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hle/kernel: Fix data race in GetCurrentHostThreadID
As reported by tsan, host_thread_ids could be read while any of the RegisterHostThread variants were called. To fix this, lock the register mutex when yuzu is running in multicore mode and GetCurrentHostThreadID is called.
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@ -219,6 +219,7 @@ struct KernelCore::Impl {
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return static_cast<u32>(system.GetCpuManager().CurrentCore());
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}
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}
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std::unique_lock lock{register_thread_mutex};
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const auto it = host_thread_ids.find(this_id);
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if (it == host_thread_ids.end()) {
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return Core::INVALID_HOST_THREAD_ID;
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@ -324,7 +325,7 @@ struct KernelCore::Impl {
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std::unordered_map<std::thread::id, u32> host_thread_ids;
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u32 registered_thread_ids{Core::Hardware::NUM_CPU_CORES};
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std::bitset<Core::Hardware::NUM_CPU_CORES> registered_core_threads;
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std::mutex register_thread_mutex;
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mutable std::mutex register_thread_mutex;
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// Kernel memory management
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std::unique_ptr<Memory::MemoryManager> memory_manager;
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