mirror of
https://github.com/Atmosphere-NX/Atmosphere.git
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339 lines
16 KiB
C++
339 lines
16 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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#pragma once
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#include <mesosphere/kern_common.hpp>
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#include <mesosphere/kern_select_cpu.hpp>
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#include <mesosphere/kern_slab_helpers.hpp>
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#include <mesosphere/kern_k_synchronization_object.hpp>
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#include <mesosphere/kern_k_handle_table.hpp>
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#include <mesosphere/kern_k_thread.hpp>
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#include <mesosphere/kern_k_thread_local_page.hpp>
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#include <mesosphere/kern_k_shared_memory_info.hpp>
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#include <mesosphere/kern_k_worker_task.hpp>
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#include <mesosphere/kern_select_page_table.hpp>
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#include <mesosphere/kern_k_condition_variable.hpp>
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#include <mesosphere/kern_k_address_arbiter.hpp>
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#include <mesosphere/kern_k_capabilities.hpp>
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#include <mesosphere/kern_k_wait_object.hpp>
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#include <mesosphere/kern_k_dynamic_slab_heap.hpp>
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#include <mesosphere/kern_k_page_table_manager.hpp>
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namespace ams::kern {
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class KProcess final : public KAutoObjectWithSlabHeapAndContainer<KProcess, KSynchronizationObject>, public KWorkerTask {
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MESOSPHERE_AUTOOBJECT_TRAITS(KProcess, KSynchronizationObject);
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public:
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enum State {
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State_Created = ams::svc::ProcessState_Created,
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State_CreatedAttached = ams::svc::ProcessState_CreatedAttached,
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State_Running = ams::svc::ProcessState_Running,
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State_Crashed = ams::svc::ProcessState_Crashed,
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State_RunningAttached = ams::svc::ProcessState_RunningAttached,
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State_Terminating = ams::svc::ProcessState_Terminating,
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State_Terminated = ams::svc::ProcessState_Terminated,
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State_DebugBreak = ams::svc::ProcessState_DebugBreak,
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};
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using ThreadList = util::IntrusiveListMemberTraits<&KThread::process_list_node>::ListType;
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static constexpr size_t AslrAlignment = KernelAslrAlignment;
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private:
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using SharedMemoryInfoList = util::IntrusiveListBaseTraits<KSharedMemoryInfo>::ListType;
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using TLPTree = util::IntrusiveRedBlackTreeBaseTraits<KThreadLocalPage>::TreeType<KThreadLocalPage>;
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using TLPIterator = TLPTree::iterator;
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private:
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KProcessPageTable page_table{};
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std::atomic<size_t> used_kernel_memory_size{};
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TLPTree fully_used_tlp_tree{};
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TLPTree partially_used_tlp_tree{};
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s32 ideal_core_id{};
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void *attached_object{};
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KResourceLimit *resource_limit{};
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KVirtualAddress system_resource_address{};
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size_t system_resource_num_pages{};
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size_t memory_release_hint{};
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State state{};
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KLightLock state_lock{};
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KLightLock list_lock{};
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KConditionVariable cond_var{};
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KAddressArbiter address_arbiter{};
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u64 entropy[4]{};
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bool is_signaled{};
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bool is_initialized{};
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bool is_application{};
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char name[13]{};
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std::atomic<u16> num_threads{};
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u16 peak_num_threads{};
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u32 flags{};
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KMemoryManager::Pool memory_pool{};
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s64 schedule_count{};
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KCapabilities capabilities{};
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ams::svc::ProgramId program_id{};
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u64 process_id{};
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s64 creation_time{};
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KProcessAddress code_address{};
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size_t code_size{};
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size_t main_thread_stack_size{};
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size_t max_process_memory{};
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u32 version{};
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KHandleTable handle_table{};
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KProcessAddress plr_address{};
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void *plr_heap_address{};
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KThread *exception_thread{};
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ThreadList thread_list{};
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SharedMemoryInfoList shared_memory_list{};
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bool is_suspended{};
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bool is_jit_debug{};
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ams::svc::DebugEvent jit_debug_event_type{};
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ams::svc::DebugException jit_debug_exception_type{};
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uintptr_t jit_debug_params[4]{};
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u64 jit_debug_thread_id{};
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KWaitObject wait_object{};
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KThread *running_threads[cpu::NumCores]{};
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u64 running_thread_idle_counts[cpu::NumCores]{};
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KThread *pinned_threads[cpu::NumCores]{};
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std::atomic<s32> num_created_threads{};
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std::atomic<s64> cpu_time{};
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std::atomic<s64> num_process_switches{};
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std::atomic<s64> num_thread_switches{};
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std::atomic<s64> num_fpu_switches{};
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std::atomic<s64> num_supervisor_calls{};
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std::atomic<s64> num_ipc_messages{};
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std::atomic<s64> num_ipc_replies{};
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std::atomic<s64> num_ipc_receives{};
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KDynamicPageManager dynamic_page_manager{};
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KMemoryBlockSlabManager memory_block_slab_manager{};
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KBlockInfoManager block_info_manager{};
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KPageTableManager page_table_manager{};
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private:
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Result Initialize(const ams::svc::CreateProcessParameter ¶ms);
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void StartTermination();
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void FinishTermination();
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public:
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KProcess() { /* ... */ }
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virtual ~KProcess() { /* ... */ }
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Result 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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Result Initialize(const ams::svc::CreateProcessParameter ¶ms, svc::KUserPointer<const u32 *> caps, s32 num_caps, KResourceLimit *res_limit, KMemoryManager::Pool pool);
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void Exit();
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constexpr const char *GetName() const { return this->name; }
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constexpr ams::svc::ProgramId GetProgramId() const { return this->program_id; }
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constexpr u64 GetProcessId() const { return this->process_id; }
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constexpr State GetState() const { return this->state; }
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constexpr u64 GetCoreMask() const { return this->capabilities.GetCoreMask(); }
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constexpr u64 GetPriorityMask() const { return this->capabilities.GetPriorityMask(); }
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constexpr s32 GetIdealCoreId() const { return this->ideal_core_id; }
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constexpr void SetIdealCoreId(s32 core_id) { this->ideal_core_id = core_id; }
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constexpr bool CheckThreadPriority(s32 prio) const { return ((1ul << prio) & this->GetPriorityMask()) != 0; }
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constexpr u32 GetCreateProcessFlags() const { return this->flags; }
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constexpr bool Is64Bit() const { return this->flags & ams::svc::CreateProcessFlag_Is64Bit; }
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constexpr KProcessAddress GetEntryPoint() const { return this->code_address; }
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constexpr u64 GetRandomEntropy(size_t i) const { return this->entropy[i]; }
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constexpr bool IsApplication() const { return this->is_application; }
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constexpr bool IsSuspended() const { return this->is_suspended; }
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constexpr void SetSuspended(bool suspended) { this->is_suspended = suspended; }
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Result Terminate();
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constexpr bool IsTerminated() const {
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return this->state == State_Terminated;
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}
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constexpr bool IsAttachedToDebugger() const {
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return this->attached_object != nullptr;
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}
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constexpr bool IsPermittedInterrupt(int32_t interrupt_id) const {
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return this->capabilities.IsPermittedInterrupt(interrupt_id);
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}
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constexpr bool IsPermittedDebug() const {
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return this->capabilities.IsPermittedDebug();
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}
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constexpr bool CanForceDebug() const {
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return this->capabilities.CanForceDebug();
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}
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u32 GetAllocateOption() const { return this->page_table.GetAllocateOption(); }
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ThreadList &GetThreadList() { return this->thread_list; }
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const ThreadList &GetThreadList() const { return this->thread_list; }
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constexpr void *GetDebugObject() const { return this->attached_object; }
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KProcess::State SetDebugObject(void *debug_object);
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void ClearDebugObject(KProcess::State state);
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KEventInfo *GetJitDebugInfo();
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bool EnterUserException();
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bool LeaveUserException();
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bool ReleaseUserException(KThread *thread);
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KThread *GetPinnedThread(s32 core_id) const {
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MESOSPHERE_ASSERT(0 <= core_id && core_id < static_cast<s32>(cpu::NumCores));
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return this->pinned_threads[core_id];
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}
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void CopySvcPermissionsTo(KThread::StackParameters &sp) {
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this->capabilities.CopySvcPermissionsTo(sp);
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}
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constexpr KResourceLimit *GetResourceLimit() const { return this->resource_limit; }
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bool ReserveResource(ams::svc::LimitableResource which, s64 value);
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bool ReserveResource(ams::svc::LimitableResource which, s64 value, s64 timeout);
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void ReleaseResource(ams::svc::LimitableResource which, s64 value);
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void ReleaseResource(ams::svc::LimitableResource which, s64 value, s64 hint);
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constexpr KLightLock &GetStateLock() { return this->state_lock; }
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constexpr KLightLock &GetListLock() { return this->list_lock; }
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constexpr KProcessPageTable &GetPageTable() { return this->page_table; }
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constexpr const KProcessPageTable &GetPageTable() const { return this->page_table; }
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constexpr KHandleTable &GetHandleTable() { return this->handle_table; }
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constexpr const KHandleTable &GetHandleTable() const { return this->handle_table; }
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size_t GetUsedUserPhysicalMemorySize() const;
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size_t GetTotalUserPhysicalMemorySize() const;
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size_t GetUsedNonSystemUserPhysicalMemorySize() const;
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size_t GetTotalNonSystemUserPhysicalMemorySize() const;
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Result AddSharedMemory(KSharedMemory *shmem, KProcessAddress address, size_t size);
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void RemoveSharedMemory(KSharedMemory *shmem, KProcessAddress address, size_t size);
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Result CreateThreadLocalRegion(KProcessAddress *out);
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Result DeleteThreadLocalRegion(KProcessAddress addr);
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void *GetThreadLocalRegionPointer(KProcessAddress addr);
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constexpr KProcessAddress GetProcessLocalRegionAddress() const { return this->plr_address; }
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void AddCpuTime(s64 diff) { this->cpu_time += diff; }
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constexpr s64 GetScheduledCount() const { return this->schedule_count; }
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void IncrementScheduledCount() { ++this->schedule_count; }
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void IncrementThreadCount();
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void DecrementThreadCount();
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size_t GetTotalSystemResourceSize() const { return this->system_resource_num_pages * PageSize; }
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size_t GetUsedSystemResourceSize() const {
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if (this->system_resource_num_pages == 0) {
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return 0;
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}
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return this->dynamic_page_manager.GetUsed() * PageSize;
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}
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void ClearRunningThread(KThread *thread) {
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for (size_t i = 0; i < util::size(this->running_threads); ++i) {
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if (this->running_threads[i] == thread) {
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this->running_threads[i] = nullptr;
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}
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}
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}
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void RegisterThread(KThread *thread);
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void UnregisterThread(KThread *thread);
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Result Run(s32 priority, size_t stack_size);
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Result Reset();
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Result SetActivity(ams::svc::ProcessActivity activity);
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void PinCurrentThread();
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Result SignalToAddress(KProcessAddress address) {
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return this->cond_var.SignalToAddress(address);
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}
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Result WaitForAddress(ams::svc::Handle handle, KProcessAddress address, u32 tag) {
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return this->cond_var.WaitForAddress(handle, address, tag);
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}
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void SignalConditionVariable(uintptr_t cv_key, int32_t count) {
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return this->cond_var.Signal(cv_key, count);
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}
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Result WaitConditionVariable(KProcessAddress address, uintptr_t cv_key, u32 tag, s64 ns) {
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return this->cond_var.Wait(address, cv_key, tag, ns);
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}
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Result SignalAddressArbiter(uintptr_t address, ams::svc::SignalType signal_type, s32 value, s32 count) {
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return this->address_arbiter.SignalToAddress(address, signal_type, value, count);
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}
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Result WaitAddressArbiter(uintptr_t address, ams::svc::ArbitrationType arb_type, s32 value, s64 timeout) {
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return this->address_arbiter.WaitForAddress(address, arb_type, value, timeout);
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}
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static KProcess *GetProcessFromId(u64 process_id);
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static Result GetProcessList(s32 *out_num_processes, ams::kern::svc::KUserPointer<u64 *> out_process_ids, s32 max_out_count);
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static void Switch(KProcess *cur_process, KProcess *next_process) {
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/* Set the current process pointer. */
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SetCurrentProcess(next_process);
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/* Update the current page table. */
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if (next_process) {
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next_process->GetPageTable().Activate(next_process->GetProcessId());
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} else {
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Kernel::GetKernelPageTable().Activate();
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}
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}
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public:
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/* Overridden parent functions. */
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virtual bool IsInitialized() const override { return this->is_initialized; }
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static void PostDestroy(uintptr_t arg) { /* ... */ }
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virtual void Finalize() override;
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virtual u64 GetId() const override { return this->GetProcessId(); }
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virtual bool IsSignaled() const override {
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MESOSPHERE_ASSERT_THIS();
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MESOSPHERE_ASSERT(KScheduler::IsSchedulerLockedByCurrentThread());
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return this->is_signaled;
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}
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virtual void DoWorkerTask() override;
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private:
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void ChangeState(State new_state) {
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if (this->state != new_state) {
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this->state = new_state;
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this->is_signaled = true;
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this->NotifyAvailable();
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}
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}
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};
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}
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