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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 | /* * Copyright (c) 2007-2021 Apple Inc. All rights reserved. * * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ * * This file contains Original Code and/or Modifications of Original Code * as defined in and that are subject to the Apple Public Source License * Version 2.0 (the 'License'). You may not use this file except in * compliance with the License. The rights granted to you under the License * may not be used to create, or enable the creation or redistribution of, * unlawful or unlicensed copies of an Apple operating system, or to * circumvent, violate, or enable the circumvention or violation of, any * terms of an Apple operating system software license agreement. * * Please obtain a copy of the License at * http://www.opensource.apple.com/apsl/ and read it before using this file. * * The Original Code and all software distributed under the License are * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. * Please see the License for the specific language governing rights and * limitations under the License. * * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ */ #include <arm64/asm.h> #include <arm64/proc_reg.h> #include "assym.s" #if defined(__arm64__) /* We're fine, use adrp, add */ #else #error Unknown architecture. #endif .section __BOOTDATA, __data // Aligned data .align 14 .globl EXT(intstack_low_guard) LEXT(intstack_low_guard) .space (PAGE_MAX_SIZE_NUM) /* IRQ stack */ .globl EXT(intstack) // Boot processor IRQ stack LEXT(intstack) .space (INTSTACK_SIZE_NUM) .globl EXT(intstack_top) LEXT(intstack_top) .globl EXT(intstack_high_guard) LEXT(intstack_high_guard) .space (PAGE_MAX_SIZE_NUM) /* Low guard for fiq/exception stack is shared w/ interrupt stack high guard */ #ifdef __arm64__ .global EXT(excepstack) LEXT(excepstack) .space (EXCEPSTACK_SIZE_NUM) .globl EXT(excepstack_top) LEXT(excepstack_top) .globl EXT(excepstack_high_guard) LEXT(excepstack_high_guard) .space (PAGE_MAX_SIZE_NUM) #endif // Must align to 16K here, due to <rdar://problem/33268668> .global EXT(kd_early_buffer) .align 14 LEXT(kd_early_buffer) // space for kdebug's early event buffer .space 16*1024,0 .section __DATA, __data // Aligned data .align 3 // unsigned long long aligned Section .globl EXT(RTClockData) LEXT(RTClockData) // Real Time clock area .space RTCLOCKDataSize_NUM,0 // (filled with 0s) #if TRASH_VFP_ON_SAVE .align 4 .globl EXT(vfptrash_data) LEXT(vfptrash_data) .fill 64, 4, 0xca55e77e #endif #if __arm64__ #if defined(KERNEL_INTEGRITY_KTRR) || defined(KERNEL_INTEGRITY_CTRR) .section __DATA, __const .align 14 /* reserve space for read only page tables */ LEXT(ropagetable_begin) #if XNU_TARGET_OS_OSX // A big auxKC might need more page tables, especially because // it's not block mapped. // Note that we don't distuinguish between KASAN or not: With // a KASAN kernel, the effective auxKC limit is smaller. .space 18*16*1024,0 #elif KASAN .space 16*16*1024,0 #else .space 14*16*1024,0 #endif #else LEXT(ropagetable_begin) #endif /* defined(KERNEL_INTEGRITY_KTRR) || defined(KERNEL_INTEGRITY_CTRR) */ LEXT(ropagetable_end) .globl EXT(ropagetable_begin) .globl EXT(ropagetable_end) #endif /* __arm64__ */ /* vim: set ts=4: */ |