| | 1 | #------------------------------------------------------------------------------\r |
| | 2 | #\r |
| | 3 | # Copyright (c) 2009 - 2015, Intel Corporation. All rights reserved.<BR>\r |
| | 4 | # This program and the accompanying materials\r |
| | 5 | # are licensed and made available under the terms and conditions of the BSD License\r |
| | 6 | # which accompanies this distribution. The full text of the license may be found at\r |
| | 7 | # http://opensource.org/licenses/bsd-license.php.\r |
| | 8 | #\r |
| | 9 | # THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r |
| | 10 | # WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r |
| | 11 | #\r |
| | 12 | # Module Name:\r |
| | 13 | #\r |
| | 14 | # SmmInit.S\r |
| | 15 | #\r |
| | 16 | # Abstract:\r |
| | 17 | #\r |
| | 18 | # Functions for relocating SMBASE's for all processors\r |
| | 19 | #\r |
| | 20 | #------------------------------------------------------------------------------\r |
| | 21 | \r |
| | 22 | ASM_GLOBAL ASM_PFX(gSmmCr0)\r |
| | 23 | ASM_GLOBAL ASM_PFX(gSmmCr3)\r |
| | 24 | ASM_GLOBAL ASM_PFX(gSmmCr4)\r |
| | 25 | ASM_GLOBAL ASM_PFX(gcSmmInitTemplate)\r |
| | 26 | ASM_GLOBAL ASM_PFX(gcSmmInitSize)\r |
| | 27 | ASM_GLOBAL ASM_PFX(gSmmJmpAddr)\r |
| | 28 | ASM_GLOBAL ASM_PFX(SmmRelocationSemaphoreComplete)\r |
| | 29 | ASM_GLOBAL ASM_PFX(gSmmInitStack)\r |
| | 30 | ASM_GLOBAL ASM_PFX(gcSmiInitGdtr)\r |
| | 31 | \r |
| | 32 | .equ PROTECT_MODE_CS, 0x08\r |
| | 33 | .equ PROTECT_MODE_DS, 0x20\r |
| | 34 | \r |
| | 35 | .text\r |
| | 36 | \r |
| | 37 | ASM_PFX(gcSmiInitGdtr):\r |
| | 38 | .word 0\r |
| | 39 | .quad 0\r |
| | 40 | \r |
| | 41 | SmmStartup:\r |
| | 42 | .byte 0x66,0xb8\r |
| | 43 | ASM_PFX(gSmmCr3): .space 4\r |
| | 44 | movl %eax, %cr3\r |
| | 45 | .byte 0x67,0x66\r |
| | 46 | lgdt %cs:(ASM_PFX(gcSmiInitGdtr) - SmmStartup)(%ebp)\r |
| | 47 | .byte 0x66,0xb8\r |
| | 48 | ASM_PFX(gSmmCr4): .space 4\r |
| | 49 | movl %eax, %cr4\r |
| | 50 | .byte 0x66,0xb8\r |
| | 51 | ASM_PFX(gSmmCr0): .space 4\r |
| | 52 | .byte 0xbf, PROTECT_MODE_DS, 0 # mov di, PROTECT_MODE_DS\r |
| | 53 | movl %eax, %cr0\r |
| | 54 | .byte 0x66,0xea # jmp far [ptr48]\r |
| | 55 | ASM_PFX(gSmmJmpAddr): .long Start32bit\r |
| | 56 | .word PROTECT_MODE_CS\r |
| | 57 | Start32bit:\r |
| | 58 | movl %edi,%ds\r |
| | 59 | movl %edi,%es\r |
| | 60 | movl %edi,%fs\r |
| | 61 | movl %edi,%gs\r |
| | 62 | movl %edi,%ss\r |
| | 63 | .byte 0xbc # mov esp, imm32\r |
| | 64 | ASM_PFX(gSmmInitStack): .space 4\r |
| | 65 | call ASM_PFX(SmmInitHandler)\r |
| | 66 | rsm\r |
| | 67 | \r |
| | 68 | ASM_PFX(gcSmmInitTemplate):\r |
| | 69 | \r |
| | 70 | _SmmInitTemplate:\r |
| | 71 | .byte 0x66\r |
| | 72 | movl $SmmStartup, %ebp\r |
| | 73 | .byte 0x66, 0x81, 0xed, 0, 0, 3, 0 # sub ebp, 0x30000\r |
| | 74 | jmp *%bp # jmp ebp actually\r |
| | 75 | \r |
| | 76 | ASM_PFX(gcSmmInitSize): .word . - ASM_PFX(gcSmmInitTemplate)\r |
| | 77 | \r |
| | 78 | \r |
| | 79 | ASM_PFX(SmmRelocationSemaphoreComplete):\r |
| | 80 | pushl %eax\r |
| | 81 | movl ASM_PFX(mRebasedFlag), %eax\r |
| | 82 | movb $1, (%eax)\r |
| | 83 | popl %eax\r |
| | 84 | jmp *ASM_PFX(mSmmRelocationOriginalAddress)\r |
projects / mirror_edk2.git / blame_incremental