kernel: convert KProcess to new style

This commit is contained in:
Liam 2023-03-07 16:45:13 -05:00
parent 46d09ae364
commit b8da5b73b2
10 changed files with 254 additions and 240 deletions

View file

@ -71,32 +71,32 @@ Result KProcess::Initialize(KProcess* process, Core::System& system, std::string
auto& kernel = system.Kernel();
process->name = std::move(process_name);
process->resource_limit = res_limit;
process->system_resource_address = 0;
process->state = State::Created;
process->program_id = 0;
process->process_id = type == ProcessType::KernelInternal ? kernel.CreateNewKernelProcessID()
: kernel.CreateNewUserProcessID();
process->capabilities.InitializeForMetadatalessProcess();
process->is_initialized = true;
process->m_resource_limit = res_limit;
process->m_system_resource_address = 0;
process->m_state = State::Created;
process->m_program_id = 0;
process->m_process_id = type == ProcessType::KernelInternal ? kernel.CreateNewKernelProcessID()
: kernel.CreateNewUserProcessID();
process->m_capabilities.InitializeForMetadatalessProcess();
process->m_is_initialized = true;
std::mt19937 rng(Settings::values.rng_seed.GetValue().value_or(std::time(nullptr)));
std::uniform_int_distribution<u64> distribution;
std::generate(process->random_entropy.begin(), process->random_entropy.end(),
std::generate(process->m_random_entropy.begin(), process->m_random_entropy.end(),
[&] { return distribution(rng); });
kernel.AppendNewProcess(process);
// Clear remaining fields.
process->num_running_threads = 0;
process->is_signaled = false;
process->exception_thread = nullptr;
process->is_suspended = false;
process->schedule_count = 0;
process->is_handle_table_initialized = false;
process->m_num_running_threads = 0;
process->m_is_signaled = false;
process->m_exception_thread = nullptr;
process->m_is_suspended = false;
process->m_schedule_count = 0;
process->m_is_handle_table_initialized = false;
// Open a reference to the resource limit.
process->resource_limit->Open();
process->m_resource_limit->Open();
R_SUCCEED();
}
@ -106,34 +106,34 @@ void KProcess::DoWorkerTaskImpl() {
}
KResourceLimit* KProcess::GetResourceLimit() const {
return resource_limit;
return m_resource_limit;
}
void KProcess::IncrementRunningThreadCount() {
ASSERT(num_running_threads.load() >= 0);
++num_running_threads;
ASSERT(m_num_running_threads.load() >= 0);
++m_num_running_threads;
}
void KProcess::DecrementRunningThreadCount() {
ASSERT(num_running_threads.load() > 0);
ASSERT(m_num_running_threads.load() > 0);
if (const auto prev = num_running_threads--; prev == 1) {
if (const auto prev = m_num_running_threads--; prev == 1) {
// TODO(bunnei): Process termination to be implemented when multiprocess is supported.
}
}
u64 KProcess::GetTotalPhysicalMemoryAvailable() {
const u64 capacity{resource_limit->GetFreeValue(LimitableResource::PhysicalMemoryMax) +
page_table.GetNormalMemorySize() + GetSystemResourceSize() + image_size +
main_thread_stack_size};
const u64 capacity{m_resource_limit->GetFreeValue(LimitableResource::PhysicalMemoryMax) +
m_page_table.GetNormalMemorySize() + GetSystemResourceSize() + m_image_size +
m_main_thread_stack_size};
if (const auto pool_size = m_kernel.MemoryManager().GetSize(KMemoryManager::Pool::Application);
capacity != pool_size) {
LOG_WARNING(Kernel, "capacity {} != application pool size {}", capacity, pool_size);
}
if (capacity < memory_usage_capacity) {
if (capacity < m_memory_usage_capacity) {
return capacity;
}
return memory_usage_capacity;
return m_memory_usage_capacity;
}
u64 KProcess::GetTotalPhysicalMemoryAvailableWithoutSystemResource() {
@ -141,7 +141,7 @@ u64 KProcess::GetTotalPhysicalMemoryAvailableWithoutSystemResource() {
}
u64 KProcess::GetTotalPhysicalMemoryUsed() {
return image_size + main_thread_stack_size + page_table.GetNormalMemorySize() +
return m_image_size + m_main_thread_stack_size + m_page_table.GetNormalMemorySize() +
GetSystemResourceSize();
}
@ -152,14 +152,14 @@ u64 KProcess::GetTotalPhysicalMemoryUsedWithoutSystemResource() {
bool KProcess::ReleaseUserException(KThread* thread) {
KScopedSchedulerLock sl{m_kernel};
if (exception_thread == thread) {
exception_thread = nullptr;
if (m_exception_thread == thread) {
m_exception_thread = nullptr;
// Remove waiter thread.
bool has_waiters{};
if (KThread* next = thread->RemoveKernelWaiterByKey(
std::addressof(has_waiters),
reinterpret_cast<uintptr_t>(std::addressof(exception_thread)));
reinterpret_cast<uintptr_t>(std::addressof(m_exception_thread)));
next != nullptr) {
next->EndWait(ResultSuccess);
}
@ -173,7 +173,7 @@ bool KProcess::ReleaseUserException(KThread* thread) {
}
void KProcess::PinCurrentThread(s32 core_id) {
ASSERT(m_kernel.GlobalSchedulerContext().IsLocked());
ASSERT(KScheduler::IsSchedulerLockedByCurrentThread(m_kernel));
// Get the current thread.
KThread* cur_thread =
@ -191,7 +191,7 @@ void KProcess::PinCurrentThread(s32 core_id) {
}
void KProcess::UnpinCurrentThread(s32 core_id) {
ASSERT(m_kernel.GlobalSchedulerContext().IsLocked());
ASSERT(KScheduler::IsSchedulerLockedByCurrentThread(m_kernel));
// Get the current thread.
KThread* cur_thread =
@ -206,7 +206,7 @@ void KProcess::UnpinCurrentThread(s32 core_id) {
}
void KProcess::UnpinThread(KThread* thread) {
ASSERT(m_kernel.GlobalSchedulerContext().IsLocked());
ASSERT(KScheduler::IsSchedulerLockedByCurrentThread(m_kernel));
// Get the thread's core id.
const auto core_id = thread->GetActiveCore();
@ -222,14 +222,14 @@ void KProcess::UnpinThread(KThread* thread) {
Result KProcess::AddSharedMemory(KSharedMemory* shmem, [[maybe_unused]] VAddr address,
[[maybe_unused]] size_t size) {
// Lock ourselves, to prevent concurrent access.
KScopedLightLock lk(state_lock);
KScopedLightLock lk(m_state_lock);
// Try to find an existing info for the memory.
KSharedMemoryInfo* shemen_info = nullptr;
const auto iter = std::find_if(
shared_memory_list.begin(), shared_memory_list.end(),
m_shared_memory_list.begin(), m_shared_memory_list.end(),
[shmem](const KSharedMemoryInfo* info) { return info->GetSharedMemory() == shmem; });
if (iter != shared_memory_list.end()) {
if (iter != m_shared_memory_list.end()) {
shemen_info = *iter;
}
@ -238,7 +238,7 @@ Result KProcess::AddSharedMemory(KSharedMemory* shmem, [[maybe_unused]] VAddr ad
R_UNLESS(shemen_info != nullptr, ResultOutOfMemory);
shemen_info->Initialize(shmem);
shared_memory_list.push_back(shemen_info);
m_shared_memory_list.push_back(shemen_info);
}
// Open a reference to the shared memory and its info.
@ -251,20 +251,20 @@ Result KProcess::AddSharedMemory(KSharedMemory* shmem, [[maybe_unused]] VAddr ad
void KProcess::RemoveSharedMemory(KSharedMemory* shmem, [[maybe_unused]] VAddr address,
[[maybe_unused]] size_t size) {
// Lock ourselves, to prevent concurrent access.
KScopedLightLock lk(state_lock);
KScopedLightLock lk(m_state_lock);
KSharedMemoryInfo* shemen_info = nullptr;
const auto iter = std::find_if(
shared_memory_list.begin(), shared_memory_list.end(),
m_shared_memory_list.begin(), m_shared_memory_list.end(),
[shmem](const KSharedMemoryInfo* info) { return info->GetSharedMemory() == shmem; });
if (iter != shared_memory_list.end()) {
if (iter != m_shared_memory_list.end()) {
shemen_info = *iter;
}
ASSERT(shemen_info != nullptr);
if (shemen_info->Close()) {
shared_memory_list.erase(iter);
m_shared_memory_list.erase(iter);
KSharedMemoryInfo::Free(m_kernel, shemen_info);
}
@ -273,22 +273,22 @@ void KProcess::RemoveSharedMemory(KSharedMemory* shmem, [[maybe_unused]] VAddr a
}
void KProcess::RegisterThread(KThread* thread) {
KScopedLightLock lk{list_lock};
KScopedLightLock lk{m_list_lock};
thread_list.push_back(thread);
m_thread_list.push_back(thread);
}
void KProcess::UnregisterThread(KThread* thread) {
KScopedLightLock lk{list_lock};
KScopedLightLock lk{m_list_lock};
thread_list.remove(thread);
m_thread_list.remove(thread);
}
u64 KProcess::GetFreeThreadCount() const {
if (resource_limit != nullptr) {
if (m_resource_limit != nullptr) {
const auto current_value =
resource_limit->GetCurrentValue(LimitableResource::ThreadCountMax);
const auto limit_value = resource_limit->GetLimitValue(LimitableResource::ThreadCountMax);
m_resource_limit->GetCurrentValue(LimitableResource::ThreadCountMax);
const auto limit_value = m_resource_limit->GetLimitValue(LimitableResource::ThreadCountMax);
return limit_value - current_value;
} else {
return 0;
@ -297,35 +297,35 @@ u64 KProcess::GetFreeThreadCount() const {
Result KProcess::Reset() {
// Lock the process and the scheduler.
KScopedLightLock lk(state_lock);
KScopedLightLock lk(m_state_lock);
KScopedSchedulerLock sl{m_kernel};
// Validate that we're in a state that we can reset.
R_UNLESS(state != State::Terminated, ResultInvalidState);
R_UNLESS(is_signaled, ResultInvalidState);
R_UNLESS(m_state != State::Terminated, ResultInvalidState);
R_UNLESS(m_is_signaled, ResultInvalidState);
// Clear signaled.
is_signaled = false;
m_is_signaled = false;
R_SUCCEED();
}
Result KProcess::SetActivity(ProcessActivity activity) {
// Lock ourselves and the scheduler.
KScopedLightLock lk{state_lock};
KScopedLightLock list_lk{list_lock};
KScopedLightLock lk{m_state_lock};
KScopedLightLock list_lk{m_list_lock};
KScopedSchedulerLock sl{m_kernel};
// Validate our state.
R_UNLESS(state != State::Terminating, ResultInvalidState);
R_UNLESS(state != State::Terminated, ResultInvalidState);
R_UNLESS(m_state != State::Terminating, ResultInvalidState);
R_UNLESS(m_state != State::Terminated, ResultInvalidState);
// Either pause or resume.
if (activity == ProcessActivity::Paused) {
// Verify that we're not suspended.
R_UNLESS(!is_suspended, ResultInvalidState);
R_UNLESS(!m_is_suspended, ResultInvalidState);
// Suspend all threads.
for (auto* thread : GetThreadList()) {
for (auto* thread : this->GetThreadList()) {
thread->RequestSuspend(SuspendType::Process);
}
@ -335,10 +335,10 @@ Result KProcess::SetActivity(ProcessActivity activity) {
ASSERT(activity == ProcessActivity::Runnable);
// Verify that we're suspended.
R_UNLESS(is_suspended, ResultInvalidState);
R_UNLESS(m_is_suspended, ResultInvalidState);
// Resume all threads.
for (auto* thread : GetThreadList()) {
for (auto* thread : this->GetThreadList()) {
thread->Resume(SuspendType::Process);
}
@ -350,31 +350,32 @@ Result KProcess::SetActivity(ProcessActivity activity) {
}
Result KProcess::LoadFromMetadata(const FileSys::ProgramMetadata& metadata, std::size_t code_size) {
program_id = metadata.GetTitleID();
ideal_core = metadata.GetMainThreadCore();
is_64bit_process = metadata.Is64BitProgram();
system_resource_size = metadata.GetSystemResourceSize();
image_size = code_size;
m_program_id = metadata.GetTitleID();
m_ideal_core = metadata.GetMainThreadCore();
m_is_64bit_process = metadata.Is64BitProgram();
m_system_resource_size = metadata.GetSystemResourceSize();
m_image_size = code_size;
KScopedResourceReservation memory_reservation(
resource_limit, LimitableResource::PhysicalMemoryMax, code_size + system_resource_size);
m_resource_limit, LimitableResource::PhysicalMemoryMax, code_size + m_system_resource_size);
if (!memory_reservation.Succeeded()) {
LOG_ERROR(Kernel, "Could not reserve process memory requirements of size {:X} bytes",
code_size + system_resource_size);
code_size + m_system_resource_size);
R_RETURN(ResultLimitReached);
}
// Initialize process address space
if (const Result result{page_table.InitializeForProcess(
if (const Result result{m_page_table.InitializeForProcess(
metadata.GetAddressSpaceType(), false, false, false, KMemoryManager::Pool::Application,
0x8000000, code_size, std::addressof(m_kernel.GetAppSystemResource()), resource_limit)};
0x8000000, code_size, std::addressof(m_kernel.GetAppSystemResource()),
m_resource_limit)};
result.IsError()) {
R_RETURN(result);
}
// Map process code region
if (const Result result{page_table.MapProcessCode(page_table.GetCodeRegionStart(),
code_size / PageSize, KMemoryState::Code,
KMemoryPermission::None)};
if (const Result result{m_page_table.MapProcessCode(m_page_table.GetCodeRegionStart(),
code_size / PageSize, KMemoryState::Code,
KMemoryPermission::None)};
result.IsError()) {
R_RETURN(result);
}
@ -382,7 +383,7 @@ Result KProcess::LoadFromMetadata(const FileSys::ProgramMetadata& metadata, std:
// Initialize process capabilities
const auto& caps{metadata.GetKernelCapabilities()};
if (const Result result{
capabilities.InitializeForUserProcess(caps.data(), caps.size(), page_table)};
m_capabilities.InitializeForUserProcess(caps.data(), caps.size(), m_page_table)};
result.IsError()) {
R_RETURN(result);
}
@ -392,12 +393,14 @@ Result KProcess::LoadFromMetadata(const FileSys::ProgramMetadata& metadata, std:
case FileSys::ProgramAddressSpaceType::Is32Bit:
case FileSys::ProgramAddressSpaceType::Is36Bit:
case FileSys::ProgramAddressSpaceType::Is39Bit:
memory_usage_capacity = page_table.GetHeapRegionEnd() - page_table.GetHeapRegionStart();
m_memory_usage_capacity =
m_page_table.GetHeapRegionEnd() - m_page_table.GetHeapRegionStart();
break;
case FileSys::ProgramAddressSpaceType::Is32BitNoMap:
memory_usage_capacity = page_table.GetHeapRegionEnd() - page_table.GetHeapRegionStart() +
page_table.GetAliasRegionEnd() - page_table.GetAliasRegionStart();
m_memory_usage_capacity =
m_page_table.GetHeapRegionEnd() - m_page_table.GetHeapRegionStart() +
m_page_table.GetAliasRegionEnd() - m_page_table.GetAliasRegionStart();
break;
default:
@ -406,26 +409,27 @@ Result KProcess::LoadFromMetadata(const FileSys::ProgramMetadata& metadata, std:
}
// Create TLS region
R_TRY(this->CreateThreadLocalRegion(std::addressof(plr_address)));
R_TRY(this->CreateThreadLocalRegion(std::addressof(m_plr_address)));
memory_reservation.Commit();
R_RETURN(handle_table.Initialize(capabilities.GetHandleTableSize()));
R_RETURN(m_handle_table.Initialize(m_capabilities.GetHandleTableSize()));
}
void KProcess::Run(s32 main_thread_priority, u64 stack_size) {
ASSERT(AllocateMainThreadStack(stack_size) == ResultSuccess);
resource_limit->Reserve(LimitableResource::ThreadCountMax, 1);
ASSERT(this->AllocateMainThreadStack(stack_size) == ResultSuccess);
m_resource_limit->Reserve(LimitableResource::ThreadCountMax, 1);
const std::size_t heap_capacity{memory_usage_capacity - (main_thread_stack_size + image_size)};
ASSERT(!page_table.SetMaxHeapSize(heap_capacity).IsError());
const std::size_t heap_capacity{m_memory_usage_capacity -
(m_main_thread_stack_size + m_image_size)};
ASSERT(!m_page_table.SetMaxHeapSize(heap_capacity).IsError());
ChangeState(State::Running);
this->ChangeState(State::Running);
SetupMainThread(m_kernel.System(), *this, main_thread_priority, main_thread_stack_top);
SetupMainThread(m_kernel.System(), *this, main_thread_priority, m_main_thread_stack_top);
}
void KProcess::PrepareForTermination() {
ChangeState(State::Terminating);
this->ChangeState(State::Terminating);
const auto stop_threads = [this](const std::vector<KThread*>& in_thread_list) {
for (auto* thread : in_thread_list) {
@ -445,12 +449,12 @@ void KProcess::PrepareForTermination() {
stop_threads(m_kernel.System().GlobalSchedulerContext().GetThreadList());
this->DeleteThreadLocalRegion(plr_address);
plr_address = 0;
this->DeleteThreadLocalRegion(m_plr_address);
m_plr_address = 0;
if (resource_limit) {
resource_limit->Release(LimitableResource::PhysicalMemoryMax,
main_thread_stack_size + image_size);
if (m_resource_limit) {
m_resource_limit->Release(LimitableResource::PhysicalMemoryMax,
m_main_thread_stack_size + m_image_size);
}
ChangeState(State::Terminated);
@ -459,8 +463,8 @@ void KProcess::PrepareForTermination() {
void KProcess::Finalize() {
// Free all shared memory infos.
{
auto it = shared_memory_list.begin();
while (it != shared_memory_list.end()) {
auto it = m_shared_memory_list.begin();
while (it != m_shared_memory_list.end()) {
KSharedMemoryInfo* info = *it;
KSharedMemory* shmem = info->GetSharedMemory();
@ -470,19 +474,19 @@ void KProcess::Finalize() {
shmem->Close();
it = shared_memory_list.erase(it);
it = m_shared_memory_list.erase(it);
KSharedMemoryInfo::Free(m_kernel, info);
}
}
// Release memory to the resource limit.
if (resource_limit != nullptr) {
resource_limit->Close();
resource_limit = nullptr;
if (m_resource_limit != nullptr) {
m_resource_limit->Close();
m_resource_limit = nullptr;
}
// Finalize the page table.
page_table.Finalize();
m_page_table.Finalize();
// Perform inherited finalization.
KAutoObjectWithSlabHeapAndContainer<KProcess, KWorkerTask>::Finalize();
@ -496,14 +500,14 @@ Result KProcess::CreateThreadLocalRegion(VAddr* out) {
{
KScopedSchedulerLock sl{m_kernel};
if (auto it = partially_used_tlp_tree.begin(); it != partially_used_tlp_tree.end()) {
if (auto it = m_partially_used_tlp_tree.begin(); it != m_partially_used_tlp_tree.end()) {
tlr = it->Reserve();
ASSERT(tlr != 0);
if (it->IsAllUsed()) {
tlp = std::addressof(*it);
partially_used_tlp_tree.erase(it);
fully_used_tlp_tree.insert(*tlp);
m_partially_used_tlp_tree.erase(it);
m_fully_used_tlp_tree.insert(*tlp);
}
*out = tlr;
@ -527,9 +531,9 @@ Result KProcess::CreateThreadLocalRegion(VAddr* out) {
{
KScopedSchedulerLock sl{m_kernel};
if (tlp->IsAllUsed()) {
fully_used_tlp_tree.insert(*tlp);
m_fully_used_tlp_tree.insert(*tlp);
} else {
partially_used_tlp_tree.insert(*tlp);
m_partially_used_tlp_tree.insert(*tlp);
}
}
@ -547,22 +551,22 @@ Result KProcess::DeleteThreadLocalRegion(VAddr addr) {
KScopedSchedulerLock sl{m_kernel};
// Try to find the page in the partially used list.
auto it = partially_used_tlp_tree.find_key(Common::AlignDown(addr, PageSize));
if (it == partially_used_tlp_tree.end()) {
auto it = m_partially_used_tlp_tree.find_key(Common::AlignDown(addr, PageSize));
if (it == m_partially_used_tlp_tree.end()) {
// If we don't find it, it has to be in the fully used list.
it = fully_used_tlp_tree.find_key(Common::AlignDown(addr, PageSize));
R_UNLESS(it != fully_used_tlp_tree.end(), ResultInvalidAddress);
it = m_fully_used_tlp_tree.find_key(Common::AlignDown(addr, PageSize));
R_UNLESS(it != m_fully_used_tlp_tree.end(), ResultInvalidAddress);
// Release the region.
it->Release(addr);
// Move the page out of the fully used list.
KThreadLocalPage* tlp = std::addressof(*it);
fully_used_tlp_tree.erase(it);
m_fully_used_tlp_tree.erase(it);
if (tlp->IsAllFree()) {
page_to_free = tlp;
} else {
partially_used_tlp_tree.insert(*tlp);
m_partially_used_tlp_tree.insert(*tlp);
}
} else {
// Release the region.
@ -571,7 +575,7 @@ Result KProcess::DeleteThreadLocalRegion(VAddr addr) {
// Handle the all-free case.
KThreadLocalPage* tlp = std::addressof(*it);
if (tlp->IsAllFree()) {
partially_used_tlp_tree.erase(it);
m_partially_used_tlp_tree.erase(it);
page_to_free = tlp;
}
}
@ -589,11 +593,11 @@ Result KProcess::DeleteThreadLocalRegion(VAddr addr) {
bool KProcess::InsertWatchpoint(Core::System& system, VAddr addr, u64 size,
DebugWatchpointType type) {
const auto watch{std::find_if(watchpoints.begin(), watchpoints.end(), [&](const auto& wp) {
const auto watch{std::find_if(m_watchpoints.begin(), m_watchpoints.end(), [&](const auto& wp) {
return wp.type == DebugWatchpointType::None;
})};
if (watch == watchpoints.end()) {
if (watch == m_watchpoints.end()) {
return false;
}
@ -602,7 +606,7 @@ bool KProcess::InsertWatchpoint(Core::System& system, VAddr addr, u64 size,
watch->type = type;
for (VAddr page = Common::AlignDown(addr, PageSize); page < addr + size; page += PageSize) {
debug_page_refcounts[page]++;
m_debug_page_refcounts[page]++;
system.Memory().MarkRegionDebug(page, PageSize, true);
}
@ -611,11 +615,11 @@ bool KProcess::InsertWatchpoint(Core::System& system, VAddr addr, u64 size,
bool KProcess::RemoveWatchpoint(Core::System& system, VAddr addr, u64 size,
DebugWatchpointType type) {
const auto watch{std::find_if(watchpoints.begin(), watchpoints.end(), [&](const auto& wp) {
const auto watch{std::find_if(m_watchpoints.begin(), m_watchpoints.end(), [&](const auto& wp) {
return wp.start_address == addr && wp.end_address == addr + size && wp.type == type;
})};
if (watch == watchpoints.end()) {
if (watch == m_watchpoints.end()) {
return false;
}
@ -624,8 +628,8 @@ bool KProcess::RemoveWatchpoint(Core::System& system, VAddr addr, u64 size,
watch->type = DebugWatchpointType::None;
for (VAddr page = Common::AlignDown(addr, PageSize); page < addr + size; page += PageSize) {
debug_page_refcounts[page]--;
if (!debug_page_refcounts[page]) {
m_debug_page_refcounts[page]--;
if (!m_debug_page_refcounts[page]) {
system.Memory().MarkRegionDebug(page, PageSize, false);
}
}
@ -636,7 +640,7 @@ bool KProcess::RemoveWatchpoint(Core::System& system, VAddr addr, u64 size,
void KProcess::LoadModule(CodeSet code_set, VAddr base_addr) {
const auto ReprotectSegment = [&](const CodeSet::Segment& segment,
Svc::MemoryPermission permission) {
page_table.SetProcessMemoryPermission(segment.addr + base_addr, segment.size, permission);
m_page_table.SetProcessMemoryPermission(segment.addr + base_addr, segment.size, permission);
};
m_kernel.System().Memory().WriteBlock(*this, base_addr, code_set.memory.data(),
@ -648,35 +652,35 @@ void KProcess::LoadModule(CodeSet code_set, VAddr base_addr) {
}
bool KProcess::IsSignaled() const {
ASSERT(m_kernel.GlobalSchedulerContext().IsLocked());
return is_signaled;
ASSERT(KScheduler::IsSchedulerLockedByCurrentThread(m_kernel));
return m_is_signaled;
}
KProcess::KProcess(KernelCore& kernel)
: KAutoObjectWithSlabHeapAndContainer{kernel}, page_table{m_kernel.System()},
handle_table{m_kernel}, address_arbiter{m_kernel.System()}, condition_var{m_kernel.System()},
state_lock{m_kernel}, list_lock{m_kernel} {}
: KAutoObjectWithSlabHeapAndContainer{kernel}, m_page_table{m_kernel.System()},
m_handle_table{m_kernel}, m_address_arbiter{m_kernel.System()},
m_condition_var{m_kernel.System()}, m_state_lock{m_kernel}, m_list_lock{m_kernel} {}
KProcess::~KProcess() = default;
void KProcess::ChangeState(State new_state) {
if (state == new_state) {
if (m_state == new_state) {
return;
}
state = new_state;
is_signaled = true;
NotifyAvailable();
m_state = new_state;
m_is_signaled = true;
this->NotifyAvailable();
}
Result KProcess::AllocateMainThreadStack(std::size_t stack_size) {
// Ensure that we haven't already allocated stack.
ASSERT(main_thread_stack_size == 0);
ASSERT(m_main_thread_stack_size == 0);
// Ensure that we're allocating a valid stack.
stack_size = Common::AlignUp(stack_size, PageSize);
// R_UNLESS(stack_size + image_size <= m_max_process_memory, ResultOutOfMemory);
R_UNLESS(stack_size + image_size >= image_size, ResultOutOfMemory);
R_UNLESS(stack_size + m_image_size >= m_image_size, ResultOutOfMemory);
// Place a tentative reservation of memory for our new stack.
KScopedResourceReservation mem_reservation(this, Svc::LimitableResource::PhysicalMemoryMax,
@ -686,11 +690,11 @@ Result KProcess::AllocateMainThreadStack(std::size_t stack_size) {
// Allocate and map our stack.
if (stack_size) {
KProcessAddress stack_bottom;
R_TRY(page_table.MapPages(std::addressof(stack_bottom), stack_size / PageSize,
KMemoryState::Stack, KMemoryPermission::UserReadWrite));
R_TRY(m_page_table.MapPages(std::addressof(stack_bottom), stack_size / PageSize,
KMemoryState::Stack, KMemoryPermission::UserReadWrite));
main_thread_stack_top = stack_bottom + stack_size;
main_thread_stack_size = stack_size;
m_main_thread_stack_top = stack_bottom + stack_size;
m_main_thread_stack_size = stack_size;
}
// We succeeded! Commit our memory reservation.