osfmk/i386/startup64.c

   1 /*
   2  * Copyright (c) 2006-2012 Apple Inc. All rights reserved.
   3  *
   4  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
   5  *
   6  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License. The rights granted to you under the License
  10  * may not be used to create, or enable the creation or redistribution of,
  11  * unlawful or unlicensed copies of an Apple operating system, or to
  12  * circumvent, violate, or enable the circumvention or violation of, any
  13  * terms of an Apple operating system software license agreement.
  14  *
  15  * Please obtain a copy of the License at
  16  * http://www.opensource.apple.com/apsl/ and read it before using this file.
  17  *
  18  * The Original Code and all software distributed under the License are
  19  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  20  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  21  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  22  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  23  * Please see the License for the specific language governing rights and
  24  * limitations under the License.
  25  *
  26  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  27  */
  28
  29 #include <string.h>
  30
  31 #include <mach/machine/vm_types.h>
  32
  33 #include <mach/boolean.h>
  34 #include <kern/thread.h>
  35 #include <kern/zalloc.h>
  36
  37 #include <kern/lock.h>
  38 #include <kern/kalloc.h>
  39 #include <kern/spl.h>
  40
  41 #include <vm/pmap.h>
  42 #include <vm/vm_map.h>
  43 #include <vm/vm_kern.h>
  44 #include <mach/vm_param.h>
  45 #include <mach/vm_prot.h>
  46 #include <vm/vm_object.h>
  47 #include <vm/vm_page.h>
  48
  49 #include <mach/machine/vm_param.h>
  50 #include <machine/thread.h>
  51
  52 #include <kern/misc_protos.h>                   /* prototyping */
  53 #include <i386/misc_protos.h>
  54
  55 #include <i386/cpuid.h>
  56 #include <i386/cpu_data.h>
  57 #include <i386/mp.h>
  58 #include <i386/cpu_number.h>
  59 #include <i386/machine_cpu.h>
  60 #include <i386/seg.h>
  61
  62 #include <vm/vm_protos.h>
  63
  64 #include <sys/kdebug.h>
  65
  66 #include <i386/postcode.h>
  67
  68 #if DEBUG
  69 extern void dump_regs64(void);
  70 extern void dump_gdt(void *);
  71 extern void dump_ldt(void *);
  72 extern void dump_idt(void *);
  73 extern void dump_tss(void *);
  74 extern void dump_frame32(x86_saved_state32_t *sp);
  75 extern void dump_frame64(x86_saved_state64_t *sp);
  76 extern void dump_frame(x86_saved_state_t *sp);
  77
  78 void
  79 dump_frame(x86_saved_state_t *sp)
  80 {
  81         if (is_saved_state32(sp))
  82                 dump_frame32(&sp->ss_32);
  83         else if (is_saved_state64(sp))
  84                 dump_frame64(&sp->ss_64);
  85         else
  86                 kprintf("dump_frame(%p) unknown type %d\n", sp, sp->flavor);
  87 }
  88
  89 void
  90 dump_frame32(x86_saved_state32_t *sp)
  91 {
  92         unsigned int    i;
  93         uint32_t        *ip = (uint32_t *) sp;
  94
  95         kprintf("dump_frame32(%p):\n", sp);
  96
  97         for (i = 0;
  98              i < sizeof(x86_saved_state32_t)/sizeof(uint32_t);
  99              i++, ip++)
 100                 kprintf("%p: 0x%08x\n", ip, *ip);
 101
 102         kprintf("sp->gs:     0x%08x\n", sp->gs);
 103         kprintf("sp->fs:     0x%08x\n", sp->fs);
 104         kprintf("sp->es:     0x%08x\n", sp->es);
 105         kprintf("sp->ds:     0x%08x\n", sp->ds);
 106         kprintf("sp->edi:    0x%08x\n", sp->edi);
 107         kprintf("sp->esi:    0x%08x\n", sp->esi);
 108         kprintf("sp->ebp:    0x%08x\n", sp->ebp);
 109         kprintf("sp->cr2:    0x%08x\n", sp->cr2);
 110         kprintf("sp->ebx:    0x%08x\n", sp->ebx);
 111         kprintf("sp->edx:    0x%08x\n", sp->edx);
 112         kprintf("sp->ecx:    0x%08x\n", sp->ecx);
 113         kprintf("sp->eax:    0x%08x\n", sp->eax);
 114         kprintf("sp->trapno: 0x%08x\n", sp->eax);
 115         kprintf("sp->eip:    0x%08x\n", sp->eip);
 116         kprintf("sp->cs:     0x%08x\n", sp->cs);
 117         kprintf("sp->efl:    0x%08x\n", sp->efl);
 118         kprintf("sp->uesp:   0x%08x\n", sp->uesp);
 119         kprintf("sp->ss:     0x%08x\n", sp->ss);
 120
 121         postcode(0x99);
 122 }
 123
 124 void
 125 dump_frame64(x86_saved_state64_t *sp)
 126 {
 127         unsigned int    i;
 128         uint64_t        *ip = (uint64_t *) sp;
 129
 130         kprintf("dump_frame64(%p):\n", sp);
 131
 132         for (i = 0;
 133              i < sizeof(x86_saved_state64_t)/sizeof(uint64_t);
 134              i++, ip++)
 135                 kprintf("%p: 0x%016llx\n", ip, *ip);
 136
 137         kprintf("sp->isf.trapno: 0x%08x\n", sp->isf.trapno);
 138         kprintf("sp->isf.trapfn: 0x%016llx\n", sp->isf.trapfn);
 139         kprintf("sp->isf.err:    0x%016llx\n", sp->isf.err);
 140         kprintf("sp->isf.rip:    0x%016llx\n", sp->isf.rip);
 141         kprintf("sp->isf.cs:     0x%016llx\n", sp->isf.cs);
 142         kprintf("sp->isf.rflags: 0x%016llx\n", sp->isf.rflags);
 143         kprintf("sp->isf.rsp:    0x%016llx\n", sp->isf.rsp);
 144         kprintf("sp->isf.ss:     0x%016llx\n", sp->isf.ss);
 145
 146         kprintf("sp->fs:         0x%016x\n", sp->fs);
 147         kprintf("sp->gs:         0x%016x\n", sp->gs);
 148         kprintf("sp->rax:        0x%016llx\n", sp->rax);
 149         kprintf("sp->rcx:        0x%016llx\n", sp->rcx);
 150         kprintf("sp->rbx:        0x%016llx\n", sp->rbx);
 151         kprintf("sp->rbp:        0x%016llx\n", sp->rbp);
 152         kprintf("sp->r11:        0x%016llx\n", sp->r11);
 153         kprintf("sp->r12:        0x%016llx\n", sp->r12);
 154         kprintf("sp->r13:        0x%016llx\n", sp->r13);
 155         kprintf("sp->r14:        0x%016llx\n", sp->r14);
 156         kprintf("sp->r15:        0x%016llx\n", sp->r15);
 157         kprintf("sp->cr2:        0x%016llx\n", sp->cr2);
 158         kprintf("sp->v_arg8:     0x%016llx\n", sp->v_arg8);
 159         kprintf("sp->v_arg7:     0x%016llx\n", sp->v_arg7);
 160         kprintf("sp->v_arg6:     0x%016llx\n", sp->v_arg6);
 161         kprintf("sp->r9:         0x%016llx\n", sp->r9);
 162         kprintf("sp->r8:         0x%016llx\n", sp->r8);
 163         kprintf("sp->r10:        0x%016llx\n", sp->r10);
 164         kprintf("sp->rdx:        0x%016llx\n", sp->rdx);
 165         kprintf("sp->rsi:        0x%016llx\n", sp->rsi);
 166         kprintf("sp->rdi:        0x%016llx\n", sp->rdi);
 167
 168         postcode(0x98);
 169 }
 170
 171 void
 172 dump_gdt(void *gdtp)
 173 {
 174         unsigned int    i;
 175         uint32_t        *ip = (uint32_t *) gdtp;
 176
 177         kprintf("GDT:\n");
 178         for (i = 0; i < GDTSZ; i++, ip += 2) {
 179                 kprintf("%p: 0x%08x\n", ip+0, *(ip+0));
 180                 kprintf("%p: 0x%08x\n", ip+1, *(ip+1));
 181         }
 182 }
 183
 184 void
 185 dump_ldt(void *ldtp)
 186 {
 187         unsigned int    i;
 188         uint32_t        *ip = (uint32_t *) ldtp;
 189
 190         kprintf("LDT:\n");
 191         for (i = 0; i < LDTSZ_MIN; i++, ip += 2) {
 192                 kprintf("%p: 0x%08x\n", ip+0, *(ip+0));
 193                 kprintf("%p: 0x%08x\n", ip+1, *(ip+1));
 194         }
 195 }
 196
 197 void
 198 dump_idt(void *idtp)
 199 {
 200         unsigned int    i;
 201         uint32_t        *ip = (uint32_t *) idtp;
 202
 203         kprintf("IDT64:\n");
 204         for (i = 0; i < 16; i++, ip += 4) {
 205                 kprintf("%p: 0x%08x\n", ip+0, *(ip+0));
 206                 kprintf("%p: 0x%08x\n", ip+1, *(ip+1));
 207                 kprintf("%p: 0x%08x\n", ip+2, *(ip+2));
 208                 kprintf("%p: 0x%08x\n", ip+3, *(ip+3));
 209         }
 210 }
 211
 212 void
 213 dump_tss(void *tssp)
 214 {
 215         unsigned int    i;
 216         uint32_t        *ip = (uint32_t *) tssp;
 217
 218         kprintf("TSS64:\n");
 219         for (i = 0; i < sizeof(master_ktss64)/sizeof(uint32_t); i++, ip++) {
 220                 kprintf("%p: 0x%08x\n", ip+0, *(ip+0));
 221         }
 222 }
 223
 224 void dump_regs64(void)
 225 {
 226
 227 #define SNAP_REG(reg)                                           \
 228         uint64_t        reg;                                    \
 229         __asm__ volatile("mov %%" #reg ", %0" : "=m" (reg))
 230
 231 #define KPRINT_REG(reg)                                         \
 232         kprintf("%3s: %p\n", #reg, (void *) reg)
 233
 234         SNAP_REG(rsp);
 235         SNAP_REG(rbp);
 236         SNAP_REG(rax);
 237         SNAP_REG(rbx);
 238         SNAP_REG(rcx);
 239         SNAP_REG(rdx);
 240         SNAP_REG(rsi);
 241         SNAP_REG(rdi);
 242         SNAP_REG(r8);
 243         SNAP_REG(r9);
 244         SNAP_REG(r10);
 245         SNAP_REG(r11);
 246         SNAP_REG(r12);
 247         SNAP_REG(r13);
 248         SNAP_REG(r14);
 249
 250         KPRINT_REG(rsp);
 251         KPRINT_REG(rbp);
 252         KPRINT_REG(rax);
 253         KPRINT_REG(rbx);
 254         KPRINT_REG(rcx);
 255         KPRINT_REG(rdx);
 256         KPRINT_REG(rsi);
 257         KPRINT_REG(rdi);
 258         KPRINT_REG(r8);
 259         KPRINT_REG(r9);
 260         KPRINT_REG(r10);
 261         KPRINT_REG(r11);
 262         KPRINT_REG(r12);
 263         KPRINT_REG(r13);
 264         KPRINT_REG(r14);
 265 }
 266 #endif /* DEBUG */