diff options
Diffstat (limited to 'UefiCpuPkg/PiSmmCpuDxeSmm/Ia32/MpFuncs.nasm')
| -rw-r--r-- | UefiCpuPkg/PiSmmCpuDxeSmm/Ia32/MpFuncs.nasm | 153 |
1 files changed, 0 insertions, 153 deletions
diff --git a/UefiCpuPkg/PiSmmCpuDxeSmm/Ia32/MpFuncs.nasm b/UefiCpuPkg/PiSmmCpuDxeSmm/Ia32/MpFuncs.nasm deleted file mode 100644 index dbd1418c0d..0000000000 --- a/UefiCpuPkg/PiSmmCpuDxeSmm/Ia32/MpFuncs.nasm +++ /dev/null @@ -1,153 +0,0 @@ -;------------------------------------------------------------------------------ ;
-; Copyright (c) 2016, Intel Corporation. All rights reserved.<BR>
-; SPDX-License-Identifier: BSD-2-Clause-Patent
-;
-; Module Name:
-;
-; MpFuncs.nasm
-;
-; Abstract:
-;
-; This is the assembly code for Multi-processor S3 support
-;
-;-------------------------------------------------------------------------------
-
-SECTION .text
-
-extern ASM_PFX(InitializeFloatingPointUnits)
-
-%define VacantFlag 0x0
-%define NotVacantFlag 0xff
-
-%define LockLocation RendezvousFunnelProcEnd - RendezvousFunnelProcStart
-%define StackStart LockLocation + 0x4
-%define StackSize LockLocation + 0x8
-%define RendezvousProc LockLocation + 0xC
-%define GdtrProfile LockLocation + 0x10
-%define IdtrProfile LockLocation + 0x16
-%define BufferStart LockLocation + 0x1C
-
-;-------------------------------------------------------------------------------------
-;RendezvousFunnelProc procedure follows. All APs execute their procedure. This
-;procedure serializes all the AP processors through an Init sequence. It must be
-;noted that APs arrive here very raw...ie: real mode, no stack.
-;ALSO THIS PROCEDURE IS EXECUTED BY APs ONLY ON 16 BIT MODE. HENCE THIS PROC
-;IS IN MACHINE CODE.
-;-------------------------------------------------------------------------------------
-;RendezvousFunnelProc (&WakeUpBuffer,MemAddress);
-
-BITS 16
-global ASM_PFX(RendezvousFunnelProc)
-ASM_PFX(RendezvousFunnelProc):
-RendezvousFunnelProcStart:
-
-; At this point CS = 0x(vv00) and ip= 0x0.
-
- mov ax, cs
- mov ds, ax
- mov es, ax
- mov ss, ax
- xor ax, ax
- mov fs, ax
- mov gs, ax
-
-flat32Start:
-
- mov si, BufferStart
- mov edx,dword [si] ; EDX is keeping the start address of wakeup buffer
-
- mov si, GdtrProfile
-o32 lgdt [cs:si]
-
- mov si, IdtrProfile
-o32 lidt [cs:si]
-
- xor ax, ax
- mov ds, ax
-
- mov eax, cr0 ; Get control register 0
- or eax, 0x000000001 ; Set PE bit (bit #0)
- mov cr0, eax
-
-FLAT32_JUMP:
-
-a32 jmp dword 0x20:0x0
-
-BITS 32
-PMODE_ENTRY: ; protected mode entry point
-
- mov ax, 0x8
-o16 mov ds, ax
-o16 mov es, ax
-o16 mov fs, ax
-o16 mov gs, ax
-o16 mov ss, ax ; Flat mode setup.
-
- mov esi, edx
-
- mov edi, esi
- add edi, LockLocation
- mov al, NotVacantFlag
-TestLock:
- xchg byte [edi], al
- cmp al, NotVacantFlag
- jz TestLock
-
-ProgramStack:
-
- mov edi, esi
- add edi, StackSize
- mov eax, dword [edi]
- mov edi, esi
- add edi, StackStart
- add eax, dword [edi]
- mov esp, eax
- mov dword [edi], eax
-
-Releaselock:
-
- mov al, VacantFlag
- mov edi, esi
- add edi, LockLocation
- xchg byte [edi], al
-
- ;
- ; Call assembly function to initialize FPU.
- ;
- mov ebx, ASM_PFX(InitializeFloatingPointUnits)
- call ebx
- ;
- ; Call C Function
- ;
- mov edi, esi
- add edi, RendezvousProc
- mov eax, dword [edi]
-
- test eax, eax
- jz GoToSleep
- call eax ; Call C function
-
-GoToSleep:
- cli
- hlt
- jmp $-2
-
-RendezvousFunnelProcEnd:
-;-------------------------------------------------------------------------------------
-; AsmGetAddressMap (&AddressMap);
-;-------------------------------------------------------------------------------------
-global ASM_PFX(AsmGetAddressMap)
-ASM_PFX(AsmGetAddressMap):
-
- pushad
- mov ebp,esp
-
- mov ebx, dword [ebp+0x24]
- mov dword [ebx], RendezvousFunnelProcStart
- mov dword [ebx+0x4], PMODE_ENTRY - RendezvousFunnelProcStart
- mov dword [ebx+0x8], FLAT32_JUMP - RendezvousFunnelProcStart
- mov dword [ebx+0xc], RendezvousFunnelProcEnd - RendezvousFunnelProcStart
-
- popad
- ret
-
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