core: hle: kernel: k_process: Improve management of page table & cleanup.
This commit is contained in:
bunnei
parent
79bcb38321
commit
abcc009dff
@ -256,16 +256,21 @@ Result KPageTable::InitializeForProcess(FileSys::ProgramAddressSpaceType as_type
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m_mapped_physical_memory_size = 0;
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m_memory_pool = pool;
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m_page_table_impl.Resize(m_address_space_width, PageBits);
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m_page_table_impl = std::make_unique<Common::PageTable>();
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m_page_table_impl->Resize(m_address_space_width, PageBits);
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return m_memory_block_manager.Initialize(m_address_space_start, m_address_space_end,
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m_memory_block_slab_manager);
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}
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void KPageTable::Finalize() {
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// Finalize memory blocks.
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m_memory_block_manager.Finalize(m_memory_block_slab_manager, [&](VAddr addr, u64 size) {
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m_system.Memory().UnmapRegion(m_page_table_impl, addr, size);
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m_system.Memory().UnmapRegion(*m_page_table_impl, addr, size);
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});
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// Close the backing page table, as the destructor is not called for guest objects.
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m_page_table_impl.reset();
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}
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Result KPageTable::MapProcessCode(VAddr addr, size_t num_pages, KMemoryState state,
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@ -514,7 +519,7 @@ Result KPageTable::MakePageGroup(KPageGroup& pg, VAddr addr, size_t num_pages) {
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// Begin traversal.
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Common::PageTable::TraversalContext context;
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Common::PageTable::TraversalEntry next_entry;
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R_UNLESS(m_page_table_impl.BeginTraversal(next_entry, context, addr),
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R_UNLESS(m_page_table_impl->BeginTraversal(next_entry, context, addr),
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ResultInvalidCurrentMemory);
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// Prepare tracking variables.
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@ -525,7 +530,7 @@ Result KPageTable::MakePageGroup(KPageGroup& pg, VAddr addr, size_t num_pages) {
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// Iterate, adding to group as we go.
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const auto& memory_layout = m_system.Kernel().MemoryLayout();
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while (tot_size < size) {
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R_UNLESS(m_page_table_impl.ContinueTraversal(next_entry, context),
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R_UNLESS(m_page_table_impl->ContinueTraversal(next_entry, context),
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ResultInvalidCurrentMemory);
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if (next_entry.phys_addr != (cur_addr + cur_size)) {
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@ -588,7 +593,7 @@ bool KPageTable::IsValidPageGroup(const KPageGroup& pg_ll, VAddr addr, size_t nu
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// Begin traversal.
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Common::PageTable::TraversalContext context;
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Common::PageTable::TraversalEntry next_entry;
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if (!m_page_table_impl.BeginTraversal(next_entry, context, addr)) {
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if (!m_page_table_impl->BeginTraversal(next_entry, context, addr)) {
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return false;
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}
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@ -599,7 +604,7 @@ bool KPageTable::IsValidPageGroup(const KPageGroup& pg_ll, VAddr addr, size_t nu
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// Iterate, comparing expected to actual.
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while (tot_size < size) {
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if (!m_page_table_impl.ContinueTraversal(next_entry, context)) {
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if (!m_page_table_impl->ContinueTraversal(next_entry, context)) {
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return false;
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}
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@ -2042,7 +2047,7 @@ Result KPageTable::Operate(VAddr addr, size_t num_pages, const KPageGroup& page_
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switch (operation) {
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case OperationType::MapGroup:
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m_system.Memory().MapMemoryRegion(m_page_table_impl, addr, size, node.GetAddress());
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m_system.Memory().MapMemoryRegion(*m_page_table_impl, addr, size, node.GetAddress());
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break;
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default:
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ASSERT(false);
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@ -2064,12 +2069,12 @@ Result KPageTable::Operate(VAddr addr, size_t num_pages, KMemoryPermission perm,
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switch (operation) {
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case OperationType::Unmap:
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m_system.Memory().UnmapRegion(m_page_table_impl, addr, num_pages * PageSize);
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m_system.Memory().UnmapRegion(*m_page_table_impl, addr, num_pages * PageSize);
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break;
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case OperationType::Map: {
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ASSERT(map_addr);
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ASSERT(Common::IsAligned(map_addr, PageSize));
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m_system.Memory().MapMemoryRegion(m_page_table_impl, addr, num_pages * PageSize, map_addr);
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m_system.Memory().MapMemoryRegion(*m_page_table_impl, addr, num_pages * PageSize, map_addr);
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break;
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}
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case OperationType::ChangePermissions:
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@ -88,11 +88,11 @@ public:
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KMemoryAttribute attr_mask, KMemoryAttribute attr);
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Common::PageTable& PageTableImpl() {
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return m_page_table_impl;
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return *m_page_table_impl;
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}
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const Common::PageTable& PageTableImpl() const {
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return m_page_table_impl;
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return *m_page_table_impl;
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}
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bool CanContain(VAddr addr, size_t size, KMemoryState state) const;
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@ -303,7 +303,7 @@ public:
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return IsKernel() ? 1 : 4;
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}
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PAddr GetPhysicalAddr(VAddr addr) const {
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const auto backing_addr = m_page_table_impl.backing_addr[addr >> PageBits];
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const auto backing_addr = m_page_table_impl->backing_addr[addr >> PageBits];
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ASSERT(backing_addr);
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return backing_addr + addr;
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}
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@ -365,7 +365,7 @@ private:
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KMemoryManager::Pool m_memory_pool{KMemoryManager::Pool::Application};
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KMemoryManager::Direction m_allocation_option{KMemoryManager::Direction::FromFront};
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Common::PageTable m_page_table_impl;
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std::unique_ptr<Common::PageTable> m_page_table_impl;
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Core::System& m_system;
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};
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@ -72,6 +72,7 @@ Result KProcess::Initialize(KProcess* process, Core::System& system, std::string
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process->name = std::move(process_name);
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process->resource_limit = res_limit;
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process->system_resource_address = 0;
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process->state = State::Created;
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process->program_id = 0;
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process->process_id = type == ProcessType::KernelInternal ? kernel.CreateNewKernelProcessID()
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@ -92,6 +93,7 @@ Result KProcess::Initialize(KProcess* process, Core::System& system, std::string
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process->exception_thread = nullptr;
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process->is_suspended = false;
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process->schedule_count = 0;
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process->is_handle_table_initialized = false;
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// Open a reference to the resource limit.
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process->resource_limit->Open();
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@ -121,9 +123,9 @@ void KProcess::DecrementRunningThreadCount() {
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}
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}
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u64 KProcess::GetTotalPhysicalMemoryAvailable() const {
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u64 KProcess::GetTotalPhysicalMemoryAvailable() {
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const u64 capacity{resource_limit->GetFreeValue(LimitableResource::PhysicalMemory) +
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page_table->GetNormalMemorySize() + GetSystemResourceSize() + image_size +
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page_table.GetNormalMemorySize() + GetSystemResourceSize() + image_size +
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main_thread_stack_size};
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if (const auto pool_size = kernel.MemoryManager().GetSize(KMemoryManager::Pool::Application);
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capacity != pool_size) {
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@ -135,16 +137,16 @@ u64 KProcess::GetTotalPhysicalMemoryAvailable() const {
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return memory_usage_capacity;
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}
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u64 KProcess::GetTotalPhysicalMemoryAvailableWithoutSystemResource() const {
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u64 KProcess::GetTotalPhysicalMemoryAvailableWithoutSystemResource() {
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return GetTotalPhysicalMemoryAvailable() - GetSystemResourceSize();
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}
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u64 KProcess::GetTotalPhysicalMemoryUsed() const {
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return image_size + main_thread_stack_size + page_table->GetNormalMemorySize() +
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u64 KProcess::GetTotalPhysicalMemoryUsed() {
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return image_size + main_thread_stack_size + page_table.GetNormalMemorySize() +
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GetSystemResourceSize();
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}
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u64 KProcess::GetTotalPhysicalMemoryUsedWithoutSystemResource() const {
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u64 KProcess::GetTotalPhysicalMemoryUsedWithoutSystemResource() {
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return GetTotalPhysicalMemoryUsed() - GetSystemResourceUsage();
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}
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@ -348,6 +350,9 @@ Result KProcess::LoadFromMetadata(const FileSys::ProgramMetadata& metadata, std:
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system_resource_size = metadata.GetSystemResourceSize();
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image_size = code_size;
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// We currently do not support process-specific system resource
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UNIMPLEMENTED_IF(system_resource_size != 0);
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KScopedResourceReservation memory_reservation(resource_limit, LimitableResource::PhysicalMemory,
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code_size + system_resource_size);
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if (!memory_reservation.Succeeded()) {
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@ -356,7 +361,7 @@ Result KProcess::LoadFromMetadata(const FileSys::ProgramMetadata& metadata, std:
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return ResultLimitReached;
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}
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// Initialize proces address space
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if (const Result result{page_table->InitializeForProcess(
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if (const Result result{page_table.InitializeForProcess(
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metadata.GetAddressSpaceType(), false, 0x8000000, code_size,
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&kernel.GetApplicationMemoryBlockManager(), KMemoryManager::Pool::Application)};
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result.IsError()) {
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@ -364,7 +369,7 @@ Result KProcess::LoadFromMetadata(const FileSys::ProgramMetadata& metadata, std:
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}
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// Map process code region
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if (const Result result{page_table->MapProcessCode(page_table->GetCodeRegionStart(),
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if (const Result result{page_table.MapProcessCode(page_table.GetCodeRegionStart(),
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code_size / PageSize, KMemoryState::Code,
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KMemoryPermission::None)};
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result.IsError()) {
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@ -374,7 +379,7 @@ Result KProcess::LoadFromMetadata(const FileSys::ProgramMetadata& metadata, std:
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// Initialize process capabilities
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const auto& caps{metadata.GetKernelCapabilities()};
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if (const Result result{
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capabilities.InitializeForUserProcess(caps.data(), caps.size(), *page_table)};
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capabilities.InitializeForUserProcess(caps.data(), caps.size(), page_table)};
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result.IsError()) {
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return result;
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}
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@ -384,12 +389,12 @@ Result KProcess::LoadFromMetadata(const FileSys::ProgramMetadata& metadata, std:
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case FileSys::ProgramAddressSpaceType::Is32Bit:
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case FileSys::ProgramAddressSpaceType::Is36Bit:
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case FileSys::ProgramAddressSpaceType::Is39Bit:
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memory_usage_capacity = page_table->GetHeapRegionEnd() - page_table->GetHeapRegionStart();
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memory_usage_capacity = page_table.GetHeapRegionEnd() - page_table.GetHeapRegionStart();
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break;
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case FileSys::ProgramAddressSpaceType::Is32BitNoMap:
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memory_usage_capacity = page_table->GetHeapRegionEnd() - page_table->GetHeapRegionStart() +
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page_table->GetAliasRegionEnd() - page_table->GetAliasRegionStart();
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memory_usage_capacity = page_table.GetHeapRegionEnd() - page_table.GetHeapRegionStart() +
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page_table.GetAliasRegionEnd() - page_table.GetAliasRegionStart();
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break;
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default:
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@ -397,7 +402,7 @@ Result KProcess::LoadFromMetadata(const FileSys::ProgramMetadata& metadata, std:
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}
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// Create TLS region
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R_TRY(this->CreateThreadLocalRegion(std::addressof(tls_region_address)));
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R_TRY(this->CreateThreadLocalRegion(std::addressof(plr_address)));
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memory_reservation.Commit();
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return handle_table.Initialize(capabilities.GetHandleTableSize());
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@ -409,7 +414,7 @@ void KProcess::Run(s32 main_thread_priority, u64 stack_size) {
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resource_limit->Reserve(LimitableResource::PhysicalMemory, main_thread_stack_size);
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const std::size_t heap_capacity{memory_usage_capacity - (main_thread_stack_size + image_size)};
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ASSERT(!page_table->SetMaxHeapSize(heap_capacity).IsError());
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ASSERT(!page_table.SetMaxHeapSize(heap_capacity).IsError());
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ChangeState(State::Running);
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@ -437,8 +442,8 @@ void KProcess::PrepareForTermination() {
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stop_threads(kernel.System().GlobalSchedulerContext().GetThreadList());
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this->DeleteThreadLocalRegion(tls_region_address);
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tls_region_address = 0;
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this->DeleteThreadLocalRegion(plr_address);
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plr_address = 0;
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if (resource_limit) {
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resource_limit->Release(LimitableResource::PhysicalMemory,
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@ -474,7 +479,7 @@ void KProcess::Finalize() {
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}
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// Finalize the page table.
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page_table.reset();
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page_table.Finalize();
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// Perform inherited finalization.
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KAutoObjectWithSlabHeapAndContainer<KProcess, KWorkerTask>::Finalize();
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@ -628,7 +633,7 @@ bool KProcess::RemoveWatchpoint(Core::System& system, VAddr addr, u64 size,
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void KProcess::LoadModule(CodeSet code_set, VAddr base_addr) {
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const auto ReprotectSegment = [&](const CodeSet::Segment& segment,
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Svc::MemoryPermission permission) {
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page_table->SetProcessMemoryPermission(segment.addr + base_addr, segment.size, permission);
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page_table.SetProcessMemoryPermission(segment.addr + base_addr, segment.size, permission);
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};
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kernel.System().Memory().WriteBlock(*this, base_addr, code_set.memory.data(),
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@ -645,8 +650,7 @@ bool KProcess::IsSignaled() const {
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}
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KProcess::KProcess(KernelCore& kernel_)
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: KAutoObjectWithSlabHeapAndContainer{kernel_}, page_table{std::make_unique<KPageTable>(
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kernel_.System())},
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: KAutoObjectWithSlabHeapAndContainer{kernel_}, page_table{kernel_.System()},
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handle_table{kernel_}, address_arbiter{kernel_.System()}, condition_var{kernel_.System()},
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state_lock{kernel_}, list_lock{kernel_} {}
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@ -668,11 +672,11 @@ Result KProcess::AllocateMainThreadStack(std::size_t stack_size) {
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// The kernel always ensures that the given stack size is page aligned.
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main_thread_stack_size = Common::AlignUp(stack_size, PageSize);
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const VAddr start{page_table->GetStackRegionStart()};
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const std::size_t size{page_table->GetStackRegionEnd() - start};
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const VAddr start{page_table.GetStackRegionStart()};
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const std::size_t size{page_table.GetStackRegionEnd() - start};
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CASCADE_RESULT(main_thread_stack_top,
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page_table->AllocateAndMapMemory(
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page_table.AllocateAndMapMemory(
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main_thread_stack_size / PageSize, PageSize, false, start, size / PageSize,
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KMemoryState::Stack, KMemoryPermission::UserReadWrite));
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@ -681,4 +685,12 @@ Result KProcess::AllocateMainThreadStack(std::size_t stack_size) {
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return ResultSuccess;
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}
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void KProcess::FinalizeHandleTable() {
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// Finalize the table.
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handle_table.Finalize();
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// Note that the table is finalized.
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is_handle_table_initialized = false;
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}
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} // namespace Kernel
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@ -13,6 +13,7 @@
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#include "core/hle/kernel/k_auto_object.h"
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#include "core/hle/kernel/k_condition_variable.h"
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#include "core/hle/kernel/k_handle_table.h"
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#include "core/hle/kernel/k_page_table.h"
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#include "core/hle/kernel/k_synchronization_object.h"
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#include "core/hle/kernel/k_thread_local_page.h"
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#include "core/hle/kernel/k_worker_task.h"
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@ -31,7 +32,6 @@ class ProgramMetadata;
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namespace Kernel {
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class KernelCore;
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class KPageTable;
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class KResourceLimit;
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class KThread;
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class KSharedMemoryInfo;
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@ -107,12 +107,12 @@ public:
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/// Gets a reference to the process' page table.
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KPageTable& PageTable() {
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return *page_table;
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return page_table;
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}
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/// Gets const a reference to the process' page table.
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const KPageTable& PageTable() const {
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return *page_table;
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return page_table;
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}
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/// Gets a reference to the process' handle table.
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@ -150,9 +150,8 @@ public:
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return address_arbiter.WaitForAddress(address, arb_type, value, timeout);
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}
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/// Gets the address to the process' dedicated TLS region.
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VAddr GetTLSRegionAddress() const {
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return tls_region_address;
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VAddr GetProcessLocalRegionAddress() const {
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return plr_address;
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}
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/// Gets the current status of the process
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@ -279,18 +278,18 @@ public:
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}
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/// Retrieves the total physical memory available to this process in bytes.
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u64 GetTotalPhysicalMemoryAvailable() const;
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u64 GetTotalPhysicalMemoryAvailable();
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/// Retrieves the total physical memory available to this process in bytes,
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/// without the size of the personal system resource heap added to it.
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u64 GetTotalPhysicalMemoryAvailableWithoutSystemResource() const;
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u64 GetTotalPhysicalMemoryAvailableWithoutSystemResource();
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/// Retrieves the total physical memory used by this process in bytes.
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u64 GetTotalPhysicalMemoryUsed() const;
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u64 GetTotalPhysicalMemoryUsed();
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/// Retrieves the total physical memory used by this process in bytes,
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/// without the size of the personal system resource heap added to it.
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u64 GetTotalPhysicalMemoryUsedWithoutSystemResource() const;
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u64 GetTotalPhysicalMemoryUsedWithoutSystemResource();
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/// Gets the list of all threads created with this process as their owner.
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std::list<KThread*>& GetThreadList() {
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@ -413,8 +412,10 @@ private:
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/// Allocates the main thread stack for the process, given the stack size in bytes.
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Result AllocateMainThreadStack(std::size_t stack_size);
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void FinalizeHandleTable();
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/// Memory manager for this process
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std::unique_ptr<KPageTable> page_table;
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KPageTable page_table;
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/// Current status of the process
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State state{};
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@ -433,6 +434,8 @@ private:
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/// Resource limit descriptor for this process
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KResourceLimit* resource_limit{};
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VAddr system_resource_address{};
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/// The ideal CPU core for this process, threads are scheduled on this core by default.
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u8 ideal_core = 0;
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@ -459,7 +462,7 @@ private:
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KConditionVariable condition_var;
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/// Address indicating the location of the process' dedicated TLS region.
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VAddr tls_region_address = 0;
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VAddr plr_address = 0;
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/// Random values for svcGetInfo RandomEntropy
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std::array<u64, RANDOM_ENTROPY_SIZE> random_entropy{};
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@ -485,8 +488,12 @@ private:
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/// Schedule count of this process
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s64 schedule_count{};
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size_t memory_release_hint{};
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bool is_signaled{};
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bool is_suspended{};
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bool is_immortal{};
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bool is_handle_table_initialized{};
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bool is_initialized{};
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std::atomic<u16> num_running_threads{};
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@ -95,6 +95,15 @@ struct KernelCore::Impl {
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}
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}
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void CloseCurrentProcess() {
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(*current_process).Finalize();
|
||||
// current_process->Close();
|
||||
// TODO: The current process should be destroyed based on accurate ref counting after
|
||||
// calling Close(). Adding a manual Destroy() call instead to avoid a memory leak.
|
||||
(*current_process).Destroy();
|
||||
current_process = nullptr;
|
||||
}
|
||||
|
||||
void Shutdown() {
|
||||
is_shutting_down.store(true, std::memory_order_relaxed);
|
||||
SCOPE_EXIT({ is_shutting_down.store(false, std::memory_order_relaxed); });
|
||||
@ -157,15 +166,7 @@ struct KernelCore::Impl {
|
||||
}
|
||||
}
|
||||
|
||||
// Shutdown all processes.
|
||||
if (current_process) {
|
||||
(*current_process).Finalize();
|
||||
// current_process->Close();
|
||||
// TODO: The current process should be destroyed based on accurate ref counting after
|
||||
// calling Close(). Adding a manual Destroy() call instead to avoid a memory leak.
|
||||
(*current_process).Destroy();
|
||||
current_process = nullptr;
|
||||
}
|
||||
CloseCurrentProcess();
|
||||
|
||||
// Track kernel objects that were not freed on shutdown
|
||||
{
|
||||
@ -870,6 +871,10 @@ const KProcess* KernelCore::CurrentProcess() const {
|
||||
return impl->current_process;
|
||||
}
|
||||
|
||||
void KernelCore::CloseCurrentProcess() {
|
||||
impl->CloseCurrentProcess();
|
||||
}
|
||||
|
||||
const std::vector<KProcess*>& KernelCore::GetProcessList() const {
|
||||
return impl->process_list;
|
||||
}
|
||||
|
||||
@ -131,6 +131,9 @@ public:
|
||||
/// Retrieves a const pointer to the current process.
|
||||
const KProcess* CurrentProcess() const;
|
||||
|
||||
/// Closes the current process.
|
||||
void CloseCurrentProcess();
|
||||
|
||||
/// Retrieves the list of processes.
|
||||
const std::vector<KProcess*>& GetProcessList() const;
|
||||
|
||||
|
||||
@ -933,7 +933,7 @@ static Result GetInfo(Core::System& system, u64* result, u64 info_id, Handle han
|
||||
return ResultSuccess;
|
||||
|
||||
case GetInfoType::UserExceptionContextAddr:
|
||||
*result = process->GetTLSRegionAddress();
|
||||
*result = process->GetProcessLocalRegionAddress();
|
||||
return ResultSuccess;
|
||||
|
||||
case GetInfoType::TotalPhysicalMemoryAvailableWithoutSystemResource:
|
||||
|
||||
Loading…
Reference in New Issue
Block a user