a33a2f6221
Contributed-under: TianoCore Contribution Agreement 1.0 Signed off by: Jiewen Yao <jiewen.yao@intel.com> Reviewed by: Ravi Rangarajan <ravi.p.rangarajan@intel.com> Reviewed by: Maurice Ma <maurice.ma@intel.com> Reviewed by: Giri Mudusuru <giri.p.mudusuru@intel.com> Reviewed by: Liming Gao <liming.gao@intel.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15676 6f19259b-4bc3-4df7-8a09-765794883524
141 lines
2.6 KiB
NASM
141 lines
2.6 KiB
NASM
;------------------------------------------------------------------------------
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;
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; Copyright (c) 2014, Intel Corporation. All rights reserved.<BR>
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; This program and the accompanying materials
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; are licensed and made available under the terms and conditions of the BSD License
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; which accompanies this distribution. The full text of the license may be found at
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; http://opensource.org/licenses/bsd-license.php.
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;
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; THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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; WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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;
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; Module Name:
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;
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; PeiCoreEntry.asm
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;
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; Abstract:
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;
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; Find and call SecStartup
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;
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;------------------------------------------------------------------------------
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.686p
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.xmm
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.model flat, c
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.code
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EXTRN SecStartup:NEAR
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EXTRN PlatformInit:NEAR
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CallPeiCoreEntryPoint PROC PUBLIC
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;
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; Obtain the hob list pointer
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;
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mov eax, [esp+4]
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;
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; Obtain the stack information
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; ECX: start of range
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; EDX: end of range
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;
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mov ecx, [esp+8]
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mov edx, [esp+0Ch]
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;
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; Platform init
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;
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pushad
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push edx
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push ecx
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push eax
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call PlatformInit
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pop eax
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pop eax
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pop eax
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popad
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;
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; Set stack top pointer
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;
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mov esp, edx
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;
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; Push the hob list pointer
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;
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push eax
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;
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; Save the value
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; ECX: start of range
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; EDX: end of range
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;
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mov ebp, esp
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push ecx
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push edx
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;
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; Push processor count to stack first, then BIST status (AP then BSP)
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;
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mov eax, 1
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cpuid
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shr ebx, 16
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and ebx, 0000000FFh
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cmp bl, 1
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jae PushProcessorCount
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;
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; Some processors report 0 logical processors. Effectively 0 = 1.
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; So we fix up the processor count
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;
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inc ebx
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PushProcessorCount:
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push ebx
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;
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; We need to implement a long-term solution for BIST capture. For now, we just copy BSP BIST
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; for all processor threads
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;
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xor ecx, ecx
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mov cl, bl
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PushBist:
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movd eax, mm0
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push eax
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loop PushBist
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; Save Time-Stamp Counter
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movd eax, mm5
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push eax
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movd eax, mm6
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push eax
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;
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; Pass entry point of the PEI core
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;
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mov edi, 0FFFFFFE0h
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push DWORD PTR ds:[edi]
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;
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; Pass BFV into the PEI Core
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;
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mov edi, 0FFFFFFFCh
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push DWORD PTR ds:[edi]
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;
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; Pass stack size into the PEI Core
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;
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mov ecx, [ebp - 4]
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mov edx, [ebp - 8]
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push ecx ; RamBase
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sub edx, ecx
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push edx ; RamSize
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;
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; Pass Control into the PEI Core
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;
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call SecStartup
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CallPeiCoreEntryPoint ENDP
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END
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