From 78cf66eebbdbc4e6b068923185d6c61c549a7279 Mon Sep 17 00:00:00 2001 From: Liming Gao Date: Tue, 14 Jun 2016 16:31:13 +0800 Subject: [PATCH] UefiCpuPkg PiSmmCpuDxeSmm: Convert X64/MpFuncs.asm to NASM The BaseTools/Scripts/ConvertMasmToNasm.py script was used to convert X64/MpFuncs.asm to X64/MpFuncs.nasm And, manually update it to pass build. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Liming Gao --- UefiCpuPkg/PiSmmCpuDxeSmm/X64/MpFuncs.nasm | 204 +++++++++++++++++++++ 1 file changed, 204 insertions(+) create mode 100644 UefiCpuPkg/PiSmmCpuDxeSmm/X64/MpFuncs.nasm diff --git a/UefiCpuPkg/PiSmmCpuDxeSmm/X64/MpFuncs.nasm b/UefiCpuPkg/PiSmmCpuDxeSmm/X64/MpFuncs.nasm new file mode 100644 index 0000000000..a10f1ff859 --- /dev/null +++ b/UefiCpuPkg/PiSmmCpuDxeSmm/X64/MpFuncs.nasm @@ -0,0 +1,204 @@ +;------------------------------------------------------------------------------ ; +; Copyright (c) 2016, Intel Corporation. All rights reserved.
+; 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 +; http://opensource.org/licenses/bsd-license.php. +; +; THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, +; WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. +; +; Module Name: +; +; MpFuncs.nasm +; +; Abstract: +; +; This is the assembly code for Multi-processor S3 support +; +;------------------------------------------------------------------------------- + +extern ASM_PFX(InitializeFloatingPointUnits) + +%define VacantFlag 0x0 +%define NotVacantFlag 0xff + +%define LockLocation RendezvousFunnelProcEnd - RendezvousFunnelProcStart +%define StackStartAddressLocation LockLocation + 0x8 +%define StackSizeLocation LockLocation + 0x10 +%define CProcedureLocation LockLocation + 0x18 +%define GdtrLocation LockLocation + 0x20 +%define IdtrLocation LockLocation + 0x2A +%define BufferStartLocation LockLocation + 0x34 +%define Cr3OffsetLocation LockLocation + 0x38 + +;------------------------------------------------------------------------------------- +;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); + +;text SEGMENT +DEFAULT REL +SECTION .text + +global ASM_PFX(RendezvousFunnelProc) +ASM_PFX(RendezvousFunnelProc): +RendezvousFunnelProcStart: + +; At this point CS = 0x(vv00) and ip= 0x0. + + db 0x8c, 0xc8 ; mov ax, cs + db 0x8e, 0xd8 ; mov ds, ax + db 0x8e, 0xc0 ; mov es, ax + db 0x8e, 0xd0 ; mov ss, ax + db 0x33, 0xc0 ; xor ax, ax + db 0x8e, 0xe0 ; mov fs, ax + db 0x8e, 0xe8 ; mov gs, ax + +flat32Start: + + db 0xBE + dw BufferStartLocation ; mov si, BufferStartLocation + db 0x66, 0x8B, 0x14 ; mov edx,dword ptr [si] ; EDX is keeping the start address of wakeup buffer + + db 0xBE + dw Cr3OffsetLocation ; mov si, Cr3Location + db 0x66, 0x8B, 0xC ; mov ecx,dword ptr [si] ; ECX is keeping the value of CR3 + + db 0xBE + dw GdtrLocation ; mov si, GdtrProfile + db 0x66 ; db 66h + db 0x2E, 0xF, 0x1, 0x14 ; lgdt fword ptr cs:[si] + + db 0xBE + dw IdtrLocation ; mov si, IdtrProfile + db 0x66 ; db 66h + db 0x2E, 0xF, 0x1, 0x1C ; lidt fword ptr cs:[si] + + db 0x33, 0xC0 ; xor ax, ax + db 0x8E, 0xD8 ; mov ds, ax + + db 0xF, 0x20, 0xC0 ; mov eax, cr0 ; Get control register 0 + db 0x66, 0x83, 0xC8, 0x1 ; or eax, 000000001h ; Set PE bit (bit #0) + db 0xF, 0x22, 0xC0 ; mov cr0, eax + +FLAT32_JUMP: + + db 0x66, 0x67, 0xEA ; far jump + dd 0x0 ; 32-bit offset + dw 0x20 ; 16-bit selector + +PMODE_ENTRY: ; protected mode entry point + + db 0x66, 0xB8, 0x18, 0x0 ; mov ax, 18h + db 0x66, 0x8E, 0xD8 ; mov ds, ax + db 0x66, 0x8E, 0xC0 ; mov es, ax + db 0x66, 0x8E, 0xE0 ; mov fs, ax + db 0x66, 0x8E, 0xE8 ; mov gs, ax + db 0x66, 0x8E, 0xD0 ; mov ss, ax ; Flat mode setup. + + db 0xF, 0x20, 0xE0 ; mov eax, cr4 + db 0xF, 0xBA, 0xE8, 0x5 ; bts eax, 5 + db 0xF, 0x22, 0xE0 ; mov cr4, eax + + db 0xF, 0x22, 0xD9 ; mov cr3, ecx + + db 0x8B, 0xF2 ; mov esi, edx ; Save wakeup buffer address + + db 0xB9 + dd 0xC0000080 ; mov ecx, 0c0000080h ; EFER MSR number. + db 0xF, 0x32 ; rdmsr ; Read EFER. + db 0xF, 0xBA, 0xE8, 0x8 ; bts eax, 8 ; Set LME=1. + db 0xF, 0x30 ; wrmsr ; Write EFER. + + db 0xF, 0x20, 0xC0 ; mov eax, cr0 ; Read CR0. + db 0xF, 0xBA, 0xE8, 0x1F ; bts eax, 31 ; Set PG=1. + db 0xF, 0x22, 0xC0 ; mov cr0, eax ; Write CR0. + +LONG_JUMP: + + db 0x67, 0xEA ; far jump + dd 0x0 ; 32-bit offset + dw 0x38 ; 16-bit selector + +LongModeStart: + + mov ax, 0x30 +o16 mov ds, ax +o16 mov es, ax +o16 mov ss, ax + + 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, StackSizeLocation + mov rax, qword [edi] + mov edi, esi + add edi, StackStartAddressLocation + add rax, qword [edi] + mov rsp, rax + mov qword [edi], rax + +Releaselock: + + mov al, VacantFlag + mov edi, esi + add edi, LockLocation + xchg byte [edi], al + + ; + ; Call assembly function to initialize FPU. + ; + mov rax, ASM_PFX(InitializeFloatingPointUnits) + sub rsp, 0x20 + call rax + add rsp, 0x20 + + ; + ; Call C Function + ; + mov edi, esi + add edi, CProcedureLocation + mov rax, qword [edi] + + test rax, rax + jz GoToSleep + + sub rsp, 0x20 + call rax + add rsp, 0x20 + +GoToSleep: + cli + hlt + jmp $-2 + +RendezvousFunnelProcEnd: + +;------------------------------------------------------------------------------------- +; AsmGetAddressMap (&AddressMap); +;------------------------------------------------------------------------------------- +; comments here for definition of address map +global ASM_PFX(AsmGetAddressMap) +ASM_PFX(AsmGetAddressMap): + mov rax, RendezvousFunnelProcStart + mov qword [rcx], rax + mov qword [rcx+0x8], PMODE_ENTRY - RendezvousFunnelProcStart + mov qword [rcx+0x10], FLAT32_JUMP - RendezvousFunnelProcStart + mov qword [rcx+0x18], RendezvousFunnelProcEnd - RendezvousFunnelProcStart + mov qword [rcx+0x20], LongModeStart - RendezvousFunnelProcStart + mov qword [rcx+0x28], LONG_JUMP - RendezvousFunnelProcStart + ret + -- 2.39.2