1*fdd8201dSApple OSS Distributions/* 2*fdd8201dSApple OSS Distributions * Copyright (c) 2007-2009 Apple Inc. All rights reserved. 3*fdd8201dSApple OSS Distributions * 4*fdd8201dSApple OSS Distributions * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ 5*fdd8201dSApple OSS Distributions * 6*fdd8201dSApple OSS Distributions * This file contains Original Code and/or Modifications of Original Code 7*fdd8201dSApple OSS Distributions * as defined in and that are subject to the Apple Public Source License 8*fdd8201dSApple OSS Distributions * Version 2.0 (the 'License'). You may not use this file except in 9*fdd8201dSApple OSS Distributions * compliance with the License. The rights granted to you under the License 10*fdd8201dSApple OSS Distributions * may not be used to create, or enable the creation or redistribution of, 11*fdd8201dSApple OSS Distributions * unlawful or unlicensed copies of an Apple operating system, or to 12*fdd8201dSApple OSS Distributions * circumvent, violate, or enable the circumvention or violation of, any 13*fdd8201dSApple OSS Distributions * terms of an Apple operating system software license agreement. 14*fdd8201dSApple OSS Distributions * 15*fdd8201dSApple OSS Distributions * Please obtain a copy of the License at 16*fdd8201dSApple OSS Distributions * http://www.opensource.apple.com/apsl/ and read it before using this file. 17*fdd8201dSApple OSS Distributions * 18*fdd8201dSApple OSS Distributions * The Original Code and all software distributed under the License are 19*fdd8201dSApple OSS Distributions * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 20*fdd8201dSApple OSS Distributions * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 21*fdd8201dSApple OSS Distributions * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 22*fdd8201dSApple OSS Distributions * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 23*fdd8201dSApple OSS Distributions * Please see the License for the specific language governing rights and 24*fdd8201dSApple OSS Distributions * limitations under the License. 25*fdd8201dSApple OSS Distributions * 26*fdd8201dSApple OSS Distributions * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ 27*fdd8201dSApple OSS Distributions */ 28*fdd8201dSApple OSS Distributions#include <arm/asm.h> 29*fdd8201dSApple OSS Distributions#include <arm/proc_reg.h> 30*fdd8201dSApple OSS Distributions#include "assym.s" 31*fdd8201dSApple OSS Distributions 32*fdd8201dSApple OSS Distributions#if defined(__arm__) 33*fdd8201dSApple OSS Distributions#include "globals_asm.h" 34*fdd8201dSApple OSS Distributions#elif defined(__arm64__) 35*fdd8201dSApple OSS Distributions/* We're fine, use adrp, add */ 36*fdd8201dSApple OSS Distributions#else 37*fdd8201dSApple OSS Distributions#error Unknown architecture. 38*fdd8201dSApple OSS Distributions#endif 39*fdd8201dSApple OSS Distributions 40*fdd8201dSApple OSS Distributions .section __BOOTDATA, __data // Aligned data 41*fdd8201dSApple OSS Distributions 42*fdd8201dSApple OSS Distributions .align 14 43*fdd8201dSApple OSS Distributions 44*fdd8201dSApple OSS Distributions .globl EXT(intstack_low_guard) 45*fdd8201dSApple OSS DistributionsLEXT(intstack_low_guard) 46*fdd8201dSApple OSS Distributions .space (PAGE_MAX_SIZE_NUM) 47*fdd8201dSApple OSS Distributions 48*fdd8201dSApple OSS Distributions /* IRQ stack */ 49*fdd8201dSApple OSS Distributions .globl EXT(intstack) // Boot processor IRQ stack 50*fdd8201dSApple OSS DistributionsLEXT(intstack) 51*fdd8201dSApple OSS Distributions .space (INTSTACK_SIZE_NUM) 52*fdd8201dSApple OSS Distributions .globl EXT(intstack_top) 53*fdd8201dSApple OSS DistributionsLEXT(intstack_top) 54*fdd8201dSApple OSS Distributions 55*fdd8201dSApple OSS Distributions .globl EXT(intstack_high_guard) 56*fdd8201dSApple OSS DistributionsLEXT(intstack_high_guard) 57*fdd8201dSApple OSS Distributions .space (PAGE_MAX_SIZE_NUM) 58*fdd8201dSApple OSS Distributions 59*fdd8201dSApple OSS Distributions/* Low guard for fiq/exception stack is shared w/ interrupt stack high guard */ 60*fdd8201dSApple OSS Distributions 61*fdd8201dSApple OSS Distributions#ifndef __arm64__ 62*fdd8201dSApple OSS Distributions 63*fdd8201dSApple OSS Distributions .globl EXT(fiqstack) // Boot processor FIQ stack 64*fdd8201dSApple OSS DistributionsLEXT(fiqstack) 65*fdd8201dSApple OSS Distributions .space (FIQSTACK_SIZE_NUM) 66*fdd8201dSApple OSS Distributions .globl EXT(fiqstack_top) // Boot processor FIQ stack top 67*fdd8201dSApple OSS DistributionsLEXT(fiqstack_top) 68*fdd8201dSApple OSS Distributions 69*fdd8201dSApple OSS Distributions .globl EXT(fiqstack_high_guard) 70*fdd8201dSApple OSS DistributionsLEXT(fiqstack_high_guard) 71*fdd8201dSApple OSS Distributions .space (PAGE_MAX_SIZE_NUM) 72*fdd8201dSApple OSS Distributions 73*fdd8201dSApple OSS Distributions#else 74*fdd8201dSApple OSS Distributions 75*fdd8201dSApple OSS Distributions .global EXT(excepstack) 76*fdd8201dSApple OSS DistributionsLEXT(excepstack) 77*fdd8201dSApple OSS Distributions .space (EXCEPSTACK_SIZE_NUM) 78*fdd8201dSApple OSS Distributions .globl EXT(excepstack_top) 79*fdd8201dSApple OSS DistributionsLEXT(excepstack_top) 80*fdd8201dSApple OSS Distributions 81*fdd8201dSApple OSS Distributions .globl EXT(excepstack_high_guard) 82*fdd8201dSApple OSS DistributionsLEXT(excepstack_high_guard) 83*fdd8201dSApple OSS Distributions .space (PAGE_MAX_SIZE_NUM) 84*fdd8201dSApple OSS Distributions 85*fdd8201dSApple OSS Distributions#endif 86*fdd8201dSApple OSS Distributions 87*fdd8201dSApple OSS Distributions// Must align to 16K here, due to <rdar://problem/33268668> 88*fdd8201dSApple OSS Distributions .global EXT(kd_early_buffer) 89*fdd8201dSApple OSS Distributions .align 14 90*fdd8201dSApple OSS DistributionsLEXT(kd_early_buffer) // space for kdebug's early event buffer 91*fdd8201dSApple OSS Distributions .space 16*1024,0 92*fdd8201dSApple OSS Distributions 93*fdd8201dSApple OSS Distributions .section __DATA, __data // Aligned data 94*fdd8201dSApple OSS Distributions .align 3 // unsigned long long aligned Section 95*fdd8201dSApple OSS Distributions .globl EXT(RTClockData) 96*fdd8201dSApple OSS DistributionsLEXT(RTClockData) // Real Time clock area 97*fdd8201dSApple OSS Distributions .space RTCLOCKDataSize_NUM,0 // (filled with 0s) 98*fdd8201dSApple OSS Distributions 99*fdd8201dSApple OSS Distributions#if TRASH_VFP_ON_SAVE 100*fdd8201dSApple OSS Distributions .align 4 101*fdd8201dSApple OSS Distributions .globl EXT(vfptrash_data) 102*fdd8201dSApple OSS DistributionsLEXT(vfptrash_data) 103*fdd8201dSApple OSS Distributions .fill 64, 4, 0xca55e77e 104*fdd8201dSApple OSS Distributions#endif 105*fdd8201dSApple OSS Distributions 106*fdd8201dSApple OSS Distributions#if __arm64__ 107*fdd8201dSApple OSS Distributions .section __DATA, __const 108*fdd8201dSApple OSS Distributions 109*fdd8201dSApple OSS Distributions#if defined(KERNEL_INTEGRITY_KTRR) || defined(KERNEL_INTEGRITY_CTRR) 110*fdd8201dSApple OSS Distributions/* reserve space for read only page tables */ 111*fdd8201dSApple OSS Distributions .align 14 112*fdd8201dSApple OSS DistributionsLEXT(ropagetable_begin) 113*fdd8201dSApple OSS Distributions#if XNU_TARGET_OS_OSX 114*fdd8201dSApple OSS Distributions // A big auxKC might need more page tables, especially because 115*fdd8201dSApple OSS Distributions // it's not block mapped. 116*fdd8201dSApple OSS Distributions // Note that we don't distuinguish between KASAN or not: With 117*fdd8201dSApple OSS Distributions // a KASAN kernel, the effective auxKC limit is smaller. 118*fdd8201dSApple OSS Distributions .space 18*16*1024,0 119*fdd8201dSApple OSS Distributions#elif KASAN 120*fdd8201dSApple OSS Distributions .space 16*16*1024,0 121*fdd8201dSApple OSS Distributions#else 122*fdd8201dSApple OSS Distributions .space 14*16*1024,0 123*fdd8201dSApple OSS Distributions#endif 124*fdd8201dSApple OSS Distributions#else 125*fdd8201dSApple OSS DistributionsLEXT(ropagetable_begin) 126*fdd8201dSApple OSS Distributions#endif /* defined(KERNEL_INTEGRITY_KTRR) || defined(KERNEL_INTEGRITY_CTRR) */ 127*fdd8201dSApple OSS Distributions 128*fdd8201dSApple OSS DistributionsLEXT(ropagetable_end) 129*fdd8201dSApple OSS Distributions 130*fdd8201dSApple OSS Distributions .globl EXT(ropagetable_begin) 131*fdd8201dSApple OSS Distributions .globl EXT(ropagetable_end) 132*fdd8201dSApple OSS Distributions#endif /* __arm64__ */ 133*fdd8201dSApple OSS Distributions 134*fdd8201dSApple OSS Distributions/* vim: set ts=4: */ 135