// Init
status_t
HaikuKernelFileSystem::Init()
{
status_t error = fLock.InitCheck();
if (error != B_OK)
RETURN_ERROR(error);
// init condition variables
condition_variable_init();
// TODO: Call the cleanup methods, if something goes wrong!
// init block cache
error = block_cache_init();
if (error != B_OK)
RETURN_ERROR(error);
// init file map
error = file_map_init();
if (error != B_OK)
RETURN_ERROR(error);
// create I/O request map
fIORequests = new(std::nothrow) IORequestTable;
if (fIORequests == NULL)
RETURN_ERROR(B_NO_MEMORY);
error = fIORequests->Init();
if (error != B_OK)
RETURN_ERROR(error);
// create the node capabilites map
fNodeCapabilities = new(std::nothrow) NodeCapabilitiesTable;
if (fNodeCapabilities == NULL)
RETURN_ERROR(B_NO_MEMORY);
error = fNodeCapabilities->Init();
if (error != B_OK)
RETURN_ERROR(error);
// call the kernel module initialization (if any)
if (!fFSModule->info.std_ops)
return B_OK;
error = fFSModule->info.std_ops(B_MODULE_INIT);
if (error != B_OK)
RETURN_ERROR(error);
return B_OK;
}
extern "C" int
_start(kernel_args *bootKernelArgs, int currentCPU)
{
if (bootKernelArgs->kernel_args_size != sizeof(kernel_args)
|| bootKernelArgs->version != CURRENT_KERNEL_ARGS_VERSION) {
// This is something we cannot handle right now - release kernels
// should always be able to handle the kernel_args of earlier
// released kernels.
debug_early_boot_message("Version mismatch between boot loader and "
"kernel!\n");
return -1;
}
smp_set_num_cpus(bootKernelArgs->num_cpus);
// wait for all the cpus to get here
smp_cpu_rendezvous(&sCpuRendezvous, currentCPU);
// the passed in kernel args are in a non-allocated range of memory
if (currentCPU == 0)
memcpy(&sKernelArgs, bootKernelArgs, sizeof(kernel_args));
smp_cpu_rendezvous(&sCpuRendezvous2, currentCPU);
// do any pre-booting cpu config
cpu_preboot_init_percpu(&sKernelArgs, currentCPU);
thread_preboot_init_percpu(&sKernelArgs, currentCPU);
// if we're not a boot cpu, spin here until someone wakes us up
if (smp_trap_non_boot_cpus(currentCPU, &sCpuRendezvous3)) {
// init platform
arch_platform_init(&sKernelArgs);
// setup debug output
debug_init(&sKernelArgs);
set_dprintf_enabled(true);
dprintf("Welcome to kernel debugger output!\n");
dprintf("Haiku revision: %lu\n", get_haiku_revision());
// init modules
TRACE("init CPU\n");
cpu_init(&sKernelArgs);
cpu_init_percpu(&sKernelArgs, currentCPU);
TRACE("init interrupts\n");
int_init(&sKernelArgs);
TRACE("init VM\n");
vm_init(&sKernelArgs);
// Before vm_init_post_sem() is called, we have to make sure that
// the boot loader allocated region is not used anymore
boot_item_init();
debug_init_post_vm(&sKernelArgs);
low_resource_manager_init();
// now we can use the heap and create areas
arch_platform_init_post_vm(&sKernelArgs);
lock_debug_init();
TRACE("init driver_settings\n");
driver_settings_init(&sKernelArgs);
debug_init_post_settings(&sKernelArgs);
TRACE("init notification services\n");
notifications_init();
TRACE("init teams\n");
team_init(&sKernelArgs);
TRACE("init ELF loader\n");
elf_init(&sKernelArgs);
TRACE("init modules\n");
module_init(&sKernelArgs);
TRACE("init semaphores\n");
haiku_sem_init(&sKernelArgs);
TRACE("init interrupts post vm\n");
int_init_post_vm(&sKernelArgs);
cpu_init_post_vm(&sKernelArgs);
commpage_init();
TRACE("init system info\n");
system_info_init(&sKernelArgs);
TRACE("init SMP\n");
smp_init(&sKernelArgs);
TRACE("init timer\n");
timer_init(&sKernelArgs);
TRACE("init real time clock\n");
rtc_init(&sKernelArgs);
TRACE("init condition variables\n");
condition_variable_init();
// now we can create and use semaphores
TRACE("init VM semaphores\n");
vm_init_post_sem(&sKernelArgs);
TRACE("init generic syscall\n");
generic_syscall_init();
smp_init_post_generic_syscalls();
TRACE("init scheduler\n");
scheduler_init();
TRACE("init threads\n");
thread_init(&sKernelArgs);
TRACE("init kernel daemons\n");
kernel_daemon_init();
arch_platform_init_post_thread(&sKernelArgs);
TRACE("init I/O interrupts\n");
int_init_io(&sKernelArgs);
TRACE("init VM threads\n");
vm_init_post_thread(&sKernelArgs);
low_resource_manager_init_post_thread();
TRACE("init VFS\n");
vfs_init(&sKernelArgs);
#if ENABLE_SWAP_SUPPORT
TRACE("init swap support\n");
swap_init();
#endif
TRACE("init POSIX semaphores\n");
realtime_sem_init();
xsi_sem_init();
xsi_msg_init();
// Start a thread to finish initializing the rest of the system. Note,
// it won't be scheduled before calling scheduler_start() (on any CPU).
TRACE("spawning main2 thread\n");
thread_id thread = spawn_kernel_thread(&main2, "main2",
B_NORMAL_PRIORITY, NULL);
resume_thread(thread);
// We're ready to start the scheduler and enable interrupts on all CPUs.
scheduler_enable_scheduling();
// bring up the AP cpus in a lock step fashion
TRACE("waking up AP cpus\n");
sCpuRendezvous = sCpuRendezvous2 = 0;
smp_wake_up_non_boot_cpus();
smp_cpu_rendezvous(&sCpuRendezvous, 0); // wait until they're booted
// exit the kernel startup phase (mutexes, etc work from now on out)
TRACE("exiting kernel startup\n");
gKernelStartup = false;
smp_cpu_rendezvous(&sCpuRendezvous2, 0);
// release the AP cpus to go enter the scheduler
TRACE("starting scheduler on cpu 0 and enabling interrupts\n");
scheduler_start();
enable_interrupts();
} else {
// lets make sure we're in sync with the main cpu
// the boot processor has probably been sending us
// tlb sync messages all along the way, but we've
// been ignoring them
arch_cpu_global_TLB_invalidate();
// this is run for each non boot processor after they've been set loose
cpu_init_percpu(&sKernelArgs, currentCPU);
smp_per_cpu_init(&sKernelArgs, currentCPU);
// wait for all other AP cpus to get to this point
smp_cpu_rendezvous(&sCpuRendezvous, currentCPU);
smp_cpu_rendezvous(&sCpuRendezvous2, currentCPU);
// welcome to the machine
scheduler_start();
enable_interrupts();
}
#ifdef TRACE_BOOT
// We disable interrupts for this dprintf(), since otherwise dprintf()
// would acquires a mutex, which is something we must not do in an idle
// thread, or otherwise the scheduler would be seriously unhappy.
disable_interrupts();
TRACE("main: done... begin idle loop on cpu %d\n", currentCPU);
enable_interrupts();
#endif
for (;;)
arch_cpu_idle();
return 0;
}
