/*
- * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2006 Apple Computer, Inc. All rights reserved.
*
- * @APPLE_LICENSE_HEADER_START@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
*
- * The contents of this file constitute Original Code as defined in and
- * are subject to the Apple Public Source License Version 1.1 (the
- * "License"). You may not use this file except in compliance with the
- * License. Please obtain a copy of the License at
- * http://www.apple.com/publicsource and read it before using this file.
+ * 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.
*
- * This Original Code and all software distributed under the License are
- * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * 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 OR NON-INFRINGEMENT. Please see the
- * License for the specific language governing rights and limitations
- * under the License.
+ * 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_LICENSE_HEADER_END@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
*/
/*
* @OSF_COPYRIGHT@
* Basic initialization for I386 - ISA bus machines.
*/
-#include <cpus.h>
#include <platforms.h>
-#include <mp_v1_1.h>
#include <mach_kdb.h>
-#include <himem.h>
-#include <fast_idle.h>
#include <mach/i386/vm_param.h>
#include <mach/vm_prot.h>
#include <mach/machine.h>
#include <mach/time_value.h>
-#include <kern/etap_macros.h>
#include <kern/spl.h>
#include <kern/assert.h>
#include <kern/debug.h>
#include <kern/misc_protos.h>
#include <kern/startup.h>
#include <kern/clock.h>
-#include <kern/time_out.h>
-#include <kern/xpr.h>
#include <kern/cpu_data.h>
-#include <vm/vm_page.h>
-#include <vm/pmap.h>
-#include <vm/vm_kern.h>
+#include <kern/machine.h>
#include <i386/fpu.h>
-#include <i386/pmap.h>
#include <i386/ipl.h>
-#include <i386/pio.h>
#include <i386/misc_protos.h>
-#include <i386/cpuid.h>
-#include <i386/rtclock_entries.h>
-#include <i386/AT386/mp/mp.h>
+#include <i386/mtrr.h>
+#include <i386/machine_routines.h>
+#include <i386/pmCPU.h>
+#include <i386/postcode.h>
+#include <i386/trap.h>
+#include <i386/mp.h> /* mp_rendezvous_break_lock */
+#include <architecture/i386/pio.h> /* inb() */
+#include <pexpert/i386/boot.h>
#if MACH_KDB
#include <ddb/db_aout.h>
#endif /* MACH_KDB */
-#include <ddb/tr.h>
-#ifdef __MACHO__
-#include <i386/AT386/kernBootStruct.h>
-#include <mach/boot_info.h>
-#include <mach/thread_status.h>
-#endif
-
-#if NCPUS > 1
-#include <i386/mp_desc.h>
-#endif /* NCPUS */
-
-#if MP_V1_1
-#include <i386/AT386/mp/mp_v1_1.h>
-#endif /* MP_V1_1 */
-
-vm_size_t mem_size = 0;
-vm_offset_t first_addr = 0; /* set by start.s - keep out of bss */
-vm_offset_t first_avail = 0;/* first after page tables */
-vm_offset_t last_addr;
-
-vm_offset_t avail_start, avail_end;
-vm_offset_t virtual_avail, virtual_end;
-vm_offset_t hole_start, hole_end;
-vm_offset_t avail_next;
-unsigned int avail_remaining;
-
-/* parameters passed from bootstrap loader */
-int cnvmem = 0; /* must be in .data section */
-int extmem = 0;
-
-/* FIXME!! REMOVE WHEN OSFMK DEVICES ARE COMPLETELY PULLED OUT */
-int dev_name_count = 0;
-int dev_name_list = 0;
-
-#ifndef __MACHO__
-extern char edata, end;
-#endif
-
-extern char version[];
-int rebootflag = 0; /* exported to kdintr */
+#include <vm/pmap.h>
+#include <vm/vm_map.h>
+#include <vm/vm_kern.h>
+#include <i386/mp_desc.h>
+#include <i386/mp.h>
+#include <i386/cpuid.h>
-void parse_arguments(void);
-const char *getenv(const char *);
+#include <IOKit/IOPlatformExpert.h>
+#include <IOKit/IOHibernatePrivate.h>
-#define BOOT_LINE_LENGTH 160
-char boot_string_store[BOOT_LINE_LENGTH] = {0};
-char *boot_string = (char *)0;
-int boot_string_sz = BOOT_LINE_LENGTH;
-int boottype = 0;
+#include <pexpert/i386/efi.h>
-#if __MACHO__
-#include <mach-o/loader.h>
-vm_offset_t edata, etext, end;
+#include <kern/thread.h>
+#include <i386/thread.h>
+#include <mach-o/loader.h>
+#include <mach-o/nlist.h>
-extern struct mach_header _mh_execute_header;
-void *sectTEXTB; int sectSizeTEXT;
-void *sectDATAB; int sectSizeDATA;
-void *sectOBJCB; int sectSizeOBJC;
-void *sectLINKB; int sectSizeLINK;
+void enable_bluebox(void);
+void disable_bluebox(void);
-/* Kernel boot information */
-KERNBOOTSTRUCT kernBootStructData;
-KERNBOOTSTRUCT *kernBootStruct;
-#endif
+static void machine_conf(void);
-vm_offset_t kern_args_start = 0; /* kernel arguments */
-vm_size_t kern_args_size = 0; /* size of kernel arguments */
+extern int default_preemption_rate;
+extern int max_unsafe_quanta;
+extern int max_poll_quanta;
+extern unsigned int panic_is_inited;
-#ifdef __MACHO__
+int db_run_mode;
-unsigned long
-i386_preinit()
-{
- int i;
- struct segment_command *sgp;
- struct section *sp;
-
- sgp = (struct segment_command *) getsegbyname("__DATA");
- if (sgp) {
- sp = (struct section *) firstsect(sgp);
- if (sp) {
- do {
- if (sp->flags & S_ZEROFILL)
- bzero((char *) sp->addr, sp->size);
- } while (sp = (struct section *)nextsect(sgp, sp));
- }
- }
+volatile int pbtcpu = -1;
+hw_lock_data_t pbtlock; /* backtrace print lock */
+uint32_t pbtcnt = 0;
+typedef struct _cframe_t {
+ struct _cframe_t *prev;
+ unsigned caller;
+ unsigned args[0];
+} cframe_t;
- bcopy((char *) KERNSTRUCT_ADDR, (char *) &kernBootStructData,
- sizeof(kernBootStructData));
+static unsigned panic_io_port;
+static unsigned commit_paniclog_to_nvram;
- kernBootStruct = &kernBootStructData;
-
- end = getlastaddr();
-
- for (i = 0; i < kernBootStruct->numBootDrivers; i++)
- end += kernBootStruct->driverConfig[i].size;
-
- end = round_page(end);
-
- return end;
-}
-#endif
-
-/*
- * Cpu initialization. Running virtual, but without MACH VM
- * set up. First C routine called.
- */
void
machine_startup(void)
{
+ int boot_arg;
-#ifdef __MACHO__
-
-
- /* Now copy over various bits.. */
- cnvmem = kernBootStruct->convmem;
- extmem = kernBootStruct->extmem;
- kern_args_start = (vm_offset_t) kernBootStruct->bootString;
- kern_args_size = strlen(kernBootStruct->bootString);
- boottype = kernBootStruct->rootdev;
-
- /* Now retrieve addresses for end, edata, and etext
- * from MACH-O headers.
- */
-
- sectTEXTB = (void *) getsegdatafromheader(
- &_mh_execute_header, "__TEXT", §SizeTEXT);
- sectDATAB = (void *) getsegdatafromheader(
- &_mh_execute_header, "__DATA", §SizeDATA);
- sectOBJCB = (void *) getsegdatafromheader(
- &_mh_execute_header, "__OBJC", §SizeOBJC);
- sectLINKB = (void *) getsegdatafromheader(
- &_mh_execute_header, "__LINKEDIT", §SizeLINK);
-
- etext = (vm_offset_t) sectTEXTB + sectSizeTEXT;
- edata = (vm_offset_t) sectDATAB + sectSizeDATA;
+#if 0
+ if( PE_get_hotkey( kPEControlKey ))
+ halt_in_debugger = halt_in_debugger ? 0 : 1;
#endif
- /*
- * Parse startup arguments
- */
- parse_arguments();
-
- disableDebugOuput = FALSE;
- debug_mode = TRUE;
-
- printf_init(); /* Init this in case we need debugger */
- panic_init(); /* Init this in case we need debugger */
+ if (PE_parse_boot_arg("debug", &boot_arg)) {
+ if (boot_arg & DB_HALT) halt_in_debugger=1;
+ if (boot_arg & DB_PRT) disable_debug_output=FALSE;
+ if (boot_arg & DB_SLOG) systemLogDiags=TRUE;
+ if (boot_arg & DB_NMI) panicDebugging=TRUE;
+ if (boot_arg & DB_LOG_PI_SCRN) logPanicDataToScreen=TRUE;
+ }
- PE_init_platform(FALSE, kernBootStruct);
- PE_init_kprintf(FALSE);
- PE_init_printf(FALSE);
+ if (!PE_parse_boot_arg("nvram_paniclog", &commit_paniclog_to_nvram))
+ commit_paniclog_to_nvram = 1;
/*
- * Do basic VM initialization
+ * Entering the debugger will put the CPUs into a "safe"
+ * power mode.
*/
- i386_init();
+ if (PE_parse_boot_arg("pmsafe_debug", &boot_arg))
+ pmsafe_debug = boot_arg;
- PE_init_platform(TRUE, kernBootStruct);
- PE_init_kprintf(TRUE);
- PE_init_printf(TRUE);
+#if NOTYET
+ hw_lock_init(&debugger_lock); /* initialize debugger lock */
+#endif
+ hw_lock_init(&pbtlock); /* initialize print backtrace lock */
#if MACH_KDB
-
/*
- * Initialize the kernel debugger.
+ * Initialize KDB
*/
+#if DB_MACHINE_COMMANDS
+ db_machine_commands_install(ppc_db_commands);
+#endif /* DB_MACHINE_COMMANDS */
ddb_init();
+ if (boot_arg & DB_KDB)
+ current_debugger = KDB_CUR_DB;
+
/*
* Cause a breakpoint trap to the debugger before proceeding
* any further if the proper option bit was specified in
* the boot flags.
- *
- * XXX use -a switch to invoke kdb, since there's no
- * boot-program switch to turn on RB_HALT!
*/
+ if (halt_in_debugger && (current_debugger == KDB_CUR_DB)) {
+ Debugger("inline call to debugger(machine_startup)");
+ halt_in_debugger = 0;
+ active_debugger =1;
+ }
+#endif /* MACH_KDB */
- if (halt_in_debugger) {
- printf("inline call to debugger(machine_startup)\n");
- Debugger("inline call");
+ if (PE_parse_boot_arg("preempt", &boot_arg)) {
+ default_preemption_rate = boot_arg;
+ }
+ if (PE_parse_boot_arg("unsafe", &boot_arg)) {
+ max_unsafe_quanta = boot_arg;
+ }
+ if (PE_parse_boot_arg("poll", &boot_arg)) {
+ max_poll_quanta = boot_arg;
+ }
+ if (PE_parse_boot_arg("yield", &boot_arg)) {
+ sched_poll_yield_shift = boot_arg;
+ }
+ if (PE_parse_boot_arg("idlehalt", &boot_arg)) {
+ idlehalt = boot_arg;
+ }
+/* The I/O port to issue a read from, in the event of a panic. Useful for
+ * triggering logic analyzers.
+ */
+ if (PE_parse_boot_arg("panic_io_port", &boot_arg)) {
+ /*I/O ports range from 0 through 0xFFFF */
+ panic_io_port = boot_arg & 0xffff;
}
-#endif /* MACH_KDB */
- TR_INIT();
- printf(version);
+ machine_conf();
- machine_slot[0].is_cpu = TRUE;
- machine_slot[0].running = TRUE;
-#ifdef MACH_BSD
- /* FIXME */
- machine_slot[0].cpu_type = CPU_TYPE_I386;
- machine_slot[0].cpu_subtype = CPU_SUBTYPE_PENTPRO;
-#else
- machine_slot[0].cpu_type = cpuid_cputype(0);
- machine_slot[0].cpu_subtype = CPU_SUBTYPE_AT386;
+#if NOTYET
+ ml_thrm_init(); /* Start thermal monitoring on this processor */
#endif
/*
* Start the system.
*/
-#if NCPUS > 1
- mp_desc_init(0);
-#endif /* NCPUS */
+ kernel_bootstrap();
+ /*NOTREACHED*/
+}
+
- setup_main();
+static void
+machine_conf(void)
+{
+ machine_info.memory_size = mem_size;
}
-vm_offset_t env_start = 0; /* environment */
-vm_size_t env_size = 0; /* size of environment */
+extern void *gPEEFIRuntimeServices;
+extern void *gPEEFISystemTable;
-/*
- * Parse command line arguments.
+/*-
+ * COPYRIGHT (C) 1986 Gary S. Brown. You may use this program, or
+ * code or tables extracted from it, as desired without restriction.
+ *
+ * First, the polynomial itself and its table of feedback terms. The
+ * polynomial is
+ * X^32+X^26+X^23+X^22+X^16+X^12+X^11+X^10+X^8+X^7+X^5+X^4+X^2+X^1+X^0
+ *
+ * Note that we take it "backwards" and put the highest-order term in
+ * the lowest-order bit. The X^32 term is "implied"; the LSB is the
+ * X^31 term, etc. The X^0 term (usually shown as "+1") results in
+ * the MSB being 1
+ *
+ * Note that the usual hardware shift register implementation, which
+ * is what we're using (we're merely optimizing it by doing eight-bit
+ * chunks at a time) shifts bits into the lowest-order term. In our
+ * implementation, that means shifting towards the right. Why do we
+ * do it this way? Because the calculated CRC must be transmitted in
+ * order from highest-order term to lowest-order term. UARTs transmit
+ * characters in order from LSB to MSB. By storing the CRC this way
+ * we hand it to the UART in the order low-byte to high-byte; the UART
+ * sends each low-bit to hight-bit; and the result is transmission bit
+ * by bit from highest- to lowest-order term without requiring any bit
+ * shuffling on our part. Reception works similarly
+ *
+ * The feedback terms table consists of 256, 32-bit entries. Notes
+ *
+ * The table can be generated at runtime if desired; code to do so
+ * is shown later. It might not be obvious, but the feedback
+ * terms simply represent the results of eight shift/xor opera
+ * tions for all combinations of data and CRC register values
+ *
+ * The values must be right-shifted by eight bits by the "updcrc
+ * logic; the shift must be unsigned (bring in zeroes). On some
+ * hardware you could probably optimize the shift in assembler by
+ * using byte-swap instructions
+ * polynomial $edb88320
+ *
+ *
+ * CRC32 code derived from work by Gary S. Brown.
*/
-void
-parse_arguments(void)
+
+static uint32_t crc32_tab[] = {
+ 0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419, 0x706af48f,
+ 0xe963a535, 0x9e6495a3, 0x0edb8832, 0x79dcb8a4, 0xe0d5e91e, 0x97d2d988,
+ 0x09b64c2b, 0x7eb17cbd, 0xe7b82d07, 0x90bf1d91, 0x1db71064, 0x6ab020f2,
+ 0xf3b97148, 0x84be41de, 0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7,
+ 0x136c9856, 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, 0x14015c4f, 0x63066cd9,
+ 0xfa0f3d63, 0x8d080df5, 0x3b6e20c8, 0x4c69105e, 0xd56041e4, 0xa2677172,
+ 0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b, 0x35b5a8fa, 0x42b2986c,
+ 0xdbbbc9d6, 0xacbcf940, 0x32d86ce3, 0x45df5c75, 0xdcd60dcf, 0xabd13d59,
+ 0x26d930ac, 0x51de003a, 0xc8d75180, 0xbfd06116, 0x21b4f4b5, 0x56b3c423,
+ 0xcfba9599, 0xb8bda50f, 0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924,
+ 0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d, 0x76dc4190, 0x01db7106,
+ 0x98d220bc, 0xefd5102a, 0x71b18589, 0x06b6b51f, 0x9fbfe4a5, 0xe8b8d433,
+ 0x7807c9a2, 0x0f00f934, 0x9609a88e, 0xe10e9818, 0x7f6a0dbb, 0x086d3d2d,
+ 0x91646c97, 0xe6635c01, 0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e,
+ 0x6c0695ed, 0x1b01a57b, 0x8208f4c1, 0xf50fc457, 0x65b0d9c6, 0x12b7e950,
+ 0x8bbeb8ea, 0xfcb9887c, 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3, 0xfbd44c65,
+ 0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2, 0x4adfa541, 0x3dd895d7,
+ 0xa4d1c46d, 0xd3d6f4fb, 0x4369e96a, 0x346ed9fc, 0xad678846, 0xda60b8d0,
+ 0x44042d73, 0x33031de5, 0xaa0a4c5f, 0xdd0d7cc9, 0x5005713c, 0x270241aa,
+ 0xbe0b1010, 0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f,
+ 0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17, 0x2eb40d81,
+ 0xb7bd5c3b, 0xc0ba6cad, 0xedb88320, 0x9abfb3b6, 0x03b6e20c, 0x74b1d29a,
+ 0xead54739, 0x9dd277af, 0x04db2615, 0x73dc1683, 0xe3630b12, 0x94643b84,
+ 0x0d6d6a3e, 0x7a6a5aa8, 0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1,
+ 0xf00f9344, 0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb,
+ 0x196c3671, 0x6e6b06e7, 0xfed41b76, 0x89d32be0, 0x10da7a5a, 0x67dd4acc,
+ 0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5, 0xd6d6a3e8, 0xa1d1937e,
+ 0x38d8c2c4, 0x4fdff252, 0xd1bb67f1, 0xa6bc5767, 0x3fb506dd, 0x48b2364b,
+ 0xd80d2bda, 0xaf0a1b4c, 0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55,
+ 0x316e8eef, 0x4669be79, 0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236,
+ 0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f, 0xc5ba3bbe, 0xb2bd0b28,
+ 0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31, 0x2cd99e8b, 0x5bdeae1d,
+ 0x9b64c2b0, 0xec63f226, 0x756aa39c, 0x026d930a, 0x9c0906a9, 0xeb0e363f,
+ 0x72076785, 0x05005713, 0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38,
+ 0x92d28e9b, 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21, 0x86d3d2d4, 0xf1d4e242,
+ 0x68ddb3f8, 0x1fda836e, 0x81be16cd, 0xf6b9265b, 0x6fb077e1, 0x18b74777,
+ 0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c, 0x8f659eff, 0xf862ae69,
+ 0x616bffd3, 0x166ccf45, 0xa00ae278, 0xd70dd2ee, 0x4e048354, 0x3903b3c2,
+ 0xa7672661, 0xd06016f7, 0x4969474d, 0x3e6e77db, 0xaed16a4a, 0xd9d65adc,
+ 0x40df0b66, 0x37d83bf0, 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9,
+ 0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605, 0xcdd70693,
+ 0x54de5729, 0x23d967bf, 0xb3667a2e, 0xc4614ab8, 0x5d681b02, 0x2a6f2b94,
+ 0xb40bbe37, 0xc30c8ea1, 0x5a05df1b, 0x2d02ef8d
+};
+
+static uint32_t
+crc32(uint32_t crc, const void *buf, size_t size)
{
- char *p = (char *) kern_args_start;
- char *endp = (char *) kern_args_start + kern_args_size - 1;
- char ch;
-
- if (kern_args_start == 0)
- return;
- while (p < endp) {
- if (*p++ != '-') {
- while (*p++ != '\0')
- ;
- continue;
- }
- while (ch = *p++) {
- switch (ch) {
- case 'h':
- halt_in_debugger = 1;
- break;
- case 'm': /* -m??: memory size Mbytes*/
- mem_size = atoi_term(p, &p)*1024*1024;
- break;
- case 'k': /* -k??: memory size Kbytes */
- mem_size = atoi_term(p, &p)*1024;
- break;
- default:
-#if NCPUS > 1 && AT386
- if (ch > '0' && ch <= '9')
- wncpu = ch - '0';
-#endif /* NCPUS > 1 && AT386 */
- break;
- }
- }
+ const uint8_t *p;
+
+ p = buf;
+ crc = crc ^ ~0U;
+
+ while (size--)
+ crc = crc32_tab[(crc ^ *p++) & 0xFF] ^ (crc >> 8);
+
+ return crc ^ ~0U;
+}
+
+static void
+efi_set_tables_64(EFI_SYSTEM_TABLE_64 * system_table)
+{
+ EFI_RUNTIME_SERVICES_64 *runtime;
+ uint32_t hdr_cksum;
+ uint32_t cksum;
+
+ kprintf("Processing 64-bit EFI tables at %p\n", system_table);
+ do {
+ if (system_table->Hdr.Signature != EFI_SYSTEM_TABLE_SIGNATURE) {
+ kprintf("Bad EFI system table signature\n");
+ break;
+ }
+ // Verify signature of the system table
+ hdr_cksum = system_table->Hdr.CRC32;
+ system_table->Hdr.CRC32 = 0;
+ cksum = crc32(0L, system_table, system_table->Hdr.HeaderSize);
+
+ //kprintf("System table calculated CRC32 = 0x%x, header = 0x%x\n", cksum, hdr_cksum);
+ system_table->Hdr.CRC32 = hdr_cksum;
+ if (cksum != hdr_cksum) {
+ kprintf("Bad EFI system table checksum\n");
+ break;
+ }
+
+ gPEEFISystemTable = system_table;
+
+ kprintf("RuntimeServices table at 0x%qx\n", system_table->RuntimeServices);
+ runtime = (EFI_RUNTIME_SERVICES_64 *) (uintptr_t)system_table->RuntimeServices; // XXX
+ kprintf("Checking runtime services table %p\n", runtime);
+ if (runtime->Hdr.Signature != EFI_RUNTIME_SERVICES_SIGNATURE) {
+ kprintf("Bad EFI runtime table signature\n");
+ break;
+ }
+
+ // Verify signature of runtime services table
+ hdr_cksum = runtime->Hdr.CRC32;
+ runtime->Hdr.CRC32 = 0;
+ cksum = crc32(0L, runtime, runtime->Hdr.HeaderSize);
+
+ //kprintf("Runtime table calculated CRC32 = 0x%x, header = 0x%x\n", cksum, hdr_cksum);
+ runtime->Hdr.CRC32 = hdr_cksum;
+ if (cksum != hdr_cksum) {
+ kprintf("Bad EFI runtime table checksum\n");
+ break;
}
+
+ gPEEFIRuntimeServices = runtime;
+ }
+ while (FALSE);
}
-const char *
-getenv(const char *name)
+static void
+efi_set_tables_32(EFI_SYSTEM_TABLE * system_table)
{
- int len = strlen(name);
- const char *p = (const char *)env_start;
- const char *endp = p + env_size;
+ EFI_RUNTIME_SERVICES *runtime;
+ uint32_t hdr_cksum;
+ uint32_t cksum;
+
+ kprintf("Processing 32-bit EFI tables at %p\n", system_table);
+ do {
+ if (system_table->Hdr.Signature != EFI_SYSTEM_TABLE_SIGNATURE) {
+ kprintf("Bad EFI system table signature\n");
+ break;
+ }
+ // Verify signature of the system table
+ hdr_cksum = system_table->Hdr.CRC32;
+ system_table->Hdr.CRC32 = 0;
+ cksum = crc32(0L, system_table, system_table->Hdr.HeaderSize);
+
+ //kprintf("System table calculated CRC32 = 0x%x, header = 0x%x\n", cksum, hdr_cksum);
+ system_table->Hdr.CRC32 = hdr_cksum;
+ if (cksum != hdr_cksum) {
+ kprintf("Bad EFI system table checksum\n");
+ break;
+ }
+
+ gPEEFISystemTable = system_table;
+
+ kprintf("RuntimeServices table at %p\n", system_table->RuntimeServices);
+ runtime = (EFI_RUNTIME_SERVICES *) system_table->RuntimeServices;
+ if (runtime->Hdr.Signature != EFI_RUNTIME_SERVICES_SIGNATURE) {
+ kprintf("Bad EFI runtime table signature\n");
+ break;
+ }
- while (p < endp) {
- if (len >= endp - p)
- break;
- if (strncmp(name, p, len) == 0 && *(p + len) == '=')
- return p + len + 1;
- while (*p++)
- ;
+ // Verify signature of runtime services table
+ hdr_cksum = runtime->Hdr.CRC32;
+ runtime->Hdr.CRC32 = 0;
+ cksum = crc32(0L, runtime, runtime->Hdr.HeaderSize);
+
+ //kprintf("Runtime table calculated CRC32 = 0x%x, header = 0x%x\n", cksum, hdr_cksum);
+ runtime->Hdr.CRC32 = hdr_cksum;
+ if (cksum != hdr_cksum) {
+ kprintf("Bad EFI runtime table checksum\n");
+ break;
}
- return NULL;
+
+ gPEEFIRuntimeServices = runtime;
+ }
+ while (FALSE);
}
-extern void
-calibrate_delay(void);
+
+/* Map in EFI runtime areas. */
+static void
+efi_init(void)
+{
+ boot_args *args = (boot_args *)PE_state.bootArgs;
+
+ kprintf("Initializing EFI runtime services\n");
+
+ do
+ {
+ vm_offset_t vm_size, vm_addr;
+ vm_map_offset_t phys_addr;
+ EfiMemoryRange *mptr;
+ unsigned int msize, mcount;
+ unsigned int i;
+
+ msize = args->MemoryMapDescriptorSize;
+ mcount = args->MemoryMapSize / msize;
+
+ mptr = (EfiMemoryRange *)args->MemoryMap;
+ for (i=0; i < mcount; i++, mptr = (EfiMemoryRange *)(((vm_offset_t)mptr) + msize)) {
+ if (((mptr->Attribute & EFI_MEMORY_RUNTIME) == EFI_MEMORY_RUNTIME) ) {
+ vm_size = i386_ptob((uint32_t)mptr->NumberOfPages);
+ vm_addr = (vm_offset_t) mptr->VirtualStart;
+ phys_addr = (vm_map_offset_t) mptr->PhysicalStart;
+ pmap_map(vm_addr, phys_addr, phys_addr + round_page(vm_size),
+ (mptr->Type == kEfiRuntimeServicesCode) ? VM_PROT_READ | VM_PROT_EXECUTE : VM_PROT_READ|VM_PROT_WRITE,
+ (mptr->Type == EfiMemoryMappedIO) ? VM_WIMG_IO : VM_WIMG_USE_DEFAULT);
+ }
+ }
+
+ if (args->Version > 1)
+ panic("Incompatible boot args version %d\n", args->Version);
+
+ kprintf("Boot args version %d revision %d mode %d\n", args->Version, args->Revision, args->efiMode);
+ if (args->Revision >= 4 && args->efiMode == kBootArgsEfiMode64) {
+ efi_set_tables_64((EFI_SYSTEM_TABLE_64 *) args->efiSystemTable);
+ } else {
+ efi_set_tables_32((EFI_SYSTEM_TABLE *) args->efiSystemTable);
+ }
+ }
+ while (FALSE);
+
+ return;
+}
+
+/* Remap EFI runtime areas. */
+void
+hibernate_newruntime_map(void * map, vm_size_t map_size, uint32_t system_table_offset)
+{
+ boot_args *args = (boot_args *)PE_state.bootArgs;
+
+ kprintf("Reinitializing EFI runtime services\n");
+
+ if (args->Revision < 3)
+ return;
+ do
+ {
+ vm_offset_t vm_size, vm_addr;
+ vm_map_offset_t phys_addr;
+ EfiMemoryRange *mptr;
+ unsigned int msize, mcount;
+ unsigned int i;
+
+ gPEEFISystemTable = 0;
+ gPEEFIRuntimeServices = 0;
+
+ system_table_offset += ptoa_32(args->efiRuntimeServicesPageStart);
+
+ kprintf("Old system table 0x%x, new 0x%x\n",
+ (uint32_t)args->efiSystemTable, system_table_offset);
+
+ args->efiSystemTable = system_table_offset;
+
+ kprintf("Old map:\n");
+ msize = args->MemoryMapDescriptorSize;
+ mcount = args->MemoryMapSize / msize;
+ mptr = (EfiMemoryRange *)args->MemoryMap;
+ for (i=0; i < mcount; i++, mptr = (EfiMemoryRange *)(((vm_offset_t)mptr) + msize)) {
+ if ((mptr->Attribute & EFI_MEMORY_RUNTIME) == EFI_MEMORY_RUNTIME) {
+
+ vm_size = i386_ptob((uint32_t)mptr->NumberOfPages);
+ vm_addr = (vm_offset_t) mptr->VirtualStart;
+ phys_addr = (vm_map_offset_t) mptr->PhysicalStart;
+
+ kprintf("mapping[%u] %qx @ %x, %llu\n", mptr->Type, phys_addr, vm_addr, mptr->NumberOfPages);
+ }
+ }
+
+ pmap_remove(kernel_pmap, i386_ptob(args->efiRuntimeServicesPageStart),
+ i386_ptob(args->efiRuntimeServicesPageStart + args->efiRuntimeServicesPageCount));
+
+ kprintf("New map:\n");
+ msize = args->MemoryMapDescriptorSize;
+ mcount = map_size / msize;
+ mptr = map;
+ for (i=0; i < mcount; i++, mptr = (EfiMemoryRange *)(((vm_offset_t)mptr) + msize)) {
+ if ((mptr->Attribute & EFI_MEMORY_RUNTIME) == EFI_MEMORY_RUNTIME) {
+
+ vm_size = i386_ptob((uint32_t)mptr->NumberOfPages);
+ vm_addr = (vm_offset_t) mptr->VirtualStart;
+ phys_addr = (vm_map_offset_t) mptr->PhysicalStart;
+
+ kprintf("mapping[%u] %qx @ %x, %llu\n", mptr->Type, phys_addr, vm_addr, mptr->NumberOfPages);
+
+ pmap_map(vm_addr, phys_addr, phys_addr + round_page(vm_size),
+ (mptr->Type == kEfiRuntimeServicesCode) ? VM_PROT_READ | VM_PROT_EXECUTE : VM_PROT_READ|VM_PROT_WRITE,
+ (mptr->Type == EfiMemoryMappedIO) ? VM_WIMG_IO : VM_WIMG_USE_DEFAULT);
+ }
+ }
+
+ if (args->Version > 1)
+ panic("Incompatible boot args version %d\n", args->Version);
+
+ kprintf("Boot args version %d revision %d mode %d\n", args->Version, args->Revision, args->efiMode);
+ if (args->Revision >= 4 && args->efiMode == kBootArgsEfiMode64) {
+ efi_set_tables_64((EFI_SYSTEM_TABLE_64 *) args->efiSystemTable);
+ } else {
+ efi_set_tables_32((EFI_SYSTEM_TABLE *) args->efiSystemTable);
+ }
+ }
+ while (FALSE);
+
+ kprintf("Done reinitializing EFI runtime services\n");
+
+ return;
+}
/*
* Find devices. The system is alive.
void
machine_init(void)
{
- int unit;
- const char *p;
- int n;
-
- /*
- * Adjust delay count before entering drivers
- */
-
- calibrate_delay();
+ /* Ensure panic buffer is initialized. */
+ debug_log_init();
/*
* Display CPU identification
*/
- cpuid_cpu_display("CPU identification", 0);
- cpuid_cache_display("CPU configuration", 0);
+ cpuid_cpu_display("CPU identification");
+ cpuid_feature_display("CPU features");
+ cpuid_extfeature_display("CPU extended features");
+
+ /*
+ * Initialize EFI runtime services.
+ */
+ efi_init();
-#if MP_V1_1
- mp_v1_1_init();
-#endif /* MP_V1_1 */
+ smp_init();
/*
* Set up to use floating point.
*/
init_fpu();
-#if 0
-#if NPCI > 0
- dma_zones_init();
-#endif /* NPCI > 0 */
-#endif
-
/*
* Configure clock devices.
*/
clock_config();
+
+ /*
+ * Initialize MTRR from boot processor.
+ */
+ mtrr_init();
+
+ /*
+ * Set up PAT for boot processor.
+ */
+ pat_init();
+
+ /*
+ * Free lowmem pages
+ */
+ x86_lowmem_free();
}
/*
* Halt the system or reboot.
*/
void
-halt_all_cpus(
- boolean_t reboot)
+halt_all_cpus(boolean_t reboot)
{
if (reboot) {
- /*
- * Tell the BIOS not to clear and test memory.
- */
- if (! reset_mem_on_reboot)
- *(unsigned short *)phystokv(0x472) = 0x1234;
-
- kdreboot();
+ printf("MACH Reboot\n");
+ PEHaltRestart( kPERestartCPU );
+ } else {
+ printf("CPU halted\n");
+ PEHaltRestart( kPEHaltCPU );
}
- else {
- rebootflag = 1;
- printf("In tight loop: hit ctl-alt-del to reboot\n");
- (void) spllo();
- }
- for (;;)
- continue;
+ while(1);
}
-/*
- * Basic VM initialization.
+
+/* Issue an I/O port read if one has been requested - this is an event logic
+ * analyzers can use as a trigger point.
*/
void
-i386_init(void)
-{
- int i,j; /* Standard index vars. */
- vm_size_t bios_hole_size;
-
-#ifndef __MACHO__
- /*
- * Zero the BSS.
- */
-
- bzero((char *)&edata,(unsigned)(&end - &edata));
-#endif
-
- boot_string = &boot_string_store[0];
-
- /*
- * Initialize the pic prior to any possible call to an spl.
- */
-
- set_cpu_model();
- vm_set_page_size();
-
- /*
- * Initialize the Event Trace Analysis Package
- * Static Phase: 1 of 2
- */
- etap_init_phase1();
-
- /*
- * Compute the memory size.
- */
+panic_io_port_read(void) {
+ if (panic_io_port)
+ (void)inb(panic_io_port);
+}
-#if 1
- /* FIXME
- * fdisk needs to change to use a sysctl instead of
- * opening /dev/kmem and reading out the kernboot structure
- */
+/* For use with the MP rendezvous mechanism
+ */
- first_addr = (char *)(KERNSTRUCT_ADDR) + sizeof(KERNBOOTSTRUCT);
-#else
-#if NCPUS > 1
- first_addr = 0x1000;
-#else
- /* First two pages are used to boot the other cpus. */
- /* TODO - reclaim pages after all cpus have booted */
+static void
+machine_halt_cpu(__unused void *arg) {
+ panic_io_port_read();
+ pmCPUHalt(PM_HALT_DEBUG);
+}
- first_addr = 0x3000;
-#endif
-#endif
+void
+Debugger(
+ const char *message)
+{
+ unsigned long pi_size = 0;
+ void *stackptr;
- /* BIOS leaves data in low memory */
- last_addr = 1024*1024 + extmem*1024;
- /* extended memory starts at 1MB */
-
- bios_hole_size = 1024*1024 - trunc_page((vm_offset_t)(1024 * cnvmem));
+ hw_atomic_add(&debug_mode, 1);
+ if (!panic_is_inited) {
+ postcode(PANIC_HLT);
+ asm("hlt");
+ }
- /*
- * Initialize for pmap_free_pages and pmap_next_page.
- * These guys should be page-aligned.
- */
- hole_start = trunc_page((vm_offset_t)(1024 * cnvmem));
- hole_end = round_page((vm_offset_t)first_avail);
+ printf("Debugger called: <%s>\n", message);
+ kprintf("Debugger called: <%s>\n", message);
/*
- * compute mem_size
+ * Skip the graphical panic box if no panic string.
+ * This is the case if we're being called from
+ * host_reboot(,HOST_REBOOT_DEBUGGER)
+ * as a quiet way into the debugger.
*/
- if (mem_size != 0) {
- if (mem_size < (last_addr) - bios_hole_size)
- last_addr = mem_size + bios_hole_size;
- }
+ if (panicstr) {
+ disable_preemption();
- first_addr = round_page(first_addr);
- last_addr = trunc_page(last_addr);
- mem_size = last_addr - bios_hole_size;
-
- avail_start = first_addr;
- avail_end = last_addr;
- avail_next = avail_start;
+/* Issue an I/O port read if one has been requested - this is an event logic
+ * analyzers can use as a trigger point.
+ */
+ panic_io_port_read();
- /*
- * Initialize kernel physical map, mapping the
- * region from loadpt to avail_start.
- * Kernel virtual address starts at VM_KERNEL_MIN_ADDRESS.
- */
+ /* Obtain current frame pointer */
+ __asm__ volatile("movl %%ebp, %0" : "=m" (stackptr));
+ /* Print backtrace - callee is internally synchronized */
+ panic_i386_backtrace(stackptr, 16);
-#if NCPUS > 1 && AT386
- /*
- * Must Allocate interrupt stacks before kdb is called and also
- * before vm is initialized. Must find out number of cpus first.
- */
- /*
- * Get number of cpus to boot, passed as an optional argument
- * boot: mach [-sah#] # from 0 to 9 is the number of cpus to boot
- */
- if (wncpu == -1) {
- /*
- * "-1" check above is to allow for old boot loader to pass
- * wncpu through boothowto. New boot loader uses environment.
+ /* everything should be printed now so copy to NVRAM
*/
- const char *cpus;
- if ((cpus = getenv("cpus")) != NULL) {
- /* only a single digit for now */
- if ((*cpus > '0') && (*cpus <= '9'))
- wncpu = *cpus - '0';
- } else
- wncpu = NCPUS;
- }
- mp_probe_cpus();
- interrupt_stack_alloc();
-#endif /* NCPUS > 1 && AT386 */
+ if( debug_buf_size > 0) {
+ /* Optionally sync the panic log, if any, to NVRAM
+ * This is the default.
+ */
+ if (commit_paniclog_to_nvram) {
+ unsigned int bufpos;
+
+ debug_putc(0);
+
+ /* Now call the compressor */
+ /* XXX Consider using the WKdm compressor in the
+ * future, rather than just packing - would need to
+ * be co-ordinated with crashreporter, which decodes
+ * this post-restart. The compressor should be
+ * capable of in-place compression.
+ */
+ bufpos = packA(debug_buf,
+ (unsigned int) (debug_buf_ptr - debug_buf), debug_buf_size);
+ /* If compression was successful,
+ * use the compressed length
+ */
+ pi_size = bufpos ? bufpos : (unsigned) (debug_buf_ptr - debug_buf);
+
+ /* Save panic log to non-volatile store
+ * Panic info handler must truncate data that is
+ * too long for this platform.
+ * This call must save data synchronously,
+ * since we can subsequently halt the system.
+ */
+ kprintf("Attempting to commit panic log to NVRAM\n");
+ pi_size = PESavePanicInfo((unsigned char *)debug_buf,
+ pi_size );
+
+ /* Uncompress in-place, to permit examination of
+ * the panic log by debuggers.
+ */
+
+ if (bufpos) {
+ unpackA(debug_buf, bufpos);
+ }
+ }
+ }
+ draw_panic_dialog();
+
+ if (!panicDebugging) {
+ /* Clear the MP rendezvous function lock, in the event
+ * that a panic occurred while in that codepath.
+ */
+ mp_rendezvous_break_lock();
+#if CONFIG_EMBEDDED
+ PEHaltRestart(kPEPanicRestartCPU);
+#else
+ /* Force all CPUs to disable interrupts and HLT.
+ * We've panicked, and shouldn't depend on the
+ * PEHaltRestart() mechanism, which relies on several
+ * bits of infrastructure.
+ */
+ mp_rendezvous_no_intrs(machine_halt_cpu, NULL);
+#endif
+ /* NOT REACHED */
+ }
+ }
- pmap_bootstrap(0);
+ __asm__("int3");
+ hw_atomic_sub(&debug_mode, 1);
+}
- avail_remaining = atop((avail_end - avail_start) -
- (hole_end - hole_start));
+void
+enable_bluebox(void)
+{
}
-unsigned int
-pmap_free_pages(void)
+void
+disable_bluebox(void)
{
- return avail_remaining;
}
-boolean_t
-pmap_next_page(
- vm_offset_t *addrp)
+char *
+machine_boot_info(char *buf, __unused vm_size_t size)
{
- if (avail_next == avail_end)
- return FALSE;
+ *buf ='\0';
+ return buf;
+}
- /* skip the hole */
- if (avail_next == hole_start)
- avail_next = hole_end;
+struct pasc {
+ unsigned a: 7;
+ unsigned b: 7;
+ unsigned c: 7;
+ unsigned d: 7;
+ unsigned e: 7;
+ unsigned f: 7;
+ unsigned g: 7;
+ unsigned h: 7;
+} __attribute__((packed));
- *addrp = avail_next;
- avail_next += PAGE_SIZE;
- avail_remaining--;
+typedef struct pasc pasc_t;
- return TRUE;
-}
+/* Routines for address - symbol translation. Not called unless the "keepsyms"
+ * boot-arg is supplied.
+ */
-boolean_t
-pmap_valid_page(
- vm_offset_t x)
+static int
+panic_print_macho_symbol_name(struct mach_header *mh, vm_address_t search)
{
- return ((avail_start <= x) && (x < avail_end));
+ struct nlist *sym = NULL;
+ struct load_command *cmd;
+ struct segment_command *orig_ts = NULL, *orig_le = NULL;
+ struct symtab_command *orig_st = NULL;
+ unsigned int i;
+ char *strings, *bestsym = NULL;
+ vm_address_t bestaddr = 0, diff, curdiff;
+
+ if (mh->magic != MH_MAGIC) {
+ /* bad magic number */
+ return 0;
+ }
+
+ cmd = (struct load_command *) &mh[1];
+ for (i = 0; i < mh->ncmds; i++) {
+ if (cmd->cmd == LC_SEGMENT) {
+ struct segment_command *orig_sg = (struct segment_command *) cmd;
+
+ if (strncmp(SEG_TEXT, orig_sg->segname,
+ sizeof(orig_sg->segname)) == 0)
+ orig_ts = orig_sg;
+ else if (strncmp(SEG_LINKEDIT, orig_sg->segname,
+ sizeof(orig_sg->segname)) == 0)
+ orig_le = orig_sg;
+ else if (strncmp("", orig_sg->segname,
+ sizeof(orig_sg->segname)) == 0)
+ orig_ts = orig_sg; /* kexts have a single unnamed segment */
+ }
+ else if (cmd->cmd == LC_SYMTAB)
+ orig_st = (struct symtab_command *) cmd;
+
+ cmd = (struct load_command *) ((caddr_t) cmd + cmd->cmdsize);
+ }
+
+ if ((orig_ts == NULL) || (orig_st == NULL) || (orig_le == NULL))
+ return 0;
+
+ /* kexts don't have a LINKEDIT segment for now, so we'll never get this far for kexts */
+
+ vm_address_t slide = ((vm_address_t)mh) - orig_ts->vmaddr;
+ if (slide != 0)
+ search -= slide; /* adjusting search since the binary has slid */
+
+ if ((search < orig_ts->vmaddr) ||
+ (search >= orig_ts->vmaddr + orig_ts->vmsize)) {
+ /* search out of range for this mach header */
+ return 0;
+ }
+
+ sym = (struct nlist *)orig_le->vmaddr;
+ strings = ((char *)sym) + orig_st->nsyms * sizeof(struct nlist);
+ diff = search;
+
+ for (i = 0; i < orig_st->nsyms; i++) {
+ if (sym[i].n_value <= search) {
+ curdiff = search - (vm_address_t)sym[i].n_value;
+ if (curdiff < diff) {
+ diff = curdiff;
+ bestaddr = sym[i].n_value;
+ bestsym = strings + sym[i].n_un.n_strx;
+ }
+ }
+ }
+
+ if (bestsym != NULL) {
+ if (diff != 0) {
+ kdb_printf("%s + 0x%08x \n", bestsym, diff);
+ } else {
+ kdb_printf("%s \n", bestsym);
+ }
+ return 1;
+ }
+ return 0;
}
-/*XXX*/
-void fc_get(mach_timespec_t *ts);
-#include <kern/clock.h>
-#include <i386/rtclock_entries.h>
-extern kern_return_t sysclk_gettime(
- mach_timespec_t *cur_time);
-void fc_get(mach_timespec_t *ts) {
- (void )sysclk_gettime(ts);
-}
+extern kmod_info_t * kmod; /* the list of modules */
-void
-Debugger(
- const char *message)
+static void
+panic_print_kmod_symbol_name(vm_address_t search)
{
- printf("Debugger called: <%s>\n", message);
+ kmod_info_t * current_kmod = kmod;
+
+ while (current_kmod != NULL) {
+ if ((current_kmod->address <= search) &&
+ (current_kmod->address + current_kmod->size > search))
+ break;
+ current_kmod = current_kmod->next;
+ }
+ if (current_kmod != NULL) {
+ /* if kexts had symbol table loaded, we'd call search_symbol_name again; alas, they don't */
+ kdb_printf("%s + %d \n", current_kmod->name, search - current_kmod->address);
+ }
+}
- __asm__("int3");
+extern struct mach_header _mh_execute_header; /* the kernel's mach header */
+
+static void
+panic_print_symbol_name(vm_address_t search)
+{
+ /* try searching in the kernel */
+ if (panic_print_macho_symbol_name(&_mh_execute_header, search) == 0) {
+ /* that failed, now try to search for the right kext */
+ panic_print_kmod_symbol_name(search);
+ }
}
+/* Generate a backtrace, given a frame pointer - this routine
+ * should walk the stack safely. The trace is appended to the panic log
+ * and conditionally, to the console. If the trace contains kernel module
+ * addresses, display the module name, load address and dependencies.
+ */
+
+#define DUMPFRAMES 32
+#define PBT_TIMEOUT_CYCLES (5 * 1000 * 1000 * 1000ULL)
void
-display_syscall(int syscall)
+panic_i386_backtrace(void *_frame, int nframes)
{
- printf("System call happened %d\n", syscall);
-}
+ cframe_t *frame = (cframe_t *)_frame;
+ vm_offset_t raddrs[DUMPFRAMES];
+ int frame_index;
+ volatile uint32_t *ppbtcnt = &pbtcnt;
+ uint64_t bt_tsc_timeout;
+ boolean_t keepsyms = FALSE;
+
+ if(pbtcpu != cpu_number()) {
+ hw_atomic_add(&pbtcnt, 1);
+ /* Spin on print backtrace lock, which serializes output
+ * Continue anyway if a timeout occurs.
+ */
+ hw_lock_to(&pbtlock, LockTimeOutTSC);
+ pbtcpu = cpu_number();
+ }
-#if XPR_DEBUG && (NCPUS == 1 || MP_V1_1)
+ PE_parse_boot_arg("keepsyms", &keepsyms);
-extern kern_return_t sysclk_gettime_interrupts_disabled(
- mach_timespec_t *cur_time);
+ kdb_printf("Backtrace, "
+ "Format - Frame : Return Address (4 potential args on stack) \n");
-int xpr_time(void)
-{
- mach_timespec_t time;
+ for (frame_index = 0; frame_index < nframes; frame_index++) {
+ vm_offset_t curframep = (vm_offset_t) frame;
- sysclk_gettime_interrupts_disabled(&time);
- return(time.tv_sec*1000000 + time.tv_nsec/1000);
-}
-#endif /* XPR_DEBUG && (NCPUS == 1 || MP_V1_1) */
+ if (!curframep)
+ break;
-enable_bluebox()
-{
-}
-disable_bluebox()
-{
-}
+ if (curframep & 0x3) {
+ kdb_printf("Unaligned frame\n");
+ goto invalid;
+ }
-char *
-machine_boot_info(char *buf, vm_size_t size)
-{
- *buf ='\0';
- return buf;
-}
+ if (!kvtophys(curframep) ||
+ !kvtophys(curframep + sizeof(cframe_t))) {
+ kdb_printf("No mapping exists for frame pointer\n");
+ goto invalid;
+ }
+ kdb_printf("%p : 0x%x ", frame, frame->caller);
+ if (frame_index < DUMPFRAMES)
+ raddrs[frame_index] = frame->caller;
+
+ if (kvtophys((vm_offset_t)&(frame->args[3])))
+ kdb_printf("(0x%x 0x%x 0x%x 0x%x) \n",
+ frame->args[0], frame->args[1],
+ frame->args[2], frame->args[3]);
+
+ /* Display address-symbol translation only if the "keepsyms"
+ * boot-arg is suppplied, since we unload LINKEDIT otherwise.
+ * This routine is potentially unsafe; also, function
+ * boundary identification is unreliable after a strip -x.
+ */
+ if (keepsyms)
+ panic_print_symbol_name((vm_address_t)frame->caller);
+
+ /* Stack grows downward */
+ if (frame->prev < frame) {
+ frame = frame->prev;
+ goto invalid;
+ }
+ frame = frame->prev;
+ }
+
+ if (frame_index >= nframes)
+ kdb_printf("\tBacktrace continues...\n");
+
+ goto out;
+
+invalid:
+ kdb_printf("Backtrace terminated-invalid frame pointer %p\n",frame);
+out:
+
+ /* Identify kernel modules in the backtrace and display their
+ * load addresses and dependencies. This routine should walk
+ * the kmod list safely.
+ */
+ if (frame_index)
+ kmod_dump((vm_offset_t *)&raddrs[0], frame_index);
+
+ panic_display_system_configuration();
+ /* Release print backtrace lock, to permit other callers in the
+ * event of panics on multiple processors.
+ */
+ hw_lock_unlock(&pbtlock);
+ hw_atomic_sub(&pbtcnt, 1);
+ /* Wait for other processors to complete output
+ * Timeout and continue after PBT_TIMEOUT_CYCLES.
+ */
+ bt_tsc_timeout = rdtsc64() + PBT_TIMEOUT_CYCLES;
+ while(*ppbtcnt && (rdtsc64() < bt_tsc_timeout));
+}
projects / apple / xnu.git / blobdiff