/*
- * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2003 Apple Computer, Inc. All rights reserved.
*
* @APPLE_LICENSE_HEADER_START@
*
#include <kern/task_swap.h>
#endif /* TASK_SWAPPER */
+#ifdef __ppc__
+#include <ppc/exception.h>
+#include <ppc/hw_perfmon.h>
+#endif
+
/*
* Exported interfaces
*/
ledger_t wired,
ledger_t paged);
+void
+task_backing_store_privileged(
+ task_t task)
+{
+ task_lock(task);
+ task->priv_flags |= VM_BACKING_STORE_PRIV;
+ task_unlock(task);
+ return;
+}
+
void
task_init(void)
{
/*
* Create the kernel task as the first task.
- * Task_create_local must assign to kernel_task as a side effect,
- * for other initialization. (:-()
*/
- if (task_create_local(
- TASK_NULL, FALSE, FALSE, &kernel_task) != KERN_SUCCESS)
+ if (task_create_internal(TASK_NULL, FALSE, &kernel_task) != KERN_SUCCESS)
panic("task_init\n");
+
vm_map_deallocate(kernel_task->map);
kernel_task->map = kernel_map;
-
-#if MACH_ASSERT
- if (watchacts & WA_TASK)
- printf("task_init: kernel_task = %x map=%x\n",
- kernel_task, kernel_map);
-#endif /* MACH_ASSERT */
}
#if MACH_HOST
vm_size_t map_size,
task_t *child_task)
{
- kern_return_t result;
- task_t new_task;
- vm_map_t old_map;
-
- /*
- * Create the task.
- */
- result = task_create_local(parent_task, FALSE, TRUE, &new_task);
- if (result != KERN_SUCCESS)
- return (result);
-
- /*
- * Task_create_local creates the task with a user-space map.
- * We attempt to replace the map and free it afterwards; else
- * task_deallocate will free it (can NOT set map to null before
- * task_deallocate, this impersonates a norma placeholder task).
- * _Mark the memory as pageable_ -- this is what we
- * want for images (like servers) loaded into the kernel.
- */
- if (map_size == 0) {
- vm_map_deallocate(new_task->map);
- new_task->map = kernel_map;
- *child_task = new_task;
- } else {
- old_map = new_task->map;
- if ((result = kmem_suballoc(kernel_map, &map_base,
- map_size, TRUE, FALSE,
- &new_task->map)) != KERN_SUCCESS) {
- /*
- * New task created with ref count of 2 -- decrement by
- * one to force task deletion.
- */
- printf("kmem_suballoc(%x,%x,%x,1,0,&new) Fails\n",
- kernel_map, map_base, map_size);
- --new_task->ref_count;
- task_deallocate(new_task);
- return (result);
- }
- vm_map_deallocate(old_map);
- *child_task = new_task;
- }
- return (KERN_SUCCESS);
+ return (KERN_INVALID_ARGUMENT);
}
kern_return_t
if (parent_task == TASK_NULL)
return(KERN_INVALID_ARGUMENT);
- return task_create_local(
- parent_task, inherit_memory, FALSE, child_task);
+ return task_create_internal(
+ parent_task, inherit_memory, child_task);
}
kern_return_t
host_security_t host_security,
task_t parent_task,
security_token_t sec_token,
+ audit_token_t audit_token,
host_priv_t host_priv,
ledger_port_array_t ledger_ports,
mach_msg_type_number_t num_ledger_ports,
if (host_security == HOST_NULL)
return(KERN_INVALID_SECURITY);
- result = task_create_local(
- parent_task, inherit_memory, FALSE, child_task);
+ result = task_create_internal(
+ parent_task, inherit_memory, child_task);
if (result != KERN_SUCCESS)
return(result);
result = host_security_set_task_token(host_security,
*child_task,
sec_token,
+ audit_token,
host_priv);
if (result != KERN_SUCCESS)
}
kern_return_t
-task_create_local(
+task_create_internal(
task_t parent_task,
boolean_t inherit_memory,
- boolean_t kernel_loaded,
task_t *child_task) /* OUT */
{
task_t new_task;
new_task->map = vm_map_fork(parent_task->map);
else
new_task->map = vm_map_create(pmap_create(0),
- round_page(VM_MIN_ADDRESS),
- trunc_page(VM_MAX_ADDRESS), TRUE);
+ round_page_32(VM_MIN_ADDRESS),
+ trunc_page_32(VM_MAX_ADDRESS), TRUE);
mutex_init(&new_task->lock, ETAP_THREAD_TASK_NEW);
- queue_init(&new_task->thr_acts);
+ queue_init(&new_task->threads);
new_task->suspend_count = 0;
- new_task->thr_act_count = 0;
- new_task->res_act_count = 0;
- new_task->active_act_count = 0;
+ new_task->thread_count = 0;
+ new_task->res_thread_count = 0;
+ new_task->active_thread_count = 0;
new_task->user_stop_count = 0;
new_task->role = TASK_UNSPECIFIED;
new_task->active = TRUE;
- new_task->kernel_loaded = kernel_loaded;
new_task->user_data = 0;
new_task->faults = 0;
new_task->cow_faults = 0;
new_task->messages_sent = 0;
new_task->messages_received = 0;
new_task->syscalls_mach = 0;
+ new_task->priv_flags = 0;
new_task->syscalls_unix=0;
new_task->csw=0;
+ new_task->taskFeatures[0] = 0; /* Init task features */
+ new_task->taskFeatures[1] = 0; /* Init task features */
new_task->dynamic_working_set = 0;
task_working_set_create(new_task, TWS_SMALL_HASH_LINE_COUNT,
new_task->bsd_info = 0;
#endif /* MACH_BSD */
+#ifdef __ppc__
+ if(per_proc_info[0].pf.Available & pf64Bit) new_task->taskFeatures[0] |= tf64BitData; /* If 64-bit machine, show we have 64-bit registers at least */
+#endif
+
#if TASK_SWAPPER
new_task->swap_state = TASK_SW_IN;
new_task->swap_flags = 0;
pset = &default_pset;
new_task->sec_token = parent_task->sec_token;
+ new_task->audit_token = parent_task->audit_token;
shared_region_mapping_ref(parent_task->system_shared_region);
new_task->system_shared_region = parent_task->system_shared_region;
pset = &default_pset;
new_task->sec_token = KERNEL_SECURITY_TOKEN;
+ new_task->audit_token = KERNEL_AUDIT_TOKEN;
new_task->wired_ledger_port = ledger_copy(root_wired_ledger);
new_task->paged_ledger_port = ledger_copy(root_paged_ledger);
}
if (kernel_task == TASK_NULL) {
- new_task->priority = MINPRI_KERNEL;
+ new_task->priority = BASEPRI_KERNEL;
new_task->max_priority = MAXPRI_KERNEL;
}
else {
task_unfreeze(parent_task);
#endif /* MACH_HOST */
-#if FAST_TAS
- if (inherit_memory) {
- new_task->fast_tas_base = parent_task->fast_tas_base;
- new_task->fast_tas_end = parent_task->fast_tas_end;
- } else {
- new_task->fast_tas_base = (vm_offset_t)0;
- new_task->fast_tas_end = (vm_offset_t)0;
- }
-#endif /* FAST_TAS */
+ if (vm_backing_store_low && parent_task != NULL)
+ new_task->priv_flags |= (parent_task->priv_flags&VM_BACKING_STORE_PRIV);
ipc_task_enable(new_task);
-#if TASK_SWAPPER
- task_swapout_eligible(new_task);
-#endif /* TASK_SWAPPER */
-
-#if MACH_ASSERT
- if (watchacts & WA_TASK)
- printf("*** task_create_local(par=%x inh=%x) == 0x%x\n",
- parent_task, inherit_memory, new_task);
-#endif /* MACH_ASSERT */
-
*child_task = new_task;
return(KERN_SUCCESS);
}
if(task->dynamic_working_set)
tws_hash_destroy((tws_hash_t)task->dynamic_working_set);
-
eml_task_deallocate(task);
ipc_task_terminate(task);
task_unfreeze(task);
#endif
- if (task->kernel_loaded)
- vm_map_remove(kernel_map, task->map->min_offset,
- task->map->max_offset, VM_MAP_NO_FLAGS);
vm_map_deallocate(task->map);
is_release(task->itk_space);
task_prof_deallocate(task);
* handed over to the reaper, who will finally remove the
* thread from the task list and free the structures.
*/
- queue_iterate(&task->thr_acts, thr_act, thread_act_t, thr_acts) {
+ queue_iterate(&task->threads, thr_act, thread_act_t, task_threads) {
thread_terminate_internal(thr_act);
}
/*
- * Clean up any virtual machine state/resources associated
- * with the current activation because it may hold wiring
- * and other references on resources we will be trying to
- * release below.
+ * Give the machine dependent code a chance
+ * to perform cleanup before ripping apart
+ * the task.
*/
if (cur_thr_act->task == task)
- act_virtual_machine_destroy(cur_thr_act);
+ machine_thread_terminate_self();
task_unlock(task);
/*
* Destroy the IPC space, leaving just a reference for it.
*/
- if (!task->kernel_loaded)
- ipc_space_destroy(task->itk_space);
+ ipc_space_destroy(task->itk_space);
/*
* If the current thread is a member of the task
*/
thread_interrupt_level(interrupt_save);
+#if __ppc__
+ perfmon_release_facility(task); // notify the perfmon facility
+#endif
+
/*
* Get rid of the task active reference on itself.
*/
return(KERN_FAILURE);
}
- if (task->thr_act_count > 1) {
+ if (task->thread_count > 1) {
/*
* Mark all the threads to keep them from starting any more
* user-level execution. The thread_terminate_internal code
* handed over to the reaper, who will finally remove the
* thread from the task list and free the structures.
*/
- queue_iterate(&task->thr_acts, thr_act, thread_act_t,thr_acts) {
+ queue_iterate(&task->threads, thr_act, thread_act_t, task_threads) {
if (thr_act != cur_thr_act)
thread_terminate_internal(thr_act);
}
}
/*
- * If the current thread has any virtual machine state
- * associated with it, we need to explicitly clean that
- * up now (because we did not terminate the current act)
- * before we try to clean up the task VM and port spaces.
+ * Give the machine dependent code a chance
+ * to perform cleanup before ripping apart
+ * the task.
*/
- act_virtual_machine_destroy(cur_thr_act);
+ machine_thread_terminate_self();
task_unlock(task);
* Destroy the contents of the IPC space, leaving just
* a reference for it.
*/
- if (!task->kernel_loaded)
- ipc_space_clean(task->itk_space);
+ ipc_space_clean(task->itk_space);
/*
* Clean out the address space, as we are going to be
/*
* Iterate through all the thread_act's and hold them.
*/
- queue_iterate(&task->thr_acts, thr_act, thread_act_t, thr_acts) {
+ queue_iterate(&task->threads, thr_act, thread_act_t, task_threads) {
act_lock_thread(thr_act);
thread_hold(thr_act);
act_unlock_thread(thr_act);
* stop. Do not wait for the current thread if it is within
* the task.
*/
- queue_iterate(&task->thr_acts, thr_act, thread_act_t, thr_acts) {
+ queue_iterate(&task->threads, thr_act, thread_act_t, task_threads) {
if (thr_act != cur_thr_act) {
- thread_shuttle_t thr_shuttle;
+ thread_t thread;
- thr_shuttle = act_lock_thread(thr_act);
- thread_wait(thr_shuttle);
+ thread = act_lock_thread(thr_act);
+ thread_wait(thread);
act_unlock_thread(thr_act);
}
}
* Do not hold the current thread_act if it is within the
* task.
*/
- queue_iterate(&task->thr_acts, thr_act, thread_act_t, thr_acts) {
+ queue_iterate(&task->threads, thr_act, thread_act_t, task_threads) {
act_lock_thread(thr_act);
thread_release(thr_act);
act_unlock_thread(thr_act);
return KERN_FAILURE;
}
- actual = task->thr_act_count;
+ actual = task->thread_count;
/* do we have the memory we need? */
size_needed = actual * sizeof(mach_port_t);
/* OK, have memory and the task is locked & active */
thr_acts = (thread_act_t *) addr;
- for (i = j = 0, thr_act = (thread_act_t) queue_first(&task->thr_acts);
+ for (i = j = 0, thr_act = (thread_act_t) queue_first(&task->threads);
i < actual;
- i++, thr_act = (thread_act_t) queue_next(&thr_act->thr_acts)) {
+ i++, thr_act = (thread_act_t) queue_next(&thr_act->task_threads)) {
act_lock(thr_act);
- if (thr_act->ref_count > 0) {
- act_locked_act_reference(thr_act);
+ if (thr_act->act_ref_count > 0) {
+ act_reference_locked(thr_act);
thr_acts[j++] = thr_act;
}
act_unlock(thr_act);
}
- assert(queue_end(&task->thr_acts, (queue_entry_t) thr_act));
+ assert(queue_end(&task->threads, (queue_entry_t) thr_act));
actual = j;
size_needed = actual * sizeof(mach_port_t);
host_security_t host_security,
task_t task,
security_token_t sec_token,
+ audit_token_t audit_token,
host_priv_t host_priv)
{
+ ipc_port_t host_port;
kern_return_t kr;
if (task == TASK_NULL)
task_lock(task);
task->sec_token = sec_token;
+ task->audit_token = audit_token;
task_unlock(task);
if (host_priv != HOST_PRIV_NULL) {
- kr = task_set_special_port(task,
- TASK_HOST_PORT,
- ipc_port_make_send(realhost.host_priv_self));
+ kr = host_get_host_priv_port(host_priv, &host_port);
} else {
- kr = task_set_special_port(task,
- TASK_HOST_PORT,
- ipc_port_make_send(realhost.host_self));
+ kr = host_get_host_port(host_priv_self(), &host_port);
}
+ assert(kr == KERN_SUCCESS);
+ kr = task_set_special_port(task, TASK_HOST_PORT, host_port);
return(kr);
}
times_info->system_time.microseconds = 0;
task_lock(task);
- queue_iterate(&task->thr_acts, thr_act,
- thread_act_t, thr_acts)
+ queue_iterate(&task->threads, thr_act,
+ thread_act_t, task_threads)
{
time_value_t user_time, system_time;
spl_t s;
break;
}
+ case TASK_AUDIT_TOKEN:
+ {
+ register audit_token_t *audit_token_p;
+
+ if (*task_info_count < TASK_AUDIT_TOKEN_COUNT) {
+ return(KERN_INVALID_ARGUMENT);
+ }
+
+ audit_token_p = (audit_token_t *) task_info_out;
+
+ task_lock(task);
+ *audit_token_p = task->audit_token;
+ task_unlock(task);
+
+ *task_info_count = TASK_AUDIT_TOKEN_COUNT;
+ break;
+ }
+
case TASK_SCHED_INFO:
return(KERN_INVALID_ARGUMENT);
return kr;
}
+/*
+ * Routine:
+ * task_is_classic
+ * Purpose:
+ * Returns true if the task is a P_CLASSIC task.
+ */
+boolean_t
+task_is_classic(
+ task_t task)
+{
+ boolean_t result = FALSE;
+
+ if (task) {
+ struct proc *p = get_bsdtask_info(task);
+ result = proc_is_classic(p) ? TRUE : FALSE;
+ }
+ return result;
+}
+
/*
* We need to export some functions to other components that
* are currently implemented in macros within the osfmk
boolean_t is_kerneltask(task_t t)
{
if (t == kernel_task)
- return(TRUE);
- else
- return((t->kernel_loaded));
+ return (TRUE);
+
+ return (FALSE);
}
#undef current_task
projects / apple / xnu.git / blobdiff