* Copyright (c) 2000-2009 Apple Inc. All rights reserved.
*
* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
- *
+ *
* 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
* 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,
* 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_OSREFERENCE_LICENSE_HEADER_END@
*/
/*
* @OSF_COPYRIGHT@
*/
-/*
+/*
* Mach Operating System
* Copyright (c) 1991,1990,1989,1988 Carnegie Mellon University
* All Rights Reserved.
- *
+ *
* Permission to use, copy, modify and distribute this software and its
* documentation is hereby granted, provided that both the copyright
* notice and this permission notice appear in all copies of the
* software, derivative works or modified versions, and any portions
* thereof, and that both notices appear in supporting documentation.
- *
+ *
* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
* ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
- *
+ *
* Carnegie Mellon requests users of this software to return to
- *
+ *
* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
* School of Computer Science
* Carnegie Mellon University
* Pittsburgh PA 15213-3890
- *
+ *
* any improvements or extensions that they make and grant Carnegie Mellon
* the rights to redistribute these changes.
*/
#include <security/mac_mach_internal.h>
+#if defined(CONFIG_XNUPOST)
+
+#include <tests/xnupost.h>
+
+#endif /* CONFIG_XNUPOST */
/*
* Exported interface
#include <mach/mach_host_server.h>
#include <mach/processor_set_server.h>
-struct processor_set pset0;
-struct pset_node pset_node0;
-decl_simple_lock_data(static,pset_node_lock)
+struct processor_set pset0;
+struct pset_node pset_node0;
+decl_simple_lock_data(static, pset_node_lock)
-queue_head_t tasks;
-queue_head_t terminated_tasks; /* To be used ONLY for stackshot. */
-queue_head_t corpse_tasks;
-int tasks_count;
-int terminated_tasks_count;
-queue_head_t threads;
-int threads_count;
-decl_lck_mtx_data(,tasks_threads_lock)
-decl_lck_mtx_data(,tasks_corpse_lock)
+lck_grp_t pset_lck_grp;
-processor_t processor_list;
-unsigned int processor_count;
-static processor_t processor_list_tail;
-decl_simple_lock_data(,processor_list_lock)
+queue_head_t tasks;
+queue_head_t terminated_tasks; /* To be used ONLY for stackshot. */
+queue_head_t corpse_tasks;
+int tasks_count;
+int terminated_tasks_count;
+queue_head_t threads;
+int threads_count;
+decl_lck_mtx_data(, tasks_threads_lock)
+decl_lck_mtx_data(, tasks_corpse_lock)
+
+processor_t processor_list;
+unsigned int processor_count;
+static processor_t processor_list_tail;
+decl_simple_lock_data(, processor_list_lock)
+
+uint32_t processor_avail_count;
+uint32_t processor_avail_count_user;
+
+processor_t master_processor;
+int master_cpu = 0;
+boolean_t sched_stats_active = FALSE;
+
+processor_t processor_array[MAX_SCHED_CPUS] = { 0 };
+
+#if defined(CONFIG_XNUPOST)
+kern_return_t ipi_test(void);
+extern void arm64_ipi_test(void);
+
+kern_return_t
+ipi_test()
+{
+#if __arm64__
+ processor_t p;
+
+ for (p = processor_list; p != NULL; p = p->processor_list) {
+ thread_bind(p);
+ thread_block(THREAD_CONTINUE_NULL);
+ kprintf("Running IPI test on cpu %d\n", p->cpu_id);
+ arm64_ipi_test();
+ }
-uint32_t processor_avail_count;
+ /* unbind thread from specific cpu */
+ thread_bind(PROCESSOR_NULL);
+ thread_block(THREAD_CONTINUE_NULL);
-processor_t master_processor;
-int master_cpu = 0;
-boolean_t sched_stats_active = FALSE;
+ T_PASS("Done running IPI tests");
+#else
+ T_PASS("Unsupported platform. Not running IPI tests");
-processor_t processor_array[MAX_SCHED_CPUS] = { 0 };
+#endif /* __arm64__ */
+ return KERN_SUCCESS;
+}
+#endif /* defined(CONFIG_XNUPOST) */
+int sched_enable_smt = 1;
void
processor_bootstrap(void)
{
- pset_init(&pset0, &pset_node0);
- pset_node0.psets = &pset0;
+ lck_grp_init(&pset_lck_grp, "pset", LCK_GRP_ATTR_NULL);
simple_lock_init(&pset_node_lock, 0);
+ pset_node0.psets = &pset0;
+ pset_init(&pset0, &pset_node0);
+
queue_init(&tasks);
queue_init(&terminated_tasks);
queue_init(&threads);
*/
void
processor_init(
- processor_t processor,
- int cpu_id,
- processor_set_t pset)
+ processor_t processor,
+ int cpu_id,
+ processor_set_t pset)
{
- spl_t s;
+ spl_t s;
if (processor != master_processor) {
/* Scheduler state for master_processor initialized in sched_init() */
SCHED(processor_init)(processor);
}
+ assert(cpu_id < MAX_SCHED_CPUS);
+
processor->state = PROCESSOR_OFF_LINE;
processor->active_thread = processor->next_thread = processor->idle_thread = THREAD_NULL;
processor->processor_set = pset;
processor->processor_self = IP_NULL;
processor_data_init(processor);
processor->processor_list = NULL;
+ processor->cpu_quiesce_state = CPU_QUIESCE_COUNTER_NONE;
+ processor->cpu_quiesce_last_checkin = 0;
+ processor->must_idle = false;
s = splsched();
pset_lock(pset);
bit_set(pset->cpu_bitmask, cpu_id);
- if (pset->cpu_set_count++ == 0)
+ if (pset->cpu_set_count++ == 0) {
pset->cpu_set_low = pset->cpu_set_hi = cpu_id;
- else {
+ } else {
pset->cpu_set_low = (cpu_id < pset->cpu_set_low)? cpu_id: pset->cpu_set_low;
pset->cpu_set_hi = (cpu_id > pset->cpu_set_hi)? cpu_id: pset->cpu_set_hi;
}
pset_unlock(pset);
splx(s);
- simple_lock(&processor_list_lock);
- if (processor_list == NULL)
+ simple_lock(&processor_list_lock, LCK_GRP_NULL);
+ if (processor_list == NULL) {
processor_list = processor;
- else
+ } else {
processor_list_tail->processor_list = processor;
+ }
processor_list_tail = processor;
processor_count++;
- assert(cpu_id < MAX_SCHED_CPUS);
processor_array[cpu_id] = processor;
simple_unlock(&processor_list_lock);
}
void
processor_set_primary(
- processor_t processor,
- processor_t primary)
+ processor_t processor,
+ processor_t primary)
{
assert(processor->processor_primary == primary || processor->processor_primary == processor);
/* Re-adjust primary point for this (possibly) secondary processor */
/* Mark both processors as SMT siblings */
primary->is_SMT = TRUE;
processor->is_SMT = TRUE;
+
+ processor_set_t pset = processor->processor_set;
+ spl_t s = splsched();
+ pset_lock(pset);
+ bit_clear(pset->primary_map, processor->cpu_id);
+ pset_unlock(pset);
+ splx(s);
}
}
processor_set_t
processor_pset(
- processor_t processor)
+ processor_t processor)
{
- return (processor->processor_set);
+ return processor->processor_set;
}
void
processor_state_update_idle(processor_t processor)
{
- processor->current_pri = IDLEPRI;
- processor->current_sfi_class = SFI_CLASS_KERNEL;
- processor->current_recommended_pset_type = PSET_SMP;
- processor->current_perfctl_class = PERFCONTROL_CLASS_IDLE;
+ processor->current_pri = IDLEPRI;
+ processor->current_sfi_class = SFI_CLASS_KERNEL;
+ processor->current_recommended_pset_type = PSET_SMP;
+ processor->current_perfctl_class = PERFCONTROL_CLASS_IDLE;
+ processor->current_urgency = THREAD_URGENCY_NONE;
+ processor->current_is_NO_SMT = false;
+ processor->current_is_bound = false;
}
void
processor_state_update_from_thread(processor_t processor, thread_t thread)
{
- processor->current_pri = thread->sched_pri;
- processor->current_sfi_class = thread->sfi_class;
- processor->current_recommended_pset_type = recommended_pset_type(thread);
- processor->current_perfctl_class = thread_get_perfcontrol_class(thread);
+ processor->current_pri = thread->sched_pri;
+ processor->current_sfi_class = thread->sfi_class;
+ processor->current_recommended_pset_type = recommended_pset_type(thread);
+ processor->current_perfctl_class = thread_get_perfcontrol_class(thread);
+ processor->current_urgency = thread_get_urgency(thread, NULL, NULL);
+#if DEBUG || DEVELOPMENT
+ processor->current_is_NO_SMT = (thread->sched_flags & TH_SFLAG_NO_SMT) || (thread->task->t_flags & TF_NO_SMT);
+#else
+ processor->current_is_NO_SMT = (thread->sched_flags & TH_SFLAG_NO_SMT);
+#endif
+ processor->current_is_bound = thread->bound_processor != PROCESSOR_NULL;
}
void
-processor_state_update_explicit(processor_t processor, int pri, sfi_class_id_t sfi_class,
- pset_cluster_type_t pset_type, perfcontrol_class_t perfctl_class)
+processor_state_update_explicit(processor_t processor, int pri, sfi_class_id_t sfi_class,
+ pset_cluster_type_t pset_type, perfcontrol_class_t perfctl_class, thread_urgency_t urgency)
{
- processor->current_pri = pri;
- processor->current_sfi_class = sfi_class;
- processor->current_recommended_pset_type = pset_type;
- processor->current_perfctl_class = perfctl_class;
+ processor->current_pri = pri;
+ processor->current_sfi_class = sfi_class;
+ processor->current_recommended_pset_type = pset_type;
+ processor->current_perfctl_class = perfctl_class;
+ processor->current_urgency = urgency;
}
pset_node_t
processor_set_t
pset_create(
- pset_node_t node)
+ pset_node_t node)
{
/* some schedulers do not support multiple psets */
- if (SCHED(multiple_psets_enabled) == FALSE)
+ if (SCHED(multiple_psets_enabled) == FALSE) {
return processor_pset(master_processor);
+ }
- processor_set_t *prev, pset = kalloc(sizeof (*pset));
+ processor_set_t *prev, pset = kalloc(sizeof(*pset));
if (pset != PROCESSOR_SET_NULL) {
pset_init(pset, node);
- simple_lock(&pset_node_lock);
+ simple_lock(&pset_node_lock, LCK_GRP_NULL);
prev = &node->psets;
- while (*prev != PROCESSOR_SET_NULL)
+ while (*prev != PROCESSOR_SET_NULL) {
prev = &(*prev)->pset_list;
+ }
*prev = pset;
simple_unlock(&pset_node_lock);
}
- return (pset);
+ return pset;
}
/*
uint32_t cluster_id,
processor_set_t default_pset)
{
- simple_lock(&pset_node_lock);
+ simple_lock(&pset_node_lock, LCK_GRP_NULL);
pset_node_t node = &pset_node0;
processor_set_t pset = NULL;
do {
pset = node->psets;
while (pset != NULL) {
- if (pset->pset_cluster_id == cluster_id)
+ if (pset->pset_cluster_id == cluster_id) {
break;
+ }
pset = pset->pset_list;
}
} while ((node = node->node_list) != NULL);
simple_unlock(&pset_node_lock);
- if (pset == NULL)
+ if (pset == NULL) {
return default_pset;
- return (pset);
+ }
+ return pset;
}
/*
*/
void
pset_init(
- processor_set_t pset,
- pset_node_t node)
+ processor_set_t pset,
+ pset_node_t node)
{
if (pset != &pset0) {
/* Scheduler state for pset0 initialized in sched_init() */
SCHED(rt_init)(pset);
}
- queue_init(&pset->active_queue);
- queue_init(&pset->idle_queue);
- queue_init(&pset->idle_secondary_queue);
- queue_init(&pset->unused_queue);
pset->online_processor_count = 0;
- pset->active_processor_count = 0;
pset->load_average = 0;
pset->cpu_set_low = pset->cpu_set_hi = 0;
pset->cpu_set_count = 0;
+ pset->last_chosen = -1;
pset->cpu_bitmask = 0;
pset->recommended_bitmask = ~0ULL;
- pset->pending_AST_cpu_mask = 0;
+ pset->primary_map = ~0ULL;
+ pset->cpu_state_map[PROCESSOR_OFF_LINE] = ~0ULL;
+ for (uint i = PROCESSOR_SHUTDOWN; i < PROCESSOR_STATE_LEN; i++) {
+ pset->cpu_state_map[i] = 0;
+ }
+ pset->pending_AST_URGENT_cpu_mask = 0;
+ pset->pending_AST_PREEMPT_cpu_mask = 0;
#if defined(CONFIG_SCHED_DEFERRED_AST)
pset->pending_deferred_AST_cpu_mask = 0;
#endif
pset->node = node;
pset->pset_cluster_type = PSET_SMP;
pset->pset_cluster_id = 0;
+
+ simple_lock(&pset_node_lock, LCK_GRP_NULL);
+ node->pset_count++;
+ simple_unlock(&pset_node_lock);
}
kern_return_t
processor_info_count(
- processor_flavor_t flavor,
- mach_msg_type_number_t *count)
+ processor_flavor_t flavor,
+ mach_msg_type_number_t *count)
{
switch (flavor) {
-
case PROCESSOR_BASIC_INFO:
*count = PROCESSOR_BASIC_INFO_COUNT;
break;
break;
default:
- return (cpu_info_count(flavor, count));
+ return cpu_info_count(flavor, count);
}
- return (KERN_SUCCESS);
+ return KERN_SUCCESS;
}
kern_return_t
processor_info(
- processor_t processor,
- processor_flavor_t flavor,
- host_t *host,
- processor_info_t info,
- mach_msg_type_number_t *count)
+ processor_t processor,
+ processor_flavor_t flavor,
+ host_t *host,
+ processor_info_t info,
+ mach_msg_type_number_t *count)
{
- int cpu_id, state;
- kern_return_t result;
+ int cpu_id, state;
+ kern_return_t result;
- if (processor == PROCESSOR_NULL)
- return (KERN_INVALID_ARGUMENT);
+ if (processor == PROCESSOR_NULL) {
+ return KERN_INVALID_ARGUMENT;
+ }
cpu_id = processor->cpu_id;
switch (flavor) {
-
case PROCESSOR_BASIC_INFO:
{
- processor_basic_info_t basic_info;
+ processor_basic_info_t basic_info;
- if (*count < PROCESSOR_BASIC_INFO_COUNT)
- return (KERN_FAILURE);
+ if (*count < PROCESSOR_BASIC_INFO_COUNT) {
+ return KERN_FAILURE;
+ }
basic_info = (processor_basic_info_t) info;
basic_info->cpu_type = slot_type(cpu_id);
basic_info->cpu_subtype = slot_subtype(cpu_id);
state = processor->state;
- if (state == PROCESSOR_OFF_LINE)
+ if (state == PROCESSOR_OFF_LINE
+#if defined(__x86_64__)
+ || !processor->is_recommended
+#endif
+ ) {
basic_info->running = FALSE;
- else
+ } else {
basic_info->running = TRUE;
+ }
basic_info->slot_num = cpu_id;
- if (processor == master_processor)
+ if (processor == master_processor) {
basic_info->is_master = TRUE;
- else
+ } else {
basic_info->is_master = FALSE;
+ }
*count = PROCESSOR_BASIC_INFO_COUNT;
*host = &realhost;
- return (KERN_SUCCESS);
+ return KERN_SUCCESS;
}
case PROCESSOR_CPU_LOAD_INFO:
{
- processor_cpu_load_info_t cpu_load_info;
- timer_t idle_state;
- uint64_t idle_time_snapshot1, idle_time_snapshot2;
- uint64_t idle_time_tstamp1, idle_time_tstamp2;
+ processor_cpu_load_info_t cpu_load_info;
+ timer_t idle_state;
+ uint64_t idle_time_snapshot1, idle_time_snapshot2;
+ uint64_t idle_time_tstamp1, idle_time_tstamp2;
/*
* We capture the accumulated idle time twice over
* data.
*/
- if (*count < PROCESSOR_CPU_LOAD_INFO_COUNT)
- return (KERN_FAILURE);
+ if (*count < PROCESSOR_CPU_LOAD_INFO_COUNT) {
+ return KERN_FAILURE;
+ }
cpu_load_info = (processor_cpu_load_info_t) info;
if (precise_user_kernel_time) {
cpu_load_info->cpu_ticks[CPU_STATE_USER] =
- (uint32_t)(timer_grab(&PROCESSOR_DATA(processor, user_state)) / hz_tick_interval);
+ (uint32_t)(timer_grab(&PROCESSOR_DATA(processor, user_state)) / hz_tick_interval);
cpu_load_info->cpu_ticks[CPU_STATE_SYSTEM] =
- (uint32_t)(timer_grab(&PROCESSOR_DATA(processor, system_state)) / hz_tick_interval);
+ (uint32_t)(timer_grab(&PROCESSOR_DATA(processor, system_state)) / hz_tick_interval);
} else {
uint64_t tval = timer_grab(&PROCESSOR_DATA(processor, user_state)) +
- timer_grab(&PROCESSOR_DATA(processor, system_state));
+ timer_grab(&PROCESSOR_DATA(processor, system_state));
cpu_load_info->cpu_ticks[CPU_STATE_USER] = (uint32_t)(tval / hz_tick_interval);
cpu_load_info->cpu_ticks[CPU_STATE_SYSTEM] = 0;
*/
if (PROCESSOR_DATA(processor, current_state) != idle_state) {
cpu_load_info->cpu_ticks[CPU_STATE_IDLE] =
- (uint32_t)(idle_time_snapshot1 / hz_tick_interval);
+ (uint32_t)(idle_time_snapshot1 / hz_tick_interval);
} else if ((idle_time_snapshot1 != (idle_time_snapshot2 = timer_grab(idle_state))) ||
- (idle_time_tstamp1 != (idle_time_tstamp2 = idle_state->tstamp))){
+ (idle_time_tstamp1 != (idle_time_tstamp2 = idle_state->tstamp))) {
/* Idle timer is being updated concurrently, second stamp is good enough */
cpu_load_info->cpu_ticks[CPU_STATE_IDLE] =
- (uint32_t)(idle_time_snapshot2 / hz_tick_interval);
+ (uint32_t)(idle_time_snapshot2 / hz_tick_interval);
} else {
/*
* Idle timer may be very stale. Fortunately we have established
* that idle_time_snapshot1 and idle_time_tstamp1 are unchanging
*/
idle_time_snapshot1 += mach_absolute_time() - idle_time_tstamp1;
-
+
cpu_load_info->cpu_ticks[CPU_STATE_IDLE] =
- (uint32_t)(idle_time_snapshot1 / hz_tick_interval);
+ (uint32_t)(idle_time_snapshot1 / hz_tick_interval);
}
cpu_load_info->cpu_ticks[CPU_STATE_NICE] = 0;
- *count = PROCESSOR_CPU_LOAD_INFO_COUNT;
- *host = &realhost;
+ *count = PROCESSOR_CPU_LOAD_INFO_COUNT;
+ *host = &realhost;
- return (KERN_SUCCESS);
+ return KERN_SUCCESS;
}
default:
- result = cpu_info(flavor, cpu_id, info, count);
- if (result == KERN_SUCCESS)
- *host = &realhost;
+ result = cpu_info(flavor, cpu_id, info, count);
+ if (result == KERN_SUCCESS) {
+ *host = &realhost;
+ }
- return (result);
+ return result;
}
}
kern_return_t
processor_start(
- processor_t processor)
+ processor_t processor)
{
- processor_set_t pset;
- thread_t thread;
- kern_return_t result;
- spl_t s;
+ processor_set_t pset;
+ thread_t thread;
+ kern_return_t result;
+ spl_t s;
- if (processor == PROCESSOR_NULL || processor->processor_set == PROCESSOR_SET_NULL)
- return (KERN_INVALID_ARGUMENT);
+ if (processor == PROCESSOR_NULL || processor->processor_set == PROCESSOR_SET_NULL) {
+ return KERN_INVALID_ARGUMENT;
+ }
if (processor == master_processor) {
- processor_t prev;
+ processor_t prev;
prev = thread_bind(processor);
thread_block(THREAD_CONTINUE_NULL);
thread_bind(prev);
- return (result);
+ return result;
+ }
+
+ bool scheduler_disable = false;
+
+ if ((processor->processor_primary != processor) && (sched_enable_smt == 0)) {
+ if (cpu_can_exit(processor->cpu_id)) {
+ return KERN_SUCCESS;
+ }
+ /*
+ * This secondary SMT processor must start in order to service interrupts,
+ * so instead it will be disabled at the scheduler level.
+ */
+ scheduler_disable = true;
}
s = splsched();
pset_unlock(pset);
splx(s);
- return (KERN_FAILURE);
+ return KERN_FAILURE;
}
- processor->state = PROCESSOR_START;
+ pset_update_processor_state(pset, processor, PROCESSOR_START);
pset_unlock(pset);
splx(s);
if (result != KERN_SUCCESS) {
s = splsched();
pset_lock(pset);
- processor->state = PROCESSOR_OFF_LINE;
+ pset_update_processor_state(pset, processor, PROCESSOR_OFF_LINE);
pset_unlock(pset);
splx(s);
- return (result);
+ return result;
}
}
* has never been started. Create a dedicated
* start up thread.
*/
- if ( processor->active_thread == THREAD_NULL &&
- processor->next_thread == THREAD_NULL ) {
+ if (processor->active_thread == THREAD_NULL &&
+ processor->next_thread == THREAD_NULL) {
result = kernel_thread_create((thread_continue_t)processor_start_thread, NULL, MAXPRI_KERNEL, &thread);
if (result != KERN_SUCCESS) {
s = splsched();
pset_lock(pset);
- processor->state = PROCESSOR_OFF_LINE;
+ pset_update_processor_state(pset, processor, PROCESSOR_OFF_LINE);
pset_unlock(pset);
splx(s);
- return (result);
+ return result;
}
s = splsched();
thread_deallocate(thread);
}
- if (processor->processor_self == IP_NULL)
+ if (processor->processor_self == IP_NULL) {
ipc_processor_init(processor);
+ }
result = cpu_start(processor->cpu_id);
if (result != KERN_SUCCESS) {
s = splsched();
pset_lock(pset);
- processor->state = PROCESSOR_OFF_LINE;
+ pset_update_processor_state(pset, processor, PROCESSOR_OFF_LINE);
pset_unlock(pset);
splx(s);
- return (result);
+ return result;
+ }
+ if (scheduler_disable) {
+ assert(processor->processor_primary != processor);
+ sched_processor_enable(processor, FALSE);
}
ipc_processor_enable(processor);
- return (KERN_SUCCESS);
+ return KERN_SUCCESS;
}
+
kern_return_t
processor_exit(
- processor_t processor)
+ processor_t processor)
+{
+ if (processor == PROCESSOR_NULL) {
+ return KERN_INVALID_ARGUMENT;
+ }
+
+ return processor_shutdown(processor);
+}
+
+
+kern_return_t
+processor_start_from_user(
+ processor_t processor)
+{
+ kern_return_t ret;
+
+ if (processor == PROCESSOR_NULL) {
+ return KERN_INVALID_ARGUMENT;
+ }
+
+ if (!cpu_can_exit(processor->cpu_id)) {
+ ret = sched_processor_enable(processor, TRUE);
+ } else {
+ ret = processor_start(processor);
+ }
+
+ return ret;
+}
+
+kern_return_t
+processor_exit_from_user(
+ processor_t processor)
{
- if (processor == PROCESSOR_NULL)
- return(KERN_INVALID_ARGUMENT);
+ kern_return_t ret;
+
+ if (processor == PROCESSOR_NULL) {
+ return KERN_INVALID_ARGUMENT;
+ }
+
+ if (!cpu_can_exit(processor->cpu_id)) {
+ ret = sched_processor_enable(processor, FALSE);
+ } else {
+ ret = processor_shutdown(processor);
+ }
+
+ return ret;
+}
+
+kern_return_t
+enable_smt_processors(bool enable)
+{
+ if (machine_info.logical_cpu_max == machine_info.physical_cpu_max) {
+ /* Not an SMT system */
+ return KERN_INVALID_ARGUMENT;
+ }
+
+ int ncpus = machine_info.logical_cpu_max;
+
+ for (int i = 1; i < ncpus; i++) {
+ processor_t processor = processor_array[i];
+
+ if (processor->processor_primary != processor) {
+ if (enable) {
+ processor_start_from_user(processor);
+ } else { /* Disable */
+ processor_exit_from_user(processor);
+ }
+ }
+ }
+
+#define BSD_HOST 1
+ host_basic_info_data_t hinfo;
+ mach_msg_type_number_t count = HOST_BASIC_INFO_COUNT;
+ kern_return_t kret = host_info((host_t)BSD_HOST, HOST_BASIC_INFO, (host_info_t)&hinfo, &count);
+ if (kret != KERN_SUCCESS) {
+ return kret;
+ }
+
+ if (enable && (hinfo.logical_cpu != hinfo.logical_cpu_max)) {
+ return KERN_FAILURE;
+ }
- return(processor_shutdown(processor));
+ if (!enable && (hinfo.logical_cpu != hinfo.physical_cpu)) {
+ return KERN_FAILURE;
+ }
+
+ return KERN_SUCCESS;
}
kern_return_t
processor_control(
- processor_t processor,
- processor_info_t info,
- mach_msg_type_number_t count)
+ processor_t processor,
+ processor_info_t info,
+ mach_msg_type_number_t count)
{
- if (processor == PROCESSOR_NULL)
- return(KERN_INVALID_ARGUMENT);
+ if (processor == PROCESSOR_NULL) {
+ return KERN_INVALID_ARGUMENT;
+ }
- return(cpu_control(processor->cpu_id, info, count));
+ return cpu_control(processor->cpu_id, info, count);
}
-
+
kern_return_t
processor_set_create(
- __unused host_t host,
- __unused processor_set_t *new_set,
- __unused processor_set_t *new_name)
+ __unused host_t host,
+ __unused processor_set_t *new_set,
+ __unused processor_set_t *new_name)
{
- return(KERN_FAILURE);
+ return KERN_FAILURE;
}
kern_return_t
processor_set_destroy(
- __unused processor_set_t pset)
+ __unused processor_set_t pset)
{
- return(KERN_FAILURE);
+ return KERN_FAILURE;
}
kern_return_t
processor_get_assignment(
- processor_t processor,
- processor_set_t *pset)
+ processor_t processor,
+ processor_set_t *pset)
{
int state;
- if (processor == PROCESSOR_NULL)
- return(KERN_INVALID_ARGUMENT);
+ if (processor == PROCESSOR_NULL) {
+ return KERN_INVALID_ARGUMENT;
+ }
state = processor->state;
- if (state == PROCESSOR_SHUTDOWN || state == PROCESSOR_OFF_LINE)
- return(KERN_FAILURE);
+ if (state == PROCESSOR_SHUTDOWN || state == PROCESSOR_OFF_LINE) {
+ return KERN_FAILURE;
+ }
*pset = &pset0;
- return(KERN_SUCCESS);
+ return KERN_SUCCESS;
}
kern_return_t
processor_set_info(
- processor_set_t pset,
- int flavor,
- host_t *host,
- processor_set_info_t info,
- mach_msg_type_number_t *count)
+ processor_set_t pset,
+ int flavor,
+ host_t *host,
+ processor_set_info_t info,
+ mach_msg_type_number_t *count)
{
- if (pset == PROCESSOR_SET_NULL)
- return(KERN_INVALID_ARGUMENT);
+ if (pset == PROCESSOR_SET_NULL) {
+ return KERN_INVALID_ARGUMENT;
+ }
if (flavor == PROCESSOR_SET_BASIC_INFO) {
- processor_set_basic_info_t basic_info;
+ processor_set_basic_info_t basic_info;
- if (*count < PROCESSOR_SET_BASIC_INFO_COUNT)
- return(KERN_FAILURE);
+ if (*count < PROCESSOR_SET_BASIC_INFO_COUNT) {
+ return KERN_FAILURE;
+ }
basic_info = (processor_set_basic_info_t) info;
+#if defined(__x86_64__)
+ basic_info->processor_count = processor_avail_count_user;
+#else
basic_info->processor_count = processor_avail_count;
+#endif
basic_info->default_policy = POLICY_TIMESHARE;
*count = PROCESSOR_SET_BASIC_INFO_COUNT;
*host = &realhost;
- return(KERN_SUCCESS);
- }
- else if (flavor == PROCESSOR_SET_TIMESHARE_DEFAULT) {
- policy_timeshare_base_t ts_base;
+ return KERN_SUCCESS;
+ } else if (flavor == PROCESSOR_SET_TIMESHARE_DEFAULT) {
+ policy_timeshare_base_t ts_base;
- if (*count < POLICY_TIMESHARE_BASE_COUNT)
- return(KERN_FAILURE);
+ if (*count < POLICY_TIMESHARE_BASE_COUNT) {
+ return KERN_FAILURE;
+ }
ts_base = (policy_timeshare_base_t) info;
ts_base->base_priority = BASEPRI_DEFAULT;
*count = POLICY_TIMESHARE_BASE_COUNT;
*host = &realhost;
- return(KERN_SUCCESS);
- }
- else if (flavor == PROCESSOR_SET_FIFO_DEFAULT) {
- policy_fifo_base_t fifo_base;
+ return KERN_SUCCESS;
+ } else if (flavor == PROCESSOR_SET_FIFO_DEFAULT) {
+ policy_fifo_base_t fifo_base;
- if (*count < POLICY_FIFO_BASE_COUNT)
- return(KERN_FAILURE);
+ if (*count < POLICY_FIFO_BASE_COUNT) {
+ return KERN_FAILURE;
+ }
fifo_base = (policy_fifo_base_t) info;
fifo_base->base_priority = BASEPRI_DEFAULT;
*count = POLICY_FIFO_BASE_COUNT;
*host = &realhost;
- return(KERN_SUCCESS);
- }
- else if (flavor == PROCESSOR_SET_RR_DEFAULT) {
- policy_rr_base_t rr_base;
+ return KERN_SUCCESS;
+ } else if (flavor == PROCESSOR_SET_RR_DEFAULT) {
+ policy_rr_base_t rr_base;
- if (*count < POLICY_RR_BASE_COUNT)
- return(KERN_FAILURE);
+ if (*count < POLICY_RR_BASE_COUNT) {
+ return KERN_FAILURE;
+ }
rr_base = (policy_rr_base_t) info;
rr_base->base_priority = BASEPRI_DEFAULT;
*count = POLICY_RR_BASE_COUNT;
*host = &realhost;
- return(KERN_SUCCESS);
- }
- else if (flavor == PROCESSOR_SET_TIMESHARE_LIMITS) {
- policy_timeshare_limit_t ts_limit;
+ return KERN_SUCCESS;
+ } else if (flavor == PROCESSOR_SET_TIMESHARE_LIMITS) {
+ policy_timeshare_limit_t ts_limit;
- if (*count < POLICY_TIMESHARE_LIMIT_COUNT)
- return(KERN_FAILURE);
+ if (*count < POLICY_TIMESHARE_LIMIT_COUNT) {
+ return KERN_FAILURE;
+ }
ts_limit = (policy_timeshare_limit_t) info;
ts_limit->max_priority = MAXPRI_KERNEL;
*count = POLICY_TIMESHARE_LIMIT_COUNT;
*host = &realhost;
- return(KERN_SUCCESS);
- }
- else if (flavor == PROCESSOR_SET_FIFO_LIMITS) {
- policy_fifo_limit_t fifo_limit;
+ return KERN_SUCCESS;
+ } else if (flavor == PROCESSOR_SET_FIFO_LIMITS) {
+ policy_fifo_limit_t fifo_limit;
- if (*count < POLICY_FIFO_LIMIT_COUNT)
- return(KERN_FAILURE);
+ if (*count < POLICY_FIFO_LIMIT_COUNT) {
+ return KERN_FAILURE;
+ }
fifo_limit = (policy_fifo_limit_t) info;
fifo_limit->max_priority = MAXPRI_KERNEL;
*count = POLICY_FIFO_LIMIT_COUNT;
*host = &realhost;
- return(KERN_SUCCESS);
- }
- else if (flavor == PROCESSOR_SET_RR_LIMITS) {
- policy_rr_limit_t rr_limit;
+ return KERN_SUCCESS;
+ } else if (flavor == PROCESSOR_SET_RR_LIMITS) {
+ policy_rr_limit_t rr_limit;
- if (*count < POLICY_RR_LIMIT_COUNT)
- return(KERN_FAILURE);
+ if (*count < POLICY_RR_LIMIT_COUNT) {
+ return KERN_FAILURE;
+ }
rr_limit = (policy_rr_limit_t) info;
rr_limit->max_priority = MAXPRI_KERNEL;
*count = POLICY_RR_LIMIT_COUNT;
*host = &realhost;
- return(KERN_SUCCESS);
- }
- else if (flavor == PROCESSOR_SET_ENABLED_POLICIES) {
- int *enabled;
+ return KERN_SUCCESS;
+ } else if (flavor == PROCESSOR_SET_ENABLED_POLICIES) {
+ int *enabled;
- if (*count < (sizeof(*enabled)/sizeof(int)))
- return(KERN_FAILURE);
+ if (*count < (sizeof(*enabled) / sizeof(int))) {
+ return KERN_FAILURE;
+ }
enabled = (int *) info;
*enabled = POLICY_TIMESHARE | POLICY_RR | POLICY_FIFO;
- *count = sizeof(*enabled)/sizeof(int);
+ *count = sizeof(*enabled) / sizeof(int);
*host = &realhost;
- return(KERN_SUCCESS);
+ return KERN_SUCCESS;
}
*host = HOST_NULL;
- return(KERN_INVALID_ARGUMENT);
+ return KERN_INVALID_ARGUMENT;
}
/*
* processor_set_statistics
*
- * Returns scheduling statistics for a processor set.
+ * Returns scheduling statistics for a processor set.
*/
-kern_return_t
+kern_return_t
processor_set_statistics(
processor_set_t pset,
int flavor,
processor_set_info_t info,
- mach_msg_type_number_t *count)
+ mach_msg_type_number_t *count)
{
- if (pset == PROCESSOR_SET_NULL || pset != &pset0)
- return (KERN_INVALID_PROCESSOR_SET);
+ if (pset == PROCESSOR_SET_NULL || pset != &pset0) {
+ return KERN_INVALID_PROCESSOR_SET;
+ }
if (flavor == PROCESSOR_SET_LOAD_INFO) {
processor_set_load_info_t load_info;
- if (*count < PROCESSOR_SET_LOAD_INFO_COUNT)
- return(KERN_FAILURE);
+ if (*count < PROCESSOR_SET_LOAD_INFO_COUNT) {
+ return KERN_FAILURE;
+ }
load_info = (processor_set_load_info_t) info;
load_info->thread_count = threads_count;
*count = PROCESSOR_SET_LOAD_INFO_COUNT;
- return(KERN_SUCCESS);
+ return KERN_SUCCESS;
}
- return(KERN_INVALID_ARGUMENT);
+ return KERN_INVALID_ARGUMENT;
}
/*
*
* Specify max priority permitted on processor set. This affects
* newly created and assigned threads. Optionally change existing
- * ones.
+ * ones.
*/
kern_return_t
processor_set_max_priority(
- __unused processor_set_t pset,
- __unused int max_priority,
- __unused boolean_t change_threads)
+ __unused processor_set_t pset,
+ __unused int max_priority,
+ __unused boolean_t change_threads)
{
- return (KERN_INVALID_ARGUMENT);
+ return KERN_INVALID_ARGUMENT;
}
/*
kern_return_t
processor_set_policy_enable(
- __unused processor_set_t pset,
- __unused int policy)
+ __unused processor_set_t pset,
+ __unused int policy)
{
- return (KERN_INVALID_ARGUMENT);
+ return KERN_INVALID_ARGUMENT;
}
/*
*/
kern_return_t
processor_set_policy_disable(
- __unused processor_set_t pset,
- __unused int policy,
- __unused boolean_t change_threads)
+ __unused processor_set_t pset,
+ __unused int policy,
+ __unused boolean_t change_threads)
{
- return (KERN_INVALID_ARGUMENT);
+ return KERN_INVALID_ARGUMENT;
}
/*
*/
kern_return_t
processor_set_things(
- processor_set_t pset,
+ processor_set_t pset,
void **thing_list,
mach_msg_type_number_t *count,
int type)
void *addr, *newaddr;
vm_size_t size, size_needed;
- if (pset == PROCESSOR_SET_NULL || pset != &pset0)
- return (KERN_INVALID_ARGUMENT);
+ if (pset == PROCESSOR_SET_NULL || pset != &pset0) {
+ return KERN_INVALID_ARGUMENT;
+ }
task_size = 0;
task_size_needed = 0;
lck_mtx_lock(&tasks_threads_lock);
/* do we have the memory we need? */
- if (type == PSET_THING_THREAD)
+ if (type == PSET_THING_THREAD) {
thread_size_needed = threads_count * sizeof(void *);
+ }
#if !CONFIG_MACF
else
#endif
- task_size_needed = tasks_count * sizeof(void *);
+ task_size_needed = tasks_count * sizeof(void *);
if (task_size_needed <= task_size &&
- thread_size_needed <= thread_size)
+ thread_size_needed <= thread_size) {
break;
+ }
/* unlock and allocate more memory */
lck_mtx_unlock(&tasks_threads_lock);
/* grow task array */
if (task_size_needed > task_size) {
- if (task_size != 0)
+ if (task_size != 0) {
kfree(task_list, task_size);
+ }
assert(task_size_needed > 0);
task_size = task_size_needed;
task_list = (task_t *)kalloc(task_size);
if (task_list == NULL) {
- if (thread_size != 0)
+ if (thread_size != 0) {
kfree(thread_list, thread_size);
- return (KERN_RESOURCE_SHORTAGE);
+ }
+ return KERN_RESOURCE_SHORTAGE;
}
}
/* grow thread array */
if (thread_size_needed > thread_size) {
- if (thread_size != 0)
+ if (thread_size != 0) {
kfree(thread_list, thread_size);
+ }
assert(thread_size_needed > 0);
thread_size = thread_size_needed;
thread_list = (thread_t *)kalloc(thread_size);
if (thread_list == 0) {
- if (task_size != 0)
+ if (task_size != 0) {
kfree(task_list, task_size);
- return (KERN_RESOURCE_SHORTAGE);
+ }
+ return KERN_RESOURCE_SHORTAGE;
}
}
}
/* If we need it, get the thread list */
if (type == PSET_THING_THREAD) {
for (thread = (thread_t)queue_first(&threads);
- !queue_end(&threads, (queue_entry_t)thread);
- thread = (thread_t)queue_next(&thread->threads)) {
+ !queue_end(&threads, (queue_entry_t)thread);
+ thread = (thread_t)queue_next(&thread->threads)) {
#if defined(SECURE_KERNEL)
if (thread->task != kernel_task) {
#endif
- thread_reference_internal(thread);
- thread_list[actual_threads++] = thread;
+ thread_reference_internal(thread);
+ thread_list[actual_threads++] = thread;
#if defined(SECURE_KERNEL)
- }
+ }
#endif
}
}
#if !CONFIG_MACF
- else {
+ else {
#endif
- /* get a list of the tasks */
- for (task = (task_t)queue_first(&tasks);
- !queue_end(&tasks, (queue_entry_t)task);
- task = (task_t)queue_next(&task->tasks)) {
+ /* get a list of the tasks */
+ for (task = (task_t)queue_first(&tasks);
+ !queue_end(&tasks, (queue_entry_t)task);
+ task = (task_t)queue_next(&task->tasks)) {
#if defined(SECURE_KERNEL)
- if (task != kernel_task) {
+ if (task != kernel_task) {
#endif
- task_reference_internal(task);
- task_list[actual_tasks++] = task;
+ task_reference_internal(task);
+ task_list[actual_tasks++] = task;
#if defined(SECURE_KERNEL)
- }
+ }
#endif
- }
-#if !CONFIG_MACF
}
+#if !CONFIG_MACF
+}
#endif
lck_mtx_unlock(&tasks_threads_lock);
task_size_needed = actual_tasks * sizeof(void *);
if (type == PSET_THING_THREAD) {
-
/* for each thread (if any), make sure it's task is in the allowed list */
for (i = used = 0; i < actual_threads; i++) {
boolean_t found_task = FALSE;
break;
}
}
- if (found_task)
+ if (found_task) {
thread_list[used++] = thread_list[i];
- else
+ } else {
thread_deallocate(thread_list[i]);
+ }
}
actual_threads = used;
thread_size_needed = actual_threads * sizeof(void *);
/* done with the task list */
- for (i = 0; i < actual_tasks; i++)
+ for (i = 0; i < actual_tasks; i++) {
task_deallocate(task_list[i]);
+ }
kfree(task_list, task_size);
task_size = 0;
actual_tasks = 0;
if (actual_threads == 0) {
/* no threads available to return */
assert(task_size == 0);
- if (thread_size != 0)
+ if (thread_size != 0) {
kfree(thread_list, thread_size);
+ }
*thing_list = NULL;
*count = 0;
return KERN_SUCCESS;
if (actual_tasks == 0) {
/* no tasks available to return */
assert(thread_size == 0);
- if (task_size != 0)
+ if (task_size != 0) {
kfree(task_list, task_size);
+ }
*thing_list = NULL;
*count = 0;
return KERN_SUCCESS;
- }
+ }
size_needed = actual_tasks * sizeof(void *);
size = task_size;
addr = task_list;
newaddr = kalloc(size_needed);
if (newaddr == 0) {
for (i = 0; i < actual_tasks; i++) {
- if (type == PSET_THING_THREAD)
+ if (type == PSET_THING_THREAD) {
thread_deallocate(thread_list[i]);
- else
+ } else {
task_deallocate(task_list[i]);
+ }
}
- if (size)
+ if (size) {
kfree(addr, size);
- return (KERN_RESOURCE_SHORTAGE);
+ }
+ return KERN_RESOURCE_SHORTAGE;
}
bcopy((void *) addr, (void *) newaddr, size_needed);
*thing_list = (void **)addr;
*count = (unsigned int)size / sizeof(void *);
- return (KERN_SUCCESS);
+ return KERN_SUCCESS;
}
*/
kern_return_t
processor_set_tasks(
- processor_set_t pset,
- task_array_t *task_list,
- mach_msg_type_number_t *count)
+ processor_set_t pset,
+ task_array_t *task_list,
+ mach_msg_type_number_t *count)
{
kern_return_t ret;
mach_msg_type_number_t i;
ret = processor_set_things(pset, (void **)task_list, count, PSET_THING_TASK);
- if (ret != KERN_SUCCESS)
+ if (ret != KERN_SUCCESS) {
return ret;
+ }
/* do the conversion that Mig should handle */
- for (i = 0; i < *count; i++)
+ for (i = 0; i < *count; i++) {
(*task_list)[i] = (task_t)convert_task_to_port((*task_list)[i]);
+ }
return KERN_SUCCESS;
}
#if defined(SECURE_KERNEL)
kern_return_t
processor_set_threads(
- __unused processor_set_t pset,
- __unused thread_array_t *thread_list,
- __unused mach_msg_type_number_t *count)
+ __unused processor_set_t pset,
+ __unused thread_array_t *thread_list,
+ __unused mach_msg_type_number_t *count)
{
- return KERN_FAILURE;
+ return KERN_FAILURE;
}
#elif defined(CONFIG_EMBEDDED)
kern_return_t
processor_set_threads(
- __unused processor_set_t pset,
- __unused thread_array_t *thread_list,
- __unused mach_msg_type_number_t *count)
+ __unused processor_set_t pset,
+ __unused thread_array_t *thread_list,
+ __unused mach_msg_type_number_t *count)
{
- return KERN_NOT_SUPPORTED;
+ return KERN_NOT_SUPPORTED;
}
#else
kern_return_t
processor_set_threads(
- processor_set_t pset,
- thread_array_t *thread_list,
- mach_msg_type_number_t *count)
+ processor_set_t pset,
+ thread_array_t *thread_list,
+ mach_msg_type_number_t *count)
{
kern_return_t ret;
mach_msg_type_number_t i;
ret = processor_set_things(pset, (void **)thread_list, count, PSET_THING_THREAD);
- if (ret != KERN_SUCCESS)
+ if (ret != KERN_SUCCESS) {
return ret;
+ }
/* do the conversion that Mig should handle */
- for (i = 0; i < *count; i++)
+ for (i = 0; i < *count; i++) {
(*thread_list)[i] = (thread_t)convert_thread_to_port((*thread_list)[i]);
+ }
return KERN_SUCCESS;
}
#endif
*/
kern_return_t
processor_set_policy_control(
- __unused processor_set_t pset,
- __unused int flavor,
- __unused processor_set_info_t policy_info,
- __unused mach_msg_type_number_t count,
- __unused boolean_t change)
+ __unused processor_set_t pset,
+ __unused int flavor,
+ __unused processor_set_info_t policy_info,
+ __unused mach_msg_type_number_t count,
+ __unused boolean_t change)
{
- return (KERN_INVALID_ARGUMENT);
+ return KERN_INVALID_ARGUMENT;
}
#undef pset_deallocate
void pset_deallocate(processor_set_t pset);
void
pset_deallocate(
-__unused processor_set_t pset)
+ __unused processor_set_t pset)
{
return;
}
void pset_reference(processor_set_t pset);
void
pset_reference(
-__unused processor_set_t pset)
+ __unused processor_set_t pset)
{
return;
}
projects / apple / xnu.git / blobdiff