/*
- * Copyright (c) 2000-2005 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
*
- * @APPLE_LICENSE_HEADER_START@
+ * @APPLE_LICENSE_OSREFERENCE_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 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.
- *
- * @APPLE_LICENSE_HEADER_END@
+ * 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_LICENSE_OSREFERENCE_HEADER_END@
*/
/*
* @OSF_COPYRIGHT@
#include <platforms.h>
#include <mach_kdb.h>
+#include <himem.h>
#include <mach/i386/vm_param.h>
#include <kern/machine.h>
#include <i386/fpu.h>
#include <i386/ipl.h>
+#include <i386/pio.h>
#include <i386/misc_protos.h>
+#include <i386/mp.h>
#include <i386/mtrr.h>
-#include <i386/machine_routines.h>
-#include <i386/pmCPU.h>
#include <i386/postcode.h>
-#include <architecture/i386/pio.h> /* inb() */
#include <pexpert/i386/boot.h>
#if MACH_KDB
#include <ddb/db_aout.h>
#endif /* MACH_KDB */
-#include <vm/pmap.h>
-#include <vm/vm_map.h>
-#include <vm/vm_kern.h>
-
#include <i386/mp_desc.h>
#include <i386/mp.h>
#include <IOKit/IOPlatformExpert.h>
-#include <IOKit/IOHibernatePrivate.h>
-
-#include <pexpert/i386/efi.h>
-
-#include <kern/thread.h>
-#include <i386/thread.h>
-#include <mach-o/loader.h>
-#include <mach-o/nlist.h>
void enable_bluebox(void);
void disable_bluebox(void);
extern int idlehalt;
extern unsigned int panic_is_inited;
-int db_run_mode;
-
-static int packAsc (uint8_t *inbuf, unsigned int length);
-extern int kdb_printf(const char *fmt, ...);
-
-volatile int pbtcpu = -1;
-hw_lock_data_t pbtlock; /* backtrace print lock */
-uint32_t pbtcnt = 0;
-
-extern const char version[];
-
-typedef struct _cframe_t {
- struct _cframe_t *prev;
- unsigned caller;
- unsigned args[0];
-} cframe_t;
-
-void panic_i386_backtrace(void *_frame, int nframes);
-
-unsigned panic_io_port = 0;
-
void
machine_startup()
{
#if NOTYET
hw_lock_init(&debugger_lock); /* initialize debugger lock */
-#endif
hw_lock_init(&pbtlock); /* initialize print backtrace lock */
+#endif
#if MACH_KDB
/*
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;
- }
-
-/*
- * fn is used to force napping.
- * fn=0 means no napping allowed
- * fn=1 means forces napping on, normal C2 and C4 transitions
- * fn=2 means forces napping on, but C4 is disabled
- * fn=3 means forces napping on, but use halt
- * fn=4 means forces napping on and will always use C4
- *
- * Note that this will take effect only when the system normally starts napping.
- *
- */
-
- if (!PE_parse_boot_arg("fn", &forcenap)) forcenap = 0; /* If force nap not set, make 0 */
- else {
- if(forcenap < 5) forcenap = forcenap + 1; /* See comments above for decode, this is set to fn + 1 */
- else forcenap = 0; /* Clear for error case */
- }
- machine_nap_policy(); /* Make sure the nap policy reflects the user's choice */
machine_conf();
machine_info.memory_size = mem_size;
}
-
-extern void *gPEEFIRuntimeServices;
-extern void *gPEEFISystemTable;
-
-/*-
- * 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.
- */
-
-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)
-{
- 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 0x%x\n", (unsigned int)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 *) (uint32_t)system_table->RuntimeServices; // XXX
- kprintf("Checking runtime services table 0x%x\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);
-}
-
-static void
-efi_set_tables_32(EFI_SYSTEM_TABLE * system_table)
-{
- EFI_RUNTIME_SERVICES *runtime;
- uint32_t hdr_cksum;
- uint32_t cksum;
-
- kprintf("Processing 32-bit EFI tables at 0x%x\n", (unsigned int)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;
-
- runtime = (EFI_RUNTIME_SERVICES *) system_table->RuntimeServices;
- 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);
-}
-
-
-/* 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 %p, new %p\n",
- args->efiSystemTable, (void *) system_table_offset);
-
- args->efiSystemTable = (uint32_t) 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[%d] %qx @ %x, %x\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[%d] %qx @ %x, %x\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)
{
- /* Ensure panic buffer is initialized. */
- debug_log_init();
-
/*
* Display CPU identification
*/
- cpuid_cpu_display("CPU identification");
- cpuid_feature_display("CPU features");
- cpuid_extfeature_display("CPU extended features");
+ cpuid_cpu_display("CPU identification", 0);
+ cpuid_feature_display("CPU features", 0);
- /*
- * Initialize EFI runtime services.
- */
- efi_init();
smp_init();
halt_all_cpus(boolean_t reboot)
{
if (reboot) {
+ /*
+ * Tell the BIOS not to clear and test memory.
+ */
+#if 0 /* XXX fixme */
+ if (!reset_mem_on_reboot)
+ *(unsigned short *)phystokv(0x472) = 0x1234;
+#endif
+
printf("MACH Reboot\n");
PEHaltRestart( kPERestartCPU );
} else {
while(1);
}
-/* For use with the MP rendezvous mechanism
- */
-
-static void
-machine_halt_cpu(__unused void *arg) {
- __asm__ volatile("hlt");
+/*XXX*/
+void fc_get(mach_timespec_t *ts);
+#include <kern/clock.h>
+extern kern_return_t sysclk_gettime(
+ mach_timespec_t *cur_time);
+void fc_get(mach_timespec_t *ts) {
+ (void )sysclk_gettime(ts);
}
void
Debugger(
const char *message)
{
- unsigned long pi_size = 0;
- void *stackptr;
- hw_atomic_add(&debug_mode, 1);
if (!panic_is_inited) {
postcode(PANIC_HLT);
asm("hlt");
}
-
printf("Debugger called: <%s>\n", message);
kprintf("Debugger called: <%s>\n", message);
- /*
- * 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 (panicstr) {
- disable_preemption();
-
-/* Issue an I/O port read if one has been requested - this is an event logic
- * analyzers can use as a trigger point.
- */
- if (panic_io_port)
- (void)inb(panic_io_port);
-
- /* Obtain current frame pointer */
- __asm__ volatile("movl %%ebp, %0" : "=m" (stackptr));
-
- /* Print backtrace - callee is internally synchronized */
- panic_i386_backtrace(stackptr, 16);
-
- /* everything should be printed now so copy to NVRAM
- */
-
- if( debug_buf_size > 0) {
- /* Do not compress the panic log
- * or save to NVRAM unless kernel debugging
- * is disabled. The NVRAM shim doesn't
- * sync to the store until haltRestart is called.
- */
- if (!panicDebugging) {
- 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.
- */
- bufpos = packAsc ((uint8_t *)debug_buf,
- (unsigned int) (debug_buf_ptr - debug_buf) );
- /* If compression was successful,
- * use the compressed length
- */
- if (bufpos) {
- debug_buf_ptr = debug_buf + bufpos;
- }
- /* 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.
- */
- pi_size = debug_buf_ptr - debug_buf;
- pi_size = PESavePanicInfo((unsigned char *)debug_buf,
- pi_size );
- }
- }
- 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();
- /* 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);
- /* NOT REACHED */
- }
- }
+ draw_panic_dialog();
__asm__("int3");
- hw_atomic_sub(&debug_mode, 1);
}
void
enable_bluebox(void)
{
}
-
void
disable_bluebox(void)
{
return buf;
}
-
-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));
-
-typedef struct pasc pasc_t;
-
-static int packAsc (unsigned char *inbuf, unsigned int length)
-{
- unsigned int i, j = 0;
- unsigned int extra;
- pasc_t pack;
-
- for (i = 0; i < length; i+=8)
- {
- pack.a = inbuf[i];
- pack.b = inbuf[i+1];
- pack.c = inbuf[i+2];
- pack.d = inbuf[i+3];
- pack.e = inbuf[i+4];
- pack.f = inbuf[i+5];
- pack.g = inbuf[i+6];
- pack.h = inbuf[i+7];
- bcopy ((char *) &pack, inbuf + j, 7);
- j += 7;
- }
- extra = (i - length);
- if (extra > 0) {
- inbuf[j - extra] &= (0xFF << (8-extra));
- }
- return j-((extra == 7) ? 6 : extra);
-}
-
-/* Routines for address - symbol translation. Not called unless the "keepsyms"
- * boot-arg is supplied.
- */
-
-static int
-panic_print_macho_symbol_name(struct mach_header *mh, vm_address_t search)
-{
- 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 (strcmp(SEG_TEXT, orig_sg->segname) == 0)
- orig_ts = orig_sg;
- else if (strcmp(SEG_LINKEDIT, orig_sg->segname) == 0)
- orig_le = orig_sg;
- else if (strcmp("", 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 ", bestsym, diff);
- } else {
- kdb_printf("%s ", bestsym);
- }
- return 1;
- }
- return 0;
-}
-
-extern kmod_info_t * kmod; /* the list of modules */
-
-static void
-panic_print_kmod_symbol_name(vm_address_t search)
-{
- 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 ", current_kmod->name, search - current_kmod->address);
- }
-}
-
-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
-panic_i386_backtrace(void *_frame, int nframes)
-{
- 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, LockTimeOut*100);
- pbtcpu = cpu_number();
- }
-
- PE_parse_boot_arg("keepsyms", &keepsyms);
-
- kdb_printf("Backtrace, "
- "Format - Frame : Return Address (4 potential args on stack) ");
-
- for (frame_index = 0; frame_index < nframes; frame_index++) {
- vm_offset_t curframep = (vm_offset_t) frame;
-
- if (!curframep)
- break;
-
- if (curframep & 0x3) {
- kdb_printf("Unaligned frame\n");
- goto invalid;
- }
-
- if (!kvtophys(curframep) ||
- !kvtophys(curframep + sizeof(cframe_t))) {
- kdb_printf("No mapping exists for frame pointer\n");
- goto invalid;
- }
-
- kdb_printf("\n0x%x : 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) ",
- 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 0x%x\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);
-
- kdb_printf("\nKernel version:\n%s\n\n",version);
-
- /* 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