Better process implementation (#491)

* Initial implementation of KProcess

* Some improvements to the memory manager, implement back guest stack trace printing

* Better GetInfo implementation, improve checking in some places with information from process capabilities

* Allow the cpu to read/write from the correct memory locations for accesses crossing a page boundary

* Change long -> ulong for address/size on memory related methods to avoid unnecessary casts

* Attempt at implementing ldr:ro with new KProcess

* Allow BSS with size 0 on ldr:ro

* Add checking for memory block slab heap usage, return errors if full, exit gracefully

* Use KMemoryBlockSize const from KMemoryManager

* Allow all methods to read from non-contiguous locations

* Fix for TransactParcelAuto

* Address PR feedback, additionally fix some small issues related to the KIP loader and implement SVCs GetProcessId, GetProcessList, GetSystemInfo, CreatePort and ManageNamedPort

* Fix wrong check for source pages count from page list on MapPhysicalMemory

* Fix some issues with UnloadNro on ldr:ro

1 files changed, 6 insertions, 156 deletions

diff --git a/Ryujinx.HLE/Loaders/Npdm/KernelAccessControl.cs b/Ryujinx.HLE/Loaders/Npdm/KernelAccessControl.cs
index 0b45ebfb..cd3d3252 100644
--- a/Ryujinx.HLE/Loaders/Npdm/KernelAccessControl.cs
+++ b/Ryujinx.HLE/Loaders/Npdm/KernelAccessControl.cs
@@ -1,173 +1,23 @@
-using Ryujinx.HLE.Exceptions;

-using System;

-using System.Collections.ObjectModel;

-using System.IO;

+using System.IO;

 

 namespace Ryujinx.HLE.Loaders.Npdm

 {

     class KernelAccessControl

     {

-        public ReadOnlyCollection<KernelAccessControlItem> Items;

+        public int[] Capabilities { get; private set; }

 

         public KernelAccessControl(Stream Stream, int Offset, int Size)

         {

             Stream.Seek(Offset, SeekOrigin.Begin);

 

-            BinaryReader Reader = new BinaryReader(Stream);

+            Capabilities = new int[Size / 4];

 

-            KernelAccessControlItem[] Items = new KernelAccessControlItem[Size / 4];

+            BinaryReader Reader = new BinaryReader(Stream);

 

-            for (int Index = 0; Index < Size / 4; Index++)

+            for (int Index = 0; Index < Capabilities.Length; Index++)

             {

-                uint Descriptor = Reader.ReadUInt32();

-

-                //Ignore the descriptor.

-                if (Descriptor == 0xffffffff)

-                {

-                    continue;

-                }

-

-                Items[Index] = new KernelAccessControlItem();

-

-                int LowBits = 0;

-

-                while ((Descriptor & 1) != 0)

-                {

-                    Descriptor >>= 1;

-

-                    LowBits++;

-                }

-

-                Descriptor >>= 1;

-

-                switch (LowBits)

-                {

-                    //Kernel flags.

-                    case 3:

-                    {

-                        Items[Index].HasKernelFlags = true;

-

-                        Items[Index].HighestThreadPriority = (Descriptor >> 0)  & 0x3f;

-                        Items[Index].LowestThreadPriority  = (Descriptor >> 6)  & 0x3f;

-                        Items[Index].LowestCpuId           = (Descriptor >> 12) & 0xff;

-                        Items[Index].HighestCpuId          = (Descriptor >> 20) & 0xff;

-

-                        break;

-                    }

-

-                    //Syscall mask.

-                    case 4:

-                    {

-                        Items[Index].HasSvcFlags = true;

-

-                        Items[Index].AllowedSvcs = new bool[0x80];

-

-                        int SysCallBase = (int)(Descriptor >> 24) * 0x18;

-

-                        for (int SysCall = 0; SysCall < 0x18 && SysCallBase + SysCall < 0x80; SysCall++)

-                        {

-                            Items[Index].AllowedSvcs[SysCallBase + SysCall] = (Descriptor & 1) != 0;

-

-                            Descriptor >>= 1;

-                        }

-

-                        break;

-                    }

-

-                    //Map IO/Normal.

-                    case 6:

-                    {

-                        ulong Address = (Descriptor & 0xffffff) << 12;

-                        bool  IsRo    = (Descriptor >> 24) != 0;

-

-                        if (Index == Size / 4 - 1)

-                        {

-                            throw new InvalidNpdmException("Invalid Kernel Access Control Descriptors!");

-                        }

-

-                        Descriptor = Reader.ReadUInt32();

-

-                        if ((Descriptor & 0x7f) != 0x3f)

-                        {

-                            throw new InvalidNpdmException("Invalid Kernel Access Control Descriptors!");

-                        }

-

-                        Descriptor >>= 7;

-

-                        ulong MmioSize = (Descriptor & 0xffffff) << 12;

-                        bool  IsNormal = (Descriptor >> 24) != 0;

-

-                        Items[Index].NormalMmio.Add(new KernelAccessControlMmio(Address, MmioSize, IsRo, IsNormal));

-

-                        Index++;

-

-                        break;

-                    }

-

-                    //Map Normal Page.

-                    case 7:

-                    {

-                        ulong Address = Descriptor << 12;

-

-                        Items[Index].PageMmio.Add(new KernelAccessControlMmio(Address, 0x1000, false, false));

-

-                        break;

-                    }

-

-                    //IRQ Pair.

-                    case 11:

-                    {

-                        Items[Index].Irq.Add(new KernelAccessControlIrq(

-                            (Descriptor >> 0)  & 0x3ff,

-                            (Descriptor >> 10) & 0x3ff));

-

-                        break;

-                    }

-

-                    //Application Type.

-                    case 13:

-                    {

-                        Items[Index].HasApplicationType = true;

-

-                        Items[Index].ApplicationType = (int)Descriptor & 7;

-

-                        break;

-                    }

-

-                    //Kernel Release Version.

-                    case 14:

-                    {

-                        Items[Index].HasKernelVersion = true;

-

-                        Items[Index].KernelVersionRelease = (int)Descriptor;

-

-                        break;

-                    }

-

-                    //Handle Table Size.

-                    case 15:

-                    {

-                        Items[Index].HasHandleTableSize = true;

-

-                        Items[Index].HandleTableSize = (int)Descriptor;

-

-                        break;

-                    }

-

-                    //Debug Flags.

-                    case 16:

-                    {

-                        Items[Index].HasDebugFlags = true;

-

-                        Items[Index].AllowDebug = ((Descriptor >> 0) & 1) != 0;

-                        Items[Index].ForceDebug = ((Descriptor >> 1) & 1) != 0;

-

-                        break;

-                    }

-                }

+                Capabilities[Index] = Reader.ReadInt32();

             }

-

-            this.Items = Array.AsReadOnly(Items);

         }

     }

 }