)(UINTN)AsmGetFspInfoHeader ();
SecGetPlatformData (PeiFspData);
//
@@ -154,7 +154,7 @@ FspGlobalDataInit (
//
FspmUpdDataPtr = (VOID *)GetFspApiParameter ();
if (FspmUpdDataPtr == NULL) {
- FspmUpdDataPtr = (VOID *)(PeiFspData->FspInfoHeader->ImageBase + PeiFspData->FspInfoHeader->CfgRegionOffset);
+ FspmUpdDataPtr = (VOID *)(UINTN)(PeiFspData->FspInfoHeader->ImageBase + PeiFspData->FspInfoHeader->CfgRegionOffset);
}
SetFspUpdDataPointer (FspmUpdDataPtr);
diff --git a/IntelFsp2Pkg/FspSecCore/SecFsp.h b/IntelFsp2Pkg/FspSecCore/SecFsp.h
index 7c9be85fe0..7fb31c3f87 100644
--- a/IntelFsp2Pkg/FspSecCore/SecFsp.h
+++ b/IntelFsp2Pkg/FspSecCore/SecFsp.h
@@ -48,7 +48,7 @@ FspGetExceptionHandler (
VOID
FspGlobalDataInit (
IN OUT FSP_GLOBAL_DATA *PeiFspData,
- IN UINT32 BootLoaderStack,
+ IN UINTN BootLoaderStack,
IN UINT8 ApiIdx
);
diff --git a/IntelFsp2Pkg/FspSecCore/SecFspApiChk.c b/IntelFsp2Pkg/FspSecCore/SecFspApiChk.c
index 7d6ef11fe7..c57247bfaf 100644
--- a/IntelFsp2Pkg/FspSecCore/SecFspApiChk.c
+++ b/IntelFsp2Pkg/FspSecCore/SecFspApiChk.c
@@ -31,7 +31,7 @@ FspApiCallingCheck (
//
// NotifyPhase check
//
- if ((FspData == NULL) || ((UINT32)FspData == 0xFFFFFFFF)) {
+ if ((FspData == NULL) || ((UINTN)FspData == MAX_ADDRESS)) {
Status = EFI_UNSUPPORTED;
} else {
if (FspData->Signature != FSP_GLOBAL_DATA_SIGNATURE) {
@@ -42,7 +42,7 @@ FspApiCallingCheck (
//
// FspMemoryInit check
//
- if ((UINT32)FspData != 0xFFFFFFFF) {
+ if ((UINTN)FspData != 0xFFFFFFFF) {
Status = EFI_UNSUPPORTED;
} else if (EFI_ERROR (FspUpdSignatureCheck (ApiIdx, ApiParam))) {
Status = EFI_INVALID_PARAMETER;
@@ -51,7 +51,7 @@ FspApiCallingCheck (
//
// TempRamExit check
//
- if ((FspData == NULL) || ((UINT32)FspData == 0xFFFFFFFF)) {
+ if ((FspData == NULL) || ((UINTN)FspData == MAX_ADDRESS)) {
Status = EFI_UNSUPPORTED;
} else {
if (FspData->Signature != FSP_GLOBAL_DATA_SIGNATURE) {
@@ -62,7 +62,7 @@ FspApiCallingCheck (
//
// FspSiliconInit check
//
- if ((FspData == NULL) || ((UINT32)FspData == 0xFFFFFFFF)) {
+ if ((FspData == NULL) || ((UINTN)FspData == MAX_ADDRESS)) {
Status = EFI_UNSUPPORTED;
} else {
if (FspData->Signature != FSP_GLOBAL_DATA_SIGNATURE) {
diff --git a/IntelFsp2Pkg/FspSecCore/SecMain.c b/IntelFsp2Pkg/FspSecCore/SecMain.c
index d376fb8361..9e9332ffcd 100644
--- a/IntelFsp2Pkg/FspSecCore/SecMain.c
+++ b/IntelFsp2Pkg/FspSecCore/SecMain.c
@@ -54,7 +54,7 @@ SecStartup (
IN UINT32 TempRamBase,
IN VOID *BootFirmwareVolume,
IN PEI_CORE_ENTRY PeiCore,
- IN UINT32 BootLoaderStack,
+ IN UINTN BootLoaderStack,
IN UINT32 ApiIdx
)
{
@@ -233,7 +233,7 @@ SecTemporaryRamSupport (
GetFspGlobalDataPointer ()->OnSeparateStack = 1;
if (PcdGet8 (PcdFspHeapSizePercentage) == 0) {
- CurrentStack = AsmReadEsp ();
+ CurrentStack = AsmReadStackPointer ();
FspStackBase = (UINTN)GetFspEntryStack ();
StackSize = FspStackBase - CurrentStack;
@@ -292,8 +292,8 @@ SecTemporaryRamSupport (
// permanent memory.
//
SecSwitchStack (
- (UINT32)(UINTN)OldStack,
- (UINT32)(UINTN)NewStack
+ (UINTN)OldStack,
+ (UINTN)NewStack
);
return EFI_SUCCESS;
diff --git a/IntelFsp2Pkg/FspSecCore/SecMain.h b/IntelFsp2Pkg/FspSecCore/SecMain.h
index 7794255af1..3c60b15f01 100644
--- a/IntelFsp2Pkg/FspSecCore/SecMain.h
+++ b/IntelFsp2Pkg/FspSecCore/SecMain.h
@@ -51,8 +51,8 @@ typedef struct _SEC_IDT_TABLE {
VOID
EFIAPI
SecSwitchStack (
- IN UINT32 TemporaryMemoryBase,
- IN UINT32 PermenentMemoryBase
+ IN UINTN TemporaryMemoryBase,
+ IN UINTN PermenentMemoryBase
);
/**
@@ -104,7 +104,7 @@ SecStartup (
IN UINT32 TempRamBase,
IN VOID *BootFirmwareVolume,
IN PEI_CORE_ENTRY PeiCore,
- IN UINT32 BootLoaderStack,
+ IN UINTN BootLoaderStack,
IN UINT32 ApiIdx
);
@@ -127,9 +127,9 @@ ProcessLibraryConstructorList (
@return value of esp.
**/
-UINT32
+UINTN
EFIAPI
-AsmReadEsp (
+AsmReadStackPointer (
VOID
);
diff --git a/IntelFsp2Pkg/Library/SecFspSecPlatformLibNull/Ia32/Flat32.nasm b/IntelFsp2Pkg/Library/SecFspSecPlatformLibNull/Ia32/Flat32.nasm
index aef7f96d1d..7be570c4e5 100644
--- a/IntelFsp2Pkg/Library/SecFspSecPlatformLibNull/Ia32/Flat32.nasm
+++ b/IntelFsp2Pkg/Library/SecFspSecPlatformLibNull/Ia32/Flat32.nasm
@@ -16,7 +16,7 @@ SECTION .text
%macro RET_ESI 0
- movd esi, mm7 ; restore ESP from MM7
+ movd esi, mm7 ; restore EIP from MM7
jmp esi
%endmacro
--
2.16.2.windows.1
^ permalink raw reply related [flat|nested] 6+ messages in thread* [edk2-devel][PATCH 2/5] IntelFsp2Pkg: Add FSPx_ARCH2_UPD support for X64
2022-04-04 4:13 [edk2-devel][PATCH 0/5] To support PEI 64bit in IntelFsp2Pkg Kuo, Ted
2022-04-04 4:13 ` [edk2-devel][PATCH 1/5] IntelFsp2Pkg: X64 compatible changes to support PEI in 64bit Kuo, Ted
@ 2022-04-04 4:13 ` Kuo, Ted
2022-04-04 4:13 ` [edk2-devel][PATCH 3/5] IntelFsp2Pkg: Update FSP_GLOBAL_DATA and FSP_PLAT_DATA " Kuo, Ted
` (2 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: Kuo, Ted @ 2022-04-04 4:13 UTC (permalink / raw)
To: devel; +Cc: Chasel Chiu, Nate DeSimone, Star Zeng, Ashraf Ali S
REF:https://bugzilla.tianocore.org/show_bug.cgi?id=3893
Added FSPx_ARCH2_UPD structures which support both IA32 and X64.
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/FspSecCore/Ia32/FspApiEntryM.nasm | 29 ++++++
IntelFsp2Pkg/FspSecCore/Ia32/FspApiEntryT.nasm | 93 +++++++++++++++---
IntelFsp2Pkg/Include/FspEas/FspApi.h | 128 ++++++++++++++++++++++++-
IntelFsp2Pkg/Tools/GenCfgOpt.py | 2 +-
4 files changed, 234 insertions(+), 18 deletions(-)
diff --git a/IntelFsp2Pkg/FspSecCore/Ia32/FspApiEntryM.nasm b/IntelFsp2Pkg/FspSecCore/Ia32/FspApiEntryM.nasm
index e7261b41cd..2fe235a237 100644
--- a/IntelFsp2Pkg/FspSecCore/Ia32/FspApiEntryM.nasm
+++ b/IntelFsp2Pkg/FspSecCore/Ia32/FspApiEntryM.nasm
@@ -32,6 +32,25 @@ struc FSPM_UPD_COMMON
.size:
endstruc
+struc FSPM_UPD_COMMON2
+ ; FSP_UPD_HEADER {
+ .FspUpdHeader: resd 8
+ ; }
+ ; FSPM_ARCH2_UPD {
+ .Revision: resb 1
+ .Reserved: resb 3
+ .Length resd 1
+ .StackBase: resq 1
+ .StackSize: resq 1
+ .BootLoaderTolumSize: resd 1
+ .BootMode: resd 1
+ .FspEventHandler resq 1
+ .EnableMultiPhaseMemoryInit resb 1
+ .Reserved1: resb 23
+ ; }
+ .size:
+endstruc
+
;
; Following functions will be provided in C
;
@@ -124,12 +143,22 @@ ASM_PFX(FspApiCommonContinue):
pop eax
FspStackSetup:
+ mov ecx, [edx + FSPM_UPD_COMMON.Revision]
+ cmp ecx, 3
+ jae FspmUpdCommon2
+
;
; StackBase = temp memory base, StackSize = temp memory size
;
mov edi, [edx + FSPM_UPD_COMMON.StackBase]
mov ecx, [edx + FSPM_UPD_COMMON.StackSize]
+ jmp ChkFspHeapSize
+
+FspmUpdCommon2:
+ mov edi, [edx + FSPM_UPD_COMMON2.StackBase]
+ mov ecx, [edx + FSPM_UPD_COMMON2.StackSize]
+ChkFspHeapSize:
;
; Keep using bootloader stack if heap size % is 0
;
diff --git a/IntelFsp2Pkg/FspSecCore/Ia32/FspApiEntryT.nasm b/IntelFsp2Pkg/FspSecCore/Ia32/FspApiEntryT.nasm
index 7fd3d6d843..25ef99b798 100644
--- a/IntelFsp2Pkg/FspSecCore/Ia32/FspApiEntryT.nasm
+++ b/IntelFsp2Pkg/FspSecCore/Ia32/FspApiEntryT.nasm
@@ -84,8 +84,10 @@ struc LoadMicrocodeParamsFsp22
.FspUpdHeaderRevision: resb 1
.FspUpdHeaderReserved: resb 23
; }
- ; FSPT_ARCH_UPD{
- .FsptArchUpd: resd 8
+ ; FSPT_ARCH_UPD {
+ .FsptArchRevision: resb 1
+ .FsptArchReserved: resb 3
+ .FsptArchUpd: resd 7
; }
; FSPT_CORE_UPD {
.MicrocodeCodeAddr: resd 1
@@ -96,6 +98,25 @@ struc LoadMicrocodeParamsFsp22
.size:
endstruc
+struc LoadMicrocodeParamsFsp24
+ ; FSP_UPD_HEADER {
+ .FspUpdHeaderSignature: resd 2
+ .FspUpdHeaderRevision: resb 1
+ .FspUpdHeaderReserved: resb 23
+ ; }
+ ; FSPT_ARCH2_UPD {
+ .FsptArchRevision: resb 1
+ .FsptArchReserved: resb 3
+ .FsptArchLength: resd 1
+ .FspDebugHandler resq 1
+ .MicrocodeCodeAddr: resq 1
+ .MicrocodeCodeSize: resq 1
+ .CodeRegionBase: resq 1
+ .CodeRegionSize: resq 1
+ ; }
+ .size:
+endstruc
+
;
; Define SSE macros
;
@@ -172,9 +193,9 @@ ASM_PFX(LoadMicrocodeDefault):
; Executed by SBSP and NBSP
; Beginning of microcode update region starts on paragraph boundary
- ;
;
; Save return address to EBP
+ ;
movd ebp, mm7
cmp esp, 0
@@ -188,8 +209,12 @@ ASM_PFX(LoadMicrocodeDefault):
; and report error if size is less than 2k
; first check UPD header revision
cmp byte [esp + LoadMicrocodeParamsFsp22.FspUpdHeaderRevision], 2
- jae Fsp22UpdHeader
+ jb Fsp20UpdHeader
+ cmp byte [esp + LoadMicrocodeParamsFsp22.FsptArchRevision], 2
+ je Fsp24UpdHeader
+ jmp Fsp22UpdHeader
+Fsp20UpdHeader:
; UPD structure is compliant with FSP spec 2.0/2.1
mov eax, dword [esp + LoadMicrocodeParams.MicrocodeCodeSize]
cmp eax, 0
@@ -213,6 +238,19 @@ Fsp22UpdHeader:
mov esi, dword [esp + LoadMicrocodeParamsFsp22.MicrocodeCodeAddr]
cmp esi, 0
jnz CheckMainHeader
+ jmp ParamError
+
+Fsp24UpdHeader:
+ ; UPD structure is compliant with FSP spec 2.4
+ mov eax, dword [esp + LoadMicrocodeParamsFsp24.MicrocodeCodeSize]
+ cmp eax, 0
+ jz Exit2
+ cmp eax, 0800h
+ jl ParamError
+
+ mov esi, dword [esp + LoadMicrocodeParamsFsp24.MicrocodeCodeAddr]
+ cmp esi, 0
+ jnz CheckMainHeader
ParamError:
mov eax, 080000002h
@@ -308,9 +346,13 @@ AdvanceFixedSize:
CheckAddress:
; Check UPD header revision
- cmp byte [esp + LoadMicrocodeParamsFsp22.FspUpdHeaderRevision], 2
- jae Fsp22UpdHeader1
+ cmp byte [esp + LoadMicrocodeParamsFsp22.FspUpdHeaderRevision], 2
+ jb Fsp20UpdHeader1
+ cmp byte [esp + LoadMicrocodeParamsFsp22.FsptArchRevision], 2
+ je Fsp24UpdHeader1;
+ jmp Fsp22UpdHeader1
+Fsp20UpdHeader1:
; UPD structure is compliant with FSP spec 2.0/2.1
; Is automatic size detection ?
mov eax, dword [esp + LoadMicrocodeParams.MicrocodeCodeSize]
@@ -336,6 +378,19 @@ Fsp22UpdHeader1:
jae Done ;Jif address is outside of microcode region
jmp CheckMainHeader
+Fsp24UpdHeader1:
+ ; UPD structure is compliant with FSP spec 2.4
+ ; Is automatic size detection ?
+ mov eax, dword [esp + LoadMicrocodeParamsFsp24.MicrocodeCodeSize]
+ cmp eax, 0ffffffffh
+ jz LoadMicrocodeDefault4
+
+ ; Address >= microcode region address + microcode region size?
+ add eax, dword [esp + LoadMicrocodeParamsFsp24.MicrocodeCodeAddr]
+ cmp esi, eax
+ jae Done ;Jif address is outside of microcode region
+ jmp CheckMainHeader
+
LoadMicrocodeDefault4:
; Is valid Microcode start point ?
cmp dword [esi + MicrocodeHdr.MicrocodeHdrVersion], 0ffffffffh
@@ -351,7 +406,7 @@ LoadCheck:
mov eax, 1
cpuid
mov ecx, MSR_IA32_BIOS_SIGN_ID
- rdmsr ; Get current microcode signature
+ rdmsr ; Get current microcode signature
; Verify this microcode update is not already loaded
cmp dword [esi + MicrocodeHdr.MicrocodeHdrRevision], edx
@@ -405,8 +460,12 @@ ASM_PFX(EstablishStackFsp):
; check UPD structure revision (edx + 8)
cmp byte [edx + LoadMicrocodeParamsFsp22.FspUpdHeaderRevision], 2
- jae Fsp22UpdHeader2
+ jb Fsp20UpdHeader2
+ cmp byte [esp + LoadMicrocodeParamsFsp22.FsptArchRevision], 2
+ je Fsp24UpdHeader2
+ jmp Fsp22UpdHeader2
+Fsp20UpdHeader2:
; UPD structure is compliant with FSP spec 2.0/2.1
push dword [edx + LoadMicrocodeParams.CodeRegionSize] ; Code size sizeof(FSPT_UPD_COMMON) + 12
push dword [edx + LoadMicrocodeParams.CodeRegionBase] ; Code base sizeof(FSPT_UPD_COMMON) + 8
@@ -420,6 +479,14 @@ Fsp22UpdHeader2:
push dword [edx + LoadMicrocodeParamsFsp22.CodeRegionBase] ; Code base sizeof(FSPT_UPD_COMMON) + 8
push dword [edx + LoadMicrocodeParamsFsp22.MicrocodeCodeSize] ; Microcode size sizeof(FSPT_UPD_COMMON) + 4
push dword [edx + LoadMicrocodeParamsFsp22.MicrocodeCodeAddr] ; Microcode base sizeof(FSPT_UPD_COMMON) + 0
+ jmp ContinueAfterUpdPush
+
+Fsp24UpdHeader2:
+ ; UPD structure is compliant with FSP spec 2.4
+ push dword [edx + LoadMicrocodeParamsFsp24.CodeRegionSize] ; Code size sizeof(FSPT_UPD_COMMON) + 24
+ push dword [edx + LoadMicrocodeParamsFsp24.CodeRegionBase] ; Code base sizeof(FSPT_UPD_COMMON) + 16
+ push dword [edx + LoadMicrocodeParamsFsp24.MicrocodeCodeSize] ; Microcode size sizeof(FSPT_UPD_COMMON) + 8
+ push dword [edx + LoadMicrocodeParamsFsp24.MicrocodeCodeAddr] ; Microcode base sizeof(FSPT_UPD_COMMON) + 0
ContinueAfterUpdPush:
;
@@ -517,13 +584,13 @@ ASM_PFX(TempRamInitApi):
cmp eax, 0
jnz TempRamInitExit
- LXMMN xmm6, eax, 3 ;Restore microcode status if no CAR init error from ECX-SLOT 3 in xmm6.
+ LXMMN xmm6, eax, 3 ;Restore microcode status if no CAR init error from ECX-SLOT 3 in xmm6.
TempRamInitExit:
- mov bl, al ; save al data in bl
- mov al, 07Fh ; API exit postcode 7f
- out 080h, al
- mov al, bl ; restore al data from bl
+ mov bl, al ; save al data in bl
+ mov al, 07Fh ; API exit postcode 7f
+ out 080h, al
+ mov al, bl ; restore al data from bl
;
; Load EBP, EBX, ESI, EDI & ESP from XMM7 & XMM6
diff --git a/IntelFsp2Pkg/Include/FspEas/FspApi.h b/IntelFsp2Pkg/Include/FspEas/FspApi.h
index 794f94dc7a..fc47ae69bf 100644
--- a/IntelFsp2Pkg/Include/FspEas/FspApi.h
+++ b/IntelFsp2Pkg/Include/FspEas/FspApi.h
@@ -112,12 +112,12 @@ typedef struct {
///
typedef struct {
///
- /// Revision Revision of the structure is 1 for this version of the specification.
+ /// Revision of the structure is 1 for this version of the specification.
///
UINT8 Revision;
UINT8 Reserved[3];
///
- /// Length Length of the structure in bytes. The current value for this field is 32.
+ /// Length of the structure in bytes. The current value for this field is 32.
///
UINT32 Length;
///
@@ -128,6 +128,46 @@ typedef struct {
UINT8 Reserved1[20];
} FSPT_ARCH_UPD;
+///
+/// FSPT_ARCH2_UPD Configuration.
+///
+typedef struct {
+ ///
+ /// Revision of the structure is 2 for this version of the specification.
+ ///
+ UINT8 Revision;
+ UINT8 Reserved[3];
+ ///
+ /// Length of the structure in bytes. The current value for this field is 64.
+ ///
+ UINT32 Length;
+ ///
+ /// FspDebugHandler Optional debug handler for the bootloader to receive debug messages
+ /// occurring during FSP execution.
+ ///
+ EFI_PHYSICAL_ADDRESS FspDebugHandler;
+ ///
+ /// Specifies the base address of the first microcode update in
+ /// the bootloader’s microcode region. If more than one microcode
+ /// update is present in the microcode region, then these microcode
+ /// updates must be packed back-to-back in the microcode region.
+ ///
+ EFI_PHYSICAL_ADDRESS MicrocodeRegionBase;
+ ///
+ /// The length of the bootloader’s microcode region in bytes.
+ ///
+ UINT64 MicrocodeRegionSize;
+ ///
+ /// Specifies the base address of the cacheable flash region.
+ ///
+ EFI_PHYSICAL_ADDRESS CodeRegionBase;
+ ///
+ /// The length of the cacheable flash region in bytes.
+ ///
+ UINT64 CodeRegionSize;
+ UINT8 Reserved1[16];
+} FSPT_ARCH2_UPD;
+
///
/// FSPM_ARCH_UPD Configuration.
///
@@ -169,14 +209,65 @@ typedef struct {
UINT8 Reserved1[4];
} FSPM_ARCH_UPD;
+///
+/// FSPM_ARCH2_UPD Configuration.
+///
typedef struct {
///
- /// Revision Revision of the structure is 1 for this version of the specification.
+ /// Revision of the structure is 3 for this version of the specification.
///
UINT8 Revision;
UINT8 Reserved[3];
///
- /// Length Length of the structure in bytes. The current value for this field is 32.
+ /// Lengthe of the structure in bytes. The current value for this field is 64.
+ ///
+ UINT32 Length;
+ ///
+ /// Pointer to the temporary stack base address to be
+ /// consumed inside FspMemoryInit() API.
+ ///
+ EFI_PHYSICAL_ADDRESS StackBase;
+ ///
+ /// Temporary stack size to be consumed inside
+ /// FspMemoryInit() API.
+ ///
+ UINT64 StackSize;
+ ///
+ /// Size of memory to be reserved by FSP below "top
+ /// of low usable memory" for bootloader usage.
+ ///
+ UINT32 BootLoaderTolumSize;
+ ///
+ /// Current boot mode.
+ ///
+ UINT32 BootMode;
+ ///
+ /// Optional event handler for the bootloader to be informed of events occurring during FSP execution.
+ /// This value is only valid if Revision is >= 2.
+ ///
+ EFI_PHYSICAL_ADDRESS FspEventHandler;
+ ///
+ /// A FSP binary may optionally implement multi-phase memory initialization,
+ /// This is only supported if the FspMultiPhaseMemInitEntryOffset field in FSP_INFO_HEADER
+ /// is non-zero.
+ /// To enable multi-phase memory initialization, the bootloader must set
+ /// EnableMultiPhaseMemoryInit to a non-zero value.
+ ///
+ UINT8 EnableMultiPhaseMemoryInit;
+ UINT8 Reserved1[23];
+} FSPM_ARCH2_UPD;
+
+///
+/// FSPS_ARCH_UPD Configuration.
+///
+typedef struct {
+ ///
+ /// Revision of the structure is 1 for this version of the specification.
+ ///
+ UINT8 Revision;
+ UINT8 Reserved[3];
+ ///
+ /// Length of the structure in bytes. The current value for this field is 32.
///
UINT32 Length;
///
@@ -195,6 +286,35 @@ typedef struct {
UINT8 Reserved1[19];
} FSPS_ARCH_UPD;
+///
+/// FSPS_ARCH2_UPD Configuration.
+///
+typedef struct {
+ ///
+ /// Revision of the structure is 2 for this version of the specification.
+ ///
+ UINT8 Revision;
+ UINT8 Reserved[3];
+ ///
+ /// Length of the structure in bytes. The current value for this field is 32.
+ ///
+ UINT32 Length;
+ ///
+ /// FspEventHandler Optional event handler for the bootloader to be informed of events
+ /// occurring during FSP execution.
+ ///
+ EFI_PHYSICAL_ADDRESS FspEventHandler;
+ ///
+ /// A FSP binary may optionally implement multi-phase silicon initialization,
+ /// This is only supported if the FspMultiPhaseSiInitEntryOffset field in FSP_INFO_HEADER
+ /// is non-zero.
+ /// To enable multi-phase silicon initialization, the bootloader must set
+ /// EnableMultiPhaseSiliconInit to a non-zero value.
+ ///
+ UINT8 EnableMultiPhaseSiliconInit;
+ UINT8 Reserved1[15];
+} FSPS_ARCH2_UPD;
+
///
/// FSPT_UPD_COMMON Configuration.
///
diff --git a/IntelFsp2Pkg/Tools/GenCfgOpt.py b/IntelFsp2Pkg/Tools/GenCfgOpt.py
index 714b2d8b1a..733705fe24 100644
--- a/IntelFsp2Pkg/Tools/GenCfgOpt.py
+++ b/IntelFsp2Pkg/Tools/GenCfgOpt.py
@@ -1397,7 +1397,7 @@ EndList
UpdRegionCheck = ['FSPT', 'FSPM', 'FSPS'] # FSPX_UPD_REGION
UpdConfigCheck = ['FSP_T', 'FSP_M', 'FSP_S'] # FSP_X_CONFIG, FSP_X_TEST_CONFIG, FSP_X_RESTRICTED_CONFIG
UpdSignatureCheck = ['FSPT_UPD_SIGNATURE', 'FSPM_UPD_SIGNATURE', 'FSPS_UPD_SIGNATURE']
- ExcludedSpecificUpd = ['FSPT_ARCH_UPD', 'FSPM_ARCH_UPD', 'FSPS_ARCH_UPD']
+ ExcludedSpecificUpd = ['FSPT_ARCH', 'FSPM_ARCH', 'FSPS_ARCH']
IncLines = []
if InputHeaderFile != '':
--
2.16.2.windows.1
^ permalink raw reply related [flat|nested] 6+ messages in thread* [edk2-devel][PATCH 4/5] IntelFsp2Pkg: FspSecCore support for X64
2022-04-04 4:13 [edk2-devel][PATCH 0/5] To support PEI 64bit in IntelFsp2Pkg Kuo, Ted
` (2 preceding siblings ...)
2022-04-04 4:13 ` [edk2-devel][PATCH 3/5] IntelFsp2Pkg: Update FSP_GLOBAL_DATA and FSP_PLAT_DATA " Kuo, Ted
@ 2022-04-04 4:13 ` Kuo, Ted
2022-04-04 4:14 ` [edk2-devel][PATCH 5/5] IntelFsp2Pkg: SecFspSecPlatformLibNull " Kuo, Ted
4 siblings, 0 replies; 6+ messages in thread
From: Kuo, Ted @ 2022-04-04 4:13 UTC (permalink / raw)
To: devel; +Cc: Chasel Chiu, Nate DeSimone, Star Zeng, Ashraf Ali S
REF:https://bugzilla.tianocore.org/show_bug.cgi?id=3893
1.Added FspSecCore support for X64.
2.Bumped FSP header revision to 7 to indicate FSP 64bit is supported.
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/FspSecCore/Fsp22SecCoreS.inf | 8 +-
IntelFsp2Pkg/FspSecCore/FspSecCoreM.inf | 9 +-
IntelFsp2Pkg/FspSecCore/FspSecCoreS.inf | 8 +-
IntelFsp2Pkg/FspSecCore/FspSecCoreT.inf | 10 +-
.../FspSecCore/Ia32/FspApiEntryCommon.nasm | 4 +-
IntelFsp2Pkg/FspSecCore/X64/Fsp22ApiEntryS.nasm | 103 +++++
IntelFsp2Pkg/FspSecCore/X64/FspApiEntryCommon.nasm | 76 ++++
IntelFsp2Pkg/FspSecCore/X64/FspApiEntryM.nasm | 263 +++++++++++
IntelFsp2Pkg/FspSecCore/X64/FspApiEntryS.nasm | 67 +++
IntelFsp2Pkg/FspSecCore/X64/FspApiEntryT.nasm | 492 +++++++++++++++++++++
IntelFsp2Pkg/FspSecCore/X64/FspHelper.nasm | 34 ++
IntelFsp2Pkg/FspSecCore/X64/MicrocodeLoadNasm.inc | 11 +
IntelFsp2Pkg/FspSecCore/X64/ReadRsp.nasm | 22 +
IntelFsp2Pkg/FspSecCore/X64/Stack.nasm | 73 +++
| 14 +-
IntelFsp2Pkg/Include/SaveRestoreSseAvxNasm.inc | 284 ++++++++++++
.../Library/BaseFspCommonLib/FspCommonLib.c | 1 +
.../Library/BaseFspSwitchStackLib/X64/Stack.nasm | 5 +-
18 files changed, 1473 insertions(+), 11 deletions(-)
create mode 100644 IntelFsp2Pkg/FspSecCore/X64/Fsp22ApiEntryS.nasm
create mode 100644 IntelFsp2Pkg/FspSecCore/X64/FspApiEntryCommon.nasm
create mode 100644 IntelFsp2Pkg/FspSecCore/X64/FspApiEntryM.nasm
create mode 100644 IntelFsp2Pkg/FspSecCore/X64/FspApiEntryS.nasm
create mode 100644 IntelFsp2Pkg/FspSecCore/X64/FspApiEntryT.nasm
create mode 100644 IntelFsp2Pkg/FspSecCore/X64/FspHelper.nasm
create mode 100644 IntelFsp2Pkg/FspSecCore/X64/MicrocodeLoadNasm.inc
create mode 100644 IntelFsp2Pkg/FspSecCore/X64/ReadRsp.nasm
create mode 100644 IntelFsp2Pkg/FspSecCore/X64/Stack.nasm
create mode 100644 IntelFsp2Pkg/Include/SaveRestoreSseAvxNasm.inc
diff --git a/IntelFsp2Pkg/FspSecCore/Fsp22SecCoreS.inf b/IntelFsp2Pkg/FspSecCore/Fsp22SecCoreS.inf
index 0a24eb2a8b..d64ec12499 100644
--- a/IntelFsp2Pkg/FspSecCore/Fsp22SecCoreS.inf
+++ b/IntelFsp2Pkg/FspSecCore/Fsp22SecCoreS.inf
@@ -17,7 +17,7 @@
#
# The following information is for reference only and not required by the build tools.
#
-# VALID_ARCHITECTURES = IA32
+# VALID_ARCHITECTURES = IA32 X64
#
[Sources]
@@ -30,6 +30,12 @@
Ia32/FspApiEntryCommon.nasm
Ia32/FspHelper.nasm
+[Sources.X64]
+ X64/Stack.nasm
+ X64/Fsp22ApiEntryS.nasm
+ X64/FspApiEntryCommon.nasm
+ X64/FspHelper.nasm
+
[Binaries.Ia32]
RAW|Vtf0/Bin/ResetVec.ia32.raw |GCC
diff --git a/IntelFsp2Pkg/FspSecCore/FspSecCoreM.inf b/IntelFsp2Pkg/FspSecCore/FspSecCoreM.inf
index 7b05cae641..34794dd16e 100644
--- a/IntelFsp2Pkg/FspSecCore/FspSecCoreM.inf
+++ b/IntelFsp2Pkg/FspSecCore/FspSecCoreM.inf
@@ -17,7 +17,7 @@
#
# The following information is for reference only and not required by the build tools.
#
-# VALID_ARCHITECTURES = IA32
+# VALID_ARCHITECTURES = IA32 X64
#
[Sources]
@@ -34,6 +34,13 @@
Ia32/FspHelper.nasm
Ia32/ReadEsp.nasm
+[Sources.X64]
+ X64/Stack.nasm
+ X64/FspApiEntryM.nasm
+ X64/FspApiEntryCommon.nasm
+ X64/FspHelper.nasm
+ X64/ReadRsp.nasm
+
[Binaries.Ia32]
RAW|Vtf0/Bin/ResetVec.ia32.raw |GCC
diff --git a/IntelFsp2Pkg/FspSecCore/FspSecCoreS.inf b/IntelFsp2Pkg/FspSecCore/FspSecCoreS.inf
index 1d9c2554d1..79d4e0674e 100644
--- a/IntelFsp2Pkg/FspSecCore/FspSecCoreS.inf
+++ b/IntelFsp2Pkg/FspSecCore/FspSecCoreS.inf
@@ -17,7 +17,7 @@
#
# The following information is for reference only and not required by the build tools.
#
-# VALID_ARCHITECTURES = IA32
+# VALID_ARCHITECTURES = IA32 X64
#
[Sources]
@@ -30,6 +30,12 @@
Ia32/FspApiEntryCommon.nasm
Ia32/FspHelper.nasm
+[Sources.X64]
+ X64/Stack.nasm
+ X64/FspApiEntryS.nasm
+ X64/FspApiEntryCommon.nasm
+ X64/FspHelper.nasm
+
[Binaries.Ia32]
RAW|Vtf0/Bin/ResetVec.ia32.raw |GCC
diff --git a/IntelFsp2Pkg/FspSecCore/FspSecCoreT.inf b/IntelFsp2Pkg/FspSecCore/FspSecCoreT.inf
index 664bde5678..f08a3b2c2b 100644
--- a/IntelFsp2Pkg/FspSecCore/FspSecCoreT.inf
+++ b/IntelFsp2Pkg/FspSecCore/FspSecCoreT.inf
@@ -17,17 +17,19 @@
#
# The following information is for reference only and not required by the build tools.
#
-# VALID_ARCHITECTURES = IA32
+# VALID_ARCHITECTURES = IA32 X64
#
-[Sources]
-
-
[Sources.IA32]
Ia32/Stack.nasm
Ia32/FspApiEntryT.nasm
Ia32/FspHelper.nasm
+[Sources.X64]
+ X64/Stack.nasm
+ X64/FspApiEntryT.nasm
+ X64/FspHelper.nasm
+
[Binaries.Ia32]
RAW|Vtf0/Bin/ResetVec.ia32.raw |GCC
diff --git a/IntelFsp2Pkg/FspSecCore/Ia32/FspApiEntryCommon.nasm b/IntelFsp2Pkg/FspSecCore/Ia32/FspApiEntryCommon.nasm
index 26ae7d9fd3..024f7aec5c 100644
--- a/IntelFsp2Pkg/FspSecCore/Ia32/FspApiEntryCommon.nasm
+++ b/IntelFsp2Pkg/FspSecCore/Ia32/FspApiEntryCommon.nasm
@@ -7,6 +7,8 @@
SECTION .text
+STACK_SAVED_EAX_OFFSET EQU 4 * 7 ; size of a general purpose register * eax index
+
;
; Following functions will be provided in C
;
@@ -52,7 +54,7 @@ FspApiCommon1:
add esp, 8
cmp eax, 0
jz FspApiCommon2
- mov dword [esp + (4 * 7)], eax
+ mov dword [esp + STACK_SAVED_EAX_OFFSET], eax
popad
exit:
ret
diff --git a/IntelFsp2Pkg/FspSecCore/X64/Fsp22ApiEntryS.nasm b/IntelFsp2Pkg/FspSecCore/X64/Fsp22ApiEntryS.nasm
new file mode 100644
index 0000000000..c739793a39
--- /dev/null
+++ b/IntelFsp2Pkg/FspSecCore/X64/Fsp22ApiEntryS.nasm
@@ -0,0 +1,103 @@
+;; @file
+; Provide FSP API entry points.
+;
+; Copyright (c) 2022, Intel Corporation. All rights reserved.<BR>
+; SPDX-License-Identifier: BSD-2-Clause-Patent
+;;
+
+ SECTION .text
+
+;
+; Following functions will be provided in C
+;
+extern ASM_PFX(FspApiCommon)
+extern ASM_PFX(FspMultiPhaseSiInitApiHandler)
+
+STACK_SAVED_RAX_OFFSET EQU 8 * 7 ; size of a general purpose register * rax index
+
+;----------------------------------------------------------------------------
+; NotifyPhase API
+;
+; This FSP API will notify the FSP about the different phases in the boot
+; process
+;
+;----------------------------------------------------------------------------
+global ASM_PFX(NotifyPhaseApi)
+ASM_PFX(NotifyPhaseApi):
+ mov eax, 2 ; FSP_API_INDEX.NotifyPhaseApiIndex
+ jmp ASM_PFX(FspApiCommon)
+
+;----------------------------------------------------------------------------
+; FspSiliconInit API
+;
+; This FSP API initializes the CPU and the chipset including the IO
+; controllers in the chipset to enable normal operation of these devices.
+;
+;----------------------------------------------------------------------------
+global ASM_PFX(FspSiliconInitApi)
+ASM_PFX(FspSiliconInitApi):
+ mov eax, 5 ; FSP_API_INDEX.FspSiliconInitApiIndex
+ jmp ASM_PFX(FspApiCommon)
+
+;----------------------------------------------------------------------------
+; FspMultiPhaseSiInitApi API
+;
+; This FSP API provides multi-phase silicon initialization, which brings greater
+; modularity beyond the existing FspSiliconInit() API.
+; Increased modularity is achieved by adding an extra API to FSP-S.
+; This allows the bootloader to add board specific initialization steps throughout
+; the SiliconInit flow as needed.
+;
+;----------------------------------------------------------------------------
+
+%include "PushPopRegsNasm.inc"
+
+global ASM_PFX(FspMultiPhaseSiInitApi)
+ASM_PFX(FspMultiPhaseSiInitApi):
+ mov eax, 6 ; FSP_API_INDEX.FspMultiPhaseSiInitApiIndex
+ jmp ASM_PFX(FspApiCommon)
+
+;----------------------------------------------------------------------------
+; FspApiCommonContinue API
+;
+; This is the FSP API common entry point to resume the FSP execution
+;
+;----------------------------------------------------------------------------
+global ASM_PFX(FspApiCommonContinue)
+ASM_PFX(FspApiCommonContinue):
+ ;
+ ; Handle FspMultiPhaseSiInitApiIndex API
+ ;
+ cmp eax, 6
+ jnz NotMultiPhaseSiInitApi
+
+ PUSHA_64
+ mov rdx, rcx ; move ApiParam to rdx
+ mov rcx, rax ; move ApiIdx to rcx
+ call ASM_PFX(FspMultiPhaseSiInitApiHandler)
+ mov qword [rsp + STACK_SAVED_RAX_OFFSET], rax
+ POPA_64
+ ret
+
+NotMultiPhaseSiInitApi:
+ jmp $
+ ret
+
+;----------------------------------------------------------------------------
+; TempRamInit API
+;
+; Empty function for WHOLEARCHIVE build option
+;
+;----------------------------------------------------------------------------
+global ASM_PFX(TempRamInitApi)
+ASM_PFX(TempRamInitApi):
+ jmp $
+ ret
+
+;----------------------------------------------------------------------------
+; Module Entrypoint API
+;----------------------------------------------------------------------------
+global ASM_PFX(_ModuleEntryPoint)
+ASM_PFX(_ModuleEntryPoint):
+ jmp $
+
diff --git a/IntelFsp2Pkg/FspSecCore/X64/FspApiEntryCommon.nasm b/IntelFsp2Pkg/FspSecCore/X64/FspApiEntryCommon.nasm
new file mode 100644
index 0000000000..718e672e02
--- /dev/null
+++ b/IntelFsp2Pkg/FspSecCore/X64/FspApiEntryCommon.nasm
@@ -0,0 +1,76 @@
+;; @file
+; Provide FSP API entry points.
+;
+; Copyright (c) 2022, Intel Corporation. All rights reserved.<BR>
+; SPDX-License-Identifier: BSD-2-Clause-Patent
+;;
+
+ SECTION .text
+
+%include "PushPopRegsNasm.inc"
+
+STACK_SAVED_RAX_OFFSET EQU 8 * 7 ; size of a general purpose register * rax index
+
+;
+; Following functions will be provided in C
+;
+extern ASM_PFX(Loader2PeiSwitchStack)
+extern ASM_PFX(FspApiCallingCheck)
+
+;
+; Following functions will be provided in ASM
+;
+extern ASM_PFX(FspApiCommonContinue)
+extern ASM_PFX(AsmGetFspInfoHeader)
+
+;----------------------------------------------------------------------------
+; FspApiCommon API
+;
+; This is the FSP API common entry point to resume the FSP execution
+;
+;----------------------------------------------------------------------------
+global ASM_PFX(FspApiCommon)
+ASM_PFX(FspApiCommon):
+ ;
+ ; RAX holds the API index
+ ;
+
+ ;
+ ; Stack must be ready
+ ;
+ push rax
+ add rsp, 8
+ cmp rax, [rsp - 8]
+ jz FspApiCommon1
+ mov rax, 08000000000000003h
+ jmp exit
+
+FspApiCommon1:
+ ;
+ ; Verify the calling condition
+ ;
+ PUSHA_64
+ mov rdx, rcx ; move ApiParam to rdx
+ mov rcx, rax ; move ApiIdx to rcx
+ call ASM_PFX(FspApiCallingCheck)
+ cmp rax, 0
+ jz FspApiCommon2
+ mov [rsp + STACK_SAVED_RAX_OFFSET], rax
+ POPA_64
+exit:
+ ret
+
+FspApiCommon2:
+ POPA_64
+ cmp rax, 3 ; FspMemoryInit API
+ jz FspApiCommon3
+
+ cmp rax, 6 ; FspMultiPhaseSiInitApiIndex API
+ jz FspApiCommon3
+
+ call ASM_PFX(AsmGetFspInfoHeader)
+ jmp ASM_PFX(Loader2PeiSwitchStack)
+
+FspApiCommon3:
+ jmp ASM_PFX(FspApiCommonContinue)
+
diff --git a/IntelFsp2Pkg/FspSecCore/X64/FspApiEntryM.nasm b/IntelFsp2Pkg/FspSecCore/X64/FspApiEntryM.nasm
new file mode 100644
index 0000000000..f149066ad8
--- /dev/null
+++ b/IntelFsp2Pkg/FspSecCore/X64/FspApiEntryM.nasm
@@ -0,0 +1,263 @@
+;; @file
+; Provide FSP API entry points.
+;
+; Copyright (c) 2022, Intel Corporation. All rights reserved.<BR>
+; SPDX-License-Identifier: BSD-2-Clause-Patent
+;;
+
+ SECTION .text
+
+%include "PushPopRegsNasm.inc"
+
+;
+; Following are fixed PCDs
+;
+extern ASM_PFX(PcdGet8 (PcdFspHeapSizePercentage))
+
+struc FSPM_UPD_COMMON
+ ; FSP_UPD_HEADER {
+ .FspUpdHeader: resd 8
+ ; }
+ ; FSPM_ARCH2_UPD {
+ .Revision: resb 1
+ .Reserved: resb 3
+ .Length resd 1
+ .StackBase: resq 1
+ .StackSize: resq 1
+ .BootLoaderTolumSize: resd 1
+ .BootMode: resd 1
+ .FspEventHandler resq 1
+ .EnableMultiPhaseMemoryInit resb 1
+ .Reserved1: resb 23
+ ; }
+ .size:
+endstruc
+
+;
+; Following functions will be provided in C
+;
+extern ASM_PFX(SecStartup)
+extern ASM_PFX(FspApiCommon)
+
+;
+; Following functions will be provided in PlatformSecLib
+;
+extern ASM_PFX(AsmGetFspBaseAddress)
+extern ASM_PFX(AsmGetFspInfoHeader)
+
+FSP_HEADER_IMGBASE_OFFSET EQU 1Ch
+FSP_HEADER_CFGREG_OFFSET EQU 24h
+
+;----------------------------------------------------------------------------
+; FspMemoryInit API
+;
+; This FSP API is called after TempRamInit and initializes the memory.
+;
+;----------------------------------------------------------------------------
+global ASM_PFX(FspMemoryInitApi)
+ASM_PFX(FspMemoryInitApi):
+ mov eax, 3 ; FSP_API_INDEX.FspMemoryInitApiIndex
+ jmp ASM_PFX(FspApiCommon)
+
+;----------------------------------------------------------------------------
+; TempRamExitApi API
+;
+; This API tears down temporary RAM
+;
+;----------------------------------------------------------------------------
+global ASM_PFX(TempRamExitApi)
+ASM_PFX(TempRamExitApi):
+ mov eax, 4 ; FSP_API_INDEX.TempRamExitApiIndex
+ jmp ASM_PFX(FspApiCommon)
+
+;----------------------------------------------------------------------------
+; FspApiCommonContinue API
+;
+; This is the FSP API common entry point to resume the FSP execution
+;
+;----------------------------------------------------------------------------
+global ASM_PFX(FspApiCommonContinue)
+ASM_PFX(FspApiCommonContinue):
+ ;
+ ; RAX holds the API index
+ ; Push RDX and RCX to form CONTEXT_STACK_64
+ ;
+ push rdx ; Push a QWORD data for stack alignment
+ push rdx ; Push API Parameter2 on stack
+ push rcx ; Push API Parameter1 on stack
+
+ ;
+ ; FspMemoryInit API setup the initial stack frame
+ ;
+
+ ;
+ ; Place holder to store the FspInfoHeader pointer
+ ;
+ push rax
+
+ ;
+ ; Update the FspInfoHeader pointer
+ ;
+ push rax
+ call ASM_PFX(AsmGetFspInfoHeader)
+ mov [rsp + 8], rax
+ pop rax
+
+ ;
+ ; Create a Task Frame in the stack for the Boot Loader
+ ;
+ pushfq
+ cli
+ PUSHA_64
+
+ ; Reserve 16 bytes for IDT save/restore
+ sub rsp, 16
+ sidt [rsp]
+
+ ; Get Stackbase and StackSize from FSPM_UPD Param
+ mov rdx, rcx ; Put FSPM_UPD Param to rdx
+ cmp rdx, 0
+ jnz FspStackSetup
+
+ ; Get UPD default values if FspmUpdDataPtr (ApiParam1) is null
+ xchg rbx, rax
+ call ASM_PFX(AsmGetFspInfoHeader)
+ mov edx, [rax + FSP_HEADER_IMGBASE_OFFSET]
+ add edx, [rax + FSP_HEADER_CFGREG_OFFSET]
+ xchg rbx, rax
+
+FspStackSetup:
+ ;
+ ; StackBase = temp memory base, StackSize = temp memory size
+ ;
+ mov rdi, [rdx + FSPM_UPD_COMMON.StackBase]
+ mov ecx, [rdx + FSPM_UPD_COMMON.StackSize]
+
+ ;
+ ; Keep using bootloader stack if heap size % is 0
+ ;
+ mov rbx, ASM_PFX(PcdGet8 (PcdFspHeapSizePercentage))
+ mov bl, BYTE [rbx]
+ cmp bl, 0
+ jz SkipStackSwitch
+
+ ;
+ ; Set up a dedicated temp ram stack for FSP if FSP heap size % doesn't equal 0
+ ;
+ add rdi, rcx
+ ;
+ ; Switch to new FSP stack
+ ;
+ xchg rdi, rsp ; Exchange rdi and rsp, rdi will be assigned to the current rsp pointer and rsp will be Stack base + Stack size
+
+SkipStackSwitch:
+ ;
+ ; If heap size % is 0:
+ ; EDI is FSPM_UPD_COMMON.StackBase and will hold ESP later (boot loader stack pointer)
+ ; ECX is FSPM_UPD_COMMON.StackSize
+ ; ESP is boot loader stack pointer (no stack switch)
+ ; BL is 0 to indicate no stack switch (EBX will hold FSPM_UPD_COMMON.StackBase later)
+ ;
+ ; If heap size % is not 0
+ ; EDI is boot loader stack pointer
+ ; ECX is FSPM_UPD_COMMON.StackSize
+ ; ESP is new stack (FSPM_UPD_COMMON.StackBase + FSPM_UPD_COMMON.StackSize)
+ ; BL is NOT 0 to indicate stack has switched
+ ;
+ cmp bl, 0
+ jnz StackHasBeenSwitched
+
+ mov rbx, rdi ; Put FSPM_UPD_COMMON.StackBase to rbx as temp memory base
+ mov rdi, rsp ; Put boot loader stack pointer to rdi
+ jmp StackSetupDone
+
+StackHasBeenSwitched:
+ mov rbx, rsp ; Put Stack base + Stack size in ebx
+ sub rbx, rcx ; Stack base + Stack size - Stack size as temp memory base
+
+StackSetupDone:
+
+ ;
+ ; Per X64 calling convention, make sure RSP is 16-byte aligned.
+ ;
+ mov rdx, rsp
+ and rdx, 0fh
+ sub rsp, rdx
+
+ ;
+ ; Pass the API Idx to SecStartup
+ ;
+ push rax
+
+ ;
+ ; Pass the BootLoader stack to SecStartup
+ ;
+ push rdi
+
+ ;
+ ; Pass BFV into the PEI Core
+ ; It uses relative address to calculate the actual boot FV base
+ ; For FSP implementation with single FV, PcdFspBootFirmwareVolumeBase and
+ ; PcdFspAreaBaseAddress are the same. For FSP with multiple FVs,
+ ; they are different. The code below can handle both cases.
+ ;
+ call ASM_PFX(AsmGetFspBaseAddress)
+ mov r8, rax
+
+ ;
+ ; Pass entry point of the PEI core
+ ;
+ call ASM_PFX(AsmGetPeiCoreOffset)
+ lea r9, [r8 + rax]
+
+ ;
+ ; Pass stack base and size into the PEI Core
+ ;
+ mov rcx, rcx
+ mov rdx, rbx
+
+ ;
+ ; Pass Control into the PEI Core
+ ; RCX = SizeOfRam, RDX = TempRamBase, R8 = BFV, R9 = PeiCoreEntry, Last 1 Stack = BL stack, Last 2 Stack = API index
+ ; According to X64 calling convention, caller has to allocate 32 bytes as a shadow store on call stack right before
+ ; calling the function.
+ ;
+ sub rsp, 20h
+ call ASM_PFX(SecStartup)
+ add rsp, 20h
+exit:
+ ret
+
+global ASM_PFX(FspPeiCoreEntryOff)
+ASM_PFX(FspPeiCoreEntryOff):
+ ;
+ ; This value will be pached by the build script
+ ;
+ DD 0x12345678
+
+global ASM_PFX(AsmGetPeiCoreOffset)
+ASM_PFX(AsmGetPeiCoreOffset):
+ push rbx
+ mov rbx, ASM_PFX(FspPeiCoreEntryOff)
+ mov eax, dword[ebx]
+ pop rbx
+ ret
+
+;----------------------------------------------------------------------------
+; TempRamInit API
+;
+; Empty function for WHOLEARCHIVE build option
+;
+;----------------------------------------------------------------------------
+global ASM_PFX(TempRamInitApi)
+ASM_PFX(TempRamInitApi):
+ jmp $
+ ret
+
+;----------------------------------------------------------------------------
+; Module Entrypoint API
+;----------------------------------------------------------------------------
+global ASM_PFX(_ModuleEntryPoint)
+ASM_PFX(_ModuleEntryPoint):
+ jmp $
+
diff --git a/IntelFsp2Pkg/FspSecCore/X64/FspApiEntryS.nasm b/IntelFsp2Pkg/FspSecCore/X64/FspApiEntryS.nasm
new file mode 100644
index 0000000000..f863ef0078
--- /dev/null
+++ b/IntelFsp2Pkg/FspSecCore/X64/FspApiEntryS.nasm
@@ -0,0 +1,67 @@
+;; @file
+; Provide FSP API entry points.
+;
+; Copyright (c) 2022, Intel Corporation. All rights reserved.<BR>
+; SPDX-License-Identifier: BSD-2-Clause-Patent
+;;
+
+ SECTION .text
+
+;
+; Following functions will be provided in C
+;
+extern ASM_PFX(FspApiCommon)
+
+;----------------------------------------------------------------------------
+; NotifyPhase API
+;
+; This FSP API will notify the FSP about the different phases in the boot
+; process
+;
+;----------------------------------------------------------------------------
+global ASM_PFX(NotifyPhaseApi)
+ASM_PFX(NotifyPhaseApi):
+ mov eax, 2 ; FSP_API_INDEX.NotifyPhaseApiIndex
+ jmp ASM_PFX(FspApiCommon)
+
+;----------------------------------------------------------------------------
+; FspSiliconInit API
+;
+; This FSP API initializes the CPU and the chipset including the IO
+; controllers in the chipset to enable normal operation of these devices.
+;
+;----------------------------------------------------------------------------
+global ASM_PFX(FspSiliconInitApi)
+ASM_PFX(FspSiliconInitApi):
+ mov eax, 5 ; FSP_API_INDEX.FspSiliconInitApiIndex
+ jmp ASM_PFX(FspApiCommon)
+
+;----------------------------------------------------------------------------
+; FspApiCommonContinue API
+;
+; This is the FSP API common entry point to resume the FSP execution
+;
+;----------------------------------------------------------------------------
+global ASM_PFX(FspApiCommonContinue)
+ASM_PFX(FspApiCommonContinue):
+ jmp $
+ ret
+
+;----------------------------------------------------------------------------
+; TempRamInit API
+;
+; Empty function for WHOLEARCHIVE build option
+;
+;----------------------------------------------------------------------------
+global ASM_PFX(TempRamInitApi)
+ASM_PFX(TempRamInitApi):
+ jmp $
+ ret
+
+;----------------------------------------------------------------------------
+; Module Entrypoint API
+;----------------------------------------------------------------------------
+global ASM_PFX(_ModuleEntryPoint)
+ASM_PFX(_ModuleEntryPoint):
+ jmp $
+
diff --git a/IntelFsp2Pkg/FspSecCore/X64/FspApiEntryT.nasm b/IntelFsp2Pkg/FspSecCore/X64/FspApiEntryT.nasm
new file mode 100644
index 0000000000..1406ba8833
--- /dev/null
+++ b/IntelFsp2Pkg/FspSecCore/X64/FspApiEntryT.nasm
@@ -0,0 +1,492 @@
+;; @file
+; Provide FSP API entry points.
+;
+; Copyright (c) 2022, Intel Corporation. All rights reserved.<BR>
+; SPDX-License-Identifier: BSD-2-Clause-Patent
+;;
+
+ SECTION .text
+
+%include "SaveRestoreSseAvxNasm.inc"
+%include "MicrocodeLoadNasm.inc"
+
+;
+; Following are fixed PCDs
+;
+extern ASM_PFX(PcdGet32 (PcdTemporaryRamBase))
+extern ASM_PFX(PcdGet32 (PcdTemporaryRamSize))
+extern ASM_PFX(PcdGet32 (PcdFspReservedBufferSize))
+
+;
+; Following functions will be provided in PlatformSecLib
+;
+extern ASM_PFX(AsmGetFspBaseAddress)
+extern ASM_PFX(AsmGetFspInfoHeader)
+;extern ASM_PFX(LoadMicrocode) ; @todo: needs a weak implementation
+extern ASM_PFX(SecPlatformInit) ; @todo: needs a weak implementation
+extern ASM_PFX(SecCarInit)
+
+;
+; Define the data length that we saved on the stack top
+;
+DATA_LEN_OF_PER0 EQU 18h
+DATA_LEN_OF_MCUD EQU 18h
+DATA_LEN_AT_STACK_TOP EQU (DATA_LEN_OF_PER0 + DATA_LEN_OF_MCUD + 4)
+
+;
+; @todo: These structures are moved from MicrocodeLoadNasm.inc to avoid
+; build error. This needs to be fixed later on.
+;
+struc MicrocodeHdr
+ .MicrocodeHdrVersion: resd 1
+ .MicrocodeHdrRevision: resd 1
+ .MicrocodeHdrDate: resd 1
+ .MicrocodeHdrProcessor: resd 1
+ .MicrocodeHdrChecksum: resd 1
+ .MicrocodeHdrLoader: resd 1
+ .MicrocodeHdrFlags: resd 1
+ .MicrocodeHdrDataSize: resd 1
+ .MicrocodeHdrTotalSize: resd 1
+ .MicrocodeHdrRsvd: resd 3
+ .size:
+endstruc
+
+struc ExtSigHdr
+ .ExtSigHdrCount: resd 1
+ .ExtSigHdrChecksum: resd 1
+ .ExtSigHdrRsvd: resd 3
+ .size:
+endstruc
+
+struc ExtSig
+ .ExtSigProcessor: resd 1
+ .ExtSigFlags: resd 1
+ .ExtSigChecksum: resd 1
+ .size:
+endstruc
+
+struc LoadMicrocodeParamsFsp24
+ ; FSP_UPD_HEADER {
+ .FspUpdHeaderSignature: resd 2
+ .FspUpdHeaderRevision: resb 1
+ .FspUpdHeaderReserved: resb 23
+ ; }
+ ; FSPT_ARCH2_UPD {
+ .FsptArchRevision: resb 1
+ .FsptArchReserved: resb 3
+ .FsptArchLength: resd 1
+ .FspDebugHandler resq 1
+ .MicrocodeCodeAddr: resq 1
+ .MicrocodeCodeSize: resq 1
+ .CodeRegionBase: resq 1
+ .CodeRegionSize: resq 1
+ ; }
+ .size:
+endstruc
+
+;
+; @todo: The strong/weak implementation does not work.
+; This needs to be reviewed later.
+;
+;------------------------------------------------------------------------------
+;
+;;global ASM_PFX(SecPlatformInitDefault)
+;ASM_PFX(SecPlatformInitDefault):
+; ; Inputs:
+; ; ymm7 -> Return address
+; ; Outputs:
+; ; rax -> 0 - Successful, Non-zero - Failed.
+; ; Register Usage:
+; ; rax is cleared and rbp is used for return address.
+; ; All others reserved.
+;
+; ; Save return address to RBP
+; LOAD_RBP
+;
+; xor rax, rax
+;Exit1:
+; jmp rbp
+
+;------------------------------------------------------------------------------
+global ASM_PFX(LoadMicrocodeDefault)
+ASM_PFX(LoadMicrocodeDefault):
+ ; Inputs:
+ ; rsp -> LoadMicrocodeParams pointer
+ ; Register Usage:
+ ; rsp Preserved
+ ; All others destroyed
+ ; Assumptions:
+ ; No memory available, stack is hard-coded and used for return address
+ ; Executed by SBSP and NBSP
+ ; Beginning of microcode update region starts on paragraph boundary
+
+ ;
+ ; Save return address to RBP
+ ;
+ LOAD_RBP
+
+ cmp rsp, 0
+ jz ParamError
+ mov eax, dword [rsp + 8] ; Parameter pointer
+ cmp eax, 0
+ jz ParamError
+ mov esp, eax
+
+ ; skip loading Microcode if the MicrocodeCodeSize is zero
+ ; and report error if size is less than 2k
+ ; first check UPD header revision
+ cmp byte [rsp + LoadMicrocodeParamsFsp24.FspUpdHeaderRevision], 2
+ jb ParamError
+ cmp byte [rsp + LoadMicrocodeParamsFsp24.FsptArchRevision], 2
+ jne ParamError
+
+ ; UPD structure is compliant with FSP spec 2.4
+ mov eax, dword [rsp + LoadMicrocodeParamsFsp24.MicrocodeCodeSize]
+ cmp eax, 0
+ jz Exit2
+ cmp eax, 0800h
+ jl ParamError
+
+ mov esi, dword [rsp + LoadMicrocodeParamsFsp24.MicrocodeCodeAddr]
+ cmp esi, 0
+ jnz CheckMainHeader
+
+ParamError:
+ mov rax, 08000000000000002h
+ jmp Exit2
+
+CheckMainHeader:
+ ; Get processor signature and platform ID from the installed processor
+ ; and save into registers for later use
+ ; ebx = processor signature
+ ; edx = platform ID
+ mov eax, 1
+ cpuid
+ mov ebx, eax
+ mov ecx, MSR_IA32_PLATFORM_ID
+ rdmsr
+ mov ecx, edx
+ shr ecx, 50-32 ; shift (50d-32d=18d=0x12) bits
+ and ecx, 7h ; platform id at bit[52..50]
+ mov edx, 1
+ shl edx, cl
+
+ ; Current register usage
+ ; esp -> stack with parameters
+ ; esi -> microcode update to check
+ ; ebx = processor signature
+ ; edx = platform ID
+
+ ; Check for valid microcode header
+ ; Minimal test checking for header version and loader version as 1
+ mov eax, dword 1
+ cmp dword [esi + MicrocodeHdr.MicrocodeHdrVersion], eax
+ jne AdvanceFixedSize
+ cmp dword [esi + MicrocodeHdr.MicrocodeHdrLoader], eax
+ jne AdvanceFixedSize
+
+ ; Check if signature and plaform ID match
+ cmp ebx, dword [esi + MicrocodeHdr.MicrocodeHdrProcessor]
+ jne LoadMicrocodeDefault1
+ test edx, dword [esi + MicrocodeHdr.MicrocodeHdrFlags ]
+ jnz LoadCheck ; Jif signature and platform ID match
+
+LoadMicrocodeDefault1:
+ ; Check if extended header exists
+ ; First check if MicrocodeHdrTotalSize and MicrocodeHdrDataSize are valid
+ xor rax, rax
+ cmp dword [esi + MicrocodeHdr.MicrocodeHdrTotalSize], eax
+ je NextMicrocode
+ cmp dword [esi + MicrocodeHdr.MicrocodeHdrDataSize], eax
+ je NextMicrocode
+
+ ; Then verify total size - sizeof header > data size
+ mov ecx, dword [esi + MicrocodeHdr.MicrocodeHdrTotalSize]
+ sub ecx, MicrocodeHdr.size
+ cmp ecx, dword [esi + MicrocodeHdr.MicrocodeHdrDataSize]
+ jng NextMicrocode ; Jif extended header does not exist
+
+ ; Set edi -> extended header
+ mov edi, esi
+ add edi, MicrocodeHdr.size
+ add edi, dword [esi + MicrocodeHdr.MicrocodeHdrDataSize]
+
+ ; Get count of extended structures
+ mov ecx, dword [edi + ExtSigHdr.ExtSigHdrCount]
+
+ ; Move pointer to first signature structure
+ add edi, ExtSigHdr.size
+
+CheckExtSig:
+ ; Check if extended signature and platform ID match
+ cmp dword [edi + ExtSig.ExtSigProcessor], ebx
+ jne LoadMicrocodeDefault2
+ test dword [edi + ExtSig.ExtSigFlags], edx
+ jnz LoadCheck ; Jif signature and platform ID match
+LoadMicrocodeDefault2:
+ ; Check if any more extended signatures exist
+ add edi, ExtSig.size
+ loop CheckExtSig
+
+NextMicrocode:
+ ; Advance just after end of this microcode
+ xor rax, rax
+ cmp dword [esi + MicrocodeHdr.MicrocodeHdrTotalSize], eax
+ je LoadMicrocodeDefault3
+ add esi, dword [esi + MicrocodeHdr.MicrocodeHdrTotalSize]
+ jmp CheckAddress
+LoadMicrocodeDefault3:
+ add esi, dword 2048
+ jmp CheckAddress
+
+AdvanceFixedSize:
+ ; Advance by 4X dwords
+ add esi, dword 1024
+
+CheckAddress:
+ ; Check UPD header revision
+ cmp byte [rsp + LoadMicrocodeParamsFsp24.FspUpdHeaderRevision], 2
+ jb ParamError
+ cmp byte [rsp + LoadMicrocodeParamsFsp24.FsptArchRevision], 2
+ jne ParamError
+
+ ; UPD structure is compliant with FSP spec 2.4
+ ; Is automatic size detection ?
+ mov rax, qword [rsp + LoadMicrocodeParamsFsp24.MicrocodeCodeSize]
+ cmp rax, 0ffffffffffffffffh
+ jz LoadMicrocodeDefault4
+
+ ; Address >= microcode region address + microcode region size?
+ add rax, qword [rsp + LoadMicrocodeParamsFsp24.MicrocodeCodeAddr]
+ cmp rsi, rax
+ jae Done ;Jif address is outside of microcode region
+ jmp CheckMainHeader
+
+LoadMicrocodeDefault4:
+ ; Is valid Microcode start point ?
+ cmp dword [esi + MicrocodeHdr.MicrocodeHdrVersion], 0ffffffffh
+ jz Done
+
+LoadCheck:
+ ; Get the revision of the current microcode update loaded
+ mov ecx, MSR_IA32_BIOS_SIGN_ID
+ xor eax, eax ; Clear EAX
+ xor edx, edx ; Clear EDX
+ wrmsr ; Load 0 to MSR at 8Bh
+
+ mov eax, 1
+ cpuid
+ mov ecx, MSR_IA32_BIOS_SIGN_ID
+ rdmsr ; Get current microcode signature
+
+ ; Verify this microcode update is not already loaded
+ cmp dword [esi + MicrocodeHdr.MicrocodeHdrRevision], edx
+ je Continue
+
+LoadMicrocode:
+ ; EAX contains the linear address of the start of the Update Data
+ ; EDX contains zero
+ ; ECX contains 79h (IA32_BIOS_UPDT_TRIG)
+ ; Start microcode load with wrmsr
+ mov eax, esi
+ add eax, MicrocodeHdr.size
+ xor edx, edx
+ mov ecx, MSR_IA32_BIOS_UPDT_TRIG
+ wrmsr
+ mov eax, 1
+ cpuid
+
+Continue:
+ jmp NextMicrocode
+
+Done:
+ mov eax, 1
+ cpuid
+ mov ecx, MSR_IA32_BIOS_SIGN_ID
+ rdmsr ; Get current microcode signature
+ xor eax, eax
+ cmp edx, 0
+ jnz Exit2
+ mov eax, 0800000000000000Eh
+
+Exit2:
+ jmp rbp
+
+
+global ASM_PFX(EstablishStackFsp)
+ASM_PFX(EstablishStackFsp):
+ ;
+ ; Save parameter pointer in rdx
+ ;
+ mov rdx, qword [rsp + 8]
+
+ ;
+ ; Enable FSP STACK
+ ;
+ mov rax, ASM_PFX(PcdGet32 (PcdTemporaryRamBase))
+ mov esp, DWORD[rax]
+ mov rax, ASM_PFX(PcdGet32 (PcdTemporaryRamSize))
+ add esp, DWORD[rax]
+
+ sub esp, 4
+ mov dword[esp], DATA_LEN_OF_MCUD ; Size of the data region
+ sub esp, 4
+ mov dword[esp], 4455434Dh ; Signature of the data region 'MCUD'
+
+ ; check UPD structure revision (rdx + 8)
+ cmp byte [rdx + LoadMicrocodeParamsFsp24.FspUpdHeaderRevision], 2
+ jb ParamError1
+ cmp byte [rdx + LoadMicrocodeParamsFsp24.FsptArchRevision], 2
+ je Fsp24UpdHeader
+
+ParamError1:
+ mov rax, 08000000000000002h
+ jmp EstablishStackFspExit
+
+Fsp24UpdHeader:
+ ; UPD structure is compliant with FSP spec 2.4
+ xor rax, rax
+ mov rax, qword [rdx + LoadMicrocodeParamsFsp24.CodeRegionSize] ; Code size sizeof(FSPT_UPD_COMMON) + 18h
+ sub rsp, 8
+ mov qword[rsp], rax
+ mov rax, qword [rdx + LoadMicrocodeParamsFsp24.CodeRegionBase] ; Code base sizeof(FSPT_UPD_COMMON) + 10h
+ sub rsp, 8
+ mov qword[rsp], rax
+ mov rax, qword [rdx + LoadMicrocodeParamsFsp24.MicrocodeCodeSize] ; Microcode size sizeof(FSPT_UPD_COMMON) + 8h
+ sub rsp, 8
+ mov qword[rsp], rax
+ mov rax, qword [rdx + LoadMicrocodeParamsFsp24.MicrocodeCodeAddr] ; Microcode base sizeof(FSPT_UPD_COMMON) + 0h
+ sub rsp, 8
+ mov qword[rsp], rax
+
+ContinueAfterUpdPush:
+ ;
+ ; Save API entry/exit timestamp into stack
+ ;
+ sub esp, 4
+ mov dword[esp], DATA_LEN_OF_PER0 ; Size of the data region
+ sub esp, 4
+ mov dword[esp], 30524550h ; Signature of the data region 'PER0'
+ rdtsc
+ sub esp, 4
+ mov dword[esp], edx
+ sub esp, 4
+ mov dword[esp], eax
+ LOAD_TS rax
+ push rax
+
+ ;
+ ; Terminator for the data on stack
+ ;
+ push 0
+
+ ;
+ ; Set ECX/EDX to the BootLoader temporary memory range
+ ;
+ mov rcx, ASM_PFX(PcdGet32 (PcdTemporaryRamBase))
+ mov edx, [ecx]
+ mov rcx, ASM_PFX(PcdGet32 (PcdTemporaryRamSize))
+ add edx, [ecx]
+ mov rcx, ASM_PFX(PcdGet32 (PcdFspReservedBufferSize))
+ sub edx, [ecx]
+ mov rcx, ASM_PFX(PcdGet32 (PcdTemporaryRamBase))
+ mov ecx, [ecx]
+
+ cmp ecx, edx ; If PcdFspReservedBufferSize >= PcdTemporaryRamSize, then error.
+ jb EstablishStackFspSuccess
+ mov rax, 08000000000000003h ; EFI_UNSUPPORTED
+ jmp EstablishStackFspExit
+EstablishStackFspSuccess:
+ xor rax, rax
+
+EstablishStackFspExit:
+ RET_YMM
+
+;----------------------------------------------------------------------------
+; TempRamInit API
+;
+; This FSP API will load the microcode update, enable code caching for the
+; region specified by the boot loader and also setup a temporary stack to be
+; used till main memory is initialized.
+;
+;----------------------------------------------------------------------------
+global ASM_PFX(TempRamInitApi)
+ASM_PFX(TempRamInitApi):
+ ;
+ ; Ensure both SSE and AVX are enabled
+ ;
+ ENABLE_SSE
+ ENABLE_AVX
+
+ ;
+ ; Save RBP, RBX, RSI, RDI and RSP in YMM7, YMM8 and YMM6
+ ;
+ SAVE_REGS
+
+ ;
+ ; Save BFV address in YMM9
+ ;
+ SAVE_BFV rbp
+
+ ;
+ ; Save timestamp into YMM6
+ ;
+ rdtsc
+ shl rdx, 32
+ or rax, rdx
+ SAVE_TS rax
+
+ ;
+ ; Check Parameter
+ ;
+ mov rax, qword [rsp + 8]
+ cmp rax, 0
+ mov rax, 08000000000000002h
+ jz TempRamInitExit
+
+ ;
+ ; Sec Platform Init
+ ;
+ CALL_YMM ASM_PFX(SecPlatformInit)
+ cmp eax, 0
+ jnz TempRamInitExit
+
+ ; Load microcode
+ LOAD_RSP
+ CALL_YMM ASM_PFX(LoadMicrocodeDefault)
+ SAVE_UCODE_STATUS rax ; Save microcode return status in SLOT 0 in YMM9 (upper 128bits).
+ ; @note If return value rax is not 0, microcode did not load, but continue and attempt to boot.
+
+ ; Call Sec CAR Init
+ LOAD_RSP
+ CALL_YMM ASM_PFX(SecCarInit)
+ cmp rax, 0
+ jnz TempRamInitExit
+
+ LOAD_RSP
+ CALL_YMM ASM_PFX(EstablishStackFsp)
+ cmp rax, 0
+ jnz TempRamInitExit
+
+ LOAD_UCODE_STATUS rax ; Restore microcode status if no CAR init error from SLOT 0 in YMM9 (upper 128bits).
+
+TempRamInitExit:
+ mov bl, al ; save al data in bl
+ mov al, 07Fh ; API exit postcode 7f
+ out 080h, al
+ mov al, bl ; restore al data from bl
+
+ ;
+ ; Load RBP, RBX, RSI, RDI and RSP from YMM7, YMM8 and YMM6
+ ;
+ LOAD_REGS
+ LOAD_BFV rbp
+ ret
+
+;----------------------------------------------------------------------------
+; Module Entrypoint API
+;----------------------------------------------------------------------------
+global ASM_PFX(_ModuleEntryPoint)
+ASM_PFX(_ModuleEntryPoint):
+ jmp $
+
diff --git a/IntelFsp2Pkg/FspSecCore/X64/FspHelper.nasm b/IntelFsp2Pkg/FspSecCore/X64/FspHelper.nasm
new file mode 100644
index 0000000000..122fa1d174
--- /dev/null
+++ b/IntelFsp2Pkg/FspSecCore/X64/FspHelper.nasm
@@ -0,0 +1,34 @@
+;; @file
+; Provide FSP helper function.
+;
+; Copyright (c) 2022, Intel Corporation. All rights reserved.<BR>
+; SPDX-License-Identifier: BSD-2-Clause-Patent
+;;
+ DEFAULT REL
+ SECTION .text
+
+global ASM_PFX(AsmGetFspBaseAddress)
+ASM_PFX(AsmGetFspBaseAddress):
+ call ASM_PFX(AsmGetFspInfoHeader)
+ add rax, 0x1C
+ mov eax, [rax]
+ ret
+
+global ASM_PFX(AsmGetFspInfoHeader)
+ASM_PFX(AsmGetFspInfoHeader):
+ lea rax, [ASM_PFX(AsmGetFspInfoHeader)]
+ DB 0x48, 0x2d ; sub rax, 0x????????
+global ASM_PFX(FspInfoHeaderRelativeOff)
+ASM_PFX(FspInfoHeaderRelativeOff):
+ DD 0x12345678 ; This value must be patched by the build script
+ and rax, 0xffffffff
+ ret
+
+global ASM_PFX(AsmGetFspInfoHeaderNoStack)
+ASM_PFX(AsmGetFspInfoHeaderNoStack):
+ lea rax, [ASM_PFX(AsmGetFspInfoHeader)]
+ lea rcx, [ASM_PFX(FspInfoHeaderRelativeOff)]
+ mov ecx, [rcx]
+ sub rax, rcx
+ and rax, 0xffffffff
+ jmp rdi
diff --git a/IntelFsp2Pkg/FspSecCore/X64/MicrocodeLoadNasm.inc b/IntelFsp2Pkg/FspSecCore/X64/MicrocodeLoadNasm.inc
new file mode 100644
index 0000000000..4ec5070d25
--- /dev/null
+++ b/IntelFsp2Pkg/FspSecCore/X64/MicrocodeLoadNasm.inc
@@ -0,0 +1,11 @@
+;; @file
+;
+;@copyright
+; Copyright (c) 2022, Intel Corporation. All rights reserved.<BR>
+; SPDX-License-Identifier: BSD-2-Clause-Patent
+;;
+
+MSR_IA32_PLATFORM_ID equ 000000017h
+MSR_IA32_BIOS_UPDT_TRIG equ 000000079h
+MSR_IA32_BIOS_SIGN_ID equ 00000008bh
+
diff --git a/IntelFsp2Pkg/FspSecCore/X64/ReadRsp.nasm b/IntelFsp2Pkg/FspSecCore/X64/ReadRsp.nasm
new file mode 100644
index 0000000000..af82509803
--- /dev/null
+++ b/IntelFsp2Pkg/FspSecCore/X64/ReadRsp.nasm
@@ -0,0 +1,22 @@
+;; @file
+; Provide read RSP function
+;
+; Copyright (c) 2022, Intel Corporation. All rights reserved.<BR>
+; SPDX-License-Identifier: BSD-2-Clause-Patent
+;;
+;------------------------------------------------------------------------------
+
+ SECTION .text
+
+;------------------------------------------------------------------------------
+; UINTN
+; EFIAPI
+; AsmReadStackPointer (
+; VOID
+; );
+;------------------------------------------------------------------------------
+global ASM_PFX(AsmReadStackPointer)
+ASM_PFX(AsmReadStackPointer):
+ mov rax, rsp
+ ret
+
diff --git a/IntelFsp2Pkg/FspSecCore/X64/Stack.nasm b/IntelFsp2Pkg/FspSecCore/X64/Stack.nasm
new file mode 100644
index 0000000000..0af7f54f6f
--- /dev/null
+++ b/IntelFsp2Pkg/FspSecCore/X64/Stack.nasm
@@ -0,0 +1,73 @@
+;------------------------------------------------------------------------------
+;
+; Copyright (c) 2022, Intel Corporation. All rights reserved.<BR>
+; SPDX-License-Identifier: BSD-2-Clause-Patent
+;
+; Abstract:
+;
+; Switch the stack from temporary memory to permanent memory.
+;
+;------------------------------------------------------------------------------
+
+ SECTION .text
+
+;------------------------------------------------------------------------------
+; VOID
+; EFIAPI
+; SecSwitchStack (
+; UINT64 TemporaryMemoryBase,
+; UINT64 PermanentMemoryBase
+; );
+;------------------------------------------------------------------------------
+global ASM_PFX(SecSwitchStack)
+ASM_PFX(SecSwitchStack):
+ ;
+ ; Save four register: rax, rbx, rcx, rdx
+ ;
+ push rax
+ push rbx
+ push rcx
+ push rdx
+
+ ;
+ ; !!CAUTION!! this function address's is pushed into stack after
+ ; migration of whole temporary memory, so need save it to permanent
+ ; memory at first!
+ ;
+
+ mov rbx, rcx ; Save the first parameter
+ mov rcx, rdx ; Save the second parameter
+
+ ;
+ ; Save this function's return address into permanent memory at first.
+ ; Then, Fixup the esp point to permanent memory
+ ;
+ mov rax, rsp
+ sub rax, rbx
+ add rax, rcx
+ mov rdx, qword [rsp] ; copy pushed register's value to permanent memory
+ mov qword [rax], rdx
+ mov rdx, qword [rsp + 8]
+ mov qword [rax + 8], rdx
+ mov rdx, qword [rsp + 16]
+ mov qword [rax + 16], rdx
+ mov rdx, qword [rsp + 24]
+ mov qword [rax + 24], rdx
+ mov rdx, qword [rsp + 32] ; Update this function's return address into permanent memory
+ mov qword [rax + 32], rdx
+ mov rsp, rax ; From now, rsp is pointed to permanent memory
+
+ ;
+ ; Fixup the rbp point to permanent memory
+ ;
+ mov rax, rbp
+ sub rax, rbx
+ add rax, rcx
+ mov rbp, rax ; From now, rbp is pointed to permanent memory
+
+ pop rdx
+ pop rcx
+ pop rbx
+ pop rax
+ ret
+
--git a/IntelFsp2Pkg/Include/Guid/FspHeaderFile.h b/IntelFsp2Pkg/Include/Guid/FspHeaderFile.h
index e5a9d7a2b4..79ad57116a 100644
--- a/IntelFsp2Pkg/Include/Guid/FspHeaderFile.h
+++ b/IntelFsp2Pkg/Include/Guid/FspHeaderFile.h
@@ -7,6 +7,8 @@
**/
+#include <Base.h>
+
#ifndef __FSP_HEADER_FILE_H__
#define __FSP_HEADER_FILE_H__
@@ -24,6 +26,12 @@
#define FSP_INFO_HEADER_SIGNATURE SIGNATURE_32 ('F', 'S', 'P', 'H')
+#define IMAGE_ATTRIBUTE_GRAPHICS_SUPPORT BIT0
+#define IMAGE_ATTRIBUTE_DISPATCH_MODE_SUPPORT BIT1
+#define IMAGE_ATTRIBUTE_64BIT_MODE_SUPPORT BIT2
+#define FSP_IA32 0
+#define FSP_X64 1
+
#pragma pack(1)
///
@@ -49,7 +57,7 @@ typedef struct {
UINT8 SpecVersion;
///
/// Byte 0x0B: Revision of the FSP Information Header.
- /// The Current value for this field is 0x6.
+ /// The Current value for this field is 0x7.
///
UINT8 HeaderRevision;
///
@@ -82,6 +90,10 @@ typedef struct {
UINT32 ImageBase;
///
/// Byte 0x20: Attribute for the FSP binary.
+ /// Bit 0: Graphics Support - Set to 1 when FSP supports enabling Graphics Display.
+ /// Bit 1: Dispatch Mode Support - Set to 1 when FSP supports the optional Dispatch Mode API defined in Section 7.2 and 9. This bit is only valid if FSP HeaderRevision is >= 4.
+ /// Bit 2: 64-bit mode support - Set to 1 to indicate FSP supports 64-bit long mode interfaces. Set to 0 to indicate FSP supports 32-bit mode interfaces. This bit is only valid if FSP HeaderRevision is >= 7.
+ /// Bits 15:3 - Reserved
///
UINT16 ImageAttribute;
///
diff --git a/IntelFsp2Pkg/Include/SaveRestoreSseAvxNasm.inc b/IntelFsp2Pkg/Include/SaveRestoreSseAvxNasm.inc
new file mode 100644
index 0000000000..e8bd91669d
--- /dev/null
+++ b/IntelFsp2Pkg/Include/SaveRestoreSseAvxNasm.inc
@@ -0,0 +1,284 @@
+;------------------------------------------------------------------------------
+;
+; Copyright (c) 2022, Intel Corporation. All rights reserved.<BR>
+; SPDX-License-Identifier: BSD-2-Clause-Patent
+;
+; Abstract:
+;
+; Provide macro for register save/restore using SSE registers
+;
+;------------------------------------------------------------------------------
+
+;
+; Define SSE and AVX instruction set
+;
+;
+; Define SSE macros using SSE 4.1 instructions
+; args 1:XMM, 2:IDX, 3:REG
+;
+%macro SXMMN 3
+ pinsrq %1, %3, (%2 & 3)
+ %endmacro
+
+;
+; args 1:XMM, 2:REG, 3:IDX
+;
+%macro LXMMN 3
+ pextrq %2, %1, (%3 & 3)
+ %endmacro
+
+;
+; Define AVX macros using AVX instructions
+; Save XMM to YMM
+; args 1:YMM, 2:IDX (0 - lower 128bits, 1 - upper 128bits), 3:XMM
+;
+%macro SYMMN 3
+ vinsertf128 %1, %1, %3, %2
+ %endmacro
+
+;
+; Restore XMM from YMM
+; args 1:YMM, 2:XMM, 3:IDX (0 - lower 128bits, 1 - upper 128bits)
+;
+%macro LYMMN 3
+ vextractf128 %2, %1, %3
+ %endmacro
+
+;
+; Upper half of YMM7 to save RBP and RBX. Upper half of YMM8 to save RSI and RDI.
+; Modified: XMM5, YMM6, YMM7 and YMM8
+;
+%macro SAVE_REGS 0
+ SXMMN xmm5, 0, rbp
+ SXMMN xmm5, 1, rbx
+ SYMMN ymm7, 1, xmm5
+ SXMMN xmm5, 0, rsi
+ SXMMN xmm5, 1, rdi
+ SYMMN ymm8, 1, xmm5
+ SAVE_RSP
+ %endmacro
+
+;
+; Upper half of YMM7 to restore RBP and RBX. Upper half of YMM8 to restore RSI and RDI.
+; Modified: XMM5, RBP, RBX, RSI, RDI and RSP
+;
+%macro LOAD_REGS 0
+ LYMMN ymm7, xmm5, 1
+ LXMMN xmm5, rbp, 0
+ LXMMN xmm5, rbx, 1
+ LYMMN ymm8, xmm5, 1
+ LXMMN xmm5, rsi, 0
+ LXMMN xmm5, rdi, 1
+ LOAD_RSP
+ %endmacro
+;
+; Restore RBP from YMM7[128:191]
+; Modified: XMM5 and RBP
+;
+%macro LOAD_RBP 0
+ LYMMN ymm7, xmm5, 1
+ movq rbp, xmm5
+ %endmacro
+
+;
+; Restore RBX from YMM7[192:255]
+; Modified: XMM5 and RBX
+;
+%macro LOAD_RBX 0
+ LYMMN ymm7, xmm5, 1
+ LXMMN xmm5, rbx, 1
+ %endmacro
+
+;
+; Upper half of YMM6 to save/restore Time Stamp, RSP
+;
+;
+; Save Time Stamp to YMM6[192:255]
+; arg 1:general purpose register which holds time stamp
+; Modified: XMM5 and YMM6
+;
+%macro SAVE_TS 1
+ LYMMN ymm6, xmm5, 1
+ SXMMN xmm5, 1, %1
+ SYMMN ymm6, 1, xmm5
+ %endmacro
+
+;
+; Restore Time Stamp from YMM6[192:255]
+; arg 1:general purpose register where to save time stamp
+; Modified: XMM5 and %1
+;
+%macro LOAD_TS 1
+ LYMMN ymm6, xmm5, 1
+ LXMMN xmm5, %1, 1
+ %endmacro
+
+;
+; Save RSP to YMM6[128:191]
+; Modified: XMM5 and YMM6
+;
+%macro SAVE_RSP 0
+ LYMMN ymm6, xmm5, 1
+ SXMMN xmm5, 0, rsp
+ SYMMN ymm6, 1, xmm5
+ %endmacro
+
+;
+; Restore RSP from YMM6[128:191]
+; Modified: XMM5 and RSP
+;
+%macro LOAD_RSP 0
+ LYMMN ymm6, xmm5, 1
+ movq rsp, xmm5
+ %endmacro
+
+;
+; Upper half of YMM9 to save/restore UCODE status, BFV address
+;
+;
+; Save uCode status to YMM9[192:255]
+; arg 1:general purpose register which holds uCode status
+; Modified: XMM5 and YMM9
+;
+%macro SAVE_UCODE_STATUS 1
+ LYMMN ymm9, xmm5, 1
+ SXMMN xmm5, 0, %1
+ SYMMN ymm9, 1, xmm5
+ %endmacro
+
+;
+; Restore uCode status from YMM9[192:255]
+; arg 1:general purpose register where to save uCode status
+; Modified: XMM5 and %1
+;
+%macro LOAD_UCODE_STATUS 1
+ LYMMN ymm9, xmm5, 1
+ movq %1, xmm5
+ %endmacro
+
+;
+; Save BFV address to YMM9[128:191]
+; arg 1:general purpose register which holds BFV address
+; Modified: XMM5 and YMM9
+;
+%macro SAVE_BFV 1
+ LYMMN ymm9, xmm5, 1
+ SXMMN xmm5, 1, %1
+ SYMMN ymm9, 1, xmm5
+ %endmacro
+
+;
+; Restore BFV address from YMM9[128:191]
+; arg 1:general purpose register where to save BFV address
+; Modified: XMM5 and %1
+;
+%macro LOAD_BFV 1
+ LYMMN ymm9, xmm5, 1
+ LXMMN xmm5, %1, 1
+ %endmacro
+
+;
+; YMM7[128:191] for calling stack
+; arg 1:Entry
+; Modified: RSI, XMM5, YMM7
+;
+%macro CALL_YMM 1
+ mov rsi, %%ReturnAddress
+ LYMMN ymm7, xmm5, 1
+ SXMMN xmm5, 0, rsi
+ SYMMN ymm7, 1, xmm5
+ mov rsi, %1
+ jmp rsi
+%%ReturnAddress:
+ %endmacro
+;
+; Restore RIP from YMM7[128:191]
+; Modified: RSI, XMM5
+;
+%macro RET_YMM 0
+ LYMMN ymm7, xmm5, 1
+ movq rsi, xmm5
+ jmp rsi
+ %endmacro
+
+%macro ENABLE_SSE 0
+ ;
+ ; Initialize floating point units
+ ;
+ jmp NextAddress
+align 4
+ ;
+ ; Float control word initial value:
+ ; all exceptions masked, double-precision, round-to-nearest
+ ;
+FpuControlWord DW 027Fh
+ ;
+ ; Multimedia-extensions control word:
+ ; all exceptions masked, round-to-nearest, flush to zero for masked underflow
+ ;
+MmxControlWord DQ 01F80h
+SseError:
+ ;
+ ; Processor has to support SSE
+ ;
+ jmp SseError
+NextAddress:
+ finit
+ mov rax, FpuControlWord
+ fldcw [rax]
+
+ ;
+ ; Use CpuId instruction (CPUID.01H:EDX.SSE[bit 25] = 1) to test
+ ; whether the processor supports SSE instruction.
+ ;
+ mov rax, 1
+ cpuid
+ bt rdx, 25
+ jnc SseError
+
+ ;
+ ; SSE 4.1 support
+ ;
+ bt ecx, 19
+ jnc SseError
+
+ ;
+ ; Set OSFXSR bit (bit #9) & OSXMMEXCPT bit (bit #10)
+ ;
+ mov rax, cr4
+ or rax, 00000600h
+ mov cr4, rax
+
+ ;
+ ; The processor should support SSE instruction and we can use
+ ; ldmxcsr instruction
+ ;
+ mov rax, MmxControlWord
+ ldmxcsr [rax]
+ %endmacro
+
+%macro ENABLE_AVX 0
+ mov eax, 1
+ cpuid
+ and ecx, 10000000h
+ cmp ecx, 10000000h ; check AVX feature flag
+ je EnableAvx
+AvxError:
+ ;
+ ; Processor has to support AVX
+ ;
+ jmp AvxError
+EnableAvx:
+ ;
+ ; Set OSXSAVE bit (bit #18) to enable xgetbv/xsetbv instruction
+ ;
+ mov rax, cr4
+ or rax, 00040000h
+ mov cr4, rax
+
+ mov rcx, 0 ; index 0
+ xgetbv ; result in edx:eax
+ or eax, 00000006h ; Set XCR0 bit #1 and bit #2 to enable SSE state and AVX state
+ xsetbv
+ %endmacro
+
diff --git a/IntelFsp2Pkg/Library/BaseFspCommonLib/FspCommonLib.c b/IntelFsp2Pkg/Library/BaseFspCommonLib/FspCommonLib.c
index cd10b63c95..7aac68bf23 100644
--- a/IntelFsp2Pkg/Library/BaseFspCommonLib/FspCommonLib.c
+++ b/IntelFsp2Pkg/Library/BaseFspCommonLib/FspCommonLib.c
@@ -54,6 +54,7 @@ typedef struct {
UINT32 Flags[2];
UINT64 FspInfoHeader;
UINT64 ApiParam[2];
+ UINT64 Reserved; // The reserved QWORD is needed for stack alignment in X64.
UINT64 ApiRet; // 64bit stack format is different from the 32bit one due to x64 calling convention
} CONTEXT_STACK_64;
diff --git a/IntelFsp2Pkg/Library/BaseFspSwitchStackLib/X64/Stack.nasm b/IntelFsp2Pkg/Library/BaseFspSwitchStackLib/X64/Stack.nasm
index bd36fe4b8b..1ea1220608 100644
--- a/IntelFsp2Pkg/Library/BaseFspSwitchStackLib/X64/Stack.nasm
+++ b/IntelFsp2Pkg/Library/BaseFspSwitchStackLib/X64/Stack.nasm
@@ -47,7 +47,8 @@ ASM_PFX(Loader2PeiSwitchStack):
;------------------------------------------------------------------------------
global ASM_PFX(FspSwitchStack)
ASM_PFX(FspSwitchStack):
- ; Save current contexts
+ ; Save current contexts. The format must align with CONTEXT_STACK_64.
+ push rdx ; Reserved QWORD for stack alignment
push rdx ; ApiParam2
push rcx ; ApiParam1
push rax ; FspInfoHeader
@@ -67,6 +68,6 @@ ASM_PFX(FspSwitchStack):
add rsp, 16
POPA_64
popfq
- add rsp, 24 ; FspInfoHeader + ApiParam[2]
+ add rsp, 32 ; FspInfoHeader + ApiParam[2] + Reserved QWORD
ret
--
2.16.2.windows.1
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