1*e7776783SApple OSS Distributions/* 2*e7776783SApple OSS Distributions * Copyright (c) 2007-2009 Apple Inc. All rights reserved. 3*e7776783SApple OSS Distributions * 4*e7776783SApple OSS Distributions * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ 5*e7776783SApple OSS Distributions * 6*e7776783SApple OSS Distributions * This file contains Original Code and/or Modifications of Original Code 7*e7776783SApple OSS Distributions * as defined in and that are subject to the Apple Public Source License 8*e7776783SApple OSS Distributions * Version 2.0 (the 'License'). You may not use this file except in 9*e7776783SApple OSS Distributions * compliance with the License. The rights granted to you under the License 10*e7776783SApple OSS Distributions * may not be used to create, or enable the creation or redistribution of, 11*e7776783SApple OSS Distributions * unlawful or unlicensed copies of an Apple operating system, or to 12*e7776783SApple OSS Distributions * circumvent, violate, or enable the circumvention or violation of, any 13*e7776783SApple OSS Distributions * terms of an Apple operating system software license agreement. 14*e7776783SApple OSS Distributions * 15*e7776783SApple OSS Distributions * Please obtain a copy of the License at 16*e7776783SApple OSS Distributions * http://www.opensource.apple.com/apsl/ and read it before using this file. 17*e7776783SApple OSS Distributions * 18*e7776783SApple OSS Distributions * The Original Code and all software distributed under the License are 19*e7776783SApple OSS Distributions * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 20*e7776783SApple OSS Distributions * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 21*e7776783SApple OSS Distributions * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 22*e7776783SApple OSS Distributions * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 23*e7776783SApple OSS Distributions * Please see the License for the specific language governing rights and 24*e7776783SApple OSS Distributions * limitations under the License. 25*e7776783SApple OSS Distributions * 26*e7776783SApple OSS Distributions * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ 27*e7776783SApple OSS Distributions */ 28*e7776783SApple OSS Distributions#include <arm/asm.h> 29*e7776783SApple OSS Distributions#include <arm/proc_reg.h> 30*e7776783SApple OSS Distributions#include "assym.s" 31*e7776783SApple OSS Distributions 32*e7776783SApple OSS Distributions#if defined(__arm__) 33*e7776783SApple OSS Distributions#include "globals_asm.h" 34*e7776783SApple OSS Distributions#elif defined(__arm64__) 35*e7776783SApple OSS Distributions/* We're fine, use adrp, add */ 36*e7776783SApple OSS Distributions#else 37*e7776783SApple OSS Distributions#error Unknown architecture. 38*e7776783SApple OSS Distributions#endif 39*e7776783SApple OSS Distributions 40*e7776783SApple OSS Distributions .section __BOOTDATA, __data // Aligned data 41*e7776783SApple OSS Distributions 42*e7776783SApple OSS Distributions .align 14 43*e7776783SApple OSS Distributions 44*e7776783SApple OSS Distributions .globl EXT(intstack_low_guard) 45*e7776783SApple OSS DistributionsLEXT(intstack_low_guard) 46*e7776783SApple OSS Distributions .space (PAGE_MAX_SIZE_NUM) 47*e7776783SApple OSS Distributions 48*e7776783SApple OSS Distributions /* IRQ stack */ 49*e7776783SApple OSS Distributions .globl EXT(intstack) // Boot processor IRQ stack 50*e7776783SApple OSS DistributionsLEXT(intstack) 51*e7776783SApple OSS Distributions .space (INTSTACK_SIZE_NUM) 52*e7776783SApple OSS Distributions .globl EXT(intstack_top) 53*e7776783SApple OSS DistributionsLEXT(intstack_top) 54*e7776783SApple OSS Distributions 55*e7776783SApple OSS Distributions .globl EXT(intstack_high_guard) 56*e7776783SApple OSS DistributionsLEXT(intstack_high_guard) 57*e7776783SApple OSS Distributions .space (PAGE_MAX_SIZE_NUM) 58*e7776783SApple OSS Distributions 59*e7776783SApple OSS Distributions/* Low guard for fiq/exception stack is shared w/ interrupt stack high guard */ 60*e7776783SApple OSS Distributions 61*e7776783SApple OSS Distributions#ifndef __arm64__ 62*e7776783SApple OSS Distributions 63*e7776783SApple OSS Distributions .globl EXT(fiqstack) // Boot processor FIQ stack 64*e7776783SApple OSS DistributionsLEXT(fiqstack) 65*e7776783SApple OSS Distributions .space (FIQSTACK_SIZE_NUM) 66*e7776783SApple OSS Distributions .globl EXT(fiqstack_top) // Boot processor FIQ stack top 67*e7776783SApple OSS DistributionsLEXT(fiqstack_top) 68*e7776783SApple OSS Distributions 69*e7776783SApple OSS Distributions .globl EXT(fiqstack_high_guard) 70*e7776783SApple OSS DistributionsLEXT(fiqstack_high_guard) 71*e7776783SApple OSS Distributions .space (PAGE_MAX_SIZE_NUM) 72*e7776783SApple OSS Distributions 73*e7776783SApple OSS Distributions#else 74*e7776783SApple OSS Distributions 75*e7776783SApple OSS Distributions .global EXT(excepstack) 76*e7776783SApple OSS DistributionsLEXT(excepstack) 77*e7776783SApple OSS Distributions .space (EXCEPSTACK_SIZE_NUM) 78*e7776783SApple OSS Distributions .globl EXT(excepstack_top) 79*e7776783SApple OSS DistributionsLEXT(excepstack_top) 80*e7776783SApple OSS Distributions 81*e7776783SApple OSS Distributions .globl EXT(excepstack_high_guard) 82*e7776783SApple OSS DistributionsLEXT(excepstack_high_guard) 83*e7776783SApple OSS Distributions .space (PAGE_MAX_SIZE_NUM) 84*e7776783SApple OSS Distributions 85*e7776783SApple OSS Distributions#endif 86*e7776783SApple OSS Distributions 87*e7776783SApple OSS Distributions// Must align to 16K here, due to <rdar://problem/33268668> 88*e7776783SApple OSS Distributions .global EXT(kd_early_buffer) 89*e7776783SApple OSS Distributions .align 14 90*e7776783SApple OSS DistributionsLEXT(kd_early_buffer) // space for kdebug's early event buffer 91*e7776783SApple OSS Distributions .space 16*1024,0 92*e7776783SApple OSS Distributions 93*e7776783SApple OSS Distributions .section __DATA, __data // Aligned data 94*e7776783SApple OSS Distributions .align 3 // unsigned long long aligned Section 95*e7776783SApple OSS Distributions .globl EXT(RTClockData) 96*e7776783SApple OSS DistributionsLEXT(RTClockData) // Real Time clock area 97*e7776783SApple OSS Distributions .space RTCLOCKDataSize_NUM,0 // (filled with 0s) 98*e7776783SApple OSS Distributions 99*e7776783SApple OSS Distributions#if TRASH_VFP_ON_SAVE 100*e7776783SApple OSS Distributions .align 4 101*e7776783SApple OSS Distributions .globl EXT(vfptrash_data) 102*e7776783SApple OSS DistributionsLEXT(vfptrash_data) 103*e7776783SApple OSS Distributions .fill 64, 4, 0xca55e77e 104*e7776783SApple OSS Distributions#endif 105*e7776783SApple OSS Distributions 106*e7776783SApple OSS Distributions#if __arm64__ 107*e7776783SApple OSS Distributions .section __DATA, __const 108*e7776783SApple OSS Distributions 109*e7776783SApple OSS Distributions#if defined(KERNEL_INTEGRITY_KTRR) || defined(KERNEL_INTEGRITY_CTRR) 110*e7776783SApple OSS Distributions/* reserve space for read only page tables */ 111*e7776783SApple OSS Distributions .align 14 112*e7776783SApple OSS DistributionsLEXT(ropagetable_begin) 113*e7776783SApple OSS Distributions#if XNU_TARGET_OS_OSX 114*e7776783SApple OSS Distributions // A big auxKC might need more page tables, especially because 115*e7776783SApple OSS Distributions // it's not block mapped. 116*e7776783SApple OSS Distributions // Note that we don't distuinguish between KASAN or not: With 117*e7776783SApple OSS Distributions // a KASAN kernel, the effective auxKC limit is smaller. 118*e7776783SApple OSS Distributions .space 18*16*1024,0 119*e7776783SApple OSS Distributions#elif KASAN 120*e7776783SApple OSS Distributions .space 16*16*1024,0 121*e7776783SApple OSS Distributions#else 122*e7776783SApple OSS Distributions .space 14*16*1024,0 123*e7776783SApple OSS Distributions#endif 124*e7776783SApple OSS Distributions#else 125*e7776783SApple OSS DistributionsLEXT(ropagetable_begin) 126*e7776783SApple OSS Distributions#endif /* defined(KERNEL_INTEGRITY_KTRR) || defined(KERNEL_INTEGRITY_CTRR) */ 127*e7776783SApple OSS Distributions 128*e7776783SApple OSS DistributionsLEXT(ropagetable_end) 129*e7776783SApple OSS Distributions 130*e7776783SApple OSS Distributions .globl EXT(ropagetable_begin) 131*e7776783SApple OSS Distributions .globl EXT(ropagetable_end) 132*e7776783SApple OSS Distributions#endif /* __arm64__ */ 133*e7776783SApple OSS Distributions 134*e7776783SApple OSS Distributions/* vim: set ts=4: */ 135