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Dedicated Idle process and thread initialization with dynamic affinity allocation

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This commit is contained in:
Aiken Harris
2026-06-04 11:23:47 +02:00
parent 34aba8c7c7
commit 1d2d66fc83
7 changed files with 184 additions and 47 deletions
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35
xtoskrnl/ke/i686/krnlinit.cc
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@@ -26,6 +26,8 @@ VOID
KE::KernelInit::BootstrapApplicationProcessor(IN PPROCESSOR_START_BLOCK StartBlock)
{
PKPROCESSOR_CONTROL_BLOCK ControlBlock;
PKPROCESS IdleProcess;
PKTHREAD IdleThread;
/* Initialize application CPU */
AR::ProcessorSupport::InitializeProcessor(StartBlock->ProcessorStructures);
@@ -57,6 +59,15 @@ KE::KernelInit::BootstrapApplicationProcessor(IN PPROCESSOR_START_BLOCK StartBlo
/* Initialize local clock for this CPU */
HL::Timer::InitializeLocalClock();
/* Allocate and wipe memory for Idle thread */
MM::Allocator::AllocatePool(NonPagedPool, sizeof(KTHREAD), (PVOID *)&IdleThread);
RTL::Memory::ZeroMemory(IdleThread, sizeof(KTHREAD));
/* Initialize Idle thread */
IdleProcess = KE::KProcess::GetIdleProcess();
ControlBlock->CurrentThread = IdleThread;
KE::KThread::InitializeIdleThread(IdleProcess, IdleThread, ControlBlock, StartBlock->Stack);
/* Register DISPATCH interrupt handler */
HL::Irq::RegisterSystemInterruptHandler(APIC_VECTOR_DPC, KE::Dispatcher::HandleDispatchInterrupt);
@@ -106,30 +117,18 @@ KE::KernelInit::BootstrapKernel(VOID)
/* Initialize XTOS kernel */
InitializeKernel();
/* Initialize Idle process */
PageDirectory[0] = 0;
PageDirectory[1] = 0;
KE::KProcess::InitializeProcess(CurrentProcess, 0, MAXULONG_PTR, PageDirectory, FALSE);
CurrentProcess->Quantum = MAXCHAR;
/* Initialize Idle thread */
KE::KThread::InitializeThread(CurrentProcess, CurrentThread, NULLPTR, NULLPTR, NULLPTR,
NULLPTR, NULLPTR, AR::ProcessorSupport::GetBootStack(), TRUE);
CurrentThread->NextProcessor = Prcb->CpuNumber;
CurrentThread->Priority = THREAD_HIGH_PRIORITY;
CurrentThread->State = Running;
CurrentThread->Affinity.Count = 1;
CurrentThread->Affinity.Size = 1;
CurrentThread->Affinity.Bitmap[0] = (KAFFINITY)1 << Prcb->CpuNumber;
CurrentThread->WaitRunLevel = DISPATCH_LEVEL;
CurrentProcess->ActiveProcessors.Bitmap[0] |= (KAFFINITY)1 << Prcb->CpuNumber;
/* Initialize Memory Manager */
MM::Manager::InitializeMemoryManager();
/* Enable shadow buffer for framebuffer */
HL::FrameBuffer::EnableShadowBuffer();
/* Initialize Idle process and Idle thread */
PageDirectory[0] = 0;
PageDirectory[1] = 0;
KE::KProcess::InitializeIdleProcess(CurrentProcess, PageDirectory);
KE::KThread::InitializeIdleThread(CurrentProcess, CurrentThread, Prcb, AR::ProcessorSupport::GetBootStack());
/* Start all application processors */
KE::Processor::InitializeProcessorBlocks();
HL::Cpu::StartAllProcessors();