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Refactor SVC handler (#540)

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* Refactor SVC handler

* Get rid of KernelErr

* Split kernel code files into multiple folders
This commit is contained in:
gdkchan 2018-12-18 03:33:36 -02:00 • committed by GitHub
parent 2534a7f10c
commit 0039bb6394
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105 changed files with 1894 additions and 1982 deletions
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70
Ryujinx.HLE/HOS/Kernel/Memory/KSharedMemory.cs Normal file
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using Ryujinx.Common;
using Ryujinx.HLE.HOS.Kernel.Common;
using Ryujinx.HLE.HOS.Kernel.Process;
namespace Ryujinx.HLE.HOS.Kernel.Memory
{
class KSharedMemory
{
private KPageList _pageList;
private long _ownerPid;
private MemoryPermission _ownerPermission;
private MemoryPermission _userPermission;
public KSharedMemory(
KPageList pageList,
long ownerPid,
MemoryPermission ownerPermission,
MemoryPermission userPermission)
{
_pageList = pageList;
_ownerPid = ownerPid;
_ownerPermission = ownerPermission;
_userPermission = userPermission;
}
public KernelResult MapIntoProcess(
KMemoryManager memoryManager,
ulong address,
ulong size,
KProcess process,
MemoryPermission permission)
{
ulong pagesCountRounded = BitUtils.DivRoundUp(size, KMemoryManager.PageSize);
if (_pageList.GetPagesCount() != pagesCountRounded)
{
return KernelResult.InvalidSize;
}
MemoryPermission expectedPermission = process.Pid == _ownerPid
? _ownerPermission
: _userPermission;
if (permission != expectedPermission)
{
return KernelResult.InvalidPermission;
}
return memoryManager.MapPages(address, _pageList, MemoryState.SharedMemory, permission);
}
public KernelResult UnmapFromProcess(
KMemoryManager memoryManager,
ulong address,
ulong size,
KProcess process)
{
ulong pagesCountRounded = BitUtils.DivRoundUp(size, KMemoryManager.PageSize);
if (_pageList.GetPagesCount() != pagesCountRounded)
{
return KernelResult.InvalidSize;
}
return memoryManager.UnmapPages(address, _pageList, MemoryState.SharedMemory);
}
}
}