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-rw-r--r--IntelFsp2Pkg/FspSecCore/X64/Fsp24ApiEntryM.nasm303
-rw-r--r--IntelFsp2Pkg/FspSecCore/X64/Fsp24ApiEntryS.nasm108
-rw-r--r--IntelFsp2Pkg/FspSecCore/X64/FspApiEntryCommon.nasm3
3 files changed, 414 insertions, 0 deletions
diff --git a/IntelFsp2Pkg/FspSecCore/X64/Fsp24ApiEntryM.nasm b/IntelFsp2Pkg/FspSecCore/X64/Fsp24ApiEntryM.nasm
new file mode 100644
index 0000000..8880721
--- /dev/null
+++ b/IntelFsp2Pkg/FspSecCore/X64/Fsp24ApiEntryM.nasm
@@ -0,0 +1,303 @@
+;; @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_FSP24
+ ; 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
+ .Reserved1: resb 24
+ ; }
+ .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)
+extern ASM_PFX(FspMultiPhaseMemInitApiHandler)
+
+STACK_SAVED_RAX_OFFSET EQU 8 * 7 ; size of a general purpose register * rax index
+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 rax, 3 ; FSP_API_INDEX.FspMemoryInitApiIndex
+ jmp ASM_PFX(FspApiCommon)
+
+;----------------------------------------------------------------------------
+; FspMultiPhaseMemoryInitApi API
+;
+; This FSP API provides multi-phase Memory initialization, which brings greater
+; modularity beyond the existing FspMemoryInit() API.
+; Increased modularity is achieved by adding an extra API to FSP-M.
+; This allows the bootloader to add board specific initialization steps throughout
+; the MemoryInit flow as needed.
+;
+;----------------------------------------------------------------------------
+global ASM_PFX(FspMultiPhaseMemoryInitApi)
+ASM_PFX(FspMultiPhaseMemoryInitApi):
+ mov rax, 8 ; FSP_API_INDEX.FspMultiPhaseMemInitApiIndex
+ jmp ASM_PFX(FspApiCommon)
+;----------------------------------------------------------------------------
+; TempRamExitApi API
+;
+; This API tears down temporary RAM
+;
+;----------------------------------------------------------------------------
+global ASM_PFX(TempRamExitApi)
+ASM_PFX(TempRamExitApi):
+ mov rax, 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):
+ ;
+ ; Handle FspMultiPhaseMemoInitApiIndex API
+ ;
+ push rdx ; Push a QWORD data for stack alignment
+
+ cmp rax, 8 ; FspMultiPhaseMemInitApiIndex
+ jnz NotMultiPhaseMemoryInitApi
+
+ PUSHA_64
+ mov rdx, rcx ; move ApiParam to rdx
+ mov rcx, rax ; move ApiIdx to rcx
+ sub rsp, 0x20 ; calling C function may need shadow space
+ call ASM_PFX(FspMultiPhaseMemInitApiHandler)
+ add rsp, 0x20 ; restore shadow space
+ mov qword [rsp + STACK_SAVED_RAX_OFFSET], rax
+ POPA_64
+ add rsp, 0x08
+ ret
+
+NotMultiPhaseMemoryInitApi:
+ ; Push RDX and RCX to form CONTEXT_STACK_64
+ 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:
+ mov cl, [rdx + FSPM_UPD_COMMON_FSP24.Revision]
+ cmp cl, 3
+ jae FspmUpdCommonFsp24
+
+ mov rax, 08000000000000002h ; RETURN_INVALID_PARAMETER
+ sub rsp, 0b8h
+ ret
+
+FspmUpdCommonFsp24:
+ ;
+ ; StackBase = temp memory base, StackSize = temp memory size
+ ;
+ mov rdi, [rdx + FSPM_UPD_COMMON_FSP24.StackBase]
+ mov ecx, [rdx + FSPM_UPD_COMMON_FSP24.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_FSP24.StackBase and will hold ESP later (boot loader stack pointer)
+ ; ECX is FSPM_UPD_COMMON_FSP24.StackSize
+ ; ESP is boot loader stack pointer (no stack switch)
+ ; BL is 0 to indicate no stack switch (EBX will hold FSPM_UPD_COMMON_FSP24.StackBase later)
+ ;
+ ; If heap size % is not 0
+ ; EDI is boot loader stack pointer
+ ; ECX is FSPM_UPD_COMMON_FSP24.StackSize
+ ; ESP is new stack (FSPM_UPD_COMMON_FSP24.StackBase + FSPM_UPD_COMMON_FSP24.StackSize)
+ ; BL is NOT 0 to indicate stack has switched
+ ;
+ cmp bl, 0
+ jnz StackHasBeenSwitched
+
+ mov rbx, rdi ; Put FSPM_UPD_COMMON_FSP24.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 patched 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/Fsp24ApiEntryS.nasm b/IntelFsp2Pkg/FspSecCore/X64/Fsp24ApiEntryS.nasm
new file mode 100644
index 0000000..5bbbc5d
--- /dev/null
+++ b/IntelFsp2Pkg/FspSecCore/X64/Fsp24ApiEntryS.nasm
@@ -0,0 +1,108 @@
+;; @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(FspMultiPhaseSiInitApiHandlerV2)
+
+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 rax, 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 rax, 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 rax, 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
+ ;
+ push rdx ; Push a QWORD data for stack alignment
+
+ cmp rax, 6 ; FSP_API_INDEX.FspMultiPhaseSiInitApiIndex
+ jnz NotMultiPhaseSiInitApi
+
+ PUSHA_64
+ mov rdx, rcx ; move ApiParam to rdx
+ mov rcx, rax ; move ApiIdx to rcx
+ sub rsp, 0x20 ; calling C function may need shadow space
+ call ASM_PFX(FspMultiPhaseSiInitApiHandlerV2)
+ add rsp, 0x20 ; restore shadow space
+ mov qword [rsp + STACK_SAVED_RAX_OFFSET], rax
+ POPA_64
+ add rsp, 0x08
+ 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
index 718e672..dc6b8c9 100644
--- a/IntelFsp2Pkg/FspSecCore/X64/FspApiEntryCommon.nasm
+++ b/IntelFsp2Pkg/FspSecCore/X64/FspApiEntryCommon.nasm
@@ -68,6 +68,9 @@ FspApiCommon2:
cmp rax, 6 ; FspMultiPhaseSiInitApiIndex API
jz FspApiCommon3
+ cmp rax, 8 ; FspMultiPhaseMemInitApiIndex API
+ jz FspApiCommon3
+
call ASM_PFX(AsmGetFspInfoHeader)
jmp ASM_PFX(Loader2PeiSwitchStack)
generated by cgit v1.1 at 2024-08-16 19:44:30 +0000