X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/8ad349bb6ed4a0be06e34c92be0d98b92e078db4..5d5c5d0d5b79ade9a973d55186ffda2638ba2b6e:/osfmk/i386/i386_init.c
diff --git a/osfmk/i386/i386_init.c b/osfmk/i386/i386_init.c
index 45034034c..887624b23 100644
--- a/osfmk/i386/i386_init.c
+++ b/osfmk/i386/i386_init.c
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2003 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2003-2005 Apple Computer, Inc. All rights reserved.
*
* @APPLE_LICENSE_OSREFERENCE_HEADER_START@
*
@@ -58,7 +58,6 @@
#include <platforms.h>
#include <mach_kdb.h>
-#include <himem.h>
#include <mach/i386/vm_param.h>
@@ -73,120 +72,100 @@
#include <kern/misc_protos.h>
#include <kern/startup.h>
#include <kern/clock.h>
+#include <kern/pms.h>
#include <kern/xpr.h>
#include <kern/cpu_data.h>
#include <kern/processor.h>
+#include <console/serial_protos.h>
#include <vm/vm_page.h>
#include <vm/pmap.h>
#include <vm/vm_kern.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/mp.h>
+#include <i386/mp_desc.h>
#include <i386/machine_routines.h>
#include <i386/postcode.h>
+#include <i386/Diagnostics.h>
+#include <i386/pmCPU.h>
+#include <i386/tsc.h>
+#include <i386/hpet.h>
#if MACH_KDB
#include <ddb/db_aout.h>
#endif /* MACH_KDB */
#include <ddb/tr.h>
-#ifdef __MACHO__
-#include <mach/thread_status.h>
-static KernelBootArgs_t *kernelBootArgs;
-#endif
+static boot_args *kernelBootArgs;
-vm_offset_t boot_args_start = 0; /* pointer to kernel arguments, set in start.s */
-
-#ifdef __MACHO__
-#include <mach-o/loader.h>
-vm_offset_t edata, etext, end;
+extern int disableConsoleOutput;
+extern const char version[];
+extern const char version_variant[];
+extern int nx_enabled;
-/* operations only against currently loaded 32 bit mach kernel */
-extern struct segment_command *getsegbyname(const char *);
-extern struct section *firstsect(struct segment_command *);
-extern struct section *nextsect(struct segment_command *, struct section *);
+extern int noVMX; /* if set, rosetta should not emulate altivec */
-/*
- * Called first for a mach-o kernel before paging is set up.
- * Returns the first available physical address in memory.
- */
+void cpu_stack_set(void);
-void
-i386_preinit(void)
-{
- struct segment_command *sgp;
- struct section *sp;
- struct KernelBootArgs *pp;
- int i;
-
- sgp = getsegbyname("__DATA");
- if (sgp) {
- sp = firstsect(sgp);
- if (sp) {
- do {
- if ((sp->flags & S_ZEROFILL))
- bzero((char *) sp->addr, sp->size);
- } while ((sp = nextsect(sgp, sp)));
- }
- }
-
- kernelBootArgs = (KernelBootArgs_t *)
- ml_static_ptovirt(boot_args_start);
- pp = (struct KernelBootArgs *) kernelBootArgs;
- pp->configEnd = (char *)
- ml_static_ptovirt((vm_offset_t) pp->configEnd);
- for (i = 0; i < pp->numBootDrivers; i++) {
- pp->driverConfig[i].address = (unsigned)
- ml_static_ptovirt(pp->driverConfig[i].address);
- }
- return;
-}
-#endif
-
-extern const char version[];
-extern const char version_variant[];
/*
* Cpu initialization. Running virtual, but without MACH VM
- * set up. First C routine called, unless i386_preinit() was called first.
+ * set up. First C routine called.
*/
void
-i386_init(void)
+i386_init(vm_offset_t boot_args_start)
{
unsigned int maxmem;
+ uint64_t maxmemtouse;
unsigned int cpus;
+ boolean_t legacy_mode;
postcode(I386_INIT_ENTRY);
- master_cpu = 0;
- cpu_data_alloc(TRUE);
- cpu_init();
- postcode(CPU_INIT_D);
+ i386_macho_zerofill();
/*
- * Setup some processor related structures to satisfy funnels.
- * Must be done before using unparallelized device drivers.
+ * Setup boot args given the physical start address.
*/
- processor_bootstrap();
+ kernelBootArgs = (boot_args *)
+ ml_static_ptovirt(boot_args_start);
+ kernelBootArgs->MemoryMap = (uint32_t)
+ ml_static_ptovirt((vm_offset_t)kernelBootArgs->MemoryMap);
+ kernelBootArgs->deviceTreeP = (uint32_t)
+ ml_static_ptovirt((vm_offset_t)kernelBootArgs->deviceTreeP);
+
+ master_cpu = 0;
+ (void) cpu_data_alloc(TRUE);
+ cpu_init();
+ postcode(CPU_INIT_D);
+ /* init processor performance control */
+ pmsInit();
+
PE_init_platform(FALSE, kernelBootArgs);
postcode(PE_INIT_PLATFORM_D);
- /*
- * Set up initial thread so current_thread() works early on
- */
- thread_bootstrap();
- postcode(THREAD_BOOTSTRAP_D);
-
printf_init(); /* Init this in case we need debugger */
panic_init(); /* Init this in case we need debugger */
/* setup debugging output if one has been chosen */
PE_init_kprintf(FALSE);
+ if (!PE_parse_boot_arg("diag", &dgWork.dgFlags))
+ dgWork.dgFlags = 0;
+
+ serialmode = 0;
+ if(PE_parse_boot_arg("serial", &serialmode)) {
+ /* We want a serial keyboard and/or console */
+ kprintf("Serial mode specified: %08X\n", serialmode);
+ }
+ if(serialmode & 1) {
+ (void)switch_to_serial_console();
+ disableConsoleOutput = FALSE; /* Allow printfs to happen */
+ }
+
/* setup console output */
PE_init_printf(FALSE);
@@ -198,22 +177,55 @@ i386_init(void)
* The maximum number of cpus must be set beforehand.
*/
if (!PE_parse_boot_arg("maxmem", &maxmem))
- maxmem=0;
+ maxmemtouse=0;
else
- maxmem = maxmem * (1024 * 1024);
+ maxmemtouse = ((uint64_t)maxmem) * (uint64_t)(1024 * 1024);
if (PE_parse_boot_arg("cpus", &cpus)) {
if ((0 < cpus) && (cpus < max_ncpus))
max_ncpus = cpus;
}
- i386_vm_init(maxmem, kernelBootArgs);
+ /*
+ * debug support for > 4G systems
+ */
+ if (!PE_parse_boot_arg("himemory_mode", &vm_himemory_mode))
+ vm_himemory_mode = 0;
+
+ /*
+ * At this point we check whether we are a 64-bit processor
+ * and that we're not restricted to legacy mode, 32-bit operation.
+ */
+ boolean_t IA32e = FALSE;
+ if (cpuid_extfeatures() & CPUID_EXTFEATURE_EM64T) {
+ kprintf("EM64T supported");
+ if (PE_parse_boot_arg("-legacy", &legacy_mode)) {
+ kprintf(" but legacy mode forced\n");
+ } else {
+ IA32e = TRUE;
+ kprintf(" and will be enabled\n");
+ }
+ }
+ if (!(cpuid_extfeatures() & CPUID_EXTFEATURE_XD))
+ nx_enabled = 0;
+
+ i386_vm_init(maxmemtouse, IA32e, kernelBootArgs);
+
+ if ( ! PE_parse_boot_arg("novmx", &noVMX))
+ noVMX = 0; /* OK to support Altivec in rosetta? */
+
+ tsc_init();
+ hpet_init();
+ power_management_init();
PE_init_platform(TRUE, kernelBootArgs);
/* create the console for verbose or pretty mode */
PE_create_console();
+ processor_bootstrap();
+ thread_bootstrap();
+
machine_startup();
}