public static bool LoadKernelInitalProcess(Horizon system, KernelInitialProcess kip)
{
int endOffset = kip.DataOffset + kip.Data.Length;
if (kip.BssSize != 0)
{
endOffset = kip.BssOffset + kip.BssSize;
}
int codeSize = BitUtils.AlignUp(kip.TextOffset + endOffset, KMemoryManager.PageSize);
int codePagesCount = codeSize / KMemoryManager.PageSize;
ulong codeBaseAddress = kip.Addr39Bits ? 0x8000000UL : 0x200000UL;
ulong codeAddress = codeBaseAddress + (ulong)kip.TextOffset;
int mmuFlags = 0;
if (AslrEnabled)
{
//TODO: Randomization.
mmuFlags |= 0x20;
}
if (kip.Addr39Bits)
{
mmuFlags |= (int)AddressSpaceType.Addr39Bits << 1;
}
if (kip.Is64Bits)
{
mmuFlags |= 1;
}
ProcessCreationInfo creationInfo = new ProcessCreationInfo(
kip.Name,
kip.ProcessCategory,
kip.TitleId,
codeAddress,
codePagesCount,
mmuFlags,
0,
0);
MemoryRegion memoryRegion = kip.IsService
? MemoryRegion.Service
: MemoryRegion.Application;
KMemoryRegionManager region = system.MemoryRegions[(int)memoryRegion];
KernelResult result = region.AllocatePages((ulong)codePagesCount, false, out KPageList pageList);
if (result != KernelResult.Success)
{
Logger.PrintError(LogClass.Loader, $"Process initialization returned error \"{result}\".");
return(false);
}
KProcess process = new KProcess(system);
result = process.InitializeKip(
creationInfo,
kip.Capabilities,
pageList,
system.ResourceLimit,
memoryRegion);
if (result != KernelResult.Success)
{
Logger.PrintError(LogClass.Loader, $"Process initialization returned error \"{result}\".");
return(false);
}
result = LoadIntoMemory(process, kip, codeBaseAddress);
if (result != KernelResult.Success)
{
Logger.PrintError(LogClass.Loader, $"Process initialization returned error \"{result}\".");
return(false);
}
process.DefaultCpuCore = kip.DefaultProcessorId;
result = process.Start(kip.MainThreadPriority, (ulong)kip.MainThreadStackSize);
if (result != KernelResult.Success)
{
Logger.PrintError(LogClass.Loader, $"Process start returned error \"{result}\".");
return(false);
}
system.Processes.Add(process.Pid, process);
return(true);
}
public static bool LoadKernelInitalProcess(Horizon System, KernelInitialProcess Kip)
{
int EndOffset = Kip.DataOffset + Kip.Data.Length;
if (Kip.BssSize != 0)
{
EndOffset = Kip.BssOffset + Kip.BssSize;
}
int CodeSize = BitUtils.AlignUp(Kip.TextOffset + EndOffset, KMemoryManager.PageSize);
int CodePagesCount = CodeSize / KMemoryManager.PageSize;
ulong CodeBaseAddress = Kip.Addr39Bits ? 0x8000000UL : 0x200000UL;
ulong CodeAddress = CodeBaseAddress + (ulong)Kip.TextOffset;
int MmuFlags = 0;
if (AslrEnabled)
{
//TODO: Randomization.
MmuFlags |= 0x20;
}
if (Kip.Addr39Bits)
{
MmuFlags |= (int)AddressSpaceType.Addr39Bits << 1;
}
if (Kip.Is64Bits)
{
MmuFlags |= 1;
}
ProcessCreationInfo CreationInfo = new ProcessCreationInfo(
Kip.Name,
Kip.ProcessCategory,
Kip.TitleId,
CodeAddress,
CodePagesCount,
MmuFlags,
0,
0);
MemoryRegion MemRegion = Kip.IsService
? MemoryRegion.Service
: MemoryRegion.Application;
KMemoryRegionManager Region = System.MemoryRegions[(int)MemRegion];
KernelResult Result = Region.AllocatePages((ulong)CodePagesCount, false, out KPageList PageList);
if (Result != KernelResult.Success)
{
Logger.PrintError(LogClass.Loader, $"Process initialization returned error \"{Result}\".");
return(false);
}
KProcess Process = new KProcess(System);
Result = Process.InitializeKip(
CreationInfo,
Kip.Capabilities,
PageList,
System.ResourceLimit,
MemRegion);
if (Result != KernelResult.Success)
{
Logger.PrintError(LogClass.Loader, $"Process initialization returned error \"{Result}\".");
return(false);
}
Result = LoadIntoMemory(Process, Kip, CodeBaseAddress);
if (Result != KernelResult.Success)
{
Logger.PrintError(LogClass.Loader, $"Process initialization returned error \"{Result}\".");
return(false);
}
Result = Process.Start(Kip.MainThreadPriority, (ulong)Kip.MainThreadStackSize);
if (Result != KernelResult.Success)
{
Logger.PrintError(LogClass.Loader, $"Process start returned error \"{Result}\".");
return(false);
}
System.Processes.Add(Process.Pid, Process);
return(true);
}
