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.S 15 # 16 # Abstract: 17 # 18 # Find and call SecStartup 19 # 20 #------------------------------------------------------------------------------ 21 22 ASM_GLOBAL ASM_PFX(CallPeiCoreEntryPoint) 23 ASM_PFX(CallPeiCoreEntryPoint): 24 # 25 # Obtain the hob list pointer 26 # 27 movl 0x4(%esp), %eax 28 # 29 # Obtain the stack information 30 # ECX: start of range 31 # EDX: end of range 32 # 33 movl 0x8(%esp), %ecx 34 movl 0xC(%esp), %edx 35 36 # 37 # Platform init 38 # 39 pushal 40 pushl %edx 41 pushl %ecx 42 pushl %eax 43 call ASM_PFX(PlatformInit) 44 popl %eax 45 popl %eax 46 popl %eax 47 popal 48 49 # 50 # Set stack top pointer 51 # 52 movl %edx, %esp 53 54 # 55 # Push the hob list pointer 56 # 57 pushl %eax 58 59 # 60 # Save the value 61 # ECX: start of range 62 # EDX: end of range 63 # 64 movl %esp, %ebp 65 pushl %ecx 66 pushl %edx 67 68 # 69 # Push processor count to stack first, then BIST status (AP then BSP) 70 # 71 movl $1, %eax 72 cpuid 73 shr $16, %ebx 74 andl $0x000000FF, %ebx 75 cmp $1, %bl 76 jae PushProcessorCount 77 78 # 79 # Some processors report 0 logical processors. Effectively 0 = 1. 80 # So we fix up the processor count 81 # 82 inc %ebx 83 84 PushProcessorCount: 85 pushl %ebx 86 87 # 88 # We need to implement a long-term solution for BIST capture. For now, we just copy BSP BIST 89 # for all processor threads 90 # 91 xorl %ecx, %ecx 92 movb %bl, %cl 93 PushBist: 94 movd %mm0, %eax 95 pushl %eax 96 loop PushBist 97 98 # Save Time-Stamp Counter 99 movd %mm5, %eax 100 pushl %eax 101 102 movd %mm6, %eax 103 pushl %eax 104 105 # 106 # Pass entry point of the PEI core 107 # 108 movl $0xFFFFFFE0, %edi 109 pushl %ds:(%edi) 110 111 # 112 # Pass BFV into the PEI Core 113 # 114 movl $0xFFFFFFFC, %edi 115 pushl %ds:(%edi) 116 117 # 118 # Pass stack size into the PEI Core 119 # 120 movl -4(%ebp), %ecx 121 movl -8(%ebp), %edx 122 pushl %ecx # RamBase 123 124 subl %ecx, %edx 125 pushl %edx # RamSize 126 127 # 128 # Pass Control into the PEI Core 129 # 130 call ASM_PFX(SecStartup) 131
