From abcc009dff5d98b5a04229f3a82baab23d568244 Mon Sep 17 00:00:00 2001 From: bunnei Date: Sun, 2 Oct 2022 14:26:30 -0700 Subject: core: hle: kernel: k_process: Improve management of page table & cleanup. --- src/core/hle/kernel/k_process.cpp | 62 +++++++++++++++++++++++---------------- 1 file changed, 37 insertions(+), 25 deletions(-) (limited to 'src/core/hle/kernel/k_process.cpp') diff --git a/src/core/hle/kernel/k_process.cpp b/src/core/hle/kernel/k_process.cpp index abc2115bd..1a0aec56a 100644 --- a/src/core/hle/kernel/k_process.cpp +++ b/src/core/hle/kernel/k_process.cpp @@ -72,6 +72,7 @@ Result KProcess::Initialize(KProcess* process, Core::System& system, std::string 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() @@ -92,6 +93,7 @@ Result KProcess::Initialize(KProcess* process, Core::System& system, std::string process->exception_thread = nullptr; process->is_suspended = false; process->schedule_count = 0; + process->is_handle_table_initialized = false; // Open a reference to the resource limit. process->resource_limit->Open(); @@ -121,9 +123,9 @@ void KProcess::DecrementRunningThreadCount() { } } -u64 KProcess::GetTotalPhysicalMemoryAvailable() const { +u64 KProcess::GetTotalPhysicalMemoryAvailable() { const u64 capacity{resource_limit->GetFreeValue(LimitableResource::PhysicalMemory) + - page_table->GetNormalMemorySize() + GetSystemResourceSize() + image_size + + page_table.GetNormalMemorySize() + GetSystemResourceSize() + image_size + main_thread_stack_size}; if (const auto pool_size = kernel.MemoryManager().GetSize(KMemoryManager::Pool::Application); capacity != pool_size) { @@ -135,16 +137,16 @@ u64 KProcess::GetTotalPhysicalMemoryAvailable() const { return memory_usage_capacity; } -u64 KProcess::GetTotalPhysicalMemoryAvailableWithoutSystemResource() const { +u64 KProcess::GetTotalPhysicalMemoryAvailableWithoutSystemResource() { return GetTotalPhysicalMemoryAvailable() - GetSystemResourceSize(); } -u64 KProcess::GetTotalPhysicalMemoryUsed() const { - return image_size + main_thread_stack_size + page_table->GetNormalMemorySize() + +u64 KProcess::GetTotalPhysicalMemoryUsed() { + return image_size + main_thread_stack_size + page_table.GetNormalMemorySize() + GetSystemResourceSize(); } -u64 KProcess::GetTotalPhysicalMemoryUsedWithoutSystemResource() const { +u64 KProcess::GetTotalPhysicalMemoryUsedWithoutSystemResource() { return GetTotalPhysicalMemoryUsed() - GetSystemResourceUsage(); } @@ -348,6 +350,9 @@ Result KProcess::LoadFromMetadata(const FileSys::ProgramMetadata& metadata, std: system_resource_size = metadata.GetSystemResourceSize(); image_size = code_size; + // We currently do not support process-specific system resource + UNIMPLEMENTED_IF(system_resource_size != 0); + KScopedResourceReservation memory_reservation(resource_limit, LimitableResource::PhysicalMemory, code_size + system_resource_size); if (!memory_reservation.Succeeded()) { @@ -356,7 +361,7 @@ Result KProcess::LoadFromMetadata(const FileSys::ProgramMetadata& metadata, std: return ResultLimitReached; } // Initialize proces address space - if (const Result result{page_table->InitializeForProcess( + if (const Result result{page_table.InitializeForProcess( metadata.GetAddressSpaceType(), false, 0x8000000, code_size, &kernel.GetApplicationMemoryBlockManager(), KMemoryManager::Pool::Application)}; result.IsError()) { @@ -364,9 +369,9 @@ Result KProcess::LoadFromMetadata(const FileSys::ProgramMetadata& metadata, std: } // 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{page_table.MapProcessCode(page_table.GetCodeRegionStart(), + code_size / PageSize, KMemoryState::Code, + KMemoryPermission::None)}; result.IsError()) { return result; } @@ -374,7 +379,7 @@ 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)}; + capabilities.InitializeForUserProcess(caps.data(), caps.size(), page_table)}; result.IsError()) { return result; } @@ -384,12 +389,12 @@ 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(); + memory_usage_capacity = page_table.GetHeapRegionEnd() - page_table.GetHeapRegionStart(); break; case FileSys::ProgramAddressSpaceType::Is32BitNoMap: - memory_usage_capacity = page_table->GetHeapRegionEnd() - page_table->GetHeapRegionStart() + - page_table->GetAliasRegionEnd() - page_table->GetAliasRegionStart(); + memory_usage_capacity = page_table.GetHeapRegionEnd() - page_table.GetHeapRegionStart() + + page_table.GetAliasRegionEnd() - page_table.GetAliasRegionStart(); break; default: @@ -397,7 +402,7 @@ Result KProcess::LoadFromMetadata(const FileSys::ProgramMetadata& metadata, std: } // Create TLS region - R_TRY(this->CreateThreadLocalRegion(std::addressof(tls_region_address))); + R_TRY(this->CreateThreadLocalRegion(std::addressof(plr_address))); memory_reservation.Commit(); return handle_table.Initialize(capabilities.GetHandleTableSize()); @@ -409,7 +414,7 @@ void KProcess::Run(s32 main_thread_priority, u64 stack_size) { resource_limit->Reserve(LimitableResource::PhysicalMemory, main_thread_stack_size); const std::size_t heap_capacity{memory_usage_capacity - (main_thread_stack_size + image_size)}; - ASSERT(!page_table->SetMaxHeapSize(heap_capacity).IsError()); + ASSERT(!page_table.SetMaxHeapSize(heap_capacity).IsError()); ChangeState(State::Running); @@ -437,8 +442,8 @@ void KProcess::PrepareForTermination() { stop_threads(kernel.System().GlobalSchedulerContext().GetThreadList()); - this->DeleteThreadLocalRegion(tls_region_address); - tls_region_address = 0; + this->DeleteThreadLocalRegion(plr_address); + plr_address = 0; if (resource_limit) { resource_limit->Release(LimitableResource::PhysicalMemory, @@ -474,7 +479,7 @@ void KProcess::Finalize() { } // Finalize the page table. - page_table.reset(); + page_table.Finalize(); // Perform inherited finalization. KAutoObjectWithSlabHeapAndContainer::Finalize(); @@ -628,7 +633,7 @@ 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); + page_table.SetProcessMemoryPermission(segment.addr + base_addr, segment.size, permission); }; kernel.System().Memory().WriteBlock(*this, base_addr, code_set.memory.data(), @@ -645,8 +650,7 @@ bool KProcess::IsSignaled() const { } KProcess::KProcess(KernelCore& kernel_) - : KAutoObjectWithSlabHeapAndContainer{kernel_}, page_table{std::make_unique( - kernel_.System())}, + : KAutoObjectWithSlabHeapAndContainer{kernel_}, page_table{kernel_.System()}, handle_table{kernel_}, address_arbiter{kernel_.System()}, condition_var{kernel_.System()}, state_lock{kernel_}, list_lock{kernel_} {} @@ -668,11 +672,11 @@ Result KProcess::AllocateMainThreadStack(std::size_t stack_size) { // The kernel always ensures that the given stack size is page aligned. main_thread_stack_size = Common::AlignUp(stack_size, PageSize); - const VAddr start{page_table->GetStackRegionStart()}; - const std::size_t size{page_table->GetStackRegionEnd() - start}; + const VAddr start{page_table.GetStackRegionStart()}; + const std::size_t size{page_table.GetStackRegionEnd() - start}; CASCADE_RESULT(main_thread_stack_top, - page_table->AllocateAndMapMemory( + page_table.AllocateAndMapMemory( main_thread_stack_size / PageSize, PageSize, false, start, size / PageSize, KMemoryState::Stack, KMemoryPermission::UserReadWrite)); @@ -681,4 +685,12 @@ Result KProcess::AllocateMainThreadStack(std::size_t stack_size) { return ResultSuccess; } +void KProcess::FinalizeHandleTable() { + // Finalize the table. + handle_table.Finalize(); + + // Note that the table is finalized. + is_handle_table_initialized = false; +} + } // namespace Kernel -- cgit v1.2.3