mirror of https://github.com/acidanthera/audk.git
201 lines
8.1 KiB
ArmAsm
201 lines
8.1 KiB
ArmAsm
#------------------------------------------------------------------------------
|
|
# X64 assembly file for AP startup vector.
|
|
#
|
|
# Copyright (c) 2009 - 2010, Intel Corporation. All rights reserved.<BR>
|
|
# 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.
|
|
#
|
|
#------------------------------------------------------------------------------
|
|
|
|
|
|
.set VacantFlag, 0x0
|
|
.set NotVacantFlag, 0xff
|
|
|
|
.set LockLocation, RendezvousFunnelProcEnd - RendezvousFunnelProcStart
|
|
.set StackStartAddressLocation, RendezvousFunnelProcEnd - RendezvousFunnelProcStart + 0x08
|
|
.set StackSizeLocation, RendezvousFunnelProcEnd - RendezvousFunnelProcStart + 0x10
|
|
.set CProcedureLocation, RendezvousFunnelProcEnd - RendezvousFunnelProcStart + 0x18
|
|
.set GdtrLocation, RendezvousFunnelProcEnd - RendezvousFunnelProcStart + 0x20
|
|
.set IdtrLocation, RendezvousFunnelProcEnd - RendezvousFunnelProcStart + 0x2A
|
|
.set BufferStartLocation, RendezvousFunnelProcEnd - RendezvousFunnelProcStart + 0x34
|
|
.set Cr3OffsetLocation, RendezvousFunnelProcEnd - RendezvousFunnelProcStart + 0x38
|
|
.set ProcessorNumberLocation, RendezvousFunnelProcEnd - RendezvousFunnelProcStart + 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
|
|
|
|
ASM_GLOBAL ASM_PFX(RendezvousFunnelProc)
|
|
ASM_PFX(RendezvousFunnelProc):
|
|
RendezvousFunnelProcStart:
|
|
|
|
# At this point CS = 0x(vv00) and ip= 0x0.
|
|
|
|
.byte 0x8c,0xc8 # mov ax, cs
|
|
.byte 0x8e,0xd8 # mov ds, ax
|
|
.byte 0x8e,0xc0 # mov es, ax
|
|
.byte 0x8e,0xd0 # mov ss, ax
|
|
.byte 0x33,0xc0 # xor ax, ax
|
|
.byte 0x8e,0xe0 # mov fs, ax
|
|
.byte 0x8e,0xe8 # mov gs, ax
|
|
|
|
# Switch to flat mode.
|
|
|
|
.byte 0xBE
|
|
.word BufferStartLocation
|
|
.byte 0x66,0x8B,0x14 # mov edx,dword ptr [si] ; EDX is keeping the start address of wakeup buffer
|
|
|
|
.byte 0xBE
|
|
.word Cr3OffsetLocation
|
|
.byte 0x66,0x8B,0xC # mov ecx,dword ptr [si] ; ECX is keeping the value of CR3
|
|
|
|
.byte 0xBE
|
|
.word GdtrLocation
|
|
.byte 0x66 # db 66h
|
|
.byte 0x2E,0xF,0x1,0x14 # lgdt fword ptr cs:[si]
|
|
|
|
.byte 0xBE
|
|
.word IdtrLocation
|
|
.byte 0x66 # db 66h
|
|
.byte 0x2E,0xF,0x1,0x1C # lidt fword ptr cs:[si]
|
|
|
|
.byte 0x33,0xC0 # xor ax, ax
|
|
.byte 0x8E,0xD8 # mov ds, ax
|
|
|
|
.byte 0xF,0x20,0xC0 # mov eax, cr0 ; Get control register 0
|
|
.byte 0x66,0x83,0xC8,0x1 # or eax, 000000001h ; Set PE bit (bit #0)
|
|
.byte 0xF,0x22,0xC0 # mov cr0, eax
|
|
|
|
FLAT32_JUMP:
|
|
|
|
.byte 0x66,0x67,0xEA # far jump
|
|
.long 0x0 # 32-bit offset
|
|
.word 0x20 # 16-bit selector
|
|
|
|
ProtectedModeStart:
|
|
|
|
.byte 0x66,0xB8,0x18,0x0 # mov ax, 18h
|
|
.byte 0x66,0x8E,0xD8 # mov ds, ax
|
|
.byte 0x66,0x8E,0xC0 # mov es, ax
|
|
.byte 0x66,0x8E,0xE0 # mov fs, ax
|
|
.byte 0x66,0x8E,0xE8 # mov gs, ax
|
|
.byte 0x66,0x8E,0xD0 # mov ss, ax ; Flat mode setup.
|
|
|
|
.byte 0xF,0x20,0xE0 # mov eax, cr4
|
|
.byte 0xF,0xBA,0xE8,0x5 # bts eax, 5
|
|
.byte 0xF,0x22,0xE0 # mov cr4, eax
|
|
|
|
.byte 0xF,0x22,0xD9 # mov cr3, ecx
|
|
|
|
.byte 0x8B,0xF2 # mov esi, edx ; Save wakeup buffer address
|
|
|
|
.byte 0xB9
|
|
.long 0xC0000080 # mov ecx, 0c0000080h ; EFER MSR number.
|
|
.byte 0xF,0x32 # rdmsr ; Read EFER.
|
|
.byte 0xF,0xBA,0xE8,0x8 # bts eax, 8 ; Set LME=1.
|
|
.byte 0xF,0x30 # wrmsr ; Write EFER.
|
|
|
|
.byte 0xF,0x20,0xC0 # mov eax, cr0 ; Read CR0.
|
|
.byte 0xF,0xBA,0xE8,0x1F # bts eax, 31 ; Set PG=1.
|
|
.byte 0xF,0x22,0xC0 # mov cr0, eax ; Write CR0.
|
|
|
|
LONG_JUMP:
|
|
|
|
.byte 0x67,0xEA # far jump
|
|
.long 0x0 # 32-bit offset
|
|
.word 0x38 # 16-bit selector
|
|
|
|
LongModeStart:
|
|
|
|
movw $0x30,%ax
|
|
.byte 0x66
|
|
movw %ax,%ds
|
|
.byte 0x66
|
|
movw %ax,%es
|
|
.byte 0x66
|
|
movw %ax,%ss
|
|
|
|
#
|
|
# ProgramStack
|
|
#
|
|
movl $0x1b, %ecx
|
|
rdmsr
|
|
andl $0xfffff000, %eax
|
|
addl $0x20, %eax
|
|
movl (%eax), %ebx
|
|
shrl $24, %ebx
|
|
|
|
xorq %rcx, %rcx
|
|
movl %esi,%edi
|
|
addl $ProcessorNumberLocation, %edi
|
|
movl (%edi, %ebx, 4), %ecx
|
|
|
|
movl %esi,%edi
|
|
addl $StackSizeLocation, %edi
|
|
movq (%edi), %rax
|
|
incq %rcx
|
|
mulq %rcx
|
|
|
|
movl %esi,%edi
|
|
addl $StackStartAddressLocation, %edi
|
|
movq (%edi), %rbx
|
|
addq %rbx, %rax
|
|
|
|
movq %rax, %rsp
|
|
|
|
#
|
|
# Call C Function
|
|
#
|
|
movl %esi,%edi
|
|
addl $CProcedureLocation, %edi
|
|
movq (%edi), %rax
|
|
|
|
testq %rax, %rax
|
|
jz GoToSleep
|
|
|
|
subq $0x20, %rsp
|
|
call *%rax
|
|
addq $0x20, %rsp
|
|
|
|
GoToSleep:
|
|
|
|
cli
|
|
hlt
|
|
jmp .-2
|
|
|
|
RendezvousFunnelProcEnd:
|
|
|
|
|
|
#-------------------------------------------------------------------------------------
|
|
# AsmGetAddressMap (&AddressMap);
|
|
#-------------------------------------------------------------------------------------
|
|
# comments here for definition of address map
|
|
ASM_GLOBAL ASM_PFX(AsmGetAddressMap)
|
|
ASM_PFX(AsmGetAddressMap):
|
|
#ifdef __APPLE__
|
|
int $3
|
|
#else
|
|
movq $RendezvousFunnelProcStart, %rax
|
|
movq %rax, (%rcx)
|
|
movq $(ProtectedModeStart - RendezvousFunnelProcStart), 0x08(%rcx)
|
|
movq $(FLAT32_JUMP - RendezvousFunnelProcStart), 0x10(%rcx)
|
|
movq $(LongModeStart - RendezvousFunnelProcStart), 0x18(%rcx)
|
|
movq $(LONG_JUMP - RendezvousFunnelProcStart), 0x20(%rcx)
|
|
movq $(RendezvousFunnelProcEnd - RendezvousFunnelProcStart), 0x28(%rcx)
|
|
#endif
|
|
ret
|