mirror of
https://github.com/Atmosphere-NX/Atmosphere
synced 2024-12-04 23:39:24 +00:00
1152 lines
46 KiB
C++
1152 lines
46 KiB
C++
/*
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* Copyright (c) 2018-2020 Atmosphère-NX
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <mesosphere.hpp>
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namespace ams::kern {
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namespace {
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constexpr u64 InitialProcessIdMin = 1;
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constexpr u64 InitialProcessIdMax = 0x50;
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constexpr u64 ProcessIdMin = InitialProcessIdMax + 1;
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constexpr u64 ProcessIdMax = std::numeric_limits<u64>::max();
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std::atomic<u64> g_initial_process_id = InitialProcessIdMin;
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std::atomic<u64> g_process_id = ProcessIdMin;
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void TerminateChildren(KProcess *process, const KThread *thread_to_not_terminate) {
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/* Request that all children threads terminate. */
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{
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KScopedLightLock proc_lk(process->GetListLock());
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KScopedSchedulerLock sl;
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auto &thread_list = process->GetThreadList();
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for (auto it = thread_list.begin(); it != thread_list.end(); ++it) {
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if (KThread *thread = std::addressof(*it); thread != thread_to_not_terminate) {
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if (thread->GetState() != KThread::ThreadState_Terminated) {
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thread->RequestTerminate();
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}
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}
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}
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}
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/* Wait for all children threads to terminate.*/
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while (true) {
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/* Get the next child. */
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KThread *cur_child = nullptr;
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{
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KScopedLightLock proc_lk(process->GetListLock());
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auto &thread_list = process->GetThreadList();
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for (auto it = thread_list.begin(); it != thread_list.end(); ++it) {
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if (KThread *thread = std::addressof(*it); thread != thread_to_not_terminate) {
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if (thread->GetState() != KThread::ThreadState_Terminated) {
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if (AMS_LIKELY(thread->Open())) {
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cur_child = thread;
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break;
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}
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}
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}
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}
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}
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/* If we didn't find any non-terminated children, we're done. */
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if (cur_child == nullptr) {
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break;
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}
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/* Terminate and close the thread. */
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cur_child->Terminate();
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cur_child->Close();
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}
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}
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}
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void KProcess::Finalize() {
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/* Ensure we're not executing on any core. */
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for (size_t i = 0; i < cpu::NumCores; ++i) {
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MESOSPHERE_ASSERT(Kernel::GetCurrentContext(static_cast<s32>(i)).current_process.load(std::memory_order_relaxed) != this);
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}
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/* Delete the process local region. */
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this->DeleteThreadLocalRegion(this->plr_address);
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/* Get the used memory size. */
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const size_t used_memory_size = this->GetUsedUserPhysicalMemorySize();
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/* Finalize the page table. */
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this->page_table.Finalize();
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/* Free the system resource. */
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if (this->system_resource_address != Null<KVirtualAddress>) {
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/* Check that we have no outstanding allocations. */
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MESOSPHERE_ABORT_UNLESS(this->memory_block_slab_manager.GetUsed() == 0);
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MESOSPHERE_ABORT_UNLESS(this->block_info_manager.GetUsed() == 0);
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MESOSPHERE_ABORT_UNLESS(this->page_table_manager.GetUsed() == 0);
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/* Free the memory. */
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KSystemControl::FreeSecureMemory(this->system_resource_address, this->system_resource_num_pages * PageSize, this->memory_pool);
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/* Clear our tracking variables. */
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this->system_resource_address = Null<KVirtualAddress>;
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this->system_resource_num_pages = 0;
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/* Finalize optimized memory. If memory wasn't optimized, this is a no-op. */
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Kernel::GetMemoryManager().FinalizeOptimizedMemory(this->GetId(), this->memory_pool);
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}
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/* Release memory to the resource limit. */
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if (this->resource_limit != nullptr) {
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MESOSPHERE_ABORT_UNLESS(used_memory_size >= this->memory_release_hint);
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this->resource_limit->Release(ams::svc::LimitableResource_PhysicalMemoryMax, used_memory_size, used_memory_size - this->memory_release_hint);
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this->resource_limit->Close();
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}
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/* Free all shared memory infos. */
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{
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auto it = this->shared_memory_list.begin();
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while (it != this->shared_memory_list.end()) {
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KSharedMemoryInfo *info = std::addressof(*it);
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KSharedMemory *shmem = info->GetSharedMemory();
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while (!info->Close()) {
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shmem->Close();
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}
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shmem->Close();
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it = this->shared_memory_list.erase(it);
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KSharedMemoryInfo::Free(info);
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}
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}
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/* Our thread local page list must be empty at this point. */
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MESOSPHERE_ABORT_UNLESS(this->partially_used_tlp_tree.empty());
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MESOSPHERE_ABORT_UNLESS(this->fully_used_tlp_tree.empty());
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/* Log that we finalized for debug. */
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MESOSPHERE_LOG("KProcess::Finalize() pid=%ld name=%-12s\n", this->process_id, this->name);
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/* Perform inherited finalization. */
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KAutoObjectWithSlabHeapAndContainer<KProcess, KSynchronizationObject>::Finalize();
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}
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Result KProcess::Initialize(const ams::svc::CreateProcessParameter ¶ms) {
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/* TODO: Validate intended kernel version. */
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/* How should we do this? */
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/* Create and clear the process local region. */
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R_TRY(this->CreateThreadLocalRegion(std::addressof(this->plr_address)));
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this->plr_heap_address = this->GetThreadLocalRegionPointer(this->plr_address);
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std::memset(this->plr_heap_address, 0, ams::svc::ThreadLocalRegionSize);
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/* Copy in the name from parameters. */
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static_assert(sizeof(params.name) < sizeof(this->name));
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std::memcpy(this->name, params.name, sizeof(params.name));
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this->name[sizeof(params.name)] = 0;
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/* Set misc fields. */
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this->state = State_Created;
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this->main_thread_stack_size = 0;
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this->creation_time = KHardwareTimer::GetTick();
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this->used_kernel_memory_size = 0;
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this->ideal_core_id = 0;
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this->flags = params.flags;
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this->version = params.version;
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this->program_id = params.program_id;
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this->code_address = params.code_address;
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this->code_size = params.code_num_pages * PageSize;
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this->is_application = (params.flags & ams::svc::CreateProcessFlag_IsApplication);
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this->is_jit_debug = false;
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/* Set thread fields. */
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for (size_t i = 0; i < cpu::NumCores; i++) {
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this->running_threads[i] = nullptr;
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this->running_thread_idle_counts[i] = 0;
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this->pinned_threads[i] = nullptr;
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}
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/* Set max memory based on address space type. */
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switch ((params.flags & ams::svc::CreateProcessFlag_AddressSpaceMask)) {
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case ams::svc::CreateProcessFlag_AddressSpace32Bit:
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case ams::svc::CreateProcessFlag_AddressSpace64BitDeprecated:
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case ams::svc::CreateProcessFlag_AddressSpace64Bit:
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this->max_process_memory = this->page_table.GetHeapRegionSize();
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break;
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case ams::svc::CreateProcessFlag_AddressSpace32BitWithoutAlias:
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this->max_process_memory = this->page_table.GetHeapRegionSize() + this->page_table.GetAliasRegionSize();
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break;
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MESOSPHERE_UNREACHABLE_DEFAULT_CASE();
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}
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/* Generate random entropy. */
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KSystemControl::GenerateRandomBytes(this->entropy, sizeof(this->entropy));
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/* Clear remaining fields. */
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this->num_threads = 0;
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this->peak_num_threads = 0;
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this->num_created_threads = 0;
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this->num_process_switches = 0;
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this->num_thread_switches = 0;
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this->num_fpu_switches = 0;
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this->num_supervisor_calls = 0;
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this->num_ipc_messages = 0;
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this->is_signaled = false;
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this->attached_object = nullptr;
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this->exception_thread = nullptr;
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this->is_suspended = false;
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this->memory_release_hint = 0;
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this->schedule_count = 0;
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/* We're initialized! */
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this->is_initialized = true;
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return ResultSuccess();
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}
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Result KProcess::Initialize(const ams::svc::CreateProcessParameter ¶ms, const KPageGroup &pg, const u32 *caps, s32 num_caps, KResourceLimit *res_limit, KMemoryManager::Pool pool) {
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MESOSPHERE_ASSERT_THIS();
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MESOSPHERE_ASSERT(res_limit != nullptr);
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MESOSPHERE_ABORT_UNLESS((params.code_num_pages * PageSize) / PageSize == static_cast<size_t>(params.code_num_pages));
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/* Set members. */
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this->memory_pool = pool;
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this->resource_limit = res_limit;
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this->system_resource_address = Null<KVirtualAddress>;
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this->system_resource_num_pages = 0;
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/* Setup page table. */
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/* NOTE: Nintendo passes process ID despite not having set it yet. */
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/* This goes completely unused, but even so... */
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{
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const auto as_type = static_cast<ams::svc::CreateProcessFlag>(params.flags & ams::svc::CreateProcessFlag_AddressSpaceMask);
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const bool enable_aslr = (params.flags & ams::svc::CreateProcessFlag_EnableAslr);
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const bool is_app = (params.flags & ams::svc::CreateProcessFlag_IsApplication);
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auto *mem_block_manager = std::addressof(is_app ? Kernel::GetApplicationMemoryBlockManager() : Kernel::GetSystemMemoryBlockManager());
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auto *block_info_manager = std::addressof(Kernel::GetBlockInfoManager());
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auto *pt_manager = std::addressof(Kernel::GetPageTableManager());
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R_TRY(this->page_table.Initialize(this->process_id, as_type, enable_aslr, !enable_aslr, pool, params.code_address, params.code_num_pages * PageSize, mem_block_manager, block_info_manager, pt_manager));
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}
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auto pt_guard = SCOPE_GUARD { this->page_table.Finalize(); };
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/* Ensure we can insert the code region. */
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R_UNLESS(this->page_table.CanContain(params.code_address, params.code_num_pages * PageSize, KMemoryState_Code), svc::ResultInvalidMemoryRegion());
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/* Map the code region. */
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R_TRY(this->page_table.MapPageGroup(params.code_address, pg, KMemoryState_Code, KMemoryPermission_KernelRead));
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/* Initialize capabilities. */
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R_TRY(this->capabilities.Initialize(caps, num_caps, std::addressof(this->page_table)));
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/* Initialize the process id. */
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this->process_id = g_initial_process_id++;
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MESOSPHERE_ABORT_UNLESS(InitialProcessIdMin <= this->process_id);
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MESOSPHERE_ABORT_UNLESS(this->process_id <= InitialProcessIdMax);
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/* Initialize the rest of the process. */
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R_TRY(this->Initialize(params));
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/* Open a reference to the resource limit. */
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this->resource_limit->Open();
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/* We succeeded! */
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pt_guard.Cancel();
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return ResultSuccess();
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}
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Result KProcess::Initialize(const ams::svc::CreateProcessParameter ¶ms, svc::KUserPointer<const u32 *> user_caps, s32 num_caps, KResourceLimit *res_limit, KMemoryManager::Pool pool) {
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MESOSPHERE_ASSERT_THIS();
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MESOSPHERE_ASSERT(res_limit != nullptr);
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/* Set pool and resource limit. */
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this->memory_pool = pool;
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this->resource_limit = res_limit;
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/* Get the memory sizes. */
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const size_t code_num_pages = params.code_num_pages;
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const size_t system_resource_num_pages = params.system_resource_num_pages;
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const size_t code_size = code_num_pages * PageSize;
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const size_t system_resource_size = system_resource_num_pages * PageSize;
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/* Reserve memory for the system resource. */
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KScopedResourceReservation memory_reservation(this, ams::svc::LimitableResource_PhysicalMemoryMax, code_size + KSystemControl::CalculateRequiredSecureMemorySize(system_resource_size, pool));
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R_UNLESS(memory_reservation.Succeeded(), svc::ResultLimitReached());
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/* Setup page table resource objects. */
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KMemoryBlockSlabManager *mem_block_manager;
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KBlockInfoManager *block_info_manager;
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KPageTableManager *pt_manager;
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this->system_resource_address = Null<KVirtualAddress>;
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this->system_resource_num_pages = 0;
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if (system_resource_num_pages != 0) {
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/* Allocate secure memory. */
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R_TRY(KSystemControl::AllocateSecureMemory(std::addressof(this->system_resource_address), system_resource_size, pool));
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/* Set the number of system resource pages. */
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MESOSPHERE_ASSERT(this->system_resource_address != Null<KVirtualAddress>);
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this->system_resource_num_pages = system_resource_num_pages;
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/* Initialize managers. */
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const size_t rc_size = util::AlignUp(KPageTableManager::CalculateReferenceCountSize(system_resource_size), PageSize);
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this->dynamic_page_manager.Initialize(this->system_resource_address + rc_size, system_resource_size - rc_size);
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this->page_table_manager.Initialize(std::addressof(this->dynamic_page_manager), GetPointer<KPageTableManager::RefCount>(this->system_resource_address));
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this->memory_block_slab_manager.Initialize(std::addressof(this->dynamic_page_manager));
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this->block_info_manager.Initialize(std::addressof(this->dynamic_page_manager));
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mem_block_manager = std::addressof(this->memory_block_slab_manager);
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block_info_manager = std::addressof(this->block_info_manager);
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pt_manager = std::addressof(this->page_table_manager);
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} else {
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const bool is_app = (params.flags & ams::svc::CreateProcessFlag_IsApplication);
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mem_block_manager = std::addressof(is_app ? Kernel::GetApplicationMemoryBlockManager() : Kernel::GetSystemMemoryBlockManager());
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block_info_manager = std::addressof(Kernel::GetBlockInfoManager());
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pt_manager = std::addressof(Kernel::GetPageTableManager());
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}
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/* Ensure we don't leak any secure memory we allocated. */
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auto sys_resource_guard = SCOPE_GUARD {
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if (this->system_resource_address != Null<KVirtualAddress>) {
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/* Check that we have no outstanding allocations. */
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MESOSPHERE_ABORT_UNLESS(this->memory_block_slab_manager.GetUsed() == 0);
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MESOSPHERE_ABORT_UNLESS(this->block_info_manager.GetUsed() == 0);
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MESOSPHERE_ABORT_UNLESS(this->page_table_manager.GetUsed() == 0);
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/* Free the memory. */
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KSystemControl::FreeSecureMemory(this->system_resource_address, system_resource_size, pool);
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/* Clear our tracking variables. */
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this->system_resource_address = Null<KVirtualAddress>;
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this->system_resource_num_pages = 0;
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}
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};
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/* Setup page table. */
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/* NOTE: Nintendo passes process ID despite not having set it yet. */
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/* This goes completely unused, but even so... */
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{
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const auto as_type = static_cast<ams::svc::CreateProcessFlag>(params.flags & ams::svc::CreateProcessFlag_AddressSpaceMask);
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const bool enable_aslr = (params.flags & ams::svc::CreateProcessFlag_EnableAslr);
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R_TRY(this->page_table.Initialize(this->process_id, as_type, enable_aslr, !enable_aslr, pool, params.code_address, code_size, mem_block_manager, block_info_manager, pt_manager));
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}
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auto pt_guard = SCOPE_GUARD { this->page_table.Finalize(); };
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/* Ensure we can insert the code region. */
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R_UNLESS(this->page_table.CanContain(params.code_address, code_size, KMemoryState_Code), svc::ResultInvalidMemoryRegion());
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/* Map the code region. */
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R_TRY(this->page_table.MapPages(params.code_address, code_num_pages, KMemoryState_Code, static_cast<KMemoryPermission>(KMemoryPermission_KernelRead | KMemoryPermission_NotMapped)));
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/* Initialize capabilities. */
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R_TRY(this->capabilities.Initialize(user_caps, num_caps, std::addressof(this->page_table)));
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/* Initialize the process id. */
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this->process_id = g_process_id++;
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MESOSPHERE_ABORT_UNLESS(ProcessIdMin <= this->process_id);
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MESOSPHERE_ABORT_UNLESS(this->process_id <= ProcessIdMax);
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/* If we should optimize memory allocations, do so. */
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if (this->system_resource_address != Null<KVirtualAddress> && (params.flags & ams::svc::CreateProcessFlag_OptimizeMemoryAllocation) != 0) {
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R_TRY(Kernel::GetMemoryManager().InitializeOptimizedMemory(this->process_id, pool));
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}
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/* Initialize the rest of the process. */
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R_TRY(this->Initialize(params));
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/* Open a reference to the resource limit. */
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this->resource_limit->Open();
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/* We succeeded, so commit our memory reservation and cancel our guards. */
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sys_resource_guard.Cancel();
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pt_guard.Cancel();
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memory_reservation.Commit();
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return ResultSuccess();
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}
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void KProcess::DoWorkerTask() {
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/* Terminate child threads. */
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TerminateChildren(this, nullptr);
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/* Call the debug callback. */
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KDebug::OnExitProcess(this);
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/* Finish termination. */
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this->FinishTermination();
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}
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void KProcess::StartTermination() {
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/* Terminate child threads other than the current one. */
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TerminateChildren(this, GetCurrentThreadPointer());
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/* Finalize the handle tahble. */
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this->handle_table.Finalize();
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}
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void KProcess::FinishTermination() {
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/* Release resource limit hint. */
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if (this->resource_limit != nullptr) {
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this->memory_release_hint = this->GetUsedUserPhysicalMemorySize();
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this->resource_limit->Release(ams::svc::LimitableResource_PhysicalMemoryMax, 0, this->memory_release_hint);
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}
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/* Change state. */
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{
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KScopedSchedulerLock sl;
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this->ChangeState(State_Terminated);
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}
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/* Close. */
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this->Close();
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}
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void KProcess::Exit() {
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MESOSPHERE_ASSERT_THIS();
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/* Determine whether we need to start terminating */
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bool needs_terminate = false;
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{
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KScopedLightLock lk(this->state_lock);
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KScopedSchedulerLock sl;
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MESOSPHERE_ASSERT(this->state != State_Created);
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MESOSPHERE_ASSERT(this->state != State_CreatedAttached);
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MESOSPHERE_ASSERT(this->state != State_Crashed);
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MESOSPHERE_ASSERT(this->state != State_Terminated);
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if (this->state == State_Running || this->state == State_RunningAttached || this->state == State_DebugBreak) {
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this->ChangeState(State_Terminating);
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needs_terminate = true;
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}
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}
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/* If we need to start termination, do so. */
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if (needs_terminate) {
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this->StartTermination();
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|
|
/* Note for debug that we're exiting the process. */
|
|
MESOSPHERE_LOG("KProcess::Exit() pid=%ld name=%-12s\n", this->process_id, this->name);
|
|
|
|
/* Register the process as a work task. */
|
|
KWorkerTaskManager::AddTask(KWorkerTaskManager::WorkerType_Exit, this);
|
|
}
|
|
|
|
/* Exit the current thread. */
|
|
GetCurrentThread().Exit();
|
|
MESOSPHERE_PANIC("Thread survived call to exit");
|
|
}
|
|
|
|
Result KProcess::Terminate() {
|
|
MESOSPHERE_ASSERT_THIS();
|
|
|
|
/* Determine whether we need to start terminating */
|
|
bool needs_terminate = false;
|
|
{
|
|
KScopedLightLock lk(this->state_lock);
|
|
|
|
/* Check whether we're allowed to terminate. */
|
|
R_UNLESS(this->state != State_Created, svc::ResultInvalidState());
|
|
R_UNLESS(this->state != State_CreatedAttached, svc::ResultInvalidState());
|
|
|
|
KScopedSchedulerLock sl;
|
|
|
|
if (this->state == State_Running || this->state == State_RunningAttached || this->state == State_Crashed || this->state == State_DebugBreak) {
|
|
this->ChangeState(State_Terminating);
|
|
needs_terminate = true;
|
|
}
|
|
}
|
|
|
|
/* If we need to terminate, do so. */
|
|
if (needs_terminate) {
|
|
/* Start termination. */
|
|
this->StartTermination();
|
|
|
|
/* Note for debug that we're terminating the process. */
|
|
MESOSPHERE_LOG("KProcess::Terminate() pid=%ld name=%-12s\n", this->process_id, this->name);
|
|
|
|
/* Call the debug callback. */
|
|
KDebug::OnTerminateProcess(this);
|
|
|
|
/* Finish termination. */
|
|
this->FinishTermination();
|
|
}
|
|
|
|
return ResultSuccess();
|
|
}
|
|
|
|
Result KProcess::AddSharedMemory(KSharedMemory *shmem, KProcessAddress address, size_t size) {
|
|
/* Lock ourselves, to prevent concurrent access. */
|
|
KScopedLightLock lk(this->state_lock);
|
|
|
|
/* Try to find an existing info for the memory. */
|
|
KSharedMemoryInfo *info = nullptr;
|
|
for (auto it = this->shared_memory_list.begin(); it != this->shared_memory_list.end(); ++it) {
|
|
if (it->GetSharedMemory() == shmem) {
|
|
info = std::addressof(*it);
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* If we didn't find an info, create one. */
|
|
if (info == nullptr) {
|
|
/* Allocate a new info. */
|
|
info = KSharedMemoryInfo::Allocate();
|
|
R_UNLESS(info != nullptr, svc::ResultOutOfResource());
|
|
|
|
/* Initialize the info and add it to our list. */
|
|
info->Initialize(shmem);
|
|
this->shared_memory_list.push_back(*info);
|
|
}
|
|
|
|
/* Open a reference to the shared memory and its info. */
|
|
shmem->Open();
|
|
info->Open();
|
|
|
|
return ResultSuccess();
|
|
}
|
|
|
|
void KProcess::RemoveSharedMemory(KSharedMemory *shmem, KProcessAddress address, size_t size) {
|
|
/* Lock ourselves, to prevent concurrent access. */
|
|
KScopedLightLock lk(this->state_lock);
|
|
|
|
/* Find an existing info for the memory. */
|
|
KSharedMemoryInfo *info = nullptr;
|
|
auto it = this->shared_memory_list.begin();
|
|
for (/* ... */; it != this->shared_memory_list.end(); ++it) {
|
|
if (it->GetSharedMemory() == shmem) {
|
|
info = std::addressof(*it);
|
|
break;
|
|
}
|
|
}
|
|
MESOSPHERE_ABORT_UNLESS(info != nullptr);
|
|
|
|
/* Close a reference to the info and its memory. */
|
|
if (info->Close()) {
|
|
this->shared_memory_list.erase(it);
|
|
KSharedMemoryInfo::Free(info);
|
|
}
|
|
|
|
shmem->Close();
|
|
}
|
|
|
|
Result KProcess::CreateThreadLocalRegion(KProcessAddress *out) {
|
|
KThreadLocalPage *tlp = nullptr;
|
|
KProcessAddress tlr = Null<KProcessAddress>;
|
|
|
|
/* See if we can get a region from a partially used TLP. */
|
|
{
|
|
KScopedSchedulerLock sl;
|
|
|
|
if (auto it = this->partially_used_tlp_tree.begin(); it != partially_used_tlp_tree.end()) {
|
|
tlr = it->Reserve();
|
|
MESOSPHERE_ABORT_UNLESS(tlr != Null<KProcessAddress>);
|
|
|
|
if (it->IsAllUsed()) {
|
|
tlp = std::addressof(*it);
|
|
this->partially_used_tlp_tree.erase(it);
|
|
this->fully_used_tlp_tree.insert(*tlp);
|
|
}
|
|
|
|
*out = tlr;
|
|
return ResultSuccess();
|
|
}
|
|
}
|
|
|
|
/* Allocate a new page. */
|
|
tlp = KThreadLocalPage::Allocate();
|
|
R_UNLESS(tlp != nullptr, svc::ResultOutOfMemory());
|
|
auto tlp_guard = SCOPE_GUARD { KThreadLocalPage::Free(tlp); };
|
|
|
|
/* Initialize the new page. */
|
|
R_TRY(tlp->Initialize(this));
|
|
|
|
/* Reserve a TLR. */
|
|
tlr = tlp->Reserve();
|
|
MESOSPHERE_ABORT_UNLESS(tlr != Null<KProcessAddress>);
|
|
|
|
/* Insert into our tree. */
|
|
{
|
|
KScopedSchedulerLock sl;
|
|
if (tlp->IsAllUsed()) {
|
|
this->fully_used_tlp_tree.insert(*tlp);
|
|
} else {
|
|
this->partially_used_tlp_tree.insert(*tlp);
|
|
}
|
|
}
|
|
|
|
/* We succeeded! */
|
|
tlp_guard.Cancel();
|
|
*out = tlr;
|
|
return ResultSuccess();
|
|
}
|
|
|
|
Result KProcess::DeleteThreadLocalRegion(KProcessAddress addr) {
|
|
KThreadLocalPage *page_to_free = nullptr;
|
|
|
|
/* Release the region. */
|
|
{
|
|
KScopedSchedulerLock sl;
|
|
|
|
/* Try to find the page in the partially used list. */
|
|
auto it = this->partially_used_tlp_tree.find(KThreadLocalPage(util::AlignDown(GetInteger(addr), PageSize)));
|
|
if (it == this->partially_used_tlp_tree.end()) {
|
|
/* If we don't find it, it has to be in the fully used list. */
|
|
it = this->fully_used_tlp_tree.find(KThreadLocalPage(util::AlignDown(GetInteger(addr), PageSize)));
|
|
R_UNLESS(it != this->fully_used_tlp_tree.end(), svc::ResultInvalidAddress());
|
|
|
|
/* Release the region. */
|
|
it->Release(addr);
|
|
|
|
/* Move the page out of the fully used list. */
|
|
KThreadLocalPage *tlp = std::addressof(*it);
|
|
this->fully_used_tlp_tree.erase(it);
|
|
if (tlp->IsAllFree()) {
|
|
page_to_free = tlp;
|
|
} else {
|
|
this->partially_used_tlp_tree.insert(*tlp);
|
|
}
|
|
} else {
|
|
/* Release the region. */
|
|
it->Release(addr);
|
|
|
|
/* Handle the all-free case. */
|
|
KThreadLocalPage *tlp = std::addressof(*it);
|
|
if (tlp->IsAllFree()) {
|
|
this->partially_used_tlp_tree.erase(it);
|
|
page_to_free = tlp;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* If we should free the page it was in, do so. */
|
|
if (page_to_free != nullptr) {
|
|
page_to_free->Finalize();
|
|
|
|
KThreadLocalPage::Free(page_to_free);
|
|
}
|
|
|
|
return ResultSuccess();
|
|
}
|
|
|
|
void *KProcess::GetThreadLocalRegionPointer(KProcessAddress addr) {
|
|
KThreadLocalPage *tlp = nullptr;
|
|
{
|
|
KScopedSchedulerLock sl;
|
|
if (auto it = this->partially_used_tlp_tree.find(KThreadLocalPage(util::AlignDown(GetInteger(addr), PageSize))); it != this->partially_used_tlp_tree.end()) {
|
|
tlp = std::addressof(*it);
|
|
} else if (auto it = this->fully_used_tlp_tree.find(KThreadLocalPage(util::AlignDown(GetInteger(addr), PageSize))); it != this->fully_used_tlp_tree.end()) {
|
|
tlp = std::addressof(*it);
|
|
} else {
|
|
return nullptr;
|
|
}
|
|
}
|
|
return static_cast<u8 *>(tlp->GetPointer()) + (GetInteger(addr) & (PageSize - 1));
|
|
}
|
|
|
|
bool KProcess::ReserveResource(ams::svc::LimitableResource which, s64 value) {
|
|
if (KResourceLimit *rl = this->GetResourceLimit(); rl != nullptr) {
|
|
return rl->Reserve(which, value);
|
|
} else {
|
|
return true;
|
|
}
|
|
}
|
|
|
|
bool KProcess::ReserveResource(ams::svc::LimitableResource which, s64 value, s64 timeout) {
|
|
if (KResourceLimit *rl = this->GetResourceLimit(); rl != nullptr) {
|
|
return rl->Reserve(which, value, timeout);
|
|
} else {
|
|
return true;
|
|
}
|
|
}
|
|
|
|
void KProcess::ReleaseResource(ams::svc::LimitableResource which, s64 value) {
|
|
if (KResourceLimit *rl = this->GetResourceLimit(); rl != nullptr) {
|
|
rl->Release(which, value);
|
|
}
|
|
}
|
|
|
|
void KProcess::ReleaseResource(ams::svc::LimitableResource which, s64 value, s64 hint) {
|
|
if (KResourceLimit *rl = this->GetResourceLimit(); rl != nullptr) {
|
|
rl->Release(which, value, hint);
|
|
}
|
|
}
|
|
|
|
void KProcess::IncrementThreadCount() {
|
|
MESOSPHERE_ASSERT(this->num_threads >= 0);
|
|
++this->num_created_threads;
|
|
|
|
if (const auto count = ++this->num_threads; count > this->peak_num_threads) {
|
|
this->peak_num_threads = count;
|
|
}
|
|
}
|
|
|
|
void KProcess::DecrementThreadCount() {
|
|
MESOSPHERE_ASSERT(this->num_threads > 0);
|
|
|
|
if (const auto count = --this->num_threads; count == 0) {
|
|
this->Terminate();
|
|
}
|
|
}
|
|
|
|
bool KProcess::EnterUserException() {
|
|
MESOSPHERE_UNIMPLEMENTED();
|
|
}
|
|
|
|
bool KProcess::LeaveUserException() {
|
|
return this->ReleaseUserException(GetCurrentThreadPointer());
|
|
}
|
|
|
|
bool KProcess::ReleaseUserException(KThread *thread) {
|
|
KScopedSchedulerLock sl;
|
|
|
|
if (this->exception_thread == thread) {
|
|
/* TODO */
|
|
MESOSPHERE_UNIMPLEMENTED();
|
|
} else {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
void KProcess::RegisterThread(KThread *thread) {
|
|
KScopedLightLock lk(this->list_lock);
|
|
|
|
this->thread_list.push_back(*thread);
|
|
}
|
|
|
|
void KProcess::UnregisterThread(KThread *thread) {
|
|
KScopedLightLock lk(this->list_lock);
|
|
|
|
this->thread_list.erase(this->thread_list.iterator_to(*thread));
|
|
}
|
|
|
|
size_t KProcess::GetUsedUserPhysicalMemorySize() const {
|
|
const size_t norm_size = this->page_table.GetNormalMemorySize();
|
|
const size_t other_size = this->code_size + this->main_thread_stack_size;
|
|
const size_t sec_size = KSystemControl::CalculateRequiredSecureMemorySize(this->system_resource_num_pages * PageSize, this->memory_pool);
|
|
|
|
return norm_size + other_size + sec_size;
|
|
}
|
|
|
|
size_t KProcess::GetTotalUserPhysicalMemorySize() const {
|
|
/* Get the amount of free and used size. */
|
|
const size_t free_size = this->resource_limit->GetFreeValue(ams::svc::LimitableResource_PhysicalMemoryMax);
|
|
const size_t used_size = this->GetUsedNonSystemUserPhysicalMemorySize();
|
|
const size_t max_size = this->max_process_memory;
|
|
|
|
if (used_size + free_size > max_size) {
|
|
return max_size;
|
|
} else {
|
|
return free_size + used_size;
|
|
}
|
|
}
|
|
|
|
size_t KProcess::GetUsedNonSystemUserPhysicalMemorySize() const {
|
|
const size_t norm_size = this->page_table.GetNormalMemorySize();
|
|
const size_t other_size = this->code_size + this->main_thread_stack_size;
|
|
|
|
return norm_size + other_size;
|
|
}
|
|
|
|
size_t KProcess::GetTotalNonSystemUserPhysicalMemorySize() const {
|
|
/* Get the amount of free and used size. */
|
|
const size_t free_size = this->resource_limit->GetFreeValue(ams::svc::LimitableResource_PhysicalMemoryMax);
|
|
const size_t used_size = this->GetUsedUserPhysicalMemorySize();
|
|
const size_t sec_size = KSystemControl::CalculateRequiredSecureMemorySize(this->system_resource_num_pages * PageSize, this->memory_pool);
|
|
const size_t max_size = this->max_process_memory;
|
|
|
|
if (used_size + free_size > max_size) {
|
|
return max_size - sec_size;
|
|
} else {
|
|
return free_size + used_size - sec_size;
|
|
}
|
|
}
|
|
|
|
Result KProcess::Run(s32 priority, size_t stack_size) {
|
|
MESOSPHERE_ASSERT_THIS();
|
|
|
|
/* Lock ourselves, to prevent concurrent access. */
|
|
KScopedLightLock lk(this->state_lock);
|
|
|
|
/* Validate that we're in a state where we can initialize. */
|
|
const auto state = this->state;
|
|
R_UNLESS(state == State_Created || state == State_CreatedAttached, svc::ResultInvalidState());
|
|
|
|
/* Place a tentative reservation of a thread for this process. */
|
|
KScopedResourceReservation thread_reservation(this, ams::svc::LimitableResource_ThreadCountMax);
|
|
R_UNLESS(thread_reservation.Succeeded(), svc::ResultLimitReached());
|
|
|
|
/* Ensure that we haven't already allocated stack. */
|
|
MESOSPHERE_ABORT_UNLESS(this->main_thread_stack_size == 0);
|
|
|
|
/* Ensure that we're allocating a valid stack. */
|
|
stack_size = util::AlignUp(stack_size, PageSize);
|
|
R_UNLESS(stack_size + this->code_size <= this->max_process_memory, svc::ResultOutOfMemory());
|
|
R_UNLESS(stack_size + this->code_size >= this->code_size, svc::ResultOutOfMemory());
|
|
|
|
/* Place a tentative reservation of memory for our new stack. */
|
|
KScopedResourceReservation mem_reservation(this, ams::svc::LimitableResource_PhysicalMemoryMax, stack_size);
|
|
R_UNLESS(mem_reservation.Succeeded(), svc::ResultLimitReached());
|
|
|
|
/* Allocate and map our stack. */
|
|
KProcessAddress stack_top = Null<KProcessAddress>;
|
|
if (stack_size) {
|
|
KProcessAddress stack_bottom;
|
|
R_TRY(this->page_table.MapPages(std::addressof(stack_bottom), stack_size / PageSize, KMemoryState_Stack, KMemoryPermission_UserReadWrite));
|
|
|
|
stack_top = stack_bottom + stack_size;
|
|
this->main_thread_stack_size = stack_size;
|
|
}
|
|
|
|
/* Ensure our stack is safe to clean up on exit. */
|
|
auto stack_guard = SCOPE_GUARD {
|
|
if (this->main_thread_stack_size) {
|
|
MESOSPHERE_R_ABORT_UNLESS(this->page_table.UnmapPages(stack_top - this->main_thread_stack_size, this->main_thread_stack_size / PageSize, KMemoryState_Stack));
|
|
this->main_thread_stack_size = 0;
|
|
}
|
|
};
|
|
|
|
/* Set our maximum heap size. */
|
|
R_TRY(this->page_table.SetMaxHeapSize(this->max_process_memory - (this->main_thread_stack_size + this->code_size)));
|
|
|
|
/* Initialize our handle table. */
|
|
R_TRY(this->handle_table.Initialize(this->capabilities.GetHandleTableSize()));
|
|
auto ht_guard = SCOPE_GUARD { this->handle_table.Finalize(); };
|
|
|
|
/* Create a new thread for the process. */
|
|
KThread *main_thread = KThread::Create();
|
|
R_UNLESS(main_thread != nullptr, svc::ResultOutOfResource());
|
|
auto thread_guard = SCOPE_GUARD { main_thread->Close(); };
|
|
|
|
/* Initialize the thread. */
|
|
R_TRY(KThread::InitializeUserThread(main_thread, reinterpret_cast<KThreadFunction>(GetVoidPointer(this->GetEntryPoint())), 0, stack_top, priority, this->ideal_core_id, this));
|
|
|
|
/* Register the thread, and commit our reservation. */
|
|
KThread::Register(main_thread);
|
|
thread_reservation.Commit();
|
|
|
|
/* Add the thread to our handle table. */
|
|
ams::svc::Handle thread_handle;
|
|
R_TRY(this->handle_table.Add(std::addressof(thread_handle), main_thread));
|
|
|
|
/* Set the thread arguments. */
|
|
main_thread->GetContext().SetArguments(0, thread_handle);
|
|
|
|
/* Update our state. */
|
|
this->ChangeState((state == State_Created) ? State_Running : State_RunningAttached);
|
|
auto state_guard = SCOPE_GUARD { this->ChangeState(state); };
|
|
|
|
/* Run our thread. */
|
|
R_TRY(main_thread->Run());
|
|
|
|
/* We succeeded! Cancel our guards. */
|
|
state_guard.Cancel();
|
|
thread_guard.Cancel();
|
|
ht_guard.Cancel();
|
|
stack_guard.Cancel();
|
|
mem_reservation.Commit();
|
|
|
|
/* Note for debug that we're running a new process. */
|
|
MESOSPHERE_LOG("KProcess::Run() pid=%ld name=%-12s thread=%ld affinity=0x%lx ideal_core=%d active_core=%d\n", this->process_id, this->name, main_thread->GetId(), main_thread->GetAffinityMask().GetAffinityMask(), main_thread->GetIdealCore(), main_thread->GetActiveCore());
|
|
|
|
return ResultSuccess();
|
|
}
|
|
|
|
Result KProcess::Reset() {
|
|
MESOSPHERE_ASSERT_THIS();
|
|
|
|
/* Lock the process and the scheduler. */
|
|
KScopedLightLock lk(this->state_lock);
|
|
KScopedSchedulerLock sl;
|
|
|
|
/* Validate that we're in a state that we can reset. */
|
|
R_UNLESS(this->state != State_Terminated, svc::ResultInvalidState());
|
|
R_UNLESS(this->is_signaled, svc::ResultInvalidState());
|
|
|
|
/* Clear signaled. */
|
|
this->is_signaled = false;
|
|
return ResultSuccess();
|
|
}
|
|
|
|
Result KProcess::SetActivity(ams::svc::ProcessActivity activity) {
|
|
/* Lock ourselves and the scheduler. */
|
|
KScopedLightLock lk(this->state_lock);
|
|
KScopedLightLock list_lk(this->list_lock);
|
|
KScopedSchedulerLock sl;
|
|
|
|
/* Validate our state. */
|
|
R_UNLESS(this->state != State_Terminating, svc::ResultInvalidState());
|
|
R_UNLESS(this->state != State_Terminated, svc::ResultInvalidState());
|
|
|
|
/* Either pause or resume. */
|
|
if (activity == ams::svc::ProcessActivity_Paused) {
|
|
/* Verify that we're not suspended. */
|
|
R_UNLESS(!this->is_suspended, svc::ResultInvalidState());
|
|
|
|
/* Suspend all threads. */
|
|
auto end = this->GetThreadList().end();
|
|
for (auto it = this->GetThreadList().begin(); it != end; ++it) {
|
|
it->RequestSuspend(KThread::SuspendType_Process);
|
|
}
|
|
|
|
/* Set ourselves as suspended. */
|
|
this->SetSuspended(true);
|
|
} else {
|
|
MESOSPHERE_ASSERT(activity == ams::svc::ProcessActivity_Runnable);
|
|
|
|
/* Verify that we're suspended. */
|
|
R_UNLESS(this->is_suspended, svc::ResultInvalidState());
|
|
|
|
/* Resume all threads. */
|
|
auto end = this->GetThreadList().end();
|
|
for (auto it = this->GetThreadList().begin(); it != end; ++it) {
|
|
it->Resume(KThread::SuspendType_Process);
|
|
}
|
|
|
|
/* Set ourselves as resumed. */
|
|
this->SetSuspended(false);
|
|
}
|
|
|
|
return ResultSuccess();
|
|
}
|
|
|
|
Result KProcess::GetThreadList(s32 *out_num_threads, ams::kern::svc::KUserPointer<u64 *> out_thread_ids, s32 max_out_count) {
|
|
/* Lock the list. */
|
|
KScopedLightLock lk(this->list_lock);
|
|
|
|
/* Iterate over the list. */
|
|
s32 count = 0;
|
|
auto end = this->GetThreadList().end();
|
|
for (auto it = this->GetThreadList().begin(); it != end; ++it) {
|
|
/* If we're within array bounds, write the id. */
|
|
if (count < max_out_count) {
|
|
/* Get the thread id. */
|
|
KThread *thread = std::addressof(*it);
|
|
const u64 id = thread->GetId();
|
|
|
|
/* Copy the id to userland. */
|
|
R_TRY(out_thread_ids.CopyArrayElementFrom(std::addressof(id), count));
|
|
}
|
|
|
|
/* Increment the count. */
|
|
++count;
|
|
}
|
|
|
|
/* We successfully iterated the list. */
|
|
*out_num_threads = count;
|
|
return ResultSuccess();
|
|
}
|
|
|
|
KProcess::State KProcess::SetDebugObject(void *debug_object) {
|
|
/* Attaching should only happen to non-null objects while the scheduler is locked. */
|
|
MESOSPHERE_ASSERT(KScheduler::IsSchedulerLockedByCurrentThread());
|
|
MESOSPHERE_ASSERT(debug_object != nullptr);
|
|
|
|
/* Cache our state to return it to the debug object. */
|
|
const auto old_state = this->state;
|
|
|
|
/* Set the object. */
|
|
this->attached_object = debug_object;
|
|
|
|
/* Check that our state is valid for attach. */
|
|
MESOSPHERE_ASSERT(this->state == State_Created || this->state == State_Running || this->state == State_Crashed);
|
|
|
|
/* Update our state. */
|
|
if (this->state != State_DebugBreak) {
|
|
if (this->state == State_Created) {
|
|
this->ChangeState(State_CreatedAttached);
|
|
} else {
|
|
this->ChangeState(State_DebugBreak);
|
|
}
|
|
}
|
|
|
|
return old_state;
|
|
}
|
|
|
|
void KProcess::ClearDebugObject(KProcess::State old_state) {
|
|
/* Detaching from process should only happen while the scheduler is locked. */
|
|
MESOSPHERE_ASSERT(KScheduler::IsSchedulerLockedByCurrentThread());
|
|
|
|
/* Clear the attached object. */
|
|
this->attached_object = nullptr;
|
|
|
|
/* Validate that the process is in an attached state. */
|
|
MESOSPHERE_ASSERT(this->state == State_CreatedAttached || this->state == State_RunningAttached || this->state == State_DebugBreak || this->state == State_Terminating || this->state == State_Terminated);
|
|
|
|
/* Change the state appropriately. */
|
|
if (this->state == State_CreatedAttached) {
|
|
this->ChangeState(State_Created);
|
|
} else if (this->state == State_RunningAttached || this->state == State_DebugBreak) {
|
|
/* Disallow transition back to created from running. */
|
|
if (old_state == State_Created) {
|
|
old_state = State_Running;
|
|
}
|
|
this->ChangeState(old_state);
|
|
}
|
|
}
|
|
|
|
bool KProcess::EnterJitDebug(ams::svc::DebugEvent event, ams::svc::DebugException exception, uintptr_t param1, uintptr_t param2, uintptr_t param3, uintptr_t param4) {
|
|
/* Check that we're the current process. */
|
|
MESOSPHERE_ASSERT_THIS();
|
|
MESOSPHERE_ASSERT(this == GetCurrentProcessPointer());
|
|
|
|
/* If we aren't allowed to enter jit debug, don't. */
|
|
if ((this->flags & ams::svc::CreateProcessFlag_EnableDebug) == 0) {
|
|
return false;
|
|
}
|
|
|
|
/* We're the current process, so we should be some kind of running. */
|
|
MESOSPHERE_ASSERT(this->state != State_Created);
|
|
MESOSPHERE_ASSERT(this->state != State_CreatedAttached);
|
|
MESOSPHERE_ASSERT(this->state != State_Terminated);
|
|
|
|
/* Try to enter JIT debug. */
|
|
while (true) {
|
|
/* Lock ourselves and the scheduler. */
|
|
KScopedLightLock lk(this->state_lock);
|
|
KScopedLightLock list_lk(this->list_lock);
|
|
KScopedSchedulerLock sl;
|
|
|
|
/* If we're attached to a debugger, we're necessarily in debug. */
|
|
if (this->IsAttachedToDebugger()) {
|
|
return true;
|
|
}
|
|
|
|
/* If the current thread is terminating, we can't enter debug. */
|
|
if (GetCurrentThread().IsTerminationRequested()) {
|
|
return false;
|
|
}
|
|
|
|
/* We're not attached to debugger, so check that. */
|
|
MESOSPHERE_ASSERT(this->state != State_RunningAttached);
|
|
MESOSPHERE_ASSERT(this->state != State_DebugBreak);
|
|
|
|
/* If we're terminating, we can't enter debug. */
|
|
if (this->state != State_Running && this->state != State_Crashed) {
|
|
MESOSPHERE_ASSERT(this->state == State_Terminating);
|
|
return false;
|
|
}
|
|
|
|
/* If the current thread is suspended, retry. */
|
|
if (GetCurrentThread().IsSuspended()) {
|
|
continue;
|
|
}
|
|
|
|
/* Suspend all our threads. */
|
|
{
|
|
auto end = this->GetThreadList().end();
|
|
for (auto it = this->GetThreadList().begin(); it != end; ++it) {
|
|
it->RequestSuspend(KThread::SuspendType_Debug);
|
|
}
|
|
}
|
|
|
|
/* Change our state to crashed. */
|
|
this->ChangeState(State_Crashed);
|
|
|
|
/* Enter jit debug. */
|
|
this->is_jit_debug = true;
|
|
this->jit_debug_event_type = event;
|
|
this->jit_debug_exception_type = exception;
|
|
this->jit_debug_params[0] = param1;
|
|
this->jit_debug_params[1] = param2;
|
|
this->jit_debug_params[2] = param3;
|
|
this->jit_debug_params[3] = param4;
|
|
this->jit_debug_thread_id = GetCurrentThread().GetId();
|
|
|
|
/* Exit our retry loop. */
|
|
break;
|
|
}
|
|
|
|
/* Check if our state indicates we're in jit debug. */
|
|
{
|
|
KScopedSchedulerLock sl;
|
|
|
|
if (this->state == State_Running || this->state == State_RunningAttached || this->state == State_Crashed || this->state == State_DebugBreak) {
|
|
return true;
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
KEventInfo *KProcess::GetJitDebugInfo() {
|
|
MESOSPHERE_ASSERT_THIS();
|
|
MESOSPHERE_ASSERT(KScheduler::IsSchedulerLockedByCurrentThread());
|
|
|
|
if (this->is_jit_debug) {
|
|
return KDebugBase::CreateDebugEvent(this->jit_debug_event_type, this->jit_debug_exception_type, this->jit_debug_params[0], this->jit_debug_params[1], this->jit_debug_params[2], this->jit_debug_params[3], this->jit_debug_thread_id);
|
|
} else {
|
|
return nullptr;
|
|
}
|
|
}
|
|
|
|
void KProcess::ClearJitDebugInfo() {
|
|
MESOSPHERE_ASSERT_THIS();
|
|
MESOSPHERE_ASSERT(KScheduler::IsSchedulerLockedByCurrentThread());
|
|
|
|
this->is_jit_debug = false;
|
|
}
|
|
|
|
KProcess *KProcess::GetProcessFromId(u64 process_id) {
|
|
/* Lock the list. */
|
|
KProcess::ListAccessor accessor;
|
|
const auto end = accessor.end();
|
|
|
|
/* Iterate over the list. */
|
|
for (auto it = accessor.begin(); it != end; ++it) {
|
|
/* Get the process. */
|
|
KProcess *process = static_cast<KProcess *>(std::addressof(*it));
|
|
|
|
if (process->GetId() == process_id) {
|
|
if (AMS_LIKELY(process->Open())) {
|
|
return process;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* We failed to find the process. */
|
|
return nullptr;
|
|
}
|
|
|
|
Result KProcess::GetProcessList(s32 *out_num_processes, ams::kern::svc::KUserPointer<u64 *> out_process_ids, s32 max_out_count) {
|
|
/* Lock the list. */
|
|
KProcess::ListAccessor accessor;
|
|
const auto end = accessor.end();
|
|
|
|
/* Iterate over the list. */
|
|
s32 count = 0;
|
|
for (auto it = accessor.begin(); it != end; ++it) {
|
|
/* If we're within array bounds, write the id. */
|
|
if (count < max_out_count) {
|
|
/* Get the process id. */
|
|
KProcess *process = static_cast<KProcess *>(std::addressof(*it));
|
|
const u64 id = process->GetId();
|
|
|
|
/* Copy the id to userland. */
|
|
R_TRY(out_process_ids.CopyArrayElementFrom(std::addressof(id), count));
|
|
}
|
|
|
|
/* Increment the count. */
|
|
++count;
|
|
}
|
|
|
|
/* We successfully iterated the list. */
|
|
*out_num_processes = count;
|
|
return ResultSuccess();
|
|
}
|
|
|
|
}
|