forked from Mirror/Ryujinx
0c1ea1212a
* Add initial implementation of the Tamper Machine * Implement Atmosphere opcodes 0, 4 and 9 * Add missing TamperCompilationException class * Implement Atmosphere conditional and loop opcodes 1, 2 and 3 * Inplement input conditional opcode 8 * Add register store opcode A * Implement extended pause/resume opcodes FF0 and FF1 * Implement extended log opcode FFF * Implement extended register conditional opcode C0 * Refactor TamperProgram to an interface * Moved Atmosphere classes to a separate subdirectory * Fix OpProcCtrl class not setting process * Implement extended register save/restore opcodes C1, C2 and C3 * Refactor code emitters to separate classes * Supress memory access errors from the Tamper Machine * Add debug information to tamper register and memory writes * Add block stack check to Atmosphere Cheat compiler * Add handheld input support to Tamper Machine * Fix code styling * Fix build id and cheat case mismatch * Fix invalid immediate size selection * Print build ids of the title * Prevent Tamper Machine from change code regions * Remove Atmosphere namespace * Remove empty cheats from the list * Prevent code modification without disabling the tampering * Fix missing addressing mode in LoadRegisterWithMemory * Fix wrong addressing in RegisterConditional * Add name to the tamper machine thread * Fix code styling
66 lines
No EOL
2.2 KiB
C#
66 lines
No EOL
2.2 KiB
C#
using Ryujinx.Common.Logging;
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using Ryujinx.HLE.Exceptions;
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using Ryujinx.HLE.HOS.Kernel.Process;
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using System.Runtime.CompilerServices;
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namespace Ryujinx.HLE.HOS.Tamper
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{
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class TamperedKProcess : ITamperedProcess
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{
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private KProcess _process;
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public ProcessState State => _process.State;
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public TamperedKProcess(KProcess process)
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{
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this._process = process;
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}
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private void AssertMemoryRegion<T>(ulong va, bool isWrite) where T : unmanaged
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{
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ulong size = (ulong)Unsafe.SizeOf<T>();
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// TODO (Caian): This double check is workaround because CpuMemory.IsRangeMapped reports
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// some addresses as mapped even though they are not, i. e. 4 bytes from 0xffffffffffffff70.
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if (!_process.CpuMemory.IsMapped(va) || !_process.CpuMemory.IsRangeMapped(va, size))
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{
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throw new TamperExecutionException($"Unmapped memory access of {size} bytes at 0x{va:X16}");
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}
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if (!isWrite)
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{
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return;
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}
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// TODO (Caian): It is unknown how PPTC behaves if the tamper modifies memory regions
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// belonging to code. So for now just prevent code tampering.
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if ((va >= _process.MemoryManager.CodeRegionStart) && (va + size <= _process.MemoryManager.CodeRegionEnd))
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{
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throw new CodeRegionTamperedException($"Writing {size} bytes to address 0x{va:X16} alters code");
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}
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}
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public T ReadMemory<T>(ulong va) where T : unmanaged
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{
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AssertMemoryRegion<T>(va, false);
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return _process.CpuMemory.Read<T>(va);
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}
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public void WriteMemory<T>(ulong va, T value) where T : unmanaged
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{
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AssertMemoryRegion<T>(va, true);
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_process.CpuMemory.Write(va, value);
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}
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public void PauseProcess()
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{
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Logger.Warning?.Print(LogClass.TamperMachine, "Process pausing is not supported!");
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}
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public void ResumeProcess()
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{
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Logger.Warning?.Print(LogClass.TamperMachine, "Process resuming is not supported!");
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}
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}
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} |