1 ;------------------------------------------------------------------------------ 2 ; 3 ; Copyright (c) 2014, Intel Corporation. All rights reserved.<BR> 4 ; This program and the accompanying materials 5 ; are licensed and made available under the terms and conditions of the BSD License 6 ; which accompanies this distribution. The full text of the license may be found at 7 ; http://opensource.org/licenses/bsd-license.php. 8 ; 9 ; THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, 10 ; WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. 11 ; 12 ; Module Name: 13 ; 14 ; PeiCoreEntry.asm 15 ; 16 ; Abstract: 17 ; 18 ; Find and call SecStartup 19 ; 20 ;------------------------------------------------------------------------------ 21 22 .686p 23 .xmm 24 .model flat, c 25 .code 26 27 EXTRN SecStartup:NEAR 28 EXTRN PlatformInit:NEAR 29 30 CallPeiCoreEntryPoint PROC PUBLIC 31 ; 32 ; Obtain the hob list pointer 33 ; 34 mov eax, [esp+4] 35 ; 36 ; Obtain the stack information 37 ; ECX: start of range 38 ; EDX: end of range 39 ; 40 mov ecx, [esp+8] 41 mov edx, [esp+0Ch] 42 43 ; 44 ; Platform init 45 ; 46 pushad 47 push edx 48 push ecx 49 push eax 50 call PlatformInit 51 pop eax 52 pop eax 53 pop eax 54 popad 55 56 ; 57 ; Set stack top pointer 58 ; 59 mov esp, edx 60 61 ; 62 ; Push the hob list pointer 63 ; 64 push eax 65 66 ; 67 ; Save the value 68 ; ECX: start of range 69 ; EDX: end of range 70 ; 71 mov ebp, esp 72 push ecx 73 push edx 74 75 ; 76 ; Push processor count to stack first, then BIST status (AP then BSP) 77 ; 78 mov eax, 1 79 cpuid 80 shr ebx, 16 81 and ebx, 0000000FFh 82 cmp bl, 1 83 jae PushProcessorCount 84 85 ; 86 ; Some processors report 0 logical processors. Effectively 0 = 1. 87 ; So we fix up the processor count 88 ; 89 inc ebx 90 91 PushProcessorCount: 92 push ebx 93 94 ; 95 ; We need to implement a long-term solution for BIST capture. For now, we just copy BSP BIST 96 ; for all processor threads 97 ; 98 xor ecx, ecx 99 mov cl, bl 100 PushBist: 101 movd eax, mm0 102 push eax 103 loop PushBist 104 105 ; Save Time-Stamp Counter 106 movd eax, mm5 107 push eax 108 109 movd eax, mm6 110 push eax 111 112 ; 113 ; Pass entry point of the PEI core 114 ; 115 mov edi, 0FFFFFFE0h 116 push DWORD PTR ds:[edi] 117 118 ; 119 ; Pass BFV into the PEI Core 120 ; 121 mov edi, 0FFFFFFFCh 122 push DWORD PTR ds:[edi] 123 124 ; 125 ; Pass stack size into the PEI Core 126 ; 127 mov ecx, [ebp - 4] 128 mov edx, [ebp - 8] 129 push ecx ; RamBase 130 131 sub edx, ecx 132 push edx ; RamSize 133 134 ; 135 ; Pass Control into the PEI Core 136 ; 137 call SecStartup 138 CallPeiCoreEntryPoint ENDP 139 140 END 141
