#include <mach/mach_types.h>
#include <mach/boolean.h>
#include <mach/host_info.h>
#include <mach/host_special_ports.h>
#include <mach/kern_return.h>
#include <mach/machine.h>
#include <mach/port.h>
#include <mach/processor_info.h>
#include <mach/vm_param.h>
#include <mach/processor.h>
#include <mach/mach_host_server.h>
#include <mach/host_priv_server.h>
#include <mach/vm_map.h>
#include <mach/task_info.h>
#include <kern/kern_types.h>
#include <kern/assert.h>
#include <kern/kalloc.h>
#include <kern/host.h>
#include <kern/host_statistics.h>
#include <kern/ipc_host.h>
#include <kern/misc_protos.h>
#include <kern/sched.h>
#include <kern/processor.h>
#include <vm/vm_map.h>
#include <vm/vm_purgeable_internal.h>
#include <vm/vm_pageout.h>
#if CONFIG_ATM
#include <atm/atm_internal.h>
#endif
#if CONFIG_MACF
#include <security/mac_mach_internal.h>
#endif
host_data_t realhost;
vm_extmod_statistics_data_t host_extmod_statistics;
kern_return_t
host_processors(host_priv_t host_priv, processor_array_t * out_array, mach_msg_type_number_t * countp)
{
register processor_t processor, *tp;
void * addr;
unsigned int count, i;
if (host_priv == HOST_PRIV_NULL)
return (KERN_INVALID_ARGUMENT);
assert(host_priv == &realhost);
count = processor_count;
assert(count != 0);
addr = kalloc((vm_size_t)(count * sizeof(mach_port_t)));
if (addr == 0)
return (KERN_RESOURCE_SHORTAGE);
tp = (processor_t *)addr;
*tp++ = processor = processor_list;
if (count > 1) {
simple_lock(&processor_list_lock);
for (i = 1; i < count; i++)
*tp++ = processor = processor->processor_list;
simple_unlock(&processor_list_lock);
}
*countp = count;
*out_array = (processor_array_t)addr;
tp = (processor_t *)addr;
for (i = 0; i < count; i++)
((mach_port_t *)tp)[i] = (mach_port_t)convert_processor_to_port(tp[i]);
return (KERN_SUCCESS);
}
kern_return_t
host_info(host_t host, host_flavor_t flavor, host_info_t info, mach_msg_type_number_t * count)
{
if (host == HOST_NULL)
return (KERN_INVALID_ARGUMENT);
switch (flavor) {
case HOST_BASIC_INFO: {
register host_basic_info_t basic_info;
register int master_id;
if (*count < HOST_BASIC_INFO_OLD_COUNT)
return (KERN_FAILURE);
basic_info = (host_basic_info_t)info;
basic_info->memory_size = machine_info.memory_size;
basic_info->max_cpus = machine_info.max_cpus;
basic_info->avail_cpus = processor_avail_count;
master_id = master_processor->cpu_id;
basic_info->cpu_type = slot_type(master_id);
basic_info->cpu_subtype = slot_subtype(master_id);
if (*count >= HOST_BASIC_INFO_COUNT) {
basic_info->cpu_threadtype = slot_threadtype(master_id);
basic_info->physical_cpu = machine_info.physical_cpu;
basic_info->physical_cpu_max = machine_info.physical_cpu_max;
basic_info->logical_cpu = machine_info.logical_cpu;
basic_info->logical_cpu_max = machine_info.logical_cpu_max;
basic_info->max_mem = machine_info.max_mem;
*count = HOST_BASIC_INFO_COUNT;
} else {
*count = HOST_BASIC_INFO_OLD_COUNT;
}
return (KERN_SUCCESS);
}
case HOST_SCHED_INFO: {
register host_sched_info_t sched_info;
uint32_t quantum_time;
uint64_t quantum_ns;
if (*count < HOST_SCHED_INFO_COUNT)
return (KERN_FAILURE);
sched_info = (host_sched_info_t)info;
quantum_time = SCHED(initial_quantum_size)(THREAD_NULL);
absolutetime_to_nanoseconds(quantum_time, &quantum_ns);
sched_info->min_timeout = sched_info->min_quantum = (uint32_t)(quantum_ns / 1000 / 1000);
*count = HOST_SCHED_INFO_COUNT;
return (KERN_SUCCESS);
}
case HOST_RESOURCE_SIZES: {
if (*count < HOST_RESOURCE_SIZES_COUNT)
return (KERN_FAILURE);
return (KERN_INVALID_ARGUMENT);
}
case HOST_PRIORITY_INFO: {
register host_priority_info_t priority_info;
if (*count < HOST_PRIORITY_INFO_COUNT)
return (KERN_FAILURE);
priority_info = (host_priority_info_t)info;
priority_info->kernel_priority = MINPRI_KERNEL;
priority_info->system_priority = MINPRI_KERNEL;
priority_info->server_priority = MINPRI_RESERVED;
priority_info->user_priority = BASEPRI_DEFAULT;
priority_info->depress_priority = DEPRESSPRI;
priority_info->idle_priority = IDLEPRI;
priority_info->minimum_priority = MINPRI_USER;
priority_info->maximum_priority = MAXPRI_RESERVED;
*count = HOST_PRIORITY_INFO_COUNT;
return (KERN_SUCCESS);
}
case HOST_MACH_MSG_TRAP:
case HOST_SEMAPHORE_TRAPS: {
*count = 0;
return (KERN_SUCCESS);
}
case HOST_VM_PURGABLE: {
if (*count < HOST_VM_PURGABLE_COUNT)
return (KERN_FAILURE);
vm_purgeable_stats((vm_purgeable_info_t)info, NULL);
*count = HOST_VM_PURGABLE_COUNT;
return (KERN_SUCCESS);
}
case HOST_DEBUG_INFO_INTERNAL: {
#if DEVELOPMENT || DEBUG
if (*count < HOST_DEBUG_INFO_INTERNAL_COUNT)
return (KERN_FAILURE);
host_debug_info_internal_t debug_info = (host_debug_info_internal_t)info;
bzero(debug_info, sizeof(host_debug_info_internal_data_t));
*count = HOST_DEBUG_INFO_INTERNAL_COUNT;
#if CONFIG_COALITIONS
debug_info->config_coalitions = 1;
#endif
#if CONFIG_BANK
debug_info->config_bank = 1;
#endif
#if CONFIG_ATM
debug_info->config_atm = 1;
#endif
#if CONFIG_CSR
debug_info->config_csr = 1;
#endif
return (KERN_SUCCESS);
#else
return (KERN_NOT_SUPPORTED);
#endif
}
default: return (KERN_INVALID_ARGUMENT);
}
}
kern_return_t
host_statistics(host_t host, host_flavor_t flavor, host_info_t info, mach_msg_type_number_t * count)
{
uint32_t i;
if (host == HOST_NULL)
return (KERN_INVALID_HOST);
switch (flavor) {
case HOST_LOAD_INFO: {
host_load_info_t load_info;
if (*count < HOST_LOAD_INFO_COUNT)
return (KERN_FAILURE);
load_info = (host_load_info_t)info;
bcopy((char *)avenrun, (char *)load_info->avenrun, sizeof avenrun);
bcopy((char *)mach_factor, (char *)load_info->mach_factor, sizeof mach_factor);
*count = HOST_LOAD_INFO_COUNT;
return (KERN_SUCCESS);
}
case HOST_VM_INFO: {
register processor_t processor;
register vm_statistics64_t stat;
vm_statistics64_data_t host_vm_stat;
vm_statistics_t stat32;
mach_msg_type_number_t original_count;
if (*count < HOST_VM_INFO_REV0_COUNT)
return (KERN_FAILURE);
processor = processor_list;
stat = &PROCESSOR_DATA(processor, vm_stat);
host_vm_stat = *stat;
if (processor_count > 1) {
simple_lock(&processor_list_lock);
while ((processor = processor->processor_list) != NULL) {
stat = &PROCESSOR_DATA(processor, vm_stat);
host_vm_stat.zero_fill_count += stat->zero_fill_count;
host_vm_stat.reactivations += stat->reactivations;
host_vm_stat.pageins += stat->pageins;
host_vm_stat.pageouts += stat->pageouts;
host_vm_stat.faults += stat->faults;
host_vm_stat.cow_faults += stat->cow_faults;
host_vm_stat.lookups += stat->lookups;
host_vm_stat.hits += stat->hits;
}
simple_unlock(&processor_list_lock);
}
stat32 = (vm_statistics_t)info;
stat32->free_count = VM_STATISTICS_TRUNCATE_TO_32_BIT(vm_page_free_count + vm_page_speculative_count);
stat32->active_count = VM_STATISTICS_TRUNCATE_TO_32_BIT(vm_page_active_count);
if (vm_page_local_q) {
for (i = 0; i < vm_page_local_q_count; i++) {
struct vpl * lq;
lq = &vm_page_local_q[i].vpl_un.vpl;
stat32->active_count += VM_STATISTICS_TRUNCATE_TO_32_BIT(lq->vpl_count);
}
}
stat32->inactive_count = VM_STATISTICS_TRUNCATE_TO_32_BIT(vm_page_inactive_count);
stat32->wire_count = VM_STATISTICS_TRUNCATE_TO_32_BIT(vm_page_wire_count + vm_page_throttled_count + vm_lopage_free_count);
stat32->zero_fill_count = VM_STATISTICS_TRUNCATE_TO_32_BIT(host_vm_stat.zero_fill_count);
stat32->reactivations = VM_STATISTICS_TRUNCATE_TO_32_BIT(host_vm_stat.reactivations);
stat32->pageins = VM_STATISTICS_TRUNCATE_TO_32_BIT(host_vm_stat.pageins);
stat32->pageouts = VM_STATISTICS_TRUNCATE_TO_32_BIT(host_vm_stat.pageouts);
stat32->faults = VM_STATISTICS_TRUNCATE_TO_32_BIT(host_vm_stat.faults);
stat32->cow_faults = VM_STATISTICS_TRUNCATE_TO_32_BIT(host_vm_stat.cow_faults);
stat32->lookups = VM_STATISTICS_TRUNCATE_TO_32_BIT(host_vm_stat.lookups);
stat32->hits = VM_STATISTICS_TRUNCATE_TO_32_BIT(host_vm_stat.hits);
original_count = *count;
*count = HOST_VM_INFO_REV0_COUNT;
if (original_count >= HOST_VM_INFO_REV1_COUNT) {
stat32->purgeable_count = VM_STATISTICS_TRUNCATE_TO_32_BIT(vm_page_purgeable_count);
stat32->purges = VM_STATISTICS_TRUNCATE_TO_32_BIT(vm_page_purged_count);
*count = HOST_VM_INFO_REV1_COUNT;
}
if (original_count >= HOST_VM_INFO_REV2_COUNT) {
stat32->speculative_count = VM_STATISTICS_TRUNCATE_TO_32_BIT(vm_page_speculative_count);
*count = HOST_VM_INFO_REV2_COUNT;
}
return (KERN_SUCCESS);
}
case HOST_CPU_LOAD_INFO: {
register processor_t processor;
host_cpu_load_info_t cpu_load_info;
if (*count < HOST_CPU_LOAD_INFO_COUNT)
return (KERN_FAILURE);
#define GET_TICKS_VALUE(state, ticks) \
MACRO_BEGIN cpu_load_info->cpu_ticks[(state)] += (uint32_t)(ticks / hz_tick_interval); \
MACRO_END
#define GET_TICKS_VALUE_FROM_TIMER(processor, state, timer) \
MACRO_BEGIN GET_TICKS_VALUE(state, timer_grab(&PROCESSOR_DATA(processor, timer))); \
MACRO_END
cpu_load_info = (host_cpu_load_info_t)info;
cpu_load_info->cpu_ticks[CPU_STATE_USER] = 0;
cpu_load_info->cpu_ticks[CPU_STATE_SYSTEM] = 0;
cpu_load_info->cpu_ticks[CPU_STATE_IDLE] = 0;
cpu_load_info->cpu_ticks[CPU_STATE_NICE] = 0;
simple_lock(&processor_list_lock);
for (processor = processor_list; processor != NULL; processor = processor->processor_list) {
timer_t idle_state;
uint64_t idle_time_snapshot1, idle_time_snapshot2;
uint64_t idle_time_tstamp1, idle_time_tstamp2;
GET_TICKS_VALUE_FROM_TIMER(processor, CPU_STATE_USER, user_state);
if (precise_user_kernel_time) {
GET_TICKS_VALUE_FROM_TIMER(processor, CPU_STATE_SYSTEM, system_state);
} else {
GET_TICKS_VALUE_FROM_TIMER(processor, CPU_STATE_USER, system_state);
}
idle_state = &PROCESSOR_DATA(processor, idle_state);
idle_time_snapshot1 = timer_grab(idle_state);
idle_time_tstamp1 = idle_state->tstamp;
if (PROCESSOR_DATA(processor, current_state) != idle_state) {
GET_TICKS_VALUE_FROM_TIMER(processor, CPU_STATE_IDLE, idle_state);
} else if ((idle_time_snapshot1 != (idle_time_snapshot2 = timer_grab(idle_state))) ||
(idle_time_tstamp1 != (idle_time_tstamp2 = idle_state->tstamp))) {
GET_TICKS_VALUE(CPU_STATE_IDLE, idle_time_snapshot2);
} else {
idle_time_snapshot1 += mach_absolute_time() - idle_time_tstamp1;
GET_TICKS_VALUE(CPU_STATE_IDLE, idle_time_snapshot1);
}
}
simple_unlock(&processor_list_lock);
*count = HOST_CPU_LOAD_INFO_COUNT;
return (KERN_SUCCESS);
}
case HOST_EXPIRED_TASK_INFO: {
if (*count < TASK_POWER_INFO_COUNT) {
return (KERN_FAILURE);
}
task_power_info_t tinfo = (task_power_info_t)info;
tinfo->task_interrupt_wakeups = dead_task_statistics.task_interrupt_wakeups;
tinfo->task_platform_idle_wakeups = dead_task_statistics.task_platform_idle_wakeups;
tinfo->task_timer_wakeups_bin_1 = dead_task_statistics.task_timer_wakeups_bin_1;
tinfo->task_timer_wakeups_bin_2 = dead_task_statistics.task_timer_wakeups_bin_2;
tinfo->total_user = dead_task_statistics.total_user_time;
tinfo->total_system = dead_task_statistics.total_system_time;
return (KERN_SUCCESS);
}
default: return (KERN_INVALID_ARGUMENT);
}
}
extern uint32_t c_segment_pages_compressed;
kern_return_t
host_statistics64(host_t host, host_flavor_t flavor, host_info64_t info, mach_msg_type_number_t * count)
{
uint32_t i;
if (host == HOST_NULL)
return (KERN_INVALID_HOST);
switch (flavor) {
case HOST_VM_INFO64:
{
register processor_t processor;
register vm_statistics64_t stat;
vm_statistics64_data_t host_vm_stat;
mach_msg_type_number_t original_count;
unsigned int local_q_internal_count;
unsigned int local_q_external_count;
if (*count < HOST_VM_INFO64_REV0_COUNT)
return (KERN_FAILURE);
processor = processor_list;
stat = &PROCESSOR_DATA(processor, vm_stat);
host_vm_stat = *stat;
if (processor_count > 1) {
simple_lock(&processor_list_lock);
while ((processor = processor->processor_list) != NULL) {
stat = &PROCESSOR_DATA(processor, vm_stat);
host_vm_stat.zero_fill_count += stat->zero_fill_count;
host_vm_stat.reactivations += stat->reactivations;
host_vm_stat.pageins += stat->pageins;
host_vm_stat.pageouts += stat->pageouts;
host_vm_stat.faults += stat->faults;
host_vm_stat.cow_faults += stat->cow_faults;
host_vm_stat.lookups += stat->lookups;
host_vm_stat.hits += stat->hits;
host_vm_stat.compressions += stat->compressions;
host_vm_stat.decompressions += stat->decompressions;
host_vm_stat.swapins += stat->swapins;
host_vm_stat.swapouts += stat->swapouts;
}
simple_unlock(&processor_list_lock);
}
stat = (vm_statistics64_t)info;
stat->free_count = vm_page_free_count + vm_page_speculative_count;
stat->active_count = vm_page_active_count;
local_q_internal_count = 0;
local_q_external_count = 0;
if (vm_page_local_q) {
for (i = 0; i < vm_page_local_q_count; i++) {
struct vpl * lq;
lq = &vm_page_local_q[i].vpl_un.vpl;
stat->active_count += lq->vpl_count;
local_q_internal_count += lq->vpl_internal_count;
local_q_external_count += lq->vpl_external_count;
}
}
stat->inactive_count = vm_page_inactive_count;
stat->wire_count = vm_page_wire_count + vm_page_throttled_count + vm_lopage_free_count;
stat->zero_fill_count = host_vm_stat.zero_fill_count;
stat->reactivations = host_vm_stat.reactivations;
stat->pageins = host_vm_stat.pageins;
stat->pageouts = host_vm_stat.pageouts;
stat->faults = host_vm_stat.faults;
stat->cow_faults = host_vm_stat.cow_faults;
stat->lookups = host_vm_stat.lookups;
stat->hits = host_vm_stat.hits;
stat->purgeable_count = vm_page_purgeable_count;
stat->purges = vm_page_purged_count;
stat->speculative_count = vm_page_speculative_count;
original_count = *count;
*count = HOST_VM_INFO64_REV0_COUNT;
if (original_count >= HOST_VM_INFO64_REV1_COUNT) {
stat->throttled_count = vm_page_throttled_count;
stat->compressor_page_count = VM_PAGE_COMPRESSOR_COUNT;
stat->compressions = host_vm_stat.compressions;
stat->decompressions = host_vm_stat.decompressions;
stat->swapins = host_vm_stat.swapins;
stat->swapouts = host_vm_stat.swapouts;
stat->external_page_count = (vm_page_pageable_external_count + local_q_external_count);
stat->internal_page_count = (vm_page_pageable_internal_count + local_q_internal_count);
stat->total_uncompressed_pages_in_compressor = c_segment_pages_compressed;
*count = HOST_VM_INFO64_REV1_COUNT;
}
return (KERN_SUCCESS);
}
case HOST_EXTMOD_INFO64:
{
vm_extmod_statistics_t out_extmod_statistics;
if (*count < HOST_EXTMOD_INFO64_COUNT)
return (KERN_FAILURE);
out_extmod_statistics = (vm_extmod_statistics_t)info;
*out_extmod_statistics = host_extmod_statistics;
*count = HOST_EXTMOD_INFO64_COUNT;
return (KERN_SUCCESS);
}
default:
return (host_statistics(host, flavor, (host_info_t)info, count));
}
}
kern_return_t
host_priv_statistics(host_priv_t host_priv, host_flavor_t flavor, host_info_t info, mach_msg_type_number_t * count)
{
return (host_statistics((host_t)host_priv, flavor, info, count));
}
kern_return_t
set_sched_stats_active(boolean_t active)
{
sched_stats_active = active;
return (KERN_SUCCESS);
}
kern_return_t
get_sched_statistics(struct _processor_statistics_np * out, uint32_t * count)
{
processor_t processor;
if (!sched_stats_active) {
return (KERN_FAILURE);
}
simple_lock(&processor_list_lock);
if (*count < (processor_count + 1) * sizeof(struct _processor_statistics_np)) {
simple_unlock(&processor_list_lock);
return (KERN_FAILURE);
}
processor = processor_list;
while (processor) {
struct processor_sched_statistics * stats = &processor->processor_data.sched_stats;
out->ps_cpuid = processor->cpu_id;
out->ps_csw_count = stats->csw_count;
out->ps_preempt_count = stats->preempt_count;
out->ps_preempted_rt_count = stats->preempted_rt_count;
out->ps_preempted_by_rt_count = stats->preempted_by_rt_count;
out->ps_rt_sched_count = stats->rt_sched_count;
out->ps_interrupt_count = stats->interrupt_count;
out->ps_ipi_count = stats->ipi_count;
out->ps_timer_pop_count = stats->timer_pop_count;
out->ps_runq_count_sum = SCHED(processor_runq_stats_count_sum)(processor);
out->ps_idle_transitions = stats->idle_transitions;
out->ps_quantum_timer_expirations = stats->quantum_timer_expirations;
out++;
processor = processor->processor_list;
}
*count = (uint32_t)(processor_count * sizeof(struct _processor_statistics_np));
simple_unlock(&processor_list_lock);
bzero(out, sizeof(*out));
out->ps_cpuid = (-1);
out->ps_runq_count_sum = rt_runq.runq_stats.count_sum;
out++;
*count += (uint32_t)sizeof(struct _processor_statistics_np);
return (KERN_SUCCESS);
}
kern_return_t
host_page_size(host_t host, vm_size_t * out_page_size)
{
if (host == HOST_NULL)
return (KERN_INVALID_ARGUMENT);
*out_page_size = PAGE_SIZE;
return (KERN_SUCCESS);
}
extern char version[];
kern_return_t
host_kernel_version(host_t host, kernel_version_t out_version)
{
if (host == HOST_NULL)
return (KERN_INVALID_ARGUMENT);
(void)strncpy(out_version, version, sizeof(kernel_version_t));
return (KERN_SUCCESS);
}
kern_return_t
host_processor_sets(host_priv_t host_priv, processor_set_name_array_t * pset_list, mach_msg_type_number_t * count)
{
void * addr;
if (host_priv == HOST_PRIV_NULL)
return (KERN_INVALID_ARGUMENT);
addr = kalloc((vm_size_t)sizeof(mach_port_t));
if (addr == 0)
return (KERN_RESOURCE_SHORTAGE);
*((ipc_port_t *)addr) = convert_pset_name_to_port(&pset0);
*pset_list = (processor_set_array_t)addr;
*count = 1;
return (KERN_SUCCESS);
}
kern_return_t
host_processor_set_priv(host_priv_t host_priv, processor_set_t pset_name, processor_set_t * pset)
{
if (host_priv == HOST_PRIV_NULL || pset_name == PROCESSOR_SET_NULL) {
*pset = PROCESSOR_SET_NULL;
return (KERN_INVALID_ARGUMENT);
}
*pset = pset_name;
return (KERN_SUCCESS);
}
kern_return_t
host_processor_info(host_t host,
processor_flavor_t flavor,
natural_t * out_pcount,
processor_info_array_t * out_array,
mach_msg_type_number_t * out_array_count)
{
kern_return_t result;
processor_t processor;
host_t thost;
processor_info_t info;
unsigned int icount, tcount;
unsigned int pcount, i;
vm_offset_t addr;
vm_size_t size, needed;
vm_map_copy_t copy;
if (host == HOST_NULL)
return (KERN_INVALID_ARGUMENT);
result = processor_info_count(flavor, &icount);
if (result != KERN_SUCCESS)
return (result);
pcount = processor_count;
assert(pcount != 0);
needed = pcount * icount * sizeof(natural_t);
size = vm_map_round_page(needed, VM_MAP_PAGE_MASK(ipc_kernel_map));
result = kmem_alloc(ipc_kernel_map, &addr, size, VM_KERN_MEMORY_IPC);
if (result != KERN_SUCCESS)
return (KERN_RESOURCE_SHORTAGE);
info = (processor_info_t)addr;
processor = processor_list;
tcount = icount;
result = processor_info(processor, flavor, &thost, info, &tcount);
if (result != KERN_SUCCESS) {
kmem_free(ipc_kernel_map, addr, size);
return (result);
}
if (pcount > 1) {
for (i = 1; i < pcount; i++) {
simple_lock(&processor_list_lock);
processor = processor->processor_list;
simple_unlock(&processor_list_lock);
info += icount;
tcount = icount;
result = processor_info(processor, flavor, &thost, info, &tcount);
if (result != KERN_SUCCESS) {
kmem_free(ipc_kernel_map, addr, size);
return (result);
}
}
}
if (size != needed)
bzero((char *)addr + needed, size - needed);
result = vm_map_unwire(ipc_kernel_map, vm_map_trunc_page(addr, VM_MAP_PAGE_MASK(ipc_kernel_map)),
vm_map_round_page(addr + size, VM_MAP_PAGE_MASK(ipc_kernel_map)), FALSE);
assert(result == KERN_SUCCESS);
result = vm_map_copyin(ipc_kernel_map, (vm_map_address_t)addr, (vm_map_size_t)needed, TRUE, ©);
assert(result == KERN_SUCCESS);
*out_pcount = pcount;
*out_array = (processor_info_array_t)copy;
*out_array_count = pcount * icount;
return (KERN_SUCCESS);
}
kern_return_t
kernel_set_special_port(host_priv_t host_priv, int id, ipc_port_t port)
{
ipc_port_t old_port;
host_lock(host_priv);
old_port = host_priv->special[id];
host_priv->special[id] = port;
host_unlock(host_priv);
if (IP_VALID(old_port))
ipc_port_release_send(old_port);
return (KERN_SUCCESS);
}
kern_return_t
host_set_special_port(host_priv_t host_priv, int id, ipc_port_t port)
{
if (host_priv == HOST_PRIV_NULL || id <= HOST_MAX_SPECIAL_KERNEL_PORT || id > HOST_MAX_SPECIAL_PORT)
return (KERN_INVALID_ARGUMENT);
#if CONFIG_MACF
if (mac_task_check_set_host_special_port(current_task(), id, port) != 0)
return (KERN_NO_ACCESS);
#endif
return (kernel_set_special_port(host_priv, id, port));
}
kern_return_t
host_get_special_port(host_priv_t host_priv, __unused int node, int id, ipc_port_t * portp)
{
ipc_port_t port;
if (host_priv == HOST_PRIV_NULL || id == HOST_SECURITY_PORT || id > HOST_MAX_SPECIAL_PORT || id < 0)
return (KERN_INVALID_ARGUMENT);
host_lock(host_priv);
port = realhost.special[id];
*portp = ipc_port_copy_send(port);
host_unlock(host_priv);
return (KERN_SUCCESS);
}
kern_return_t
host_get_io_master(host_t host, io_master_t * io_masterp)
{
if (host == HOST_NULL)
return (KERN_INVALID_ARGUMENT);
return (host_get_io_master_port(host_priv_self(), io_masterp));
}
host_t
host_self(void)
{
return (&realhost);
}
host_priv_t
host_priv_self(void)
{
return (&realhost);
}
host_security_t
host_security_self(void)
{
return (&realhost);
}
kern_return_t
host_set_atm_diagnostic_flag(host_priv_t host_priv, uint32_t diagnostic_flag)
{
if (host_priv == HOST_PRIV_NULL)
return (KERN_INVALID_ARGUMENT);
assert(host_priv == &realhost);
#if CONFIG_ATM
return (atm_set_diagnostic_config(diagnostic_flag));
#else
(void)diagnostic_flag;
return (KERN_NOT_SUPPORTED);
#endif
}