summaryrefslogblamecommitdiffstats
path: root/src/core/hle/kernel/kernel.h
blob: 4449f69493a8fda7a3a704c6356d4948fce71168 (plain) (tree)
1
2
3
4
5
6
7
8
9
10

                                                               


            
                
                     
                 

                        
                 

                                   
                                     

                                          
                                       
 
                
                       
             
                   
 
                        
                 
                 
                           
 



                    



                       

                  
                  
                             
                                   
                     
             
                          
                          
             
                 
                   
                     
                      
                    
                     

                            
                  
                          
            
               
                     
                 
                  
                     
               
                      
                    
                        
                            
              
                       
                      
                         
                  
                   
 



                           


                     


                                               







                                                                     







                                                      


                                                                                    
                                                   
                      
 


                                  


                                                           


                                                                
                                                                         



                                                                         

                                                                                              
                                                                                        
 
                                                                              
                                             
 

                                                            
 

                                                       
 

                                                             
 

                                       
 
                                        
                                                         
 
                                                      
                                                             

                                                      
                                                                         
 
                                                                             
                                                  

                                                                             
                                                              
 





                                                                   


                                                                         
                                                                            
                                           






                                                              

                                                   
 






                                                                          



                                                                    

                                          

                                                                          







                                                                                                 







                                                                                              

                                                                             
 

                                                          
 


                                              
                                            
                                       




                                                             
                                                                
 





                                                                                              


                                                  
                                                       
                                    

                                                       
                                                
 





                                                        

                                               
 

                                                           
 
                                                       
                                             

                                                       
                                                         

                                                        
                                              

                                                        
                                                          

                                                       
                                             

                                                       
                                                         

                                                        
                                              

                                                        
                                                          
 





                                                            

                                              
 

                                             
 


                                               

                             

                                



                           



                                                                           


                                       


                                                                

                                                          
                                                         
                                              
                                                                  
                                                         

                                                        
                                                           


                                                                 

                                                           

                                                                

                                                                    

                                                          

                                                                  

                                                              

                                                                      



                                                                   

                                                              

                                                                  





                                                                        


         





                                                                





                                                                                          


                                              
        
                          
                         




                                                                               



                                                                               

                                                                             
                            
 
                                                        
                                      
 
                                                              
                                                  
 

                               
 
                            

        

                                                                                 
                                                 
                                
                                                    
                              
                                    
                                                 
                                    
                                               
                                                        
                                  
                                                   
                                           
                                                            

                                                      
                                           
                                                   


                                                                


                                                           
  
 
                     
// SPDX-FileCopyrightText: Copyright 2021 yuzu Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later

#pragma once

#include <array>
#include <functional>
#include <memory>
#include <string>
#include <unordered_map>
#include <vector>

#include "common/polyfill_thread.h"
#include "core/hardware_properties.h"
#include "core/hle/kernel/k_auto_object.h"
#include "core/hle/kernel/k_slab_heap.h"
#include "core/hle/kernel/svc_common.h"

namespace Core {
class ExclusiveMonitor;
class System;
} // namespace Core

namespace Core::Timing {
class CoreTiming;
struct EventType;
} // namespace Core::Timing

namespace Service {
class ServerManager;
}

namespace Service::SM {
class ServiceManager;
}

namespace Kernel {

class KClientPort;
class GlobalSchedulerContext;
class KAutoObjectWithListContainer;
class KClientSession;
class KDebug;
class KDeviceAddressSpace;
class KDynamicPageManager;
class KEvent;
class KEventInfo;
class KHandleTable;
class KHardwareTimer;
class KLinkedListNode;
class KMemoryLayout;
class KMemoryManager;
class KObjectName;
class KObjectNameGlobalData;
class KPageBuffer;
class KPageBufferSlabHeap;
class KPort;
class KProcess;
class KResourceLimit;
class KScheduler;
class KServerPort;
class KServerSession;
class KSession;
class KSessionRequest;
class KSharedMemory;
class KSharedMemoryInfo;
class KSecureSystemResource;
class KThread;
class KThreadLocalPage;
class KTransferMemory;
class KWorkerTaskManager;
class KCodeMemory;
class PhysicalCore;

namespace Init {
struct KSlabResourceCounts;
}

template <typename T>
class KSlabHeap;

/// Represents a single instance of the kernel.
class KernelCore {
public:
    /// Constructs an instance of the kernel using the given System
    /// instance as a context for any necessary system-related state,
    /// such as threads, CPU core state, etc.
    ///
    /// @post After execution of the constructor, the provided System
    ///       object *must* outlive the kernel instance itself.
    ///
    explicit KernelCore(Core::System& system);
    ~KernelCore();

    KernelCore(const KernelCore&) = delete;
    KernelCore& operator=(const KernelCore&) = delete;

    KernelCore(KernelCore&&) = delete;
    KernelCore& operator=(KernelCore&&) = delete;

    /// Sets if emulation is multicore or single core, must be set before Initialize
    void SetMulticore(bool is_multicore);

    /// Resets the kernel to a clean slate for use.
    void Initialize();

    /// Initializes the CPU cores.
    void InitializeCores();

    /// Clears all resources in use by the kernel instance.
    void Shutdown();

    /// Close all active services in use by the kernel instance.
    void CloseServices();

    /// Retrieves a shared pointer to the system resource limit instance.
    const KResourceLimit* GetSystemResourceLimit() const;

    /// Retrieves a shared pointer to the system resource limit instance.
    KResourceLimit* GetSystemResourceLimit();

    /// Retrieves a shared pointer to a Thread instance within the thread wakeup handle table.
    KScopedAutoObject<KThread> RetrieveThreadFromGlobalHandleTable(Handle handle) const;

    /// Adds the given shared pointer to an internal list of active processes.
    void AppendNewProcess(KProcess* process);

    /// Makes the given process the new application process.
    void MakeApplicationProcess(KProcess* process);

    /// Retrieves a pointer to the application process.
    KProcess* ApplicationProcess();

    /// Retrieves a const pointer to the application process.
    const KProcess* ApplicationProcess() const;

    /// Closes the application process.
    void CloseApplicationProcess();

    /// Retrieves the list of processes.
    const std::vector<KProcess*>& GetProcessList() const;

    /// Gets the sole instance of the global scheduler
    Kernel::GlobalSchedulerContext& GlobalSchedulerContext();

    /// Gets the sole instance of the global scheduler
    const Kernel::GlobalSchedulerContext& GlobalSchedulerContext() const;

    /// Gets the sole instance of the Scheduler assoviated with cpu core 'id'
    Kernel::KScheduler& Scheduler(std::size_t id);

    /// Gets the sole instance of the Scheduler assoviated with cpu core 'id'
    const Kernel::KScheduler& Scheduler(std::size_t id) const;

    /// Gets the an instance of the respective physical CPU core.
    Kernel::PhysicalCore& PhysicalCore(std::size_t id);

    /// Gets the an instance of the respective physical CPU core.
    const Kernel::PhysicalCore& PhysicalCore(std::size_t id) const;

    /// Gets the current physical core index for the running host thread.
    std::size_t CurrentPhysicalCoreIndex() const;

    /// Gets the sole instance of the Scheduler at the current running core.
    Kernel::KScheduler* CurrentScheduler();

    /// Gets the an instance of the current physical CPU core.
    Kernel::PhysicalCore& CurrentPhysicalCore();

    /// Gets the an instance of the current physical CPU core.
    const Kernel::PhysicalCore& CurrentPhysicalCore() const;

    /// Gets the an instance of the hardware timer.
    Kernel::KHardwareTimer& HardwareTimer();

    /// Stops execution of 'id' core, in order to reschedule a new thread.
    void PrepareReschedule(std::size_t id);

    Core::ExclusiveMonitor& GetExclusiveMonitor();

    const Core::ExclusiveMonitor& GetExclusiveMonitor() const;

    KAutoObjectWithListContainer& ObjectListContainer();

    const KAutoObjectWithListContainer& ObjectListContainer() const;

    void InvalidateAllInstructionCaches();

    void InvalidateCpuInstructionCacheRange(VAddr addr, std::size_t size);

    /// Registers all kernel objects with the global emulation state, this is purely for tracking
    /// leaks after emulation has been shutdown.
    void RegisterKernelObject(KAutoObject* object);

    /// Unregisters a kernel object previously registered with RegisterKernelObject when it was
    /// destroyed during the current emulation session.
    void UnregisterKernelObject(KAutoObject* object);

    /// Registers kernel objects with guest in use state, this is purely for close
    /// after emulation has been shutdown.
    void RegisterInUseObject(KAutoObject* object);

    /// Unregisters a kernel object previously registered with RegisterInUseObject when it was
    /// destroyed during the current emulation session.
    void UnregisterInUseObject(KAutoObject* object);

    // Runs the given server manager until shutdown.
    void RunServer(std::unique_ptr<Service::ServerManager>&& server_manager);

    /// Gets the current host_thread/guest_thread pointer.
    KThread* GetCurrentEmuThread() const;

    /// Sets the current guest_thread pointer.
    void SetCurrentEmuThread(KThread* thread);

    /// Gets the current host_thread handle.
    u32 GetCurrentHostThreadID() const;

    /// Register the current thread as a CPU Core Thread.
    void RegisterCoreThread(std::size_t core_id);

    /// Register the current thread as a non CPU core thread.
    void RegisterHostThread(KThread* existing_thread = nullptr);

    void RunOnGuestCoreProcess(std::string&& process_name, std::function<void()> func);

    std::jthread RunOnHostCoreProcess(std::string&& process_name, std::function<void()> func);

    std::jthread RunOnHostCoreThread(std::string&& thread_name, std::function<void()> func);

    /// Gets global data for KObjectName.
    KObjectNameGlobalData& ObjectNameGlobalData();

    /// Gets the virtual memory manager for the kernel.
    KMemoryManager& MemoryManager();

    /// Gets the virtual memory manager for the kernel.
    const KMemoryManager& MemoryManager() const;

    /// Gets the application resource manager.
    KSystemResource& GetAppSystemResource();

    /// Gets the application resource manager.
    const KSystemResource& GetAppSystemResource() const;

    /// Gets the system resource manager.
    KSystemResource& GetSystemSystemResource();

    /// Gets the system resource manager.
    const KSystemResource& GetSystemSystemResource() const;

    /// Gets the shared memory object for HID services.
    Kernel::KSharedMemory& GetHidSharedMem();

    /// Gets the shared memory object for HID services.
    const Kernel::KSharedMemory& GetHidSharedMem() const;

    /// Gets the shared memory object for font services.
    Kernel::KSharedMemory& GetFontSharedMem();

    /// Gets the shared memory object for font services.
    const Kernel::KSharedMemory& GetFontSharedMem() const;

    /// Gets the shared memory object for IRS services.
    Kernel::KSharedMemory& GetIrsSharedMem();

    /// Gets the shared memory object for IRS services.
    const Kernel::KSharedMemory& GetIrsSharedMem() const;

    /// Gets the shared memory object for Time services.
    Kernel::KSharedMemory& GetTimeSharedMem();

    /// Gets the shared memory object for Time services.
    const Kernel::KSharedMemory& GetTimeSharedMem() const;

    /// Gets the shared memory object for HIDBus services.
    Kernel::KSharedMemory& GetHidBusSharedMem();

    /// Gets the shared memory object for HIDBus services.
    const Kernel::KSharedMemory& GetHidBusSharedMem() const;

    /// Suspend/unsuspend application process.
    void SuspendApplication(bool suspend);

    /// Exceptional exit application process.
    void ExceptionalExitApplication();

    /// Notify emulated CPU cores to shut down.
    void ShutdownCores();

    bool IsMulticore() const;

    bool IsShuttingDown() const;

    void EnterSVCProfile();

    void ExitSVCProfile();

    /// Workaround for single-core mode when preempting threads while idle.
    bool IsPhantomModeForSingleCore() const;
    void SetIsPhantomModeForSingleCore(bool value);

    Core::System& System();
    const Core::System& System() const;

    /// Gets the slab heap for the specified kernel object type.
    template <typename T>
    KSlabHeap<T>& SlabHeap() {
        if constexpr (std::is_same_v<T, KClientSession>) {
            return slab_heap_container->client_session;
        } else if constexpr (std::is_same_v<T, KEvent>) {
            return slab_heap_container->event;
        } else if constexpr (std::is_same_v<T, KLinkedListNode>) {
            return slab_heap_container->linked_list_node;
        } else if constexpr (std::is_same_v<T, KPort>) {
            return slab_heap_container->port;
        } else if constexpr (std::is_same_v<T, KProcess>) {
            return slab_heap_container->process;
        } else if constexpr (std::is_same_v<T, KResourceLimit>) {
            return slab_heap_container->resource_limit;
        } else if constexpr (std::is_same_v<T, KSession>) {
            return slab_heap_container->session;
        } else if constexpr (std::is_same_v<T, KSharedMemory>) {
            return slab_heap_container->shared_memory;
        } else if constexpr (std::is_same_v<T, KSharedMemoryInfo>) {
            return slab_heap_container->shared_memory_info;
        } else if constexpr (std::is_same_v<T, KThread>) {
            return slab_heap_container->thread;
        } else if constexpr (std::is_same_v<T, KTransferMemory>) {
            return slab_heap_container->transfer_memory;
        } else if constexpr (std::is_same_v<T, KCodeMemory>) {
            return slab_heap_container->code_memory;
        } else if constexpr (std::is_same_v<T, KDeviceAddressSpace>) {
            return slab_heap_container->device_address_space;
        } else if constexpr (std::is_same_v<T, KPageBuffer>) {
            return slab_heap_container->page_buffer;
        } else if constexpr (std::is_same_v<T, KThreadLocalPage>) {
            return slab_heap_container->thread_local_page;
        } else if constexpr (std::is_same_v<T, KObjectName>) {
            return slab_heap_container->object_name;
        } else if constexpr (std::is_same_v<T, KSessionRequest>) {
            return slab_heap_container->session_request;
        } else if constexpr (std::is_same_v<T, KSecureSystemResource>) {
            return slab_heap_container->secure_system_resource;
        } else if constexpr (std::is_same_v<T, KEventInfo>) {
            return slab_heap_container->event_info;
        } else if constexpr (std::is_same_v<T, KDebug>) {
            return slab_heap_container->debug;
        }
    }

    /// Gets the current slab resource counts.
    Init::KSlabResourceCounts& SlabResourceCounts();

    /// Gets the current slab resource counts.
    const Init::KSlabResourceCounts& SlabResourceCounts() const;

    /// Gets the current worker task manager, used for dispatching KThread/KProcess tasks.
    KWorkerTaskManager& WorkerTaskManager();

    /// Gets the current worker task manager, used for dispatching KThread/KProcess tasks.
    const KWorkerTaskManager& WorkerTaskManager() const;

    /// Gets the memory layout.
    const KMemoryLayout& MemoryLayout() const;

private:
    friend class KProcess;
    friend class KThread;

    /// Creates a new object ID, incrementing the internal object ID counter.
    u32 CreateNewObjectID();

    /// Creates a new process ID, incrementing the internal process ID counter;
    u64 CreateNewKernelProcessID();

    /// Creates a new process ID, incrementing the internal process ID counter;
    u64 CreateNewUserProcessID();

    /// Creates a new thread ID, incrementing the internal thread ID counter.
    u64 CreateNewThreadID();

    /// Provides a reference to the global handle table.
    KHandleTable& GlobalHandleTable();

    /// Provides a const reference to the global handle table.
    const KHandleTable& GlobalHandleTable() const;

    struct Impl;
    std::unique_ptr<Impl> impl;

    bool exception_exited{};

private:
    /// Helper to encapsulate all slab heaps in a single heap allocated container
    struct SlabHeapContainer {
        KSlabHeap<KClientSession> client_session;
        KSlabHeap<KEvent> event;
        KSlabHeap<KLinkedListNode> linked_list_node;
        KSlabHeap<KPort> port;
        KSlabHeap<KProcess> process;
        KSlabHeap<KResourceLimit> resource_limit;
        KSlabHeap<KSession> session;
        KSlabHeap<KSharedMemory> shared_memory;
        KSlabHeap<KSharedMemoryInfo> shared_memory_info;
        KSlabHeap<KThread> thread;
        KSlabHeap<KTransferMemory> transfer_memory;
        KSlabHeap<KCodeMemory> code_memory;
        KSlabHeap<KDeviceAddressSpace> device_address_space;
        KSlabHeap<KPageBuffer> page_buffer;
        KSlabHeap<KThreadLocalPage> thread_local_page;
        KSlabHeap<KObjectName> object_name;
        KSlabHeap<KSessionRequest> session_request;
        KSlabHeap<KSecureSystemResource> secure_system_resource;
        KSlabHeap<KEventInfo> event_info;
        KSlabHeap<KDebug> debug;
    };

    std::unique_ptr<SlabHeapContainer> slab_heap_container;
};

} // namespace Kernel