mirror of
https://github.com/Ryujinx/Ryujinx.git
synced 2024-08-19 15:18:43 +02:00
* Back to the origins: Make memory manager take guest PA rather than host address once again * Direct mapping with alias support on Windows * Fixes and remove more of the emulated shared memory * Linux support * Make shared and transfer memory not depend on SharedMemoryStorage * More efficient view mapping on Windows (no more restricted to 4KB pages at a time) * Handle potential access violations caused by partial unmap * Implement host mapping using shared memory on Linux * Add new GetPhysicalAddressChecked method, used to ensure the virtual address is mapped before address translation Also align GetRef behaviour with software memory manager * We don't need a mirrorable memory block for software memory manager mode * Disable memory aliasing tests while we don't have shared memory support on Mac * Shared memory & SIGBUS handler for macOS * Fix typo + nits + re-enable memory tests * Set MAP_JIT_DARWIN on x86 Mac too * Add back the address space mirror * Only set MAP_JIT_DARWIN if we are mapping as executable * Disable aliasing tests again (still fails on Mac) * Fix UnmapView4KB (by not casting size to int) * Use ref counting on memory blocks to delay closing the shared memory handle until all blocks using it are disposed * Address PR feedback * Make RO hold a reference to the guest process memory manager to avoid early disposal Co-authored-by: nastys <nastys@users.noreply.github.com>
93 lines
3.5 KiB
C#
93 lines
3.5 KiB
C#
using System;
|
|
using System.Runtime.InteropServices;
|
|
|
|
namespace Ryujinx.Memory.WindowsShared
|
|
{
|
|
static class WindowsApi
|
|
{
|
|
public static readonly IntPtr InvalidHandleValue = new IntPtr(-1);
|
|
public static readonly IntPtr CurrentProcessHandle = new IntPtr(-1);
|
|
|
|
[DllImport("kernel32.dll", SetLastError = true)]
|
|
public static extern IntPtr VirtualAlloc(
|
|
IntPtr lpAddress,
|
|
IntPtr dwSize,
|
|
AllocationType flAllocationType,
|
|
MemoryProtection flProtect);
|
|
|
|
[DllImport("KernelBase.dll", SetLastError = true)]
|
|
public static extern IntPtr VirtualAlloc2(
|
|
IntPtr process,
|
|
IntPtr lpAddress,
|
|
IntPtr dwSize,
|
|
AllocationType flAllocationType,
|
|
MemoryProtection flProtect,
|
|
IntPtr extendedParameters,
|
|
ulong parameterCount);
|
|
|
|
[DllImport("kernel32.dll", SetLastError = true)]
|
|
public static extern bool VirtualProtect(
|
|
IntPtr lpAddress,
|
|
IntPtr dwSize,
|
|
MemoryProtection flNewProtect,
|
|
out MemoryProtection lpflOldProtect);
|
|
|
|
[DllImport("kernel32.dll", SetLastError = true)]
|
|
public static extern bool VirtualFree(IntPtr lpAddress, IntPtr dwSize, AllocationType dwFreeType);
|
|
|
|
[DllImport("kernel32.dll", SetLastError = true)]
|
|
public static extern IntPtr CreateFileMapping(
|
|
IntPtr hFile,
|
|
IntPtr lpFileMappingAttributes,
|
|
FileMapProtection flProtect,
|
|
uint dwMaximumSizeHigh,
|
|
uint dwMaximumSizeLow,
|
|
[MarshalAs(UnmanagedType.LPWStr)] string lpName);
|
|
|
|
[DllImport("kernel32.dll", SetLastError = true)]
|
|
public static extern bool CloseHandle(IntPtr hObject);
|
|
|
|
[DllImport("kernel32.dll", SetLastError = true)]
|
|
public static extern IntPtr MapViewOfFile(
|
|
IntPtr hFileMappingObject,
|
|
uint dwDesiredAccess,
|
|
uint dwFileOffsetHigh,
|
|
uint dwFileOffsetLow,
|
|
IntPtr dwNumberOfBytesToMap);
|
|
|
|
[DllImport("KernelBase.dll", SetLastError = true)]
|
|
public static extern IntPtr MapViewOfFile3(
|
|
IntPtr hFileMappingObject,
|
|
IntPtr process,
|
|
IntPtr baseAddress,
|
|
ulong offset,
|
|
IntPtr dwNumberOfBytesToMap,
|
|
ulong allocationType,
|
|
MemoryProtection dwDesiredAccess,
|
|
IntPtr extendedParameters,
|
|
ulong parameterCount);
|
|
|
|
[DllImport("kernel32.dll", SetLastError = true)]
|
|
public static extern bool UnmapViewOfFile(IntPtr lpBaseAddress);
|
|
|
|
[DllImport("KernelBase.dll", SetLastError = true)]
|
|
public static extern bool UnmapViewOfFile2(IntPtr process, IntPtr lpBaseAddress, ulong unmapFlags);
|
|
|
|
[DllImport("kernel32.dll")]
|
|
public static extern uint GetLastError();
|
|
|
|
public static MemoryProtection GetProtection(MemoryPermission permission)
|
|
{
|
|
return permission switch
|
|
{
|
|
MemoryPermission.None => MemoryProtection.NoAccess,
|
|
MemoryPermission.Read => MemoryProtection.ReadOnly,
|
|
MemoryPermission.ReadAndWrite => MemoryProtection.ReadWrite,
|
|
MemoryPermission.ReadAndExecute => MemoryProtection.ExecuteRead,
|
|
MemoryPermission.ReadWriteExecute => MemoryProtection.ExecuteReadWrite,
|
|
MemoryPermission.Execute => MemoryProtection.Execute,
|
|
_ => throw new MemoryProtectionException(permission)
|
|
};
|
|
}
|
|
}
|
|
} |