mirror of https://github.com/yuzu-emu/yuzu.git
89 lines
2.8 KiB
C++
89 lines
2.8 KiB
C++
// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
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// SPDX-License-Identifier: GPL-2.0-or-later
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#pragma once
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#include <mutex>
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#include "core/arm/arm_interface.h"
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#include "core/arm/nce/guest_context.h"
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namespace Core::Memory {
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class Memory;
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}
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namespace Core {
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class System;
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class ArmNce final : public ArmInterface {
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public:
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ArmNce(System& system, bool uses_wall_clock, std::size_t core_index);
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~ArmNce() override;
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void Initialize() override;
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Architecture GetArchitecture() const override {
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return Architecture::AArch64;
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}
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HaltReason RunThread(Kernel::KThread* thread) override;
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HaltReason StepThread(Kernel::KThread* thread) override;
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void GetContext(Kernel::Svc::ThreadContext& ctx) const override;
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void SetContext(const Kernel::Svc::ThreadContext& ctx) override;
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void SetTpidrroEl0(u64 value) override;
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void GetSvcArguments(std::span<uint64_t, 8> args) const override;
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void SetSvcArguments(std::span<const uint64_t, 8> args) override;
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u32 GetSvcNumber() const override;
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void SignalInterrupt(Kernel::KThread* thread) override;
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void ClearInstructionCache() override;
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void InvalidateCacheRange(u64 addr, std::size_t size) override;
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void LockThread(Kernel::KThread* thread) override;
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void UnlockThread(Kernel::KThread* thread) override;
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protected:
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const Kernel::DebugWatchpoint* HaltedWatchpoint() const override {
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return nullptr;
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}
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void RewindBreakpointInstruction() override {}
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private:
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// Assembly definitions.
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static HaltReason ReturnToRunCodeByTrampoline(void* tpidr, GuestContext* ctx,
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u64 trampoline_addr);
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static HaltReason ReturnToRunCodeByExceptionLevelChange(int tid, void* tpidr);
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static void ReturnToRunCodeByExceptionLevelChangeSignalHandler(int sig, void* info,
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void* raw_context);
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static void BreakFromRunCodeSignalHandler(int sig, void* info, void* raw_context);
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static void GuestFaultSignalHandler(int sig, void* info, void* raw_context);
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static void LockThreadParameters(void* tpidr);
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static void UnlockThreadParameters(void* tpidr);
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private:
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// C++ implementation functions for assembly definitions.
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static void* RestoreGuestContext(void* raw_context);
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static void SaveGuestContext(GuestContext* ctx, void* raw_context);
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static bool HandleGuestFault(GuestContext* ctx, void* info, void* raw_context);
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static void HandleHostFault(int sig, void* info, void* raw_context);
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public:
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Core::System& m_system;
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// Members set on initialization.
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std::size_t m_core_index{};
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pid_t m_thread_id{-1};
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// Core context.
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GuestContext m_guest_ctx{};
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Kernel::KThread* m_running_thread{};
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};
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} // namespace Core
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