48278905d1
* Rewrite scheduler context switch code * Fix race in UnmapIpcRestorePermission * Fix thread exit issue that could leave the scheduler in a invalid state * Change context switch method to not wait on guest thread, remove spin wait, use SignalAndWait to pass control * Remove multi-core setting (it is always on now) * Re-enable assert * Remove multicore from default config and schema * Fix race in KTimeManager
2409 lines
76 KiB
C#
2409 lines
76 KiB
C#
using Ryujinx.Common;
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using Ryujinx.Common.Logging;
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using Ryujinx.Cpu;
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using Ryujinx.HLE.Exceptions;
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using Ryujinx.HLE.HOS.Kernel.Common;
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using Ryujinx.HLE.HOS.Kernel.Ipc;
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using Ryujinx.HLE.HOS.Kernel.Memory;
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using Ryujinx.HLE.HOS.Kernel.Process;
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using Ryujinx.HLE.HOS.Kernel.Threading;
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using Ryujinx.Memory;
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using System;
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using System.Threading;
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namespace Ryujinx.HLE.HOS.Kernel.SupervisorCall
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{
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class Syscall
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{
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private readonly KernelContext _context;
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public Syscall(KernelContext context)
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{
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_context = context;
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}
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// Process
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public KernelResult GetProcessId(int handle, out long pid)
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{
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KProcess currentProcess = KernelStatic.GetCurrentProcess();
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KProcess process = currentProcess.HandleTable.GetKProcess(handle);
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if (process == null)
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{
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KThread thread = currentProcess.HandleTable.GetKThread(handle);
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if (thread != null)
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{
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process = thread.Owner;
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}
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// TODO: KDebugEvent.
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}
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pid = process?.Pid ?? 0;
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return process != null
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? KernelResult.Success
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: KernelResult.InvalidHandle;
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}
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public KernelResult CreateProcess(
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ProcessCreationInfo info,
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ReadOnlySpan<int> capabilities,
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out int handle,
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IProcessContextFactory contextFactory,
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ThreadStart customThreadStart = null)
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{
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handle = 0;
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if ((info.Flags & ~ProcessCreationFlags.All) != 0)
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{
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return KernelResult.InvalidEnumValue;
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}
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// TODO: Address space check.
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if ((info.Flags & ProcessCreationFlags.PoolPartitionMask) > ProcessCreationFlags.PoolPartitionSystemNonSecure)
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{
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return KernelResult.InvalidEnumValue;
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}
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if ((info.CodeAddress & 0x1fffff) != 0)
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{
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return KernelResult.InvalidAddress;
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}
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if (info.CodePagesCount < 0 || info.SystemResourcePagesCount < 0)
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{
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return KernelResult.InvalidSize;
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}
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if (info.Flags.HasFlag(ProcessCreationFlags.OptimizeMemoryAllocation) &&
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!info.Flags.HasFlag(ProcessCreationFlags.IsApplication))
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{
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return KernelResult.InvalidThread;
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}
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KHandleTable handleTable = KernelStatic.GetCurrentProcess().HandleTable;
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KProcess process = new KProcess(_context);
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using var _ = new OnScopeExit(process.DecrementReferenceCount);
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KResourceLimit resourceLimit;
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if (info.ResourceLimitHandle != 0)
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{
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resourceLimit = handleTable.GetObject<KResourceLimit>(info.ResourceLimitHandle);
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if (resourceLimit == null)
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{
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return KernelResult.InvalidHandle;
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}
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}
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else
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{
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resourceLimit = _context.ResourceLimit;
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}
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MemoryRegion memRegion = (info.Flags & ProcessCreationFlags.PoolPartitionMask) switch
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{
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ProcessCreationFlags.PoolPartitionApplication => MemoryRegion.Application,
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ProcessCreationFlags.PoolPartitionApplet => MemoryRegion.Applet,
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ProcessCreationFlags.PoolPartitionSystem => MemoryRegion.Service,
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ProcessCreationFlags.PoolPartitionSystemNonSecure => MemoryRegion.NvServices,
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_ => MemoryRegion.NvServices
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};
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KernelResult result = process.Initialize(
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info,
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capabilities,
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resourceLimit,
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memRegion,
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contextFactory,
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customThreadStart);
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if (result != KernelResult.Success)
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{
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return result;
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}
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_context.Processes.TryAdd(process.Pid, process);
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return handleTable.GenerateHandle(process, out handle);
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}
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public KernelResult StartProcess(int handle, int priority, int cpuCore, ulong mainThreadStackSize)
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{
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KProcess process = KernelStatic.GetCurrentProcess().HandleTable.GetObject<KProcess>(handle);
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if (process == null)
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{
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return KernelResult.InvalidHandle;
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}
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if ((uint)cpuCore >= KScheduler.CpuCoresCount || !process.IsCpuCoreAllowed(cpuCore))
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{
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return KernelResult.InvalidCpuCore;
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}
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if ((uint)priority >= KScheduler.PrioritiesCount || !process.IsPriorityAllowed(priority))
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{
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return KernelResult.InvalidPriority;
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}
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process.DefaultCpuCore = cpuCore;
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KernelResult result = process.Start(priority, mainThreadStackSize);
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if (result != KernelResult.Success)
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{
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return result;
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}
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process.IncrementReferenceCount();
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return KernelResult.Success;
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}
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// IPC
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public KernelResult ConnectToNamedPort(ulong namePtr, out int handle)
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{
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handle = 0;
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if (!KernelTransfer.UserToKernelString(_context, namePtr, 12, out string name))
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{
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return KernelResult.UserCopyFailed;
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}
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return ConnectToNamedPort(name, out handle);
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}
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public KernelResult ConnectToNamedPort(string name, out int handle)
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{
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handle = 0;
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if (name.Length > 11)
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{
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return KernelResult.MaximumExceeded;
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}
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KAutoObject autoObj = KAutoObject.FindNamedObject(_context, name);
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if (!(autoObj is KClientPort clientPort))
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{
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return KernelResult.NotFound;
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}
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KProcess currentProcess = KernelStatic.GetCurrentProcess();
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KernelResult result = currentProcess.HandleTable.ReserveHandle(out handle);
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if (result != KernelResult.Success)
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{
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return result;
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}
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result = clientPort.Connect(out KClientSession clientSession);
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if (result != KernelResult.Success)
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{
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currentProcess.HandleTable.CancelHandleReservation(handle);
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return result;
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}
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currentProcess.HandleTable.SetReservedHandleObj(handle, clientSession);
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clientSession.DecrementReferenceCount();
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return result;
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}
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public KernelResult SendSyncRequest(int handle)
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{
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KProcess currentProcess = KernelStatic.GetCurrentProcess();
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KClientSession session = currentProcess.HandleTable.GetObject<KClientSession>(handle);
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if (session == null)
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{
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return KernelResult.InvalidHandle;
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}
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return session.SendSyncRequest();
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}
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public KernelResult SendSyncRequestWithUserBuffer(ulong messagePtr, ulong messageSize, int handle)
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{
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if (!PageAligned(messagePtr))
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{
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return KernelResult.InvalidAddress;
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}
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if (!PageAligned(messageSize) || messageSize == 0)
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{
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return KernelResult.InvalidSize;
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}
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if (messagePtr + messageSize <= messagePtr)
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{
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return KernelResult.InvalidMemState;
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}
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KProcess currentProcess = KernelStatic.GetCurrentProcess();
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KernelResult result = currentProcess.MemoryManager.BorrowIpcBuffer(messagePtr, messageSize);
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if (result != KernelResult.Success)
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{
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return result;
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}
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KClientSession session = currentProcess.HandleTable.GetObject<KClientSession>(handle);
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if (session == null)
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{
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result = KernelResult.InvalidHandle;
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}
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else
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{
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result = session.SendSyncRequest(messagePtr, messageSize);
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}
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KernelResult result2 = currentProcess.MemoryManager.UnborrowIpcBuffer(messagePtr, messageSize);
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if (result == KernelResult.Success)
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{
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result = result2;
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}
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return result;
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}
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public KernelResult SendAsyncRequestWithUserBuffer(ulong messagePtr, ulong messageSize, int handle, out int doneEventHandle)
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{
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doneEventHandle = 0;
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if (!PageAligned(messagePtr))
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{
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return KernelResult.InvalidAddress;
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}
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if (!PageAligned(messageSize) || messageSize == 0)
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{
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return KernelResult.InvalidSize;
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}
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if (messagePtr + messageSize <= messagePtr)
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{
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return KernelResult.InvalidMemState;
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}
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KProcess currentProcess = KernelStatic.GetCurrentProcess();
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KernelResult result = currentProcess.MemoryManager.BorrowIpcBuffer(messagePtr, messageSize);
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if (result != KernelResult.Success)
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{
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return result;
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}
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KResourceLimit resourceLimit = currentProcess.ResourceLimit;
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if (resourceLimit != null && !resourceLimit.Reserve(LimitableResource.Event, 1))
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{
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currentProcess.MemoryManager.UnborrowIpcBuffer(messagePtr, messageSize);
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return KernelResult.ResLimitExceeded;
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}
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KClientSession session = currentProcess.HandleTable.GetObject<KClientSession>(handle);
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if (session == null)
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{
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result = KernelResult.InvalidHandle;
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}
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else
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{
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KEvent doneEvent = new KEvent(_context);
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result = currentProcess.HandleTable.GenerateHandle(doneEvent.ReadableEvent, out doneEventHandle);
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if (result == KernelResult.Success)
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{
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result = session.SendAsyncRequest(doneEvent.WritableEvent, messagePtr, messageSize);
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if (result != KernelResult.Success)
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{
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currentProcess.HandleTable.CloseHandle(doneEventHandle);
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}
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}
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}
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if (result != KernelResult.Success)
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{
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resourceLimit?.Release(LimitableResource.Event, 1);
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currentProcess.MemoryManager.UnborrowIpcBuffer(messagePtr, messageSize);
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}
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return result;
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}
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public KernelResult CreateSession(
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bool isLight,
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ulong namePtr,
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out int serverSessionHandle,
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out int clientSessionHandle)
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{
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serverSessionHandle = 0;
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clientSessionHandle = 0;
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KProcess currentProcess = KernelStatic.GetCurrentProcess();
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KResourceLimit resourceLimit = currentProcess.ResourceLimit;
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if (resourceLimit != null && !resourceLimit.Reserve(LimitableResource.Session, 1))
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{
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return KernelResult.ResLimitExceeded;
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}
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KernelResult result;
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if (isLight)
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{
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KLightSession session = new KLightSession(_context);
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result = currentProcess.HandleTable.GenerateHandle(session.ServerSession, out serverSessionHandle);
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if (result == KernelResult.Success)
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{
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result = currentProcess.HandleTable.GenerateHandle(session.ClientSession, out clientSessionHandle);
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if (result != KernelResult.Success)
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{
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currentProcess.HandleTable.CloseHandle(serverSessionHandle);
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serverSessionHandle = 0;
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}
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}
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session.ServerSession.DecrementReferenceCount();
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session.ClientSession.DecrementReferenceCount();
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}
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else
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{
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KSession session = new KSession(_context);
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result = currentProcess.HandleTable.GenerateHandle(session.ServerSession, out serverSessionHandle);
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if (result == KernelResult.Success)
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{
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result = currentProcess.HandleTable.GenerateHandle(session.ClientSession, out clientSessionHandle);
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if (result != KernelResult.Success)
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{
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currentProcess.HandleTable.CloseHandle(serverSessionHandle);
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serverSessionHandle = 0;
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}
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}
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session.ServerSession.DecrementReferenceCount();
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session.ClientSession.DecrementReferenceCount();
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}
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return result;
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}
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public KernelResult AcceptSession(int portHandle, out int sessionHandle)
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{
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sessionHandle = 0;
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KProcess currentProcess = KernelStatic.GetCurrentProcess();
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KServerPort serverPort = currentProcess.HandleTable.GetObject<KServerPort>(portHandle);
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if (serverPort == null)
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{
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return KernelResult.InvalidHandle;
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}
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KernelResult result = currentProcess.HandleTable.ReserveHandle(out int handle);
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if (result != KernelResult.Success)
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{
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return result;
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}
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KAutoObject session;
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if (serverPort.IsLight)
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{
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session = serverPort.AcceptIncomingLightConnection();
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}
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else
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{
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session = serverPort.AcceptIncomingConnection();
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}
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if (session != null)
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{
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currentProcess.HandleTable.SetReservedHandleObj(handle, session);
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session.DecrementReferenceCount();
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sessionHandle = handle;
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result = KernelResult.Success;
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}
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else
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{
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currentProcess.HandleTable.CancelHandleReservation(handle);
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result = KernelResult.NotFound;
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}
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return result;
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}
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public KernelResult ReplyAndReceive(
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ulong handlesPtr,
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int handlesCount,
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int replyTargetHandle,
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long timeout,
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out int handleIndex)
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{
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handleIndex = 0;
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if ((uint)handlesCount > 0x40)
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{
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return KernelResult.MaximumExceeded;
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}
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KProcess currentProcess = KernelStatic.GetCurrentProcess();
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ulong copySize = (ulong)((long)handlesCount * 4);
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if (!currentProcess.MemoryManager.InsideAddrSpace(handlesPtr, copySize))
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{
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return KernelResult.UserCopyFailed;
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}
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if (handlesPtr + copySize < handlesPtr)
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{
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return KernelResult.UserCopyFailed;
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}
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int[] handles = new int[handlesCount];
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if (!KernelTransfer.UserToKernelInt32Array(_context, handlesPtr, handles))
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{
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return KernelResult.UserCopyFailed;
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}
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return ReplyAndReceive(handles, replyTargetHandle, timeout, out handleIndex);
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}
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public KernelResult ReplyAndReceive(ReadOnlySpan<int> handles, int replyTargetHandle, long timeout, out int handleIndex)
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{
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handleIndex = 0;
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KProcess currentProcess = KernelStatic.GetCurrentProcess();
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KSynchronizationObject[] syncObjs = new KSynchronizationObject[handles.Length];
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for (int index = 0; index < handles.Length; index++)
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{
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KSynchronizationObject obj = currentProcess.HandleTable.GetObject<KSynchronizationObject>(handles[index]);
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if (obj == null)
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{
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return KernelResult.InvalidHandle;
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}
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syncObjs[index] = obj;
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}
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KernelResult result = KernelResult.Success;
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if (replyTargetHandle != 0)
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{
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KServerSession replyTarget = currentProcess.HandleTable.GetObject<KServerSession>(replyTargetHandle);
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if (replyTarget == null)
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{
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result = KernelResult.InvalidHandle;
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}
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else
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{
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result = replyTarget.Reply();
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}
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}
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if (result == KernelResult.Success)
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{
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while ((result = _context.Synchronization.WaitFor(syncObjs, timeout, out handleIndex)) == KernelResult.Success)
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{
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KServerSession session = currentProcess.HandleTable.GetObject<KServerSession>(handles[handleIndex]);
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if (session == null)
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{
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break;
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}
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if ((result = session.Receive()) != KernelResult.NotFound)
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{
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break;
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}
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}
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}
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return result;
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}
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|
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public KernelResult ReplyAndReceiveWithUserBuffer(
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ulong handlesPtr,
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ulong messagePtr,
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ulong messageSize,
|
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int handlesCount,
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int replyTargetHandle,
|
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long timeout,
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out int handleIndex)
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{
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handleIndex = 0;
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if ((uint)handlesCount > 0x40)
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{
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return KernelResult.MaximumExceeded;
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}
|
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KProcess currentProcess = KernelStatic.GetCurrentProcess();
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ulong copySize = (ulong)((long)handlesCount * 4);
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if (!currentProcess.MemoryManager.InsideAddrSpace(handlesPtr, copySize))
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{
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return KernelResult.UserCopyFailed;
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}
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if (handlesPtr + copySize < handlesPtr)
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{
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return KernelResult.UserCopyFailed;
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}
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KernelResult result = currentProcess.MemoryManager.BorrowIpcBuffer(messagePtr, messageSize);
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|
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if (result != KernelResult.Success)
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{
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return result;
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}
|
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|
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int[] handles = new int[handlesCount];
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|
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if (!KernelTransfer.UserToKernelInt32Array(_context, handlesPtr, handles))
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{
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currentProcess.MemoryManager.UnborrowIpcBuffer(messagePtr, messageSize);
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return KernelResult.UserCopyFailed;
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}
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|
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KSynchronizationObject[] syncObjs = new KSynchronizationObject[handlesCount];
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|
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for (int index = 0; index < handlesCount; index++)
|
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{
|
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KSynchronizationObject obj = currentProcess.HandleTable.GetObject<KSynchronizationObject>(handles[index]);
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|
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if (obj == null)
|
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{
|
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currentProcess.MemoryManager.UnborrowIpcBuffer(messagePtr, messageSize);
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|
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return KernelResult.InvalidHandle;
|
|
}
|
|
|
|
syncObjs[index] = obj;
|
|
}
|
|
|
|
if (replyTargetHandle != 0)
|
|
{
|
|
KServerSession replyTarget = currentProcess.HandleTable.GetObject<KServerSession>(replyTargetHandle);
|
|
|
|
if (replyTarget == null)
|
|
{
|
|
result = KernelResult.InvalidHandle;
|
|
}
|
|
else
|
|
{
|
|
result = replyTarget.Reply(messagePtr, messageSize);
|
|
}
|
|
}
|
|
|
|
if (result == KernelResult.Success)
|
|
{
|
|
while ((result = _context.Synchronization.WaitFor(syncObjs, timeout, out handleIndex)) == KernelResult.Success)
|
|
{
|
|
KServerSession session = currentProcess.HandleTable.GetObject<KServerSession>(handles[handleIndex]);
|
|
|
|
if (session == null)
|
|
{
|
|
break;
|
|
}
|
|
|
|
if ((result = session.Receive(messagePtr, messageSize)) != KernelResult.NotFound)
|
|
{
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
currentProcess.MemoryManager.UnborrowIpcBuffer(messagePtr, messageSize);
|
|
|
|
return result;
|
|
}
|
|
|
|
public KernelResult CreatePort(
|
|
int maxSessions,
|
|
bool isLight,
|
|
ulong namePtr,
|
|
out int serverPortHandle,
|
|
out int clientPortHandle)
|
|
{
|
|
serverPortHandle = clientPortHandle = 0;
|
|
|
|
if (maxSessions < 1)
|
|
{
|
|
return KernelResult.MaximumExceeded;
|
|
}
|
|
|
|
KPort port = new KPort(_context, maxSessions, isLight, (long)namePtr);
|
|
|
|
KProcess currentProcess = KernelStatic.GetCurrentProcess();
|
|
|
|
KernelResult result = currentProcess.HandleTable.GenerateHandle(port.ClientPort, out clientPortHandle);
|
|
|
|
if (result != KernelResult.Success)
|
|
{
|
|
return result;
|
|
}
|
|
|
|
result = currentProcess.HandleTable.GenerateHandle(port.ServerPort, out serverPortHandle);
|
|
|
|
if (result != KernelResult.Success)
|
|
{
|
|
currentProcess.HandleTable.CloseHandle(clientPortHandle);
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
public KernelResult ManageNamedPort(ulong namePtr, int maxSessions, out int handle)
|
|
{
|
|
handle = 0;
|
|
|
|
if (!KernelTransfer.UserToKernelString(_context, namePtr, 12, out string name))
|
|
{
|
|
return KernelResult.UserCopyFailed;
|
|
}
|
|
|
|
if (name.Length > 11)
|
|
{
|
|
return KernelResult.MaximumExceeded;
|
|
}
|
|
|
|
return ManageNamedPort(name, maxSessions, out handle);
|
|
}
|
|
|
|
public KernelResult ManageNamedPort(string name, int maxSessions, out int handle)
|
|
{
|
|
handle = 0;
|
|
|
|
if (maxSessions < 0)
|
|
{
|
|
return KernelResult.MaximumExceeded;
|
|
}
|
|
|
|
if (maxSessions == 0)
|
|
{
|
|
return KAutoObject.RemoveName(_context, name);
|
|
}
|
|
|
|
KPort port = new KPort(_context, maxSessions, false, 0);
|
|
|
|
KProcess currentProcess = KernelStatic.GetCurrentProcess();
|
|
|
|
KernelResult result = currentProcess.HandleTable.GenerateHandle(port.ServerPort, out handle);
|
|
|
|
if (result != KernelResult.Success)
|
|
{
|
|
return result;
|
|
}
|
|
|
|
result = port.ClientPort.SetName(name);
|
|
|
|
if (result != KernelResult.Success)
|
|
{
|
|
currentProcess.HandleTable.CloseHandle(handle);
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
public KernelResult ConnectToPort(int clientPortHandle, out int clientSessionHandle)
|
|
{
|
|
clientSessionHandle = 0;
|
|
|
|
KProcess currentProcess = KernelStatic.GetCurrentProcess();
|
|
|
|
KClientPort clientPort = currentProcess.HandleTable.GetObject<KClientPort>(clientPortHandle);
|
|
|
|
if (clientPort == null)
|
|
{
|
|
return KernelResult.InvalidHandle;
|
|
}
|
|
|
|
KernelResult result = currentProcess.HandleTable.ReserveHandle(out int handle);
|
|
|
|
if (result != KernelResult.Success)
|
|
{
|
|
return result;
|
|
}
|
|
|
|
KAutoObject session;
|
|
|
|
if (clientPort.IsLight)
|
|
{
|
|
result = clientPort.ConnectLight(out KLightClientSession clientSession);
|
|
|
|
session = clientSession;
|
|
}
|
|
else
|
|
{
|
|
result = clientPort.Connect(out KClientSession clientSession);
|
|
|
|
session = clientSession;
|
|
}
|
|
|
|
if (result != KernelResult.Success)
|
|
{
|
|
currentProcess.HandleTable.CancelHandleReservation(handle);
|
|
|
|
return result;
|
|
}
|
|
|
|
currentProcess.HandleTable.SetReservedHandleObj(handle, session);
|
|
|
|
session.DecrementReferenceCount();
|
|
|
|
clientSessionHandle = handle;
|
|
|
|
return result;
|
|
}
|
|
|
|
// Memory
|
|
|
|
public KernelResult SetHeapSize(ulong size, out ulong position)
|
|
{
|
|
if ((size & 0xfffffffe001fffff) != 0)
|
|
{
|
|
position = 0;
|
|
|
|
return KernelResult.InvalidSize;
|
|
}
|
|
|
|
KProcess process = KernelStatic.GetCurrentProcess();
|
|
|
|
return process.MemoryManager.SetHeapSize(size, out position);
|
|
}
|
|
|
|
public KernelResult SetMemoryAttribute(
|
|
ulong position,
|
|
ulong size,
|
|
MemoryAttribute attributeMask,
|
|
MemoryAttribute attributeValue)
|
|
{
|
|
if (!PageAligned(position))
|
|
{
|
|
return KernelResult.InvalidAddress;
|
|
}
|
|
|
|
if (!PageAligned(size) || size == 0)
|
|
{
|
|
return KernelResult.InvalidSize;
|
|
}
|
|
|
|
MemoryAttribute attributes = attributeMask | attributeValue;
|
|
|
|
if (attributes != attributeMask ||
|
|
(attributes | MemoryAttribute.Uncached) != MemoryAttribute.Uncached)
|
|
{
|
|
return KernelResult.InvalidCombination;
|
|
}
|
|
|
|
KProcess process = KernelStatic.GetCurrentProcess();
|
|
|
|
KernelResult result = process.MemoryManager.SetMemoryAttribute(
|
|
position,
|
|
size,
|
|
attributeMask,
|
|
attributeValue);
|
|
|
|
return result;
|
|
}
|
|
|
|
public KernelResult MapMemory(ulong dst, ulong src, ulong size)
|
|
{
|
|
if (!PageAligned(src | dst))
|
|
{
|
|
return KernelResult.InvalidAddress;
|
|
}
|
|
|
|
if (!PageAligned(size) || size == 0)
|
|
{
|
|
return KernelResult.InvalidSize;
|
|
}
|
|
|
|
if (src + size <= src || dst + size <= dst)
|
|
{
|
|
return KernelResult.InvalidMemState;
|
|
}
|
|
|
|
KProcess currentProcess = KernelStatic.GetCurrentProcess();
|
|
|
|
if (!currentProcess.MemoryManager.InsideAddrSpace(src, size))
|
|
{
|
|
return KernelResult.InvalidMemState;
|
|
}
|
|
|
|
if (currentProcess.MemoryManager.OutsideStackRegion(dst, size) ||
|
|
currentProcess.MemoryManager.InsideHeapRegion(dst, size) ||
|
|
currentProcess.MemoryManager.InsideAliasRegion(dst, size))
|
|
{
|
|
return KernelResult.InvalidMemRange;
|
|
}
|
|
|
|
KProcess process = KernelStatic.GetCurrentProcess();
|
|
|
|
return process.MemoryManager.Map(dst, src, size);
|
|
}
|
|
|
|
public KernelResult UnmapMemory(ulong dst, ulong src, ulong size)
|
|
{
|
|
if (!PageAligned(src | dst))
|
|
{
|
|
return KernelResult.InvalidAddress;
|
|
}
|
|
|
|
if (!PageAligned(size) || size == 0)
|
|
{
|
|
return KernelResult.InvalidSize;
|
|
}
|
|
|
|
if (src + size <= src || dst + size <= dst)
|
|
{
|
|
return KernelResult.InvalidMemState;
|
|
}
|
|
|
|
KProcess currentProcess = KernelStatic.GetCurrentProcess();
|
|
|
|
if (!currentProcess.MemoryManager.InsideAddrSpace(src, size))
|
|
{
|
|
return KernelResult.InvalidMemState;
|
|
}
|
|
|
|
if (currentProcess.MemoryManager.OutsideStackRegion(dst, size) ||
|
|
currentProcess.MemoryManager.InsideHeapRegion(dst, size) ||
|
|
currentProcess.MemoryManager.InsideAliasRegion(dst, size))
|
|
{
|
|
return KernelResult.InvalidMemRange;
|
|
}
|
|
|
|
KProcess process = KernelStatic.GetCurrentProcess();
|
|
|
|
return process.MemoryManager.Unmap(dst, src, size);
|
|
}
|
|
|
|
public KernelResult QueryMemory(ulong infoPtr, ulong position, out ulong pageInfo)
|
|
{
|
|
KProcess process = KernelStatic.GetCurrentProcess();
|
|
|
|
KMemoryInfo blkInfo = process.MemoryManager.QueryMemory(position);
|
|
|
|
process.CpuMemory.Write(infoPtr + 0x00, blkInfo.Address);
|
|
process.CpuMemory.Write(infoPtr + 0x08, blkInfo.Size);
|
|
process.CpuMemory.Write(infoPtr + 0x10, (int)blkInfo.State & 0xff);
|
|
process.CpuMemory.Write(infoPtr + 0x14, (int)blkInfo.Attribute);
|
|
process.CpuMemory.Write(infoPtr + 0x18, (int)blkInfo.Permission);
|
|
process.CpuMemory.Write(infoPtr + 0x1c, blkInfo.IpcRefCount);
|
|
process.CpuMemory.Write(infoPtr + 0x20, blkInfo.DeviceRefCount);
|
|
process.CpuMemory.Write(infoPtr + 0x24, 0);
|
|
|
|
pageInfo = 0;
|
|
|
|
return KernelResult.Success;
|
|
}
|
|
|
|
public KernelResult MapSharedMemory(int handle, ulong address, ulong size, KMemoryPermission permission)
|
|
{
|
|
if (!PageAligned(address))
|
|
{
|
|
return KernelResult.InvalidAddress;
|
|
}
|
|
|
|
if (!PageAligned(size) || size == 0)
|
|
{
|
|
return KernelResult.InvalidSize;
|
|
}
|
|
|
|
if (address + size <= address)
|
|
{
|
|
return KernelResult.InvalidMemState;
|
|
}
|
|
|
|
if ((permission | KMemoryPermission.Write) != KMemoryPermission.ReadAndWrite)
|
|
{
|
|
return KernelResult.InvalidPermission;
|
|
}
|
|
|
|
KProcess currentProcess = KernelStatic.GetCurrentProcess();
|
|
|
|
KSharedMemory sharedMemory = currentProcess.HandleTable.GetObject<KSharedMemory>(handle);
|
|
|
|
if (sharedMemory == null)
|
|
{
|
|
return KernelResult.InvalidHandle;
|
|
}
|
|
|
|
if (currentProcess.MemoryManager.IsInvalidRegion(address, size) ||
|
|
currentProcess.MemoryManager.InsideHeapRegion(address, size) ||
|
|
currentProcess.MemoryManager.InsideAliasRegion(address, size))
|
|
{
|
|
return KernelResult.InvalidMemRange;
|
|
}
|
|
|
|
return sharedMemory.MapIntoProcess(
|
|
currentProcess.MemoryManager,
|
|
address,
|
|
size,
|
|
currentProcess,
|
|
permission);
|
|
}
|
|
|
|
public KernelResult UnmapSharedMemory(int handle, ulong address, ulong size)
|
|
{
|
|
if (!PageAligned(address))
|
|
{
|
|
return KernelResult.InvalidAddress;
|
|
}
|
|
|
|
if (!PageAligned(size) || size == 0)
|
|
{
|
|
return KernelResult.InvalidSize;
|
|
}
|
|
|
|
if (address + size <= address)
|
|
{
|
|
return KernelResult.InvalidMemState;
|
|
}
|
|
|
|
KProcess currentProcess = KernelStatic.GetCurrentProcess();
|
|
|
|
KSharedMemory sharedMemory = currentProcess.HandleTable.GetObject<KSharedMemory>(handle);
|
|
|
|
if (sharedMemory == null)
|
|
{
|
|
return KernelResult.InvalidHandle;
|
|
}
|
|
|
|
if (currentProcess.MemoryManager.IsInvalidRegion(address, size) ||
|
|
currentProcess.MemoryManager.InsideHeapRegion(address, size) ||
|
|
currentProcess.MemoryManager.InsideAliasRegion(address, size))
|
|
{
|
|
return KernelResult.InvalidMemRange;
|
|
}
|
|
|
|
return sharedMemory.UnmapFromProcess(
|
|
currentProcess.MemoryManager,
|
|
address,
|
|
size,
|
|
currentProcess);
|
|
}
|
|
|
|
public KernelResult CreateTransferMemory(ulong address, ulong size, KMemoryPermission permission, out int handle)
|
|
{
|
|
handle = 0;
|
|
|
|
if (!PageAligned(address))
|
|
{
|
|
return KernelResult.InvalidAddress;
|
|
}
|
|
|
|
if (!PageAligned(size) || size == 0)
|
|
{
|
|
return KernelResult.InvalidSize;
|
|
}
|
|
|
|
if (address + size <= address)
|
|
{
|
|
return KernelResult.InvalidMemState;
|
|
}
|
|
|
|
if (permission > KMemoryPermission.ReadAndWrite || permission == KMemoryPermission.Write)
|
|
{
|
|
return KernelResult.InvalidPermission;
|
|
}
|
|
|
|
KProcess process = KernelStatic.GetCurrentProcess();
|
|
|
|
KResourceLimit resourceLimit = process.ResourceLimit;
|
|
|
|
if (resourceLimit != null && !resourceLimit.Reserve(LimitableResource.TransferMemory, 1))
|
|
{
|
|
return KernelResult.ResLimitExceeded;
|
|
}
|
|
|
|
void CleanUpForError()
|
|
{
|
|
resourceLimit?.Release(LimitableResource.TransferMemory, 1);
|
|
}
|
|
|
|
if (!process.MemoryManager.InsideAddrSpace(address, size))
|
|
{
|
|
CleanUpForError();
|
|
|
|
return KernelResult.InvalidMemState;
|
|
}
|
|
|
|
KTransferMemory transferMemory = new KTransferMemory(_context);
|
|
|
|
KernelResult result = transferMemory.Initialize(address, size, permission);
|
|
|
|
if (result != KernelResult.Success)
|
|
{
|
|
CleanUpForError();
|
|
|
|
return result;
|
|
}
|
|
|
|
result = process.HandleTable.GenerateHandle(transferMemory, out handle);
|
|
|
|
transferMemory.DecrementReferenceCount();
|
|
|
|
return result;
|
|
}
|
|
|
|
public KernelResult MapPhysicalMemory(ulong address, ulong size)
|
|
{
|
|
if (!PageAligned(address))
|
|
{
|
|
return KernelResult.InvalidAddress;
|
|
}
|
|
|
|
if (!PageAligned(size) || size == 0)
|
|
{
|
|
return KernelResult.InvalidSize;
|
|
}
|
|
|
|
if (address + size <= address)
|
|
{
|
|
return KernelResult.InvalidMemRange;
|
|
}
|
|
|
|
KProcess currentProcess = KernelStatic.GetCurrentProcess();
|
|
|
|
if ((currentProcess.PersonalMmHeapPagesCount & 0xfffffffffffff) == 0)
|
|
{
|
|
return KernelResult.InvalidState;
|
|
}
|
|
|
|
if (!currentProcess.MemoryManager.InsideAddrSpace(address, size) ||
|
|
currentProcess.MemoryManager.OutsideAliasRegion(address, size))
|
|
{
|
|
return KernelResult.InvalidMemRange;
|
|
}
|
|
|
|
KProcess process = KernelStatic.GetCurrentProcess();
|
|
|
|
return process.MemoryManager.MapPhysicalMemory(address, size);
|
|
}
|
|
|
|
public KernelResult UnmapPhysicalMemory(ulong address, ulong size)
|
|
{
|
|
if (!PageAligned(address))
|
|
{
|
|
return KernelResult.InvalidAddress;
|
|
}
|
|
|
|
if (!PageAligned(size) || size == 0)
|
|
{
|
|
return KernelResult.InvalidSize;
|
|
}
|
|
|
|
if (address + size <= address)
|
|
{
|
|
return KernelResult.InvalidMemRange;
|
|
}
|
|
|
|
KProcess currentProcess = KernelStatic.GetCurrentProcess();
|
|
|
|
if ((currentProcess.PersonalMmHeapPagesCount & 0xfffffffffffff) == 0)
|
|
{
|
|
return KernelResult.InvalidState;
|
|
}
|
|
|
|
if (!currentProcess.MemoryManager.InsideAddrSpace(address, size) ||
|
|
currentProcess.MemoryManager.OutsideAliasRegion(address, size))
|
|
{
|
|
return KernelResult.InvalidMemRange;
|
|
}
|
|
|
|
KProcess process = KernelStatic.GetCurrentProcess();
|
|
|
|
return process.MemoryManager.UnmapPhysicalMemory(address, size);
|
|
}
|
|
|
|
public KernelResult MapProcessCodeMemory(int handle, ulong dst, ulong src, ulong size)
|
|
{
|
|
if (!PageAligned(dst) || !PageAligned(src))
|
|
{
|
|
return KernelResult.InvalidAddress;
|
|
}
|
|
|
|
if (!PageAligned(size) || size == 0)
|
|
{
|
|
return KernelResult.InvalidSize;
|
|
}
|
|
|
|
KProcess currentProcess = KernelStatic.GetCurrentProcess();
|
|
|
|
KProcess targetProcess = currentProcess.HandleTable.GetObject<KProcess>(handle);
|
|
|
|
if (targetProcess == null)
|
|
{
|
|
return KernelResult.InvalidHandle;
|
|
}
|
|
|
|
if (targetProcess.MemoryManager.OutsideAddrSpace(dst, size) ||
|
|
targetProcess.MemoryManager.OutsideAddrSpace(src, size) ||
|
|
targetProcess.MemoryManager.InsideAliasRegion(dst, size) ||
|
|
targetProcess.MemoryManager.InsideHeapRegion(dst, size))
|
|
{
|
|
return KernelResult.InvalidMemRange;
|
|
}
|
|
|
|
if (size + dst <= dst || size + src <= src)
|
|
{
|
|
return KernelResult.InvalidMemState;
|
|
}
|
|
|
|
return targetProcess.MemoryManager.MapProcessCodeMemory(dst, src, size);
|
|
}
|
|
|
|
public KernelResult UnmapProcessCodeMemory(int handle, ulong dst, ulong src, ulong size)
|
|
{
|
|
if (!PageAligned(dst) || !PageAligned(src))
|
|
{
|
|
return KernelResult.InvalidAddress;
|
|
}
|
|
|
|
if (!PageAligned(size) || size == 0)
|
|
{
|
|
return KernelResult.InvalidSize;
|
|
}
|
|
|
|
KProcess currentProcess = KernelStatic.GetCurrentProcess();
|
|
|
|
KProcess targetProcess = currentProcess.HandleTable.GetObject<KProcess>(handle);
|
|
|
|
if (targetProcess == null)
|
|
{
|
|
return KernelResult.InvalidHandle;
|
|
}
|
|
|
|
if (targetProcess.MemoryManager.OutsideAddrSpace(dst, size) ||
|
|
targetProcess.MemoryManager.OutsideAddrSpace(src, size) ||
|
|
targetProcess.MemoryManager.InsideAliasRegion(dst, size) ||
|
|
targetProcess.MemoryManager.InsideHeapRegion(dst, size))
|
|
{
|
|
return KernelResult.InvalidMemRange;
|
|
}
|
|
|
|
if (size + dst <= dst || size + src <= src)
|
|
{
|
|
return KernelResult.InvalidMemState;
|
|
}
|
|
|
|
return targetProcess.MemoryManager.UnmapProcessCodeMemory(dst, src, size);
|
|
}
|
|
|
|
public KernelResult SetProcessMemoryPermission(int handle, ulong src, ulong size, KMemoryPermission permission)
|
|
{
|
|
if (!PageAligned(src))
|
|
{
|
|
return KernelResult.InvalidAddress;
|
|
}
|
|
|
|
if (!PageAligned(size) || size == 0)
|
|
{
|
|
return KernelResult.InvalidSize;
|
|
}
|
|
|
|
if (permission != KMemoryPermission.None &&
|
|
permission != KMemoryPermission.Read &&
|
|
permission != KMemoryPermission.ReadAndWrite &&
|
|
permission != KMemoryPermission.ReadAndExecute)
|
|
{
|
|
return KernelResult.InvalidPermission;
|
|
}
|
|
|
|
KProcess currentProcess = KernelStatic.GetCurrentProcess();
|
|
|
|
KProcess targetProcess = currentProcess.HandleTable.GetObject<KProcess>(handle);
|
|
|
|
if (targetProcess == null)
|
|
{
|
|
return KernelResult.InvalidHandle;
|
|
}
|
|
|
|
if (targetProcess.MemoryManager.OutsideAddrSpace(src, size))
|
|
{
|
|
return KernelResult.InvalidMemState;
|
|
}
|
|
|
|
return targetProcess.MemoryManager.SetProcessMemoryPermission(src, size, permission);
|
|
}
|
|
|
|
private static bool PageAligned(ulong position)
|
|
{
|
|
return (position & (KMemoryManager.PageSize - 1)) == 0;
|
|
}
|
|
|
|
// System
|
|
|
|
public KernelResult TerminateProcess(int handle)
|
|
{
|
|
KProcess process = KernelStatic.GetCurrentProcess();
|
|
|
|
process = process.HandleTable.GetObject<KProcess>(handle);
|
|
|
|
KernelResult result;
|
|
|
|
if (process != null)
|
|
{
|
|
if (process == KernelStatic.GetCurrentProcess())
|
|
{
|
|
result = KernelResult.Success;
|
|
process.DecrementToZeroWhileTerminatingCurrent();
|
|
}
|
|
else
|
|
{
|
|
result = process.Terminate();
|
|
process.DecrementReferenceCount();
|
|
}
|
|
}
|
|
else
|
|
{
|
|
result = KernelResult.InvalidHandle;
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
public void ExitProcess()
|
|
{
|
|
KernelStatic.GetCurrentProcess().TerminateCurrentProcess();
|
|
}
|
|
|
|
public KernelResult SignalEvent(int handle)
|
|
{
|
|
KProcess process = KernelStatic.GetCurrentProcess();
|
|
|
|
KWritableEvent writableEvent = process.HandleTable.GetObject<KWritableEvent>(handle);
|
|
|
|
KernelResult result;
|
|
|
|
if (writableEvent != null)
|
|
{
|
|
writableEvent.Signal();
|
|
|
|
result = KernelResult.Success;
|
|
}
|
|
else
|
|
{
|
|
result = KernelResult.InvalidHandle;
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
public KernelResult ClearEvent(int handle)
|
|
{
|
|
KernelResult result;
|
|
|
|
KProcess process = KernelStatic.GetCurrentProcess();
|
|
|
|
KWritableEvent writableEvent = process.HandleTable.GetObject<KWritableEvent>(handle);
|
|
|
|
if (writableEvent == null)
|
|
{
|
|
KReadableEvent readableEvent = process.HandleTable.GetObject<KReadableEvent>(handle);
|
|
|
|
result = readableEvent?.Clear() ?? KernelResult.InvalidHandle;
|
|
}
|
|
else
|
|
{
|
|
result = writableEvent.Clear();
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
public KernelResult CloseHandle(int handle)
|
|
{
|
|
KProcess currentProcess = KernelStatic.GetCurrentProcess();
|
|
|
|
return currentProcess.HandleTable.CloseHandle(handle) ? KernelResult.Success : KernelResult.InvalidHandle;
|
|
}
|
|
|
|
public KernelResult ResetSignal(int handle)
|
|
{
|
|
KProcess currentProcess = KernelStatic.GetCurrentProcess();
|
|
|
|
KReadableEvent readableEvent = currentProcess.HandleTable.GetObject<KReadableEvent>(handle);
|
|
|
|
KernelResult result;
|
|
|
|
if (readableEvent != null)
|
|
{
|
|
result = readableEvent.ClearIfSignaled();
|
|
}
|
|
else
|
|
{
|
|
KProcess process = currentProcess.HandleTable.GetKProcess(handle);
|
|
|
|
if (process != null)
|
|
{
|
|
result = process.ClearIfNotExited();
|
|
}
|
|
else
|
|
{
|
|
result = KernelResult.InvalidHandle;
|
|
}
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
public ulong GetSystemTick()
|
|
{
|
|
return KernelStatic.GetCurrentThread().Context.CntpctEl0;
|
|
}
|
|
|
|
public void Break(ulong reason)
|
|
{
|
|
KThread currentThread = KernelStatic.GetCurrentThread();
|
|
|
|
if ((reason & (1UL << 31)) == 0)
|
|
{
|
|
currentThread.PrintGuestStackTrace();
|
|
|
|
// As the process is exiting, this is probably caused by emulation termination.
|
|
if (currentThread.Owner.State == ProcessState.Exiting)
|
|
{
|
|
return;
|
|
}
|
|
|
|
// TODO: Debug events.
|
|
currentThread.Owner.TerminateCurrentProcess();
|
|
|
|
throw new GuestBrokeExecutionException();
|
|
}
|
|
else
|
|
{
|
|
Logger.Debug?.Print(LogClass.KernelSvc, "Debugger triggered.");
|
|
}
|
|
}
|
|
|
|
public void OutputDebugString(ulong strPtr, ulong size)
|
|
{
|
|
KProcess process = KernelStatic.GetCurrentProcess();
|
|
|
|
string str = MemoryHelper.ReadAsciiString(process.CpuMemory, (long)strPtr, (long)size);
|
|
|
|
Logger.Warning?.Print(LogClass.KernelSvc, str);
|
|
}
|
|
|
|
public KernelResult GetInfo(uint id, int handle, long subId, out long value)
|
|
{
|
|
value = 0;
|
|
|
|
switch (id)
|
|
{
|
|
case 0:
|
|
case 1:
|
|
case 2:
|
|
case 3:
|
|
case 4:
|
|
case 5:
|
|
case 6:
|
|
case 7:
|
|
case 12:
|
|
case 13:
|
|
case 14:
|
|
case 15:
|
|
case 16:
|
|
case 17:
|
|
case 18:
|
|
case 20:
|
|
case 21:
|
|
case 22:
|
|
{
|
|
if (subId != 0)
|
|
{
|
|
return KernelResult.InvalidCombination;
|
|
}
|
|
|
|
KProcess currentProcess = KernelStatic.GetCurrentProcess();
|
|
|
|
KProcess process = currentProcess.HandleTable.GetKProcess(handle);
|
|
|
|
if (process == null)
|
|
{
|
|
return KernelResult.InvalidHandle;
|
|
}
|
|
|
|
switch (id)
|
|
{
|
|
case 0: value = process.Capabilities.AllowedCpuCoresMask; break;
|
|
case 1: value = process.Capabilities.AllowedThreadPriosMask; break;
|
|
|
|
case 2: value = (long)process.MemoryManager.AliasRegionStart; break;
|
|
case 3:
|
|
value = (long)(process.MemoryManager.AliasRegionEnd -
|
|
process.MemoryManager.AliasRegionStart); break;
|
|
|
|
case 4: value = (long)process.MemoryManager.HeapRegionStart; break;
|
|
case 5:
|
|
value = (long)(process.MemoryManager.HeapRegionEnd -
|
|
process.MemoryManager.HeapRegionStart); break;
|
|
|
|
case 6: value = (long)process.GetMemoryCapacity(); break;
|
|
|
|
case 7: value = (long)process.GetMemoryUsage(); break;
|
|
|
|
case 12: value = (long)process.MemoryManager.GetAddrSpaceBaseAddr(); break;
|
|
|
|
case 13: value = (long)process.MemoryManager.GetAddrSpaceSize(); break;
|
|
|
|
case 14: value = (long)process.MemoryManager.StackRegionStart; break;
|
|
case 15:
|
|
value = (long)(process.MemoryManager.StackRegionEnd -
|
|
process.MemoryManager.StackRegionStart); break;
|
|
|
|
case 16: value = (long)process.PersonalMmHeapPagesCount * KMemoryManager.PageSize; break;
|
|
|
|
case 17:
|
|
if (process.PersonalMmHeapPagesCount != 0)
|
|
{
|
|
value = process.MemoryManager.GetMmUsedPages() * KMemoryManager.PageSize;
|
|
}
|
|
|
|
break;
|
|
|
|
case 18: value = (long)process.TitleId; break;
|
|
|
|
case 20: value = (long)process.UserExceptionContextAddress; break;
|
|
|
|
case 21: value = (long)process.GetMemoryCapacityWithoutPersonalMmHeap(); break;
|
|
|
|
case 22: value = (long)process.GetMemoryUsageWithoutPersonalMmHeap(); break;
|
|
}
|
|
|
|
break;
|
|
}
|
|
|
|
case 8:
|
|
{
|
|
if (handle != 0)
|
|
{
|
|
return KernelResult.InvalidHandle;
|
|
}
|
|
|
|
if (subId != 0)
|
|
{
|
|
return KernelResult.InvalidCombination;
|
|
}
|
|
|
|
value = KernelStatic.GetCurrentProcess().Debug ? 1 : 0;
|
|
|
|
break;
|
|
}
|
|
|
|
case 9:
|
|
{
|
|
if (handle != 0)
|
|
{
|
|
return KernelResult.InvalidHandle;
|
|
}
|
|
|
|
if (subId != 0)
|
|
{
|
|
return KernelResult.InvalidCombination;
|
|
}
|
|
|
|
KProcess currentProcess = KernelStatic.GetCurrentProcess();
|
|
|
|
if (currentProcess.ResourceLimit != null)
|
|
{
|
|
KHandleTable handleTable = currentProcess.HandleTable;
|
|
KResourceLimit resourceLimit = currentProcess.ResourceLimit;
|
|
|
|
KernelResult result = handleTable.GenerateHandle(resourceLimit, out int resLimHandle);
|
|
|
|
if (result != KernelResult.Success)
|
|
{
|
|
return result;
|
|
}
|
|
|
|
value = (uint)resLimHandle;
|
|
}
|
|
|
|
break;
|
|
}
|
|
|
|
case 10:
|
|
{
|
|
if (handle != 0)
|
|
{
|
|
return KernelResult.InvalidHandle;
|
|
}
|
|
|
|
int currentCore = KernelStatic.GetCurrentThread().CurrentCore;
|
|
|
|
if (subId != -1 && subId != currentCore)
|
|
{
|
|
return KernelResult.InvalidCombination;
|
|
}
|
|
|
|
value = KTimeManager.ConvertHostTicksToTicks(_context.Schedulers[currentCore].TotalIdleTimeTicks);
|
|
|
|
break;
|
|
}
|
|
|
|
case 11:
|
|
{
|
|
if (handle != 0)
|
|
{
|
|
return KernelResult.InvalidHandle;
|
|
}
|
|
|
|
if ((ulong)subId > 3)
|
|
{
|
|
return KernelResult.InvalidCombination;
|
|
}
|
|
|
|
KProcess currentProcess = KernelStatic.GetCurrentProcess();
|
|
|
|
value = currentProcess.RandomEntropy[subId];
|
|
|
|
break;
|
|
}
|
|
|
|
case 0xf0000002u:
|
|
{
|
|
if (subId < -1 || subId > 3)
|
|
{
|
|
return KernelResult.InvalidCombination;
|
|
}
|
|
|
|
KThread thread = KernelStatic.GetCurrentProcess().HandleTable.GetKThread(handle);
|
|
|
|
if (thread == null)
|
|
{
|
|
return KernelResult.InvalidHandle;
|
|
}
|
|
|
|
KThread currentThread = KernelStatic.GetCurrentThread();
|
|
|
|
int currentCore = currentThread.CurrentCore;
|
|
|
|
if (subId != -1 && subId != currentCore)
|
|
{
|
|
return KernelResult.Success;
|
|
}
|
|
|
|
KScheduler scheduler = _context.Schedulers[currentCore];
|
|
|
|
long timeDelta = PerformanceCounter.ElapsedTicks - scheduler.LastContextSwitchTime;
|
|
|
|
if (subId != -1)
|
|
{
|
|
value = KTimeManager.ConvertHostTicksToTicks(timeDelta);
|
|
}
|
|
else
|
|
{
|
|
long totalTimeRunning = thread.TotalTimeRunning;
|
|
|
|
if (thread == currentThread)
|
|
{
|
|
totalTimeRunning += timeDelta;
|
|
}
|
|
|
|
value = KTimeManager.ConvertHostTicksToTicks(totalTimeRunning);
|
|
}
|
|
|
|
break;
|
|
}
|
|
|
|
default: return KernelResult.InvalidEnumValue;
|
|
}
|
|
|
|
return KernelResult.Success;
|
|
}
|
|
|
|
public KernelResult CreateEvent(out int wEventHandle, out int rEventHandle)
|
|
{
|
|
KEvent Event = new KEvent(_context);
|
|
|
|
KProcess process = KernelStatic.GetCurrentProcess();
|
|
|
|
KernelResult result = process.HandleTable.GenerateHandle(Event.WritableEvent, out wEventHandle);
|
|
|
|
if (result == KernelResult.Success)
|
|
{
|
|
result = process.HandleTable.GenerateHandle(Event.ReadableEvent, out rEventHandle);
|
|
|
|
if (result != KernelResult.Success)
|
|
{
|
|
process.HandleTable.CloseHandle(wEventHandle);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
rEventHandle = 0;
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
public KernelResult GetProcessList(ulong address, int maxCount, out int count)
|
|
{
|
|
count = 0;
|
|
|
|
if ((maxCount >> 28) != 0)
|
|
{
|
|
return KernelResult.MaximumExceeded;
|
|
}
|
|
|
|
if (maxCount != 0)
|
|
{
|
|
KProcess currentProcess = KernelStatic.GetCurrentProcess();
|
|
|
|
ulong copySize = (ulong)maxCount * 8;
|
|
|
|
if (address + copySize <= address)
|
|
{
|
|
return KernelResult.InvalidMemState;
|
|
}
|
|
|
|
if (currentProcess.MemoryManager.OutsideAddrSpace(address, copySize))
|
|
{
|
|
return KernelResult.InvalidMemState;
|
|
}
|
|
}
|
|
|
|
int copyCount = 0;
|
|
|
|
lock (_context.Processes)
|
|
{
|
|
foreach (KProcess process in _context.Processes.Values)
|
|
{
|
|
if (copyCount < maxCount)
|
|
{
|
|
if (!KernelTransfer.KernelToUserInt64(_context, address + (ulong)copyCount * 8, process.Pid))
|
|
{
|
|
return KernelResult.UserCopyFailed;
|
|
}
|
|
}
|
|
|
|
copyCount++;
|
|
}
|
|
}
|
|
|
|
count = copyCount;
|
|
|
|
return KernelResult.Success;
|
|
}
|
|
|
|
public KernelResult GetSystemInfo(uint id, int handle, long subId, out long value)
|
|
{
|
|
value = 0;
|
|
|
|
if (id > 2)
|
|
{
|
|
return KernelResult.InvalidEnumValue;
|
|
}
|
|
|
|
if (handle != 0)
|
|
{
|
|
return KernelResult.InvalidHandle;
|
|
}
|
|
|
|
if (id < 2)
|
|
{
|
|
if ((ulong)subId > 3)
|
|
{
|
|
return KernelResult.InvalidCombination;
|
|
}
|
|
|
|
KMemoryRegionManager region = _context.MemoryRegions[subId];
|
|
|
|
switch (id)
|
|
{
|
|
// Memory region capacity.
|
|
case 0: value = (long)region.Size; break;
|
|
|
|
// Memory region free space.
|
|
case 1:
|
|
{
|
|
ulong freePagesCount = region.GetFreePages();
|
|
|
|
value = (long)(freePagesCount * KMemoryManager.PageSize);
|
|
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
else /* if (Id == 2) */
|
|
{
|
|
if ((ulong)subId > 1)
|
|
{
|
|
return KernelResult.InvalidCombination;
|
|
}
|
|
|
|
switch (subId)
|
|
{
|
|
case 0: value = _context.PrivilegedProcessLowestId; break;
|
|
case 1: value = _context.PrivilegedProcessHighestId; break;
|
|
}
|
|
}
|
|
|
|
return KernelResult.Success;
|
|
}
|
|
|
|
// Thread
|
|
|
|
public KernelResult CreateThread(
|
|
ulong entrypoint,
|
|
ulong argsPtr,
|
|
ulong stackTop,
|
|
int priority,
|
|
int cpuCore,
|
|
out int handle)
|
|
{
|
|
handle = 0;
|
|
|
|
KProcess currentProcess = KernelStatic.GetCurrentProcess();
|
|
|
|
if (cpuCore == -2)
|
|
{
|
|
cpuCore = currentProcess.DefaultCpuCore;
|
|
}
|
|
|
|
if ((uint)cpuCore >= KScheduler.CpuCoresCount || !currentProcess.IsCpuCoreAllowed(cpuCore))
|
|
{
|
|
return KernelResult.InvalidCpuCore;
|
|
}
|
|
|
|
if ((uint)priority >= KScheduler.PrioritiesCount || !currentProcess.IsPriorityAllowed(priority))
|
|
{
|
|
return KernelResult.InvalidPriority;
|
|
}
|
|
|
|
long timeout = KTimeManager.ConvertMillisecondsToNanoseconds(100);
|
|
|
|
if (currentProcess.ResourceLimit != null &&
|
|
!currentProcess.ResourceLimit.Reserve(LimitableResource.Thread, 1, timeout))
|
|
{
|
|
return KernelResult.ResLimitExceeded;
|
|
}
|
|
|
|
KThread thread = new KThread(_context);
|
|
|
|
KernelResult result = currentProcess.InitializeThread(
|
|
thread,
|
|
entrypoint,
|
|
argsPtr,
|
|
stackTop,
|
|
priority,
|
|
cpuCore);
|
|
|
|
if (result == KernelResult.Success)
|
|
{
|
|
KProcess process = KernelStatic.GetCurrentProcess();
|
|
|
|
result = process.HandleTable.GenerateHandle(thread, out handle);
|
|
}
|
|
else
|
|
{
|
|
currentProcess.ResourceLimit?.Release(LimitableResource.Thread, 1);
|
|
}
|
|
|
|
thread.DecrementReferenceCount();
|
|
|
|
return result;
|
|
}
|
|
|
|
public KernelResult StartThread(int handle)
|
|
{
|
|
KProcess process = KernelStatic.GetCurrentProcess();
|
|
|
|
KThread thread = process.HandleTable.GetKThread(handle);
|
|
|
|
if (thread != null)
|
|
{
|
|
thread.IncrementReferenceCount();
|
|
|
|
KernelResult result = thread.Start();
|
|
|
|
if (result == KernelResult.Success)
|
|
{
|
|
thread.IncrementReferenceCount();
|
|
}
|
|
|
|
thread.DecrementReferenceCount();
|
|
|
|
return result;
|
|
}
|
|
else
|
|
{
|
|
return KernelResult.InvalidHandle;
|
|
}
|
|
}
|
|
|
|
public void ExitThread()
|
|
{
|
|
KThread currentThread = KernelStatic.GetCurrentThread();
|
|
|
|
currentThread.Exit();
|
|
}
|
|
|
|
public void SleepThread(long timeout)
|
|
{
|
|
if (timeout < 1)
|
|
{
|
|
switch (timeout)
|
|
{
|
|
case 0: KScheduler.Yield(_context); break;
|
|
case -1: KScheduler.YieldWithLoadBalancing(_context); break;
|
|
case -2: KScheduler.YieldToAnyThread(_context); break;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
KernelStatic.GetCurrentThread().Sleep(timeout);
|
|
}
|
|
}
|
|
|
|
public KernelResult GetThreadPriority(int handle, out int priority)
|
|
{
|
|
KProcess process = KernelStatic.GetCurrentProcess();
|
|
|
|
KThread thread = process.HandleTable.GetKThread(handle);
|
|
|
|
if (thread != null)
|
|
{
|
|
priority = thread.DynamicPriority;
|
|
|
|
return KernelResult.Success;
|
|
}
|
|
else
|
|
{
|
|
priority = 0;
|
|
|
|
return KernelResult.InvalidHandle;
|
|
}
|
|
}
|
|
|
|
public KernelResult SetThreadPriority(int handle, int priority)
|
|
{
|
|
// TODO: NPDM check.
|
|
|
|
KProcess process = KernelStatic.GetCurrentProcess();
|
|
|
|
KThread thread = process.HandleTable.GetKThread(handle);
|
|
|
|
if (thread == null)
|
|
{
|
|
return KernelResult.InvalidHandle;
|
|
}
|
|
|
|
thread.SetPriority(priority);
|
|
|
|
return KernelResult.Success;
|
|
}
|
|
|
|
public KernelResult GetThreadCoreMask(int handle, out int preferredCore, out long affinityMask)
|
|
{
|
|
KProcess process = KernelStatic.GetCurrentProcess();
|
|
|
|
KThread thread = process.HandleTable.GetKThread(handle);
|
|
|
|
if (thread != null)
|
|
{
|
|
preferredCore = thread.PreferredCore;
|
|
affinityMask = thread.AffinityMask;
|
|
|
|
return KernelResult.Success;
|
|
}
|
|
else
|
|
{
|
|
preferredCore = 0;
|
|
affinityMask = 0;
|
|
|
|
return KernelResult.InvalidHandle;
|
|
}
|
|
}
|
|
|
|
public KernelResult SetThreadCoreMask(int handle, int preferredCore, long affinityMask)
|
|
{
|
|
KProcess currentProcess = KernelStatic.GetCurrentProcess();
|
|
|
|
if (preferredCore == -2)
|
|
{
|
|
preferredCore = currentProcess.DefaultCpuCore;
|
|
|
|
affinityMask = 1 << preferredCore;
|
|
}
|
|
else
|
|
{
|
|
if ((currentProcess.Capabilities.AllowedCpuCoresMask | affinityMask) !=
|
|
currentProcess.Capabilities.AllowedCpuCoresMask)
|
|
{
|
|
return KernelResult.InvalidCpuCore;
|
|
}
|
|
|
|
if (affinityMask == 0)
|
|
{
|
|
return KernelResult.InvalidCombination;
|
|
}
|
|
|
|
if ((uint)preferredCore > 3)
|
|
{
|
|
if ((preferredCore | 2) != -1)
|
|
{
|
|
return KernelResult.InvalidCpuCore;
|
|
}
|
|
}
|
|
else if ((affinityMask & (1 << preferredCore)) == 0)
|
|
{
|
|
return KernelResult.InvalidCombination;
|
|
}
|
|
}
|
|
|
|
KProcess process = KernelStatic.GetCurrentProcess();
|
|
|
|
KThread thread = process.HandleTable.GetKThread(handle);
|
|
|
|
if (thread == null)
|
|
{
|
|
return KernelResult.InvalidHandle;
|
|
}
|
|
|
|
return thread.SetCoreAndAffinityMask(preferredCore, affinityMask);
|
|
}
|
|
|
|
public int GetCurrentProcessorNumber()
|
|
{
|
|
return KernelStatic.GetCurrentThread().CurrentCore;
|
|
}
|
|
|
|
public KernelResult GetThreadId(int handle, out long threadUid)
|
|
{
|
|
KProcess process = KernelStatic.GetCurrentProcess();
|
|
|
|
KThread thread = process.HandleTable.GetKThread(handle);
|
|
|
|
if (thread != null)
|
|
{
|
|
threadUid = thread.ThreadUid;
|
|
|
|
return KernelResult.Success;
|
|
}
|
|
else
|
|
{
|
|
threadUid = 0;
|
|
|
|
return KernelResult.InvalidHandle;
|
|
}
|
|
}
|
|
|
|
public KernelResult SetThreadActivity(int handle, bool pause)
|
|
{
|
|
KProcess process = KernelStatic.GetCurrentProcess();
|
|
|
|
KThread thread = process.HandleTable.GetObject<KThread>(handle);
|
|
|
|
if (thread == null)
|
|
{
|
|
return KernelResult.InvalidHandle;
|
|
}
|
|
|
|
if (thread.Owner != process)
|
|
{
|
|
return KernelResult.InvalidHandle;
|
|
}
|
|
|
|
if (thread == KernelStatic.GetCurrentThread())
|
|
{
|
|
return KernelResult.InvalidThread;
|
|
}
|
|
|
|
return thread.SetActivity(pause);
|
|
}
|
|
|
|
public KernelResult GetThreadContext3(ulong address, int handle)
|
|
{
|
|
KProcess currentProcess = KernelStatic.GetCurrentProcess();
|
|
KThread currentThread = KernelStatic.GetCurrentThread();
|
|
|
|
KThread thread = currentProcess.HandleTable.GetObject<KThread>(handle);
|
|
|
|
if (thread == null)
|
|
{
|
|
return KernelResult.InvalidHandle;
|
|
}
|
|
|
|
if (thread.Owner != currentProcess)
|
|
{
|
|
return KernelResult.InvalidHandle;
|
|
}
|
|
|
|
if (currentThread == thread)
|
|
{
|
|
return KernelResult.InvalidThread;
|
|
}
|
|
|
|
IVirtualMemoryManager memory = currentProcess.CpuMemory;
|
|
|
|
memory.Write(address + 0x0, thread.Context.GetX(0));
|
|
memory.Write(address + 0x8, thread.Context.GetX(1));
|
|
memory.Write(address + 0x10, thread.Context.GetX(2));
|
|
memory.Write(address + 0x18, thread.Context.GetX(3));
|
|
memory.Write(address + 0x20, thread.Context.GetX(4));
|
|
memory.Write(address + 0x28, thread.Context.GetX(5));
|
|
memory.Write(address + 0x30, thread.Context.GetX(6));
|
|
memory.Write(address + 0x38, thread.Context.GetX(7));
|
|
memory.Write(address + 0x40, thread.Context.GetX(8));
|
|
memory.Write(address + 0x48, thread.Context.GetX(9));
|
|
memory.Write(address + 0x50, thread.Context.GetX(10));
|
|
memory.Write(address + 0x58, thread.Context.GetX(11));
|
|
memory.Write(address + 0x60, thread.Context.GetX(12));
|
|
memory.Write(address + 0x68, thread.Context.GetX(13));
|
|
memory.Write(address + 0x70, thread.Context.GetX(14));
|
|
memory.Write(address + 0x78, thread.Context.GetX(15));
|
|
memory.Write(address + 0x80, thread.Context.GetX(16));
|
|
memory.Write(address + 0x88, thread.Context.GetX(17));
|
|
memory.Write(address + 0x90, thread.Context.GetX(18));
|
|
memory.Write(address + 0x98, thread.Context.GetX(19));
|
|
memory.Write(address + 0xa0, thread.Context.GetX(20));
|
|
memory.Write(address + 0xa8, thread.Context.GetX(21));
|
|
memory.Write(address + 0xb0, thread.Context.GetX(22));
|
|
memory.Write(address + 0xb8, thread.Context.GetX(23));
|
|
memory.Write(address + 0xc0, thread.Context.GetX(24));
|
|
memory.Write(address + 0xc8, thread.Context.GetX(25));
|
|
memory.Write(address + 0xd0, thread.Context.GetX(26));
|
|
memory.Write(address + 0xd8, thread.Context.GetX(27));
|
|
memory.Write(address + 0xe0, thread.Context.GetX(28));
|
|
memory.Write(address + 0xe8, thread.Context.GetX(29));
|
|
memory.Write(address + 0xf0, thread.Context.GetX(30));
|
|
memory.Write(address + 0xf8, thread.Context.GetX(31));
|
|
|
|
memory.Write(address + 0x100, thread.LastPc);
|
|
|
|
memory.Write(address + 0x108, (ulong)GetPsr(thread.Context));
|
|
|
|
memory.Write(address + 0x110, thread.Context.GetV(0));
|
|
memory.Write(address + 0x120, thread.Context.GetV(1));
|
|
memory.Write(address + 0x130, thread.Context.GetV(2));
|
|
memory.Write(address + 0x140, thread.Context.GetV(3));
|
|
memory.Write(address + 0x150, thread.Context.GetV(4));
|
|
memory.Write(address + 0x160, thread.Context.GetV(5));
|
|
memory.Write(address + 0x170, thread.Context.GetV(6));
|
|
memory.Write(address + 0x180, thread.Context.GetV(7));
|
|
memory.Write(address + 0x190, thread.Context.GetV(8));
|
|
memory.Write(address + 0x1a0, thread.Context.GetV(9));
|
|
memory.Write(address + 0x1b0, thread.Context.GetV(10));
|
|
memory.Write(address + 0x1c0, thread.Context.GetV(11));
|
|
memory.Write(address + 0x1d0, thread.Context.GetV(12));
|
|
memory.Write(address + 0x1e0, thread.Context.GetV(13));
|
|
memory.Write(address + 0x1f0, thread.Context.GetV(14));
|
|
memory.Write(address + 0x200, thread.Context.GetV(15));
|
|
memory.Write(address + 0x210, thread.Context.GetV(16));
|
|
memory.Write(address + 0x220, thread.Context.GetV(17));
|
|
memory.Write(address + 0x230, thread.Context.GetV(18));
|
|
memory.Write(address + 0x240, thread.Context.GetV(19));
|
|
memory.Write(address + 0x250, thread.Context.GetV(20));
|
|
memory.Write(address + 0x260, thread.Context.GetV(21));
|
|
memory.Write(address + 0x270, thread.Context.GetV(22));
|
|
memory.Write(address + 0x280, thread.Context.GetV(23));
|
|
memory.Write(address + 0x290, thread.Context.GetV(24));
|
|
memory.Write(address + 0x2a0, thread.Context.GetV(25));
|
|
memory.Write(address + 0x2b0, thread.Context.GetV(26));
|
|
memory.Write(address + 0x2c0, thread.Context.GetV(27));
|
|
memory.Write(address + 0x2d0, thread.Context.GetV(28));
|
|
memory.Write(address + 0x2e0, thread.Context.GetV(29));
|
|
memory.Write(address + 0x2f0, thread.Context.GetV(30));
|
|
memory.Write(address + 0x300, thread.Context.GetV(31));
|
|
|
|
memory.Write(address + 0x310, (int)thread.Context.Fpcr);
|
|
memory.Write(address + 0x314, (int)thread.Context.Fpsr);
|
|
memory.Write(address + 0x318, thread.Context.Tpidr);
|
|
|
|
return KernelResult.Success;
|
|
}
|
|
|
|
private static int GetPsr(ARMeilleure.State.ExecutionContext context)
|
|
{
|
|
return (context.GetPstateFlag(ARMeilleure.State.PState.NFlag) ? (1 << (int)ARMeilleure.State.PState.NFlag) : 0) |
|
|
(context.GetPstateFlag(ARMeilleure.State.PState.ZFlag) ? (1 << (int)ARMeilleure.State.PState.ZFlag) : 0) |
|
|
(context.GetPstateFlag(ARMeilleure.State.PState.CFlag) ? (1 << (int)ARMeilleure.State.PState.CFlag) : 0) |
|
|
(context.GetPstateFlag(ARMeilleure.State.PState.VFlag) ? (1 << (int)ARMeilleure.State.PState.VFlag) : 0);
|
|
}
|
|
|
|
// Thread synchronization
|
|
|
|
public KernelResult WaitSynchronization(ulong handlesPtr, int handlesCount, long timeout, out int handleIndex)
|
|
{
|
|
handleIndex = 0;
|
|
|
|
if ((uint)handlesCount > KThread.MaxWaitSyncObjects)
|
|
{
|
|
return KernelResult.MaximumExceeded;
|
|
}
|
|
|
|
KThread currentThread = KernelStatic.GetCurrentThread();
|
|
|
|
var syncObjs = new Span<KSynchronizationObject>(currentThread.WaitSyncObjects).Slice(0, handlesCount);
|
|
|
|
if (handlesCount != 0)
|
|
{
|
|
KProcess currentProcess = KernelStatic.GetCurrentProcess();
|
|
|
|
if (currentProcess.MemoryManager.AddrSpaceStart > handlesPtr)
|
|
{
|
|
return KernelResult.UserCopyFailed;
|
|
}
|
|
|
|
long handlesSize = handlesCount * 4;
|
|
|
|
if (handlesPtr + (ulong)handlesSize <= handlesPtr)
|
|
{
|
|
return KernelResult.UserCopyFailed;
|
|
}
|
|
|
|
if (handlesPtr + (ulong)handlesSize - 1 > currentProcess.MemoryManager.AddrSpaceEnd - 1)
|
|
{
|
|
return KernelResult.UserCopyFailed;
|
|
}
|
|
|
|
Span<int> handles = new Span<int>(currentThread.WaitSyncHandles).Slice(0, handlesCount);
|
|
|
|
if (!KernelTransfer.UserToKernelInt32Array(_context, handlesPtr, handles))
|
|
{
|
|
return KernelResult.UserCopyFailed;
|
|
}
|
|
|
|
int processedHandles = 0;
|
|
|
|
for (; processedHandles < handlesCount; processedHandles++)
|
|
{
|
|
KSynchronizationObject syncObj = currentProcess.HandleTable.GetObject<KSynchronizationObject>(handles[processedHandles]);
|
|
|
|
if (syncObj == null)
|
|
{
|
|
break;
|
|
}
|
|
|
|
syncObjs[processedHandles] = syncObj;
|
|
|
|
syncObj.IncrementReferenceCount();
|
|
}
|
|
|
|
if (processedHandles != handlesCount)
|
|
{
|
|
// One or more handles are invalid.
|
|
for (int index = 0; index < processedHandles; index++)
|
|
{
|
|
currentThread.WaitSyncObjects[index].DecrementReferenceCount();
|
|
}
|
|
|
|
return KernelResult.InvalidHandle;
|
|
}
|
|
}
|
|
|
|
KernelResult result = _context.Synchronization.WaitFor(syncObjs, timeout, out handleIndex);
|
|
|
|
if (result == KernelResult.PortRemoteClosed)
|
|
{
|
|
result = KernelResult.Success;
|
|
}
|
|
|
|
for (int index = 0; index < handlesCount; index++)
|
|
{
|
|
currentThread.WaitSyncObjects[index].DecrementReferenceCount();
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
public KernelResult CancelSynchronization(int handle)
|
|
{
|
|
KProcess process = KernelStatic.GetCurrentProcess();
|
|
|
|
KThread thread = process.HandleTable.GetKThread(handle);
|
|
|
|
if (thread == null)
|
|
{
|
|
return KernelResult.InvalidHandle;
|
|
}
|
|
|
|
thread.CancelSynchronization();
|
|
|
|
return KernelResult.Success;
|
|
}
|
|
|
|
public KernelResult ArbitrateLock(int ownerHandle, ulong mutexAddress, int requesterHandle)
|
|
{
|
|
if (IsPointingInsideKernel(mutexAddress))
|
|
{
|
|
return KernelResult.InvalidMemState;
|
|
}
|
|
|
|
if (IsAddressNotWordAligned(mutexAddress))
|
|
{
|
|
return KernelResult.InvalidAddress;
|
|
}
|
|
|
|
KProcess currentProcess = KernelStatic.GetCurrentProcess();
|
|
|
|
return currentProcess.AddressArbiter.ArbitrateLock(ownerHandle, mutexAddress, requesterHandle);
|
|
}
|
|
|
|
public KernelResult ArbitrateUnlock(ulong mutexAddress)
|
|
{
|
|
if (IsPointingInsideKernel(mutexAddress))
|
|
{
|
|
return KernelResult.InvalidMemState;
|
|
}
|
|
|
|
if (IsAddressNotWordAligned(mutexAddress))
|
|
{
|
|
return KernelResult.InvalidAddress;
|
|
}
|
|
|
|
KProcess currentProcess = KernelStatic.GetCurrentProcess();
|
|
|
|
return currentProcess.AddressArbiter.ArbitrateUnlock(mutexAddress);
|
|
}
|
|
|
|
public KernelResult WaitProcessWideKeyAtomic(
|
|
ulong mutexAddress,
|
|
ulong condVarAddress,
|
|
int handle,
|
|
long timeout)
|
|
{
|
|
if (IsPointingInsideKernel(mutexAddress))
|
|
{
|
|
return KernelResult.InvalidMemState;
|
|
}
|
|
|
|
if (IsAddressNotWordAligned(mutexAddress))
|
|
{
|
|
return KernelResult.InvalidAddress;
|
|
}
|
|
|
|
KProcess currentProcess = KernelStatic.GetCurrentProcess();
|
|
|
|
return currentProcess.AddressArbiter.WaitProcessWideKeyAtomic(
|
|
mutexAddress,
|
|
condVarAddress,
|
|
handle,
|
|
timeout);
|
|
}
|
|
|
|
public KernelResult SignalProcessWideKey(ulong address, int count)
|
|
{
|
|
KProcess currentProcess = KernelStatic.GetCurrentProcess();
|
|
|
|
currentProcess.AddressArbiter.SignalProcessWideKey(address, count);
|
|
|
|
return KernelResult.Success;
|
|
}
|
|
|
|
public KernelResult WaitForAddress(ulong address, ArbitrationType type, int value, long timeout)
|
|
{
|
|
if (IsPointingInsideKernel(address))
|
|
{
|
|
return KernelResult.InvalidMemState;
|
|
}
|
|
|
|
if (IsAddressNotWordAligned(address))
|
|
{
|
|
return KernelResult.InvalidAddress;
|
|
}
|
|
|
|
KProcess currentProcess = KernelStatic.GetCurrentProcess();
|
|
|
|
return type switch
|
|
{
|
|
ArbitrationType.WaitIfLessThan
|
|
=> currentProcess.AddressArbiter.WaitForAddressIfLessThan(address, value, false, timeout),
|
|
ArbitrationType.DecrementAndWaitIfLessThan
|
|
=> currentProcess.AddressArbiter.WaitForAddressIfLessThan(address, value, true, timeout),
|
|
ArbitrationType.WaitIfEqual
|
|
=> currentProcess.AddressArbiter.WaitForAddressIfEqual(address, value, timeout),
|
|
_ => KernelResult.InvalidEnumValue,
|
|
};
|
|
}
|
|
|
|
public KernelResult SignalToAddress(ulong address, SignalType type, int value, int count)
|
|
{
|
|
if (IsPointingInsideKernel(address))
|
|
{
|
|
return KernelResult.InvalidMemState;
|
|
}
|
|
|
|
if (IsAddressNotWordAligned(address))
|
|
{
|
|
return KernelResult.InvalidAddress;
|
|
}
|
|
|
|
KProcess currentProcess = KernelStatic.GetCurrentProcess();
|
|
|
|
return type switch
|
|
{
|
|
SignalType.Signal
|
|
=> currentProcess.AddressArbiter.Signal(address, count),
|
|
SignalType.SignalAndIncrementIfEqual
|
|
=> currentProcess.AddressArbiter.SignalAndIncrementIfEqual(address, value, count),
|
|
SignalType.SignalAndModifyIfEqual
|
|
=> currentProcess.AddressArbiter.SignalAndModifyIfEqual(address, value, count),
|
|
_ => KernelResult.InvalidEnumValue
|
|
};
|
|
}
|
|
|
|
private bool IsPointingInsideKernel(ulong address)
|
|
{
|
|
return (address + 0x1000000000) < 0xffffff000;
|
|
}
|
|
|
|
private bool IsAddressNotWordAligned(ulong address)
|
|
{
|
|
return (address & 3) != 0;
|
|
}
|
|
}
|
|
}
|