cf6cd71488
* IPC refactor part 2: Use ReplyAndReceive on HLE services and remove special handling from kernel * Fix for applet transfer memory + some nits * Keep handles if possible to avoid server handle table exhaustion * Fix IPC ZeroFill bug * am: Correctly implement CreateManagedDisplayLayer and implement CreateManagedDisplaySeparableLayer CreateManagedDisplaySeparableLayer is requires since 10.x+ when appletResourceUserId != 0 * Make it exit properly * Make ServiceNotImplementedException show the full message again * Allow yielding execution to avoid starving other threads * Only wait if active * Merge IVirtualMemoryManager and IAddressSpaceManager * Fix Ro loading data from the wrong process Co-authored-by: Thog <me@thog.eu>
71 lines
No EOL
2.2 KiB
C#
71 lines
No EOL
2.2 KiB
C#
using Ryujinx.Common;
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using Ryujinx.HLE.HOS.Kernel.Common;
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using Ryujinx.HLE.HOS.Kernel.Process;
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namespace Ryujinx.HLE.HOS.Kernel.Memory
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{
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class KSharedMemory : KAutoObject
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{
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private readonly KPageList _pageList;
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private readonly long _ownerPid;
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private readonly KMemoryPermission _ownerPermission;
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private readonly KMemoryPermission _userPermission;
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public KSharedMemory(
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KernelContext context,
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KPageList pageList,
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long ownerPid,
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KMemoryPermission ownerPermission,
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KMemoryPermission userPermission) : base(context)
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{
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_pageList = pageList;
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_ownerPid = ownerPid;
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_ownerPermission = ownerPermission;
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_userPermission = userPermission;
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}
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public KernelResult MapIntoProcess(
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KMemoryManager memoryManager,
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ulong address,
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ulong size,
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KProcess process,
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KMemoryPermission permission)
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{
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ulong pagesCountRounded = BitUtils.DivRoundUp(size, KMemoryManager.PageSize);
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if (_pageList.GetPagesCount() != pagesCountRounded)
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{
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return KernelResult.InvalidSize;
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}
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KMemoryPermission expectedPermission = process.Pid == _ownerPid
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? _ownerPermission
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: _userPermission;
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if (permission != expectedPermission)
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{
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return KernelResult.InvalidPermission;
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}
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return memoryManager.MapPages(address, _pageList, MemoryState.SharedMemory, permission);
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}
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public KernelResult UnmapFromProcess(
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KMemoryManager memoryManager,
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ulong address,
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ulong size,
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KProcess process)
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{
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ulong pagesCountRounded = BitUtils.DivRoundUp(size, KMemoryManager.PageSize);
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if (_pageList.GetPagesCount() != pagesCountRounded)
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{
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return KernelResult.InvalidSize;
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}
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return memoryManager.UnmapPages(address, _pageList, MemoryState.SharedMemory);
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}
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}
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} |