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Separate guest/host tracking + unaligned protection (#6486)

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* WIP: Separate guest/host tracking + unaligned protection

Allow memory manager to define support for single byte guest tracking

* Formatting

* Improve docs

* Properly handle cases where the address space bits are too low

* Address feedback
This commit is contained in:
riperiperi 2024-03-14 22:38:27 +00:00 • committed by GitHub
parent ce607db944
commit fdd3263e31
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GPG key ID: B5690EEEBB952194
18 changed files with 774 additions and 763 deletions
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20
src/ARMeilleure/Instructions/NativeInterface.cs
View file

@ -91,54 +91,54 @@ namespace ARMeilleure.Instructions
#region "Read"
public static byte ReadByte(ulong address)
{
return GetMemoryManager().ReadTracked<byte>(address);
return GetMemoryManager().ReadGuest<byte>(address);
}
public static ushort ReadUInt16(ulong address)
{
return GetMemoryManager().ReadTracked<ushort>(address);
return GetMemoryManager().ReadGuest<ushort>(address);
}
public static uint ReadUInt32(ulong address)
{
return GetMemoryManager().ReadTracked<uint>(address);
return GetMemoryManager().ReadGuest<uint>(address);
}
public static ulong ReadUInt64(ulong address)
{
return GetMemoryManager().ReadTracked<ulong>(address);
return GetMemoryManager().ReadGuest<ulong>(address);
}
public static V128 ReadVector128(ulong address)
{
return GetMemoryManager().ReadTracked<V128>(address);
return GetMemoryManager().ReadGuest<V128>(address);
}
#endregion
#region "Write"
public static void WriteByte(ulong address, byte value)
{
GetMemoryManager().Write(address, value);
GetMemoryManager().WriteGuest(address, value);
}
public static void WriteUInt16(ulong address, ushort value)
{
GetMemoryManager().Write(address, value);
GetMemoryManager().WriteGuest(address, value);
}
public static void WriteUInt32(ulong address, uint value)
{
GetMemoryManager().Write(address, value);
GetMemoryManager().WriteGuest(address, value);
}
public static void WriteUInt64(ulong address, ulong value)
{
GetMemoryManager().Write(address, value);
GetMemoryManager().WriteGuest(address, value);
}
public static void WriteVector128(ulong address, V128 value)
{
GetMemoryManager().Write(address, value);
GetMemoryManager().WriteGuest(address, value);
}
#endregion

22
src/ARMeilleure/Memory/IMemoryManager.cs
View file

@ -28,6 +28,17 @@ namespace ARMeilleure.Memory
/// <returns>The data</returns>
T ReadTracked<T>(ulong va) where T : unmanaged;
/// <summary>
/// Reads data from CPU mapped memory, from guest code. (with read tracking)
/// </summary>
/// <typeparam name="T">Type of the data being read</typeparam>
/// <param name="va">Virtual address of the data in memory</param>
/// <returns>The data</returns>
T ReadGuest<T>(ulong va) where T : unmanaged
{
return ReadTracked<T>(va);
}
/// <summary>
/// Writes data to CPU mapped memory.
/// </summary>
@ -36,6 +47,17 @@ namespace ARMeilleure.Memory
/// <param name="value">Data to be written</param>
void Write<T>(ulong va, T value) where T : unmanaged;
/// <summary>
/// Writes data to CPU mapped memory, from guest code.
/// </summary>
/// <typeparam name="T">Type of the data being written</typeparam>
/// <param name="va">Virtual address to write the data into</param>
/// <param name="value">Data to be written</param>
void WriteGuest<T>(ulong va, T value) where T : unmanaged
{
Write(va, value);
}
/// <summary>
/// Gets a read-only span of data from CPU mapped memory.
/// </summary>