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https://github.com/Lime3DS/Lime3DS.git
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Merge pull request #2196 from Subv/system_mode
Kernel/Loader: Grab the system mode from the NCCH ExHeader.
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commit
3174bfd50c
@ -129,15 +129,22 @@ int main(int argc, char** argv) {
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std::unique_ptr<EmuWindow_SDL2> emu_window = std::make_unique<EmuWindow_SDL2>();
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System::Init(emu_window.get());
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SCOPE_EXIT({ System::Shutdown(); });
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std::unique_ptr<Loader::AppLoader> loader = Loader::GetLoader(boot_filename);
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if (!loader) {
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LOG_CRITICAL(Frontend, "Failed to obtain loader for %s!", boot_filename.c_str());
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return -1;
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}
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boost::optional<u32> system_mode = loader->LoadKernelSystemMode();
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if (!system_mode) {
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LOG_CRITICAL(Frontend, "Failed to load ROM (Could not determine system mode)!");
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return -1;
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}
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System::Init(emu_window.get(), system_mode.get());
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SCOPE_EXIT({ System::Shutdown(); });
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Loader::ResultStatus load_result = loader->Load();
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if (Loader::ResultStatus::Success != load_result) {
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LOG_CRITICAL(Frontend, "Failed to load ROM (Error %i)!", load_result);
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@ -253,7 +253,7 @@ void GMainWindow::OnDisplayTitleBars(bool show) {
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}
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}
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bool GMainWindow::InitializeSystem() {
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bool GMainWindow::InitializeSystem(u32 system_mode) {
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// Shutdown previous session if the emu thread is still active...
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if (emu_thread != nullptr)
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ShutdownGame();
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@ -270,7 +270,7 @@ bool GMainWindow::InitializeSystem() {
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}
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// Initialize the core emulation
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System::Result system_result = System::Init(render_window);
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System::Result system_result = System::Init(render_window, system_mode);
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if (System::Result::Success != system_result) {
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switch (system_result) {
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case System::Result::ErrorInitVideoCore:
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@ -299,8 +299,20 @@ bool GMainWindow::LoadROM(const std::string& filename) {
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return false;
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}
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boost::optional<u32> system_mode = app_loader->LoadKernelSystemMode();
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if (!system_mode) {
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LOG_CRITICAL(Frontend, "Failed to load ROM!");
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QMessageBox::critical(this, tr("Error while loading ROM!"),
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tr("Could not determine the system mode."));
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return false;
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}
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if (!InitializeSystem(system_mode.get()))
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return false;
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Loader::ResultStatus result = app_loader->Load();
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if (Loader::ResultStatus::Success != result) {
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System::Shutdown();
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LOG_CRITICAL(Frontend, "Failed to load ROM!");
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switch (result) {
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@ -338,14 +350,9 @@ void GMainWindow::BootGame(const std::string& filename) {
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LOG_INFO(Frontend, "Citra starting...");
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StoreRecentFile(filename); // Put the filename on top of the list
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if (!InitializeSystem())
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if (!LoadROM(filename))
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return;
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if (!LoadROM(filename)) {
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System::Shutdown();
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return;
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}
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// Create and start the emulation thread
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emu_thread = std::make_unique<EmuThread>(render_window);
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emit EmulationStarting(emu_thread.get());
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@ -60,7 +60,12 @@ signals:
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void EmulationStopping();
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private:
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bool InitializeSystem();
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/**
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* Initializes the emulation system.
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* @param system_mode The system mode with which to intialize the kernel.
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* @returns Whether the system was properly initialized.
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*/
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bool InitializeSystem(u32 system_mode);
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bool LoadROM(const std::string& filename);
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void BootGame(const std::string& filename);
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void ShutdownGame();
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@ -124,13 +124,11 @@ void HandleTable::Clear() {
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}
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/// Initialize the kernel
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void Init() {
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void Init(u32 system_mode) {
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ConfigMem::Init();
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SharedPage::Init();
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// TODO(yuriks): The memory type parameter needs to be determined by the ExHeader field instead
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// For now it defaults to the one with a largest allocation to the app
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Kernel::MemoryInit(2); // Allocates 96MB to the application
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Kernel::MemoryInit(system_mode);
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Kernel::ResourceLimitsInit();
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Kernel::ThreadingInit();
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@ -286,8 +286,8 @@ private:
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extern HandleTable g_handle_table;
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/// Initialize the kernel
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void Init();
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/// Initialize the kernel with the specified system mode.
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void Init(u32 system_mode);
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/// Shutdown the kernel
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void Shutdown();
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@ -9,6 +9,7 @@
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#include <memory>
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#include <string>
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#include <vector>
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#include <boost/optional.hpp>
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#include "common/common_types.h"
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#include "common/file_util.h"
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@ -95,6 +96,17 @@ public:
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*/
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virtual ResultStatus Load() = 0;
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/**
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* Loads the system mode that this application needs.
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* This function defaults to 2 (96MB allocated to the application) if it can't read the
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* information.
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* @returns Optional with the kernel system mode
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*/
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virtual boost::optional<u32> LoadKernelSystemMode() {
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// 96MB allocated to the application.
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return 2;
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}
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/**
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* Get the code (typically .code section) of the application
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* @param buffer Reference to buffer to store data
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@ -117,6 +117,14 @@ FileType AppLoader_NCCH::IdentifyType(FileUtil::IOFile& file) {
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return FileType::Error;
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}
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boost::optional<u32> AppLoader_NCCH::LoadKernelSystemMode() {
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if (!is_loaded) {
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if (LoadExeFS() != ResultStatus::Success)
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return boost::none;
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}
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return exheader_header.arm11_system_local_caps.system_mode.Value();
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}
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ResultStatus AppLoader_NCCH::LoadExec() {
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using Kernel::SharedPtr;
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using Kernel::CodeSet;
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@ -277,6 +285,8 @@ ResultStatus AppLoader_NCCH::LoadExeFS() {
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LOG_DEBUG(Loader, "Core version: %d", core_version);
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LOG_DEBUG(Loader, "Thread priority: 0x%X", priority);
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LOG_DEBUG(Loader, "Resource limit category: %d", resource_limit_category);
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LOG_DEBUG(Loader, "System Mode: %d",
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exheader_header.arm11_system_local_caps.system_mode);
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if (exheader_header.arm11_system_local_caps.program_id != ncch_header.program_id) {
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LOG_ERROR(Loader, "ExHeader Program ID mismatch: the ROM is probably encrypted.");
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@ -185,6 +185,12 @@ public:
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*/
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ResultStatus Load() override;
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/**
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* Loads the Exheader and returns the system mode for this application.
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* @return Optional with the kernel system mode
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*/
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boost::optional<u32> LoadKernelSystemMode();
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/**
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* Get the code (typically .code section) of the application
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* @param buffer Reference to buffer to store data
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@ -17,12 +17,12 @@ namespace System {
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static bool is_powered_on{false};
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Result Init(EmuWindow* emu_window) {
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Result Init(EmuWindow* emu_window, u32 system_mode) {
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Core::Init();
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CoreTiming::Init();
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Memory::Init();
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HW::Init();
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Kernel::Init();
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Kernel::Init(system_mode);
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HLE::Init();
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if (!VideoCore::Init(emu_window)) {
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return Result::ErrorInitVideoCore;
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@ -15,7 +15,7 @@ enum class Result {
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ErrorInitVideoCore, ///< Something went wrong during video core init
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};
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Result Init(EmuWindow* emu_window);
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Result Init(EmuWindow* emu_window, u32 system_mode);
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bool IsPoweredOn();
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void Shutdown();
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}
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