+++ /dev/null
-#------------------------------------------------------------------------------\r
-#\r
-# Copyright (c) 2006 - 2015, Intel Corporation. All rights reserved.<BR>\r
-# This program and the accompanying materials\r
-# are licensed and made available under the terms and conditions of the BSD License\r
-# which accompanies this distribution. The full text of the license may be found at\r
-# http://opensource.org/licenses/bsd-license.php.\r
-#\r
-# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
-# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
-#\r
-# Module Name:\r
-#\r
-# MpFuncs.S\r
-#\r
-# Abstract:\r
-#\r
-# This is the assembly code for Multi-processor S3 support\r
-#\r
-#------------------------------------------------------------------------------\r
-\r
-.equ VacantFlag, 0x0\r
-.equ NotVacantFlag, 0xff\r
-\r
-.equ LockLocation, RendezvousFunnelProcEnd - RendezvousFunnelProcStart\r
-.equ StackStartAddressLocation, RendezvousFunnelProcEnd - RendezvousFunnelProcStart + 0x08\r
-.equ StackSizeLocation, RendezvousFunnelProcEnd - RendezvousFunnelProcStart + 0x10\r
-.equ CProcedureLocation, RendezvousFunnelProcEnd - RendezvousFunnelProcStart + 0x18\r
-.equ GdtrLocation, RendezvousFunnelProcEnd - RendezvousFunnelProcStart + 0x20\r
-.equ IdtrLocation, RendezvousFunnelProcEnd - RendezvousFunnelProcStart + 0x2A\r
-.equ BufferStartLocation, RendezvousFunnelProcEnd - RendezvousFunnelProcStart + 0x34\r
-.equ Cr3OffsetLocation, RendezvousFunnelProcEnd - RendezvousFunnelProcStart + 0x38\r
-\r
-#-------------------------------------------------------------------------------------\r
-#RendezvousFunnelProc procedure follows. All APs execute their procedure. This\r
-#procedure serializes all the AP processors through an Init sequence. It must be\r
-#noted that APs arrive here very raw...ie: real mode, no stack.\r
-#ALSO THIS PROCEDURE IS EXECUTED BY APs ONLY ON 16 BIT MODE. HENCE THIS PROC\r
-#IS IN MACHINE CODE.\r
-#-------------------------------------------------------------------------------------\r
-#RendezvousFunnelProc (&WakeUpBuffer,MemAddress);\r
-\r
-.code:\r
-\r
-ASM_GLOBAL ASM_PFX(RendezvousFunnelProc)\r
-ASM_PFX(RendezvousFunnelProc):\r
-RendezvousFunnelProcStart:\r
-\r
-# At this point CS = 0x(vv00) and ip= 0x0.\r
-\r
- .byte 0x8c,0xc8 # mov ax, cs\r
- .byte 0x8e,0xd8 # mov ds, ax\r
- .byte 0x8e,0xc0 # mov es, ax\r
- .byte 0x8e,0xd0 # mov ss, ax\r
- .byte 0x33,0xc0 # xor ax, ax\r
- .byte 0x8e,0xe0 # mov fs, ax\r
- .byte 0x8e,0xe8 # mov gs, ax\r
-\r
-flat32Start:\r
-\r
- .byte 0xBE\r
- .word BufferStartLocation\r
- .byte 0x66,0x8B,0x14 # mov edx,dword ptr [si] ; EDX is keeping the start address of wakeup buffer\r
-\r
- .byte 0xBE\r
- .word Cr3OffsetLocation\r
- .byte 0x66,0x8B,0xC # mov ecx,dword ptr [si] ; ECX is keeping the value of CR3\r
-\r
- .byte 0xBE\r
- .word GdtrLocation\r
- .byte 0x66 # db 66h\r
- .byte 0x2E,0xF,0x1,0x14 # lgdt fword ptr cs:[si]\r
-\r
- .byte 0xBE\r
- .word IdtrLocation\r
- .byte 0x66 # db 66h\r
- .byte 0x2E,0xF,0x1,0x1C # lidt fword ptr cs:[si]\r
-\r
- .byte 0x33,0xC0 # xor ax, ax\r
- .byte 0x8E,0xD8 # mov ds, ax\r
-\r
- .byte 0xF,0x20,0xC0 # mov eax, cr0 ; Get control register 0\r
- .byte 0x66,0x83,0xC8,0x1 # or eax, 000000001h ; Set PE bit (bit #0)\r
- .byte 0xF,0x22,0xC0 # mov cr0, eax\r
-\r
-FLAT32_JUMP:\r
-\r
- .byte 0x66,0x67,0xEA # far jump\r
- .long 0x0 # 32-bit offset\r
- .word 0x20 # 16-bit selector\r
-\r
-PMODE_ENTRY: # protected mode entry point\r
-\r
- .byte 0x66,0xB8,0x18,0x0 # mov ax, 18h\r
- .byte 0x66,0x8E,0xD8 # mov ds, ax\r
- .byte 0x66,0x8E,0xC0 # mov es, ax\r
- .byte 0x66,0x8E,0xE0 # mov fs, ax\r
- .byte 0x66,0x8E,0xE8 # mov gs, ax\r
- .byte 0x66,0x8E,0xD0 # mov ss, ax ; Flat mode setup.\r
-\r
- .byte 0xF,0x20,0xE0 # mov eax, cr4\r
- .byte 0xF,0xBA,0xE8,0x5 # bts eax, 5\r
- .byte 0xF,0x22,0xE0 # mov cr4, eax\r
-\r
- .byte 0xF,0x22,0xD9 # mov cr3, ecx\r
-\r
- .byte 0x8B,0xF2 # mov esi, edx ; Save wakeup buffer address\r
-\r
- .byte 0xB9\r
- .long 0xC0000080 # mov ecx, 0c0000080h ; EFER MSR number.\r
- .byte 0xF,0x32 # rdmsr ; Read EFER.\r
- .byte 0xF,0xBA,0xE8,0x8 # bts eax, 8 ; Set LME=1.\r
- .byte 0xF,0x30 # wrmsr ; Write EFER.\r
-\r
- .byte 0xF,0x20,0xC0 # mov eax, cr0 ; Read CR0.\r
- .byte 0xF,0xBA,0xE8,0x1F # bts eax, 31 ; Set PG=1.\r
- .byte 0xF,0x22,0xC0 # mov cr0, eax ; Write CR0.\r
-\r
-LONG_JUMP:\r
-\r
- .byte 0x67,0xEA # far jump\r
- .long 0x0 # 32-bit offset\r
- .word 0x38 # 16-bit selector\r
-\r
-LongModeStart:\r
-\r
- movw $0x30,%ax\r
- .byte 0x66\r
- movw %ax,%ds\r
- .byte 0x66\r
- movw %ax,%es\r
- .byte 0x66\r
- movw %ax,%ss\r
-\r
- movl %esi,%edi\r
- addl $LockLocation, %edi\r
- movb $NotVacantFlag, %al\r
-TestLock:\r
- xchgb (%edi), %al\r
- cmpb $NotVacantFlag, %al\r
- jz TestLock\r
-\r
-ProgramStack:\r
-\r
- movl %esi,%edi\r
- addl $StackSizeLocation, %edi\r
- movq (%edi), %rax\r
- movl %esi,%edi\r
- addl $StackStartAddressLocation, %edi\r
- addq (%edi), %rax\r
- movq %rax, %rsp\r
- movq %rax, (%edi)\r
-\r
-Releaselock:\r
-\r
- movb $VacantFlag, %al\r
- movl %esi,%edi\r
- addl $LockLocation, %edi\r
- xchgb (%edi), %al\r
-\r
- #\r
- # Call assembly function to initialize FPU.\r
- #\r
- movabsq $ASM_PFX(InitializeFloatingPointUnits), %rax\r
- subq $0x20, %rsp\r
- call *%rax\r
- addq $0x20, %rsp\r
- #\r
- # Call C Function\r
- #\r
- movl %esi,%edi\r
- addl $CProcedureLocation, %edi\r
- movq (%edi), %rax\r
-\r
- testq %rax, %rax\r
- jz GoToSleep\r
-\r
- subq $0x20, %rsp\r
- call *%rax\r
- addq $0x20, %rsp\r
-\r
-GoToSleep:\r
- cli\r
- hlt\r
- jmp .-2\r
-\r
-RendezvousFunnelProcEnd:\r
-\r
-\r
-#-------------------------------------------------------------------------------------\r
-# AsmGetAddressMap (&AddressMap);\r
-#-------------------------------------------------------------------------------------\r
-# comments here for definition of address map\r
-ASM_GLOBAL ASM_PFX(AsmGetAddressMap)\r
-ASM_PFX(AsmGetAddressMap):\r
- movabsq $RendezvousFunnelProcStart, %rax\r
- movq %rax, (%rcx)\r
- movq $(PMODE_ENTRY - RendezvousFunnelProcStart), 0x08(%rcx)\r
- movq $(FLAT32_JUMP - RendezvousFunnelProcStart), 0x10(%rcx)\r
- movq $(RendezvousFunnelProcEnd - RendezvousFunnelProcStart), 0x18(%rcx)\r
- movq $(LongModeStart - RendezvousFunnelProcStart), 0x20(%rcx)\r
- movq $(LONG_JUMP - RendezvousFunnelProcStart), 0x28(%rcx)\r
- ret\r
-\r
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