public static KMemoryRegionManager[] GetMemoryRegions(MemorySize size, MemoryArrange arrange)
{
ulong poolEnd = KSystemControl.GetDramEndAddress(size);
ulong applicationPoolSize = KSystemControl.GetApplicationPoolSize(arrange);
ulong appletPoolSize = KSystemControl.GetAppletPoolSize(arrange);
MemoryRegion servicePool;
MemoryRegion nvServicesPool;
MemoryRegion appletPool;
MemoryRegion applicationPool;
ulong nvServicesPoolSize = KSystemControl.GetMinimumNonSecureSystemPoolSize();
applicationPool = new MemoryRegion(poolEnd - applicationPoolSize, applicationPoolSize);
ulong nvServicesPoolEnd = applicationPool.Address - appletPoolSize;
nvServicesPool = new MemoryRegion(nvServicesPoolEnd - nvServicesPoolSize, nvServicesPoolSize);
appletPool = new MemoryRegion(nvServicesPoolEnd, appletPoolSize);
// Note: There is an extra region used by the kernel, however
// since we are doing HLE we are not going to use that memory, so give all
// the remaining memory space to services.
ulong servicePoolSize = nvServicesPool.Address - DramMemoryMap.SlabHeapEnd;
servicePool = new MemoryRegion(DramMemoryMap.SlabHeapEnd, servicePoolSize);
return(new KMemoryRegionManager[]
{
GetMemoryRegion(applicationPool),
GetMemoryRegion(appletPool),
GetMemoryRegion(servicePool),
GetMemoryRegion(nvServicesPool)
});
}
public KernelContext(
ITickSource tickSource,
Switch device,
MemoryBlock memory,
MemorySize memorySize,
MemoryArrange memoryArrange)
{
TickSource = tickSource;
Device = device;
Memory = memory;
Running = true;
Syscall = new Syscall(this);
SyscallHandler = new SyscallHandler(this);
ResourceLimit = new KResourceLimit(this);
KernelInit.InitializeResourceLimit(ResourceLimit, memorySize);
MemoryManager = new KMemoryManager(memorySize, memoryArrange);
LargeMemoryBlockSlabManager = new KMemoryBlockSlabManager(KernelConstants.MemoryBlockAllocatorSize * 2);
SmallMemoryBlockSlabManager = new KMemoryBlockSlabManager(KernelConstants.MemoryBlockAllocatorSize);
UserSlabHeapPages = new KSlabHeap(
KernelConstants.UserSlabHeapBase,
KernelConstants.UserSlabHeapItemSize,
KernelConstants.UserSlabHeapSize);
memory.Commit(KernelConstants.UserSlabHeapBase - DramMemoryMap.DramBase, KernelConstants.UserSlabHeapSize);
CriticalSection = new KCriticalSection(this);
Schedulers = new KScheduler[KScheduler.CpuCoresCount];
PriorityQueue = new KPriorityQueue();
TimeManager = new KTimeManager(this);
Synchronization = new KSynchronization(this);
ContextIdManager = new KContextIdManager();
for (int core = 0; core < KScheduler.CpuCoresCount; core++)
{
Schedulers[core] = new KScheduler(this, core);
}
StartPreemptionThread();
KernelInitialized = true;
Processes = new ConcurrentDictionary <ulong, KProcess>();
AutoObjectNames = new ConcurrentDictionary <string, KAutoObject>();
_kipId = KernelConstants.InitialKipId;
_processId = KernelConstants.InitialProcessId;
}
public static ulong GetApplicationPoolSize(MemoryArrange arrange)
{
return(arrange switch
{
MemoryArrange.MemoryArrange4GB or
MemoryArrange.MemoryArrange4GBSystemDev or
MemoryArrange.MemoryArrange6GBAppletDev => 3285 *Mb,
MemoryArrange.MemoryArrange4GBAppletDev => 2048 *Mb,
MemoryArrange.MemoryArrange6GB or
MemoryArrange.MemoryArrange8GB => 4916 *Mb,
_ => throw new ArgumentException($"Invalid memory arrange \"{arrange}\".")
});
public KMemoryManager(MemorySize size, MemoryArrange arrange)
{
MemoryRegions = KernelInit.GetMemoryRegions(size, arrange);
}