hdkv/yuzu
1
Fork 0
Code Issues Pull Requests Releases 1 Activity

early-access version 1355

Browse Source
This commit is contained in:
pineappleEA
2021-01-22 01:15:25 +01:00
parent 7dcb3821c6
commit ccc73bbbbf
70 changed files with 994 additions and 804 deletions
Download Patch File Download Diff File Expand all files Collapse all files

255
src/core/hle/kernel/k_scheduler.cpp
View File

@@ -17,25 +17,30 @@
#include "core/cpu_manager.h"
#include "core/hle/kernel/k_scheduler.h"
#include "core/hle/kernel/k_scoped_scheduler_lock_and_sleep.h"
#include "core/hle/kernel/k_thread.h"
#include "core/hle/kernel/kernel.h"
#include "core/hle/kernel/physical_core.h"
#include "core/hle/kernel/process.h"
#include "core/hle/kernel/thread.h"
#include "core/hle/kernel/time_manager.h"
namespace Kernel {
static void IncrementScheduledCount(Kernel::Thread* thread) {
static void IncrementScheduledCount(Kernel::KThread* thread) {
if (auto process = thread->GetOwnerProcess(); process) {
process->IncrementScheduledCount();
}
}
void KScheduler::RescheduleCores(KernelCore& kernel, u64 cores_pending_reschedule,
Core::EmuThreadHandle global_thread) {
const u32 current_core = global_thread.host_handle;
bool must_context_switch = global_thread.guest_handle != InvalidHandle &&
(current_core < Core::Hardware::NUM_CPU_CORES);
void KScheduler::RescheduleCores(KernelCore& kernel, u64 cores_pending_reschedule) {
auto scheduler = kernel.CurrentScheduler();
u32 current_core{0xF};
bool must_context_switch{};
if (scheduler) {
current_core = scheduler->core_id;
// TODO(bunnei): Should be set to true when we deprecate single core
must_context_switch = !kernel.IsPhantomModeForSingleCore();
}
while (cores_pending_reschedule != 0) {
const auto core = static_cast<u32>(std::countr_zero(cores_pending_reschedule));
@@ -56,28 +61,27 @@ void KScheduler::RescheduleCores(KernelCore& kernel, u64 cores_pending_reschedul
}
}
u64 KScheduler::UpdateHighestPriorityThread(Thread* highest_thread) {
u64 KScheduler::UpdateHighestPriorityThread(KThread* highest_thread) {
std::scoped_lock lock{guard};
if (Thread* prev_highest_thread = this->state.highest_priority_thread;
if (KThread* prev_highest_thread = state.highest_priority_thread;
prev_highest_thread != highest_thread) {
if (prev_highest_thread != nullptr) {
IncrementScheduledCount(prev_highest_thread);
prev_highest_thread->SetLastScheduledTick(system.CoreTiming().GetCPUTicks());
}
if (this->state.should_count_idle) {
if (state.should_count_idle) {
if (highest_thread != nullptr) {
// if (Process* process = highest_thread->GetOwnerProcess(); process != nullptr) {
// process->SetRunningThread(this->core_id, highest_thread,
// this->state.idle_count);
//}
if (Process* process = highest_thread->GetOwnerProcess(); process != nullptr) {
process->SetRunningThread(core_id, highest_thread, state.idle_count);
}
} else {
this->state.idle_count++;
state.idle_count++;
}
}
this->state.highest_priority_thread = highest_thread;
this->state.needs_scheduling = true;
return (1ULL << this->core_id);
state.highest_priority_thread = highest_thread;
state.needs_scheduling.store(true);
return (1ULL << core_id);
} else {
return 0;
}
@@ -90,16 +94,29 @@ u64 KScheduler::UpdateHighestPriorityThreadsImpl(KernelCore& kernel) {
ClearSchedulerUpdateNeeded(kernel);
u64 cores_needing_scheduling = 0, idle_cores = 0;
Thread* top_threads[Core::Hardware::NUM_CPU_CORES];
KThread* top_threads[Core::Hardware::NUM_CPU_CORES];
auto& priority_queue = GetPriorityQueue(kernel);
/// We want to go over all cores, finding the highest priority thread and determining if
/// scheduling is needed for that core.
for (size_t core_id = 0; core_id < Core::Hardware::NUM_CPU_CORES; core_id++) {
Thread* top_thread = priority_queue.GetScheduledFront(static_cast<s32>(core_id));
KThread* top_thread = priority_queue.GetScheduledFront(static_cast<s32>(core_id));
if (top_thread != nullptr) {
// If the thread has no waiters, we need to check if the process has a thread pinned.
// TODO(bunnei): Implement thread pinning
if (top_thread->GetNumKernelWaiters() == 0) {
if (Process* parent = top_thread->GetOwnerProcess(); parent != nullptr) {
if (KThread* pinned = parent->GetPinnedThread(static_cast<s32>(core_id));
pinned != nullptr && pinned != top_thread) {
// We prefer our parent's pinned thread if possible. However, we also don't
// want to schedule un-runnable threads.
if (pinned->GetRawState() == ThreadState::Runnable) {
top_thread = pinned;
} else {
top_thread = nullptr;
}
}
}
}
} else {
idle_cores |= (1ULL << core_id);
}
@@ -112,7 +129,7 @@ u64 KScheduler::UpdateHighestPriorityThreadsImpl(KernelCore& kernel) {
// Idle cores are bad. We're going to try to migrate threads to each idle core in turn.
while (idle_cores != 0) {
const auto core_id = static_cast<u32>(std::countr_zero(idle_cores));
if (Thread* suggested = priority_queue.GetSuggestedFront(core_id); suggested != nullptr) {
if (KThread* suggested = priority_queue.GetSuggestedFront(core_id); suggested != nullptr) {
s32 migration_candidates[Core::Hardware::NUM_CPU_CORES];
size_t num_candidates = 0;
@@ -120,7 +137,7 @@ u64 KScheduler::UpdateHighestPriorityThreadsImpl(KernelCore& kernel) {
while (suggested != nullptr) {
// Check if the suggested thread is the top thread on its core.
const s32 suggested_core = suggested->GetActiveCore();
if (Thread* top_thread =
if (KThread* top_thread =
(suggested_core >= 0) ? top_threads[suggested_core] : nullptr;
top_thread != suggested) {
// Make sure we're not dealing with threads too high priority for migration.
@@ -152,7 +169,7 @@ u64 KScheduler::UpdateHighestPriorityThreadsImpl(KernelCore& kernel) {
// Check if there's some other thread that can run on the candidate core.
const s32 candidate_core = migration_candidates[i];
suggested = top_threads[candidate_core];
if (Thread* next_on_candidate_core =
if (KThread* next_on_candidate_core =
priority_queue.GetScheduledNext(candidate_core, suggested);
next_on_candidate_core != nullptr) {
// The candidate core can run some other thread! We'll migrate its current
@@ -182,7 +199,20 @@ u64 KScheduler::UpdateHighestPriorityThreadsImpl(KernelCore& kernel) {
return cores_needing_scheduling;
}
void KScheduler::OnThreadStateChanged(KernelCore& kernel, Thread* thread, ThreadState old_state) {
void KScheduler::ClearPreviousThread(KernelCore& kernel, KThread* thread) {
ASSERT(kernel.GlobalSchedulerContext().IsLocked());
for (size_t i = 0; i < Core::Hardware::NUM_CPU_CORES; ++i) {
// Get an atomic reference to the core scheduler's previous thread.
std::atomic_ref<KThread*> prev_thread(kernel.Scheduler(static_cast<s32>(i)).prev_thread);
static_assert(std::atomic_ref<KThread*>::is_always_lock_free);
// Atomically clear the previous thread if it's our target.
KThread* compare = thread;
prev_thread.compare_exchange_strong(compare, nullptr);
}
}
void KScheduler::OnThreadStateChanged(KernelCore& kernel, KThread* thread, ThreadState old_state) {
ASSERT(kernel.GlobalSchedulerContext().IsLocked());
// Check if the state has changed, because if it hasn't there's nothing to do.
@@ -205,7 +235,7 @@ void KScheduler::OnThreadStateChanged(KernelCore& kernel, Thread* thread, Thread
}
}
void KScheduler::OnThreadPriorityChanged(KernelCore& kernel, Thread* thread, s32 old_priority) {
void KScheduler::OnThreadPriorityChanged(KernelCore& kernel, KThread* thread, s32 old_priority) {
ASSERT(kernel.GlobalSchedulerContext().IsLocked());
// If the thread is runnable, we want to change its priority in the queue.
@@ -217,7 +247,7 @@ void KScheduler::OnThreadPriorityChanged(KernelCore& kernel, Thread* thread, s32
}
}
void KScheduler::OnThreadAffinityMaskChanged(KernelCore& kernel, Thread* thread,
void KScheduler::OnThreadAffinityMaskChanged(KernelCore& kernel, KThread* thread,
const KAffinityMask& old_affinity, s32 old_core) {
ASSERT(kernel.GlobalSchedulerContext().IsLocked());
@@ -237,8 +267,8 @@ void KScheduler::RotateScheduledQueue(s32 core_id, s32 priority) {
auto& priority_queue = GetPriorityQueue(kernel);
// Rotate the front of the queue to the end.
Thread* top_thread = priority_queue.GetScheduledFront(core_id, priority);
Thread* next_thread = nullptr;
KThread* top_thread = priority_queue.GetScheduledFront(core_id, priority);
KThread* next_thread = nullptr;
if (top_thread != nullptr) {
next_thread = priority_queue.MoveToScheduledBack(top_thread);
if (next_thread != top_thread) {
@@ -249,11 +279,11 @@ void KScheduler::RotateScheduledQueue(s32 core_id, s32 priority) {
// While we have a suggested thread, try to migrate it!
{
Thread* suggested = priority_queue.GetSuggestedFront(core_id, priority);
KThread* suggested = priority_queue.GetSuggestedFront(core_id, priority);
while (suggested != nullptr) {
// Check if the suggested thread is the top thread on its core.
const s32 suggested_core = suggested->GetActiveCore();
if (Thread* top_on_suggested_core =
if (KThread* top_on_suggested_core =
(suggested_core >= 0) ? priority_queue.GetScheduledFront(suggested_core)
: nullptr;
top_on_suggested_core != suggested) {
@@ -285,7 +315,7 @@ void KScheduler::RotateScheduledQueue(s32 core_id, s32 priority) {
// Now that we might have migrated a thread with the same priority, check if we can do better.
{
Thread* best_thread = priority_queue.GetScheduledFront(core_id);
KThread* best_thread = priority_queue.GetScheduledFront(core_id);
if (best_thread == GetCurrentThread()) {
best_thread = priority_queue.GetScheduledNext(core_id, best_thread);
}
@@ -293,7 +323,7 @@ void KScheduler::RotateScheduledQueue(s32 core_id, s32 priority) {
// If the best thread we can choose has a priority the same or worse than ours, try to
// migrate a higher priority thread.
if (best_thread != nullptr && best_thread->GetPriority() >= priority) {
Thread* suggested = priority_queue.GetSuggestedFront(core_id);
KThread* suggested = priority_queue.GetSuggestedFront(core_id);
while (suggested != nullptr) {
// If the suggestion's priority is the same as ours, don't bother.
if (suggested->GetPriority() >= best_thread->GetPriority()) {
@@ -302,7 +332,7 @@ void KScheduler::RotateScheduledQueue(s32 core_id, s32 priority) {
// Check if the suggested thread is the top thread on its core.
const s32 suggested_core = suggested->GetActiveCore();
if (Thread* top_on_suggested_core =
if (KThread* top_on_suggested_core =
(suggested_core >= 0) ? priority_queue.GetScheduledFront(suggested_core)
: nullptr;
top_on_suggested_core != suggested) {
@@ -352,12 +382,14 @@ void KScheduler::DisableScheduling(KernelCore& kernel) {
}
}
void KScheduler::EnableScheduling(KernelCore& kernel, u64 cores_needing_scheduling,
Core::EmuThreadHandle global_thread) {
void KScheduler::EnableScheduling(KernelCore& kernel, u64 cores_needing_scheduling) {
if (auto* scheduler = kernel.CurrentScheduler(); scheduler) {
scheduler->GetCurrentThread()->EnableDispatch();
ASSERT(scheduler->GetCurrentThread()->GetDisableDispatchCount() >= 1);
if (scheduler->GetCurrentThread()->GetDisableDispatchCount() >= 1) {
scheduler->GetCurrentThread()->EnableDispatch();
}
}
RescheduleCores(kernel, cores_needing_scheduling, global_thread);
RescheduleCores(kernel, cores_needing_scheduling);
}
u64 KScheduler::UpdateHighestPriorityThreads(KernelCore& kernel) {
@@ -372,15 +404,13 @@ KSchedulerPriorityQueue& KScheduler::GetPriorityQueue(KernelCore& kernel) {
return kernel.GlobalSchedulerContext().priority_queue;
}
void KScheduler::YieldWithoutCoreMigration() {
auto& kernel = system.Kernel();
void KScheduler::YieldWithoutCoreMigration(KernelCore& kernel) {
// Validate preconditions.
ASSERT(CanSchedule(kernel));
ASSERT(kernel.CurrentProcess() != nullptr);
// Get the current thread and process.
Thread& cur_thread = *GetCurrentThread();
KThread& cur_thread = Kernel::GetCurrentThread(kernel);
Process& cur_process = *kernel.CurrentProcess();
// If the thread's yield count matches, there's nothing for us to do.
@@ -398,7 +428,7 @@ void KScheduler::YieldWithoutCoreMigration() {
const auto cur_state = cur_thread.GetRawState();
if (cur_state == ThreadState::Runnable) {
// Put the current thread at the back of the queue.
Thread* next_thread = priority_queue.MoveToScheduledBack(std::addressof(cur_thread));
KThread* next_thread = priority_queue.MoveToScheduledBack(std::addressof(cur_thread));
IncrementScheduledCount(std::addressof(cur_thread));
// If the next thread is different, we have an update to perform.
@@ -413,15 +443,13 @@ void KScheduler::YieldWithoutCoreMigration() {
}
}
void KScheduler::YieldWithCoreMigration() {
auto& kernel = system.Kernel();
void KScheduler::YieldWithCoreMigration(KernelCore& kernel) {
// Validate preconditions.
ASSERT(CanSchedule(kernel));
ASSERT(kernel.CurrentProcess() != nullptr);
// Get the current thread and process.
Thread& cur_thread = *GetCurrentThread();
KThread& cur_thread = Kernel::GetCurrentThread(kernel);
Process& cur_process = *kernel.CurrentProcess();
// If the thread's yield count matches, there's nothing for us to do.
@@ -442,17 +470,17 @@ void KScheduler::YieldWithCoreMigration() {
const s32 core_id = cur_thread.GetActiveCore();
// Put the current thread at the back of the queue.
Thread* next_thread = priority_queue.MoveToScheduledBack(std::addressof(cur_thread));
KThread* next_thread = priority_queue.MoveToScheduledBack(std::addressof(cur_thread));
IncrementScheduledCount(std::addressof(cur_thread));
// While we have a suggested thread, try to migrate it!
bool recheck = false;
Thread* suggested = priority_queue.GetSuggestedFront(core_id);
KThread* suggested = priority_queue.GetSuggestedFront(core_id);
while (suggested != nullptr) {
// Check if the suggested thread is the thread running on its core.
const s32 suggested_core = suggested->GetActiveCore();
if (Thread* running_on_suggested_core =
if (KThread* running_on_suggested_core =
(suggested_core >= 0)
? kernel.Scheduler(suggested_core).state.highest_priority_thread
: nullptr;
@@ -503,15 +531,13 @@ void KScheduler::YieldWithCoreMigration() {
}
}
void KScheduler::YieldToAnyThread() {
auto& kernel = system.Kernel();
void KScheduler::YieldToAnyThread(KernelCore& kernel) {
// Validate preconditions.
ASSERT(CanSchedule(kernel));
ASSERT(kernel.CurrentProcess() != nullptr);
// Get the current thread and process.
Thread& cur_thread = *GetCurrentThread();
KThread& cur_thread = Kernel::GetCurrentThread(kernel);
Process& cur_process = *kernel.CurrentProcess();
// If the thread's yield count matches, there's nothing for us to do.
@@ -539,11 +565,11 @@ void KScheduler::YieldToAnyThread() {
// If there's nothing scheduled, we can try to perform a migration.
if (priority_queue.GetScheduledFront(core_id) == nullptr) {
// While we have a suggested thread, try to migrate it!
Thread* suggested = priority_queue.GetSuggestedFront(core_id);
KThread* suggested = priority_queue.GetSuggestedFront(core_id);
while (suggested != nullptr) {
// Check if the suggested thread is the top thread on its core.
const s32 suggested_core = suggested->GetActiveCore();
if (Thread* top_on_suggested_core =
if (KThread* top_on_suggested_core =
(suggested_core >= 0) ? priority_queue.GetScheduledFront(suggested_core)
: nullptr;
top_on_suggested_core != suggested) {
@@ -581,22 +607,21 @@ void KScheduler::YieldToAnyThread() {
}
}
KScheduler::KScheduler(Core::System& system, std::size_t core_id)
: system(system), core_id(core_id) {
KScheduler::KScheduler(Core::System& system, s32 core_id) : system(system), core_id(core_id) {
switch_fiber = std::make_shared<Common::Fiber>(OnSwitch, this);
this->state.needs_scheduling = true;
this->state.interrupt_task_thread_runnable = false;
this->state.should_count_idle = false;
this->state.idle_count = 0;
this->state.idle_thread_stack = nullptr;
this->state.highest_priority_thread = nullptr;
state.needs_scheduling.store(true);
state.interrupt_task_thread_runnable = false;
state.should_count_idle = false;
state.idle_count = 0;
state.idle_thread_stack = nullptr;
state.highest_priority_thread = nullptr;
}
KScheduler::~KScheduler() = default;
Thread* KScheduler::GetCurrentThread() const {
if (current_thread) {
return current_thread;
KThread* KScheduler::GetCurrentThread() const {
if (auto result = current_thread.load(); result) {
return result;
}
return idle_thread;
}
@@ -613,7 +638,7 @@ void KScheduler::RescheduleCurrentCore() {
phys_core.ClearInterrupt();
}
guard.lock();
if (this->state.needs_scheduling) {
if (state.needs_scheduling.load()) {
Schedule();
} else {
guard.unlock();
@@ -624,66 +649,76 @@ void KScheduler::OnThreadStart() {
SwitchContextStep2();
}
void KScheduler::Unload(Thread* thread) {
void KScheduler::Unload(KThread* thread) {
LOG_TRACE(Kernel, "core {}, unload thread {}", core_id, thread ? thread->GetName() : "nullptr");
if (thread) {
thread->SetIsRunning(false);
if (thread->IsContinuousOnSVC() && !thread->IsHLEThread()) {
if (thread->IsCallingSvc()) {
system.ArmInterface(core_id).ExceptionalExit();
thread->SetContinuousOnSVC(false);
thread->ClearIsCallingSvc();
}
if (!thread->IsHLEThread() && !thread->HasExited()) {
if (!thread->IsTerminationRequested()) {
prev_thread = thread;
Core::ARM_Interface& cpu_core = system.ArmInterface(core_id);
cpu_core.SaveContext(thread->GetContext32());
cpu_core.SaveContext(thread->GetContext64());
// Save the TPIDR_EL0 system register in case it was modified.
thread->SetTPIDR_EL0(cpu_core.GetTPIDR_EL0());
cpu_core.ClearExclusiveState();
} else {
prev_thread = nullptr;
}
thread->context_guard.unlock();
}
}
void KScheduler::Reload(Thread* thread) {
void KScheduler::Reload(KThread* thread) {
LOG_TRACE(Kernel, "core {}, reload thread {}", core_id, thread ? thread->GetName() : "nullptr");
if (thread) {
ASSERT_MSG(thread->GetState() == ThreadState::Runnable, "Thread must be runnable.");
// Cancel any outstanding wakeup events for this thread
thread->SetIsRunning(true);
thread->SetWasRunning(false);
auto* const thread_owner_process = thread->GetOwnerProcess();
if (thread_owner_process != nullptr) {
system.Kernel().MakeCurrentProcess(thread_owner_process);
}
if (!thread->IsHLEThread()) {
Core::ARM_Interface& cpu_core = system.ArmInterface(core_id);
cpu_core.LoadContext(thread->GetContext32());
cpu_core.LoadContext(thread->GetContext64());
cpu_core.SetTlsAddress(thread->GetTLSAddress());
cpu_core.SetTPIDR_EL0(thread->GetTPIDR_EL0());
cpu_core.ClearExclusiveState();
}
Core::ARM_Interface& cpu_core = system.ArmInterface(core_id);
cpu_core.LoadContext(thread->GetContext32());
cpu_core.LoadContext(thread->GetContext64());
cpu_core.SetTlsAddress(thread->GetTLSAddress());
cpu_core.SetTPIDR_EL0(thread->GetTPIDR_EL0());
cpu_core.ClearExclusiveState();
}
}
void KScheduler::SwitchContextStep2() {
// Load context of new thread
Reload(current_thread);
Reload(current_thread.load());
RescheduleCurrentCore();
}
void KScheduler::ScheduleImpl() {
Thread* previous_thread = current_thread;
current_thread = state.highest_priority_thread;
KThread* previous_thread = current_thread.load();
KThread* next_thread = state.highest_priority_thread;
this->state.needs_scheduling = false;
state.needs_scheduling = false;
if (current_thread == previous_thread) {
// We never want to schedule a null thread, so use the idle thread if we don't have a next.
if (next_thread == nullptr) {
next_thread = idle_thread;
}
// If we're not actually switching thread, there's nothing to do.
if (next_thread == current_thread.load()) {
guard.unlock();
return;
}
current_thread.store(next_thread);
Process* const previous_process = system.Kernel().CurrentProcess();
UpdateLastContextSwitchTime(previous_thread, previous_process);
@@ -714,28 +749,29 @@ void KScheduler::SwitchToCurrent() {
while (true) {
{
std::scoped_lock lock{guard};
current_thread = state.highest_priority_thread;
this->state.needs_scheduling = false;
current_thread.store(state.highest_priority_thread);
state.needs_scheduling.store(false);
}
const auto is_switch_pending = [this] {
std::scoped_lock lock{guard};
return state.needs_scheduling.load(std::memory_order_relaxed);
return state.needs_scheduling.load();
};
do {
if (current_thread != nullptr && !current_thread->IsHLEThread()) {
current_thread->context_guard.lock();
if (current_thread->GetRawState() != ThreadState::Runnable) {
current_thread->context_guard.unlock();
auto next_thread = current_thread.load();
if (next_thread != nullptr) {
next_thread->context_guard.lock();
if (next_thread->GetRawState() != ThreadState::Runnable) {
next_thread->context_guard.unlock();
break;
}
if (static_cast<u32>(current_thread->GetProcessorID()) != core_id) {
current_thread->context_guard.unlock();
if (next_thread->GetActiveCore() != core_id) {
next_thread->context_guard.unlock();
break;
}
}
std::shared_ptr<Common::Fiber>* next_context;
if (current_thread != nullptr) {
next_context = &current_thread->GetHostContext();
if (next_thread != nullptr) {
next_context = &next_thread->GetHostContext();
} else {
next_context = &idle_thread->GetHostContext();
}
@@ -744,13 +780,13 @@ void KScheduler::SwitchToCurrent() {
}
}
void KScheduler::UpdateLastContextSwitchTime(Thread* thread, Process* process) {
void KScheduler::UpdateLastContextSwitchTime(KThread* thread, Process* process) {
const u64 prev_switch_ticks = last_context_switch_time;
const u64 most_recent_switch_ticks = system.CoreTiming().GetCPUTicks();
const u64 update_ticks = most_recent_switch_ticks - prev_switch_ticks;
if (thread != nullptr) {
thread->UpdateCPUTimeTicks(update_ticks);
thread->AddCpuTime(core_id, update_ticks);
}
if (process != nullptr) {
@@ -764,15 +800,10 @@ void KScheduler::Initialize() {
std::string name = "Idle Thread Id:" + std::to_string(core_id);
std::function<void(void*)> init_func = Core::CpuManager::GetIdleThreadStartFunc();
void* init_func_parameter = system.GetCpuManager().GetStartFuncParamater();
ThreadType type = static_cast<ThreadType>(THREADTYPE_KERNEL | THREADTYPE_HLE | THREADTYPE_IDLE);
auto thread_res = Thread::Create(system, type, name, 0, 64, 0, static_cast<u32>(core_id), 0,
nullptr, std::move(init_func), init_func_parameter);
auto thread_res = KThread::Create(system, ThreadType::Main, name, 0,
KThread::IdleThreadPriority, 0, static_cast<u32>(core_id), 0,
nullptr, std::move(init_func), init_func_parameter);
idle_thread = thread_res.Unwrap().get();
{
KScopedSchedulerLock lock{system.Kernel()};
idle_thread->SetState(ThreadState::Runnable);
}
}
KScopedSchedulerLock::KScopedSchedulerLock(KernelCore& kernel)