Esempio n. 1
0
        private void InitializeAp(Processor processor)
        {
//            Thread.BindKernelThread(nextKernelThread,
//                                    nextKernelStackBegin,
//                                    nextKernelStackLimit);

            // Fleeting check that allocator works.
            Object o = new Object();

            if (o == null)
            {
                DebugStub.Break();
            }

            halPic.Initialize();
            halTimer.Initialize();
            processor.AddPic(halPic);
            processor.AddTimer(halTimer.Interrupt, halTimer);
            processor.AddClock(halClock.Interrupt, halClock);

            SetMpSyncState(MpSyncState.ApOnline);
            WaitForMpSyncState(MpSyncState.BspWaitingForApCalibration);

            // Calibrate timers
            ulong t1 = Processor.CycleCount;

            Calibrate.CpuCycleCounter(pmTimer);
            Calibrate.ApicTimer(pmTimer, halTimer);
            ulong t2 = Processor.CycleCount;

            Tracing.Log(Tracing.Audit, "Calibration time {0}",
                        new UIntPtr((uint)(t2 - t1)));

            SetMpSyncState(MpSyncState.ApCalibrationDone);

            bool success = false;

            WaitForMpSyncState(MpSyncState.BspWaitingApRunning, 100000,
                               ref success);

            SetMpSyncState(MpSyncState.ApRunning);

            halTimer.Start();
        }
Esempio n. 2
0
        private void InitializeBsp(Processor rootProcessor)
        {
            DebugStub.Print("HalDevicesApic.Initialize()\n");

            pmTimer = AcpiTables.GetPMTimer();

            // Get PIC resources.  Pic is masked by default.
            PnpConfig picConfig
                = (PnpConfig)IoSystem.YieldResources("/pnp/PNP0000", typeof(PicStub));

            pic = new PicStub(picConfig);
            pic.Initialize(PicBaseVector);

            // Parse MP Table and create IO apics
            MpResources.ParseMpTables();
            ioApics = IoApic.CreateIOApics();

            halPic = new Apic(ioApics);
            halPic.Initialize(ApicBaseVector);

            // Apic timer is used to provide one-shot timer interrupts.
            halTimer = new ApicTimer(halPic);
            halTimer.Initialize();

            // Calibrate timers
            Calibrate.CpuCycleCounter(pmTimer);
            Calibrate.ApicTimer(pmTimer, halTimer);

            // Legacy timer is used to time stalls when starting CPUs.
            PnpConfig i8254Config
                = (PnpConfig)IoSystem.YieldResources("/pnp/PNP0100", typeof(Timer8254Apic));

            stallTimer = new Timer8254Apic(i8254Config);

            // Real-time clock
            PnpConfig rtClockConfig
                = (PnpConfig)IoSystem.YieldResources("/pnp/PNP0B00", typeof(RTClockApic));

            rtClock = new RTClockApic(rtClockConfig, halPic);

            // Compose our HalClock from the component clocks we have available
            halClock = new HalClockApic(halPic, rtClock, new PMClock(pmTimer));

            SystemClock.Initialize(halClock, TimeSpan.FromHours(8).Ticks);

            rootProcessor.AddPic(halPic);

            rootProcessor.AddTimer(halTimer.Interrupt, halTimer);
            rootProcessor.AddClock(halClock.Interrupt, halClock);

            InitializeProcessorCount();
            DebugReportProcessors();

            halTimer.Start();

            // Get the screen resources.  Since we have metadata above to
            // declare all fixed resources used by the screen,
            // YieldResources("") will keep the resource tracking correct:

            halScreen      = new HalScreenDirect(IoSystem.YieldResources("", typeof(HalScreen)));
            Console.Screen = (HalScreen)halScreen;

            halPic.DumpState();
            foreach (IoApic ioApic in ioApics)
            {
                ioApic.DumpRedirectionEntries();
            }
            pic.DumpRegisters();
        }