+++ /dev/null
-;------------------------------------------------------------------------------\r
-; IA32 assembly file for AP startup vector.\r
-;\r
-; Copyright (c) 2009 - 2010, 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
-;------------------------------------------------------------------------------\r
-\r
-.686p\r
-.model flat \r
-.code \r
-\r
-include AsmInclude.inc\r
-;-------------------------------------------------------------------------------------\r
-FJMP32 MACRO Selector, Offset\r
- DB 066h\r
- DB 067h\r
- DB 0EAh ; far jump\r
- DD Offset ; 32-bit offset\r
- DW Selector ; 16-bit selector\r
- ENDM\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
-RendezvousFunnelProc PROC near C PUBLIC\r
-RendezvousFunnelProcStart::\r
-\r
-\r
-; At this point CS = 0x(vv00) and ip= 0x0.\r
-\r
- db 8ch, 0c8h ; mov ax, cs\r
- db 8eh, 0d8h ; mov ds, ax\r
- db 8eh, 0c0h ; mov es, ax\r
- db 8eh, 0d0h ; mov ss, ax \r
- db 33h, 0c0h ; xor ax, ax\r
- db 8eh, 0e0h ; mov fs, ax\r
- db 8eh, 0e8h ; mov gs, ax\r
-\r
-; Switch to flat mode.\r
-\r
- db 0BEh\r
- dw BufferStart ; mov si, BufferStart\r
- db 66h, 8Bh, 0Ch ; mov ecx,dword ptr [si] ; ECX is keeping the start address of wakeup buffer\r
-\r
- db 0FAh ; cli\r
- db 0BEh\r
- dw GdtrProfile ; mov si, GdtrProfile\r
- db 66h ; db 66h\r
- db 2Eh,0Fh, 01h, 14h ; lgdt fword ptr cs:[si]\r
-\r
- db 0BEh\r
- dw IdtrProfile ; mov si, IdtrProfile\r
- db 66h ; db 66h\r
- db 2Eh,0Fh, 01h, 1Ch ; lidt fword ptr cs:[si]\r
- \r
- db 33h, 0C0h ; xor ax, ax\r
- db 8Eh, 0D8h ; mov ds, ax\r
- db 0Fh, 20h, 0C0h ; mov eax, cr0 ; Get control register 0\r
- db 66h, 83h, 0C8h, 01h ; or eax, 000000001h ; Set PE bit (bit #0)\r
- db 0Fh, 22h, 0C0h ; mov cr0, eax\r
-\r
-\r
-FLAT32_JUMP::\r
- FJMP32 010h,0h ; Far jmp using code segment descriptor\r
-\r
-ProtectedModeStart:: ; protected mode entry point\r
-\r
- mov ax, 8h\r
- mov ds, ax\r
- mov es, ax\r
- mov fs, ax\r
- mov gs, ax\r
- mov ss, ax ; Flat mode setup.\r
-\r
- ;\r
- ; ProgramStack\r
- ;\r
- mov ecx, 1bh ; Read IA32_APIC_BASE MSR\r
- rdmsr\r
-\r
- bt eax, 10 ; Check for x2apic mode\r
- jnc LegacyApicMode\r
- mov ecx, 802h ; Read APIC_ID\r
- rdmsr\r
- mov ebx, eax ; ebx == apicid\r
- jmp GetCpuNumber\r
-\r
-LegacyApicMode::\r
-\r
- and eax, 0fffff000h\r
- add eax, 20h\r
- mov ebx, dword ptr [eax]\r
- shr ebx, 24 ; ebx == apicid\r
-\r
-GetCpuNumber::\r
- \r
- xor ecx, ecx\r
- mov edi, esi\r
- add edi, ProcessorNumber\r
- mov ecx, dword ptr [edi + 4 * ebx] ; ECX = CpuNumber\r
-\r
- mov edi, esi\r
- add edi, StackSize\r
- mov eax, dword ptr [edi]\r
- inc ecx\r
- mul ecx ; EAX = StackSize * (CpuNumber + 1)\r
-\r
- mov edi, esi\r
- add edi, StackStart\r
- mov ebx, dword ptr [edi]\r
- add eax, ebx ; EAX = StackStart + StackSize * (CpuNumber + 1)\r
-\r
- mov esp, eax\r
-\r
- ;\r
- ; Call C Function\r
- ;\r
- mov edi, esi\r
- add edi, RendezvousProc\r
- mov ebx, dword ptr [edi]\r
-\r
- test ebx, ebx\r
- jz GoToSleep\r
- call ebx ; Call C function\r
-\r
-GoToSleep::\r
-\r
- cli\r
- hlt\r
- jmp $-2\r
- \r
-RendezvousFunnelProc ENDP\r
-RendezvousFunnelProcEnd::\r
-;-------------------------------------------------------------------------------------\r
-; AsmGetAddressMap (&AddressMap);\r
-;-------------------------------------------------------------------------------------\r
-AsmGetAddressMap PROC near C PUBLIC\r
-\r
- pushad\r
- mov ebp,esp\r
- \r
- mov ebx, dword ptr [ebp+24h]\r
- mov dword ptr [ebx], RendezvousFunnelProcStart\r
- mov dword ptr [ebx+4h], ProtectedModeStart - RendezvousFunnelProcStart\r
- mov dword ptr [ebx+8h], FLAT32_JUMP - RendezvousFunnelProcStart\r
- mov dword ptr [ebx+0ch], 0\r
- mov dword ptr [ebx+10h], 0\r
- mov dword ptr [ebx+14h], RendezvousFunnelProcEnd - RendezvousFunnelProcStart\r
- \r
- popad\r
- ret\r
-AsmGetAddressMap ENDP\r
-\r
-END\r
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