mirror of
https://github.com/reactos/reactos.git
synced 2024-09-21 10:07:17 +00:00
2c8d083fc0
Especially HalpParseApicTables() which looked early-WIP and was buggy. And keep smp/mps/mps.c in sync'.
263 lines
9 KiB
C
263 lines
9 KiB
C
/*
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* PROJECT: ReactOS Kernel
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* LICENSE: GPL-2.0-or-later (https://spdx.org/licenses/GPL-2.0-or-later)
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* PURPOSE: Source File for MADT Table parsing
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* COPYRIGHT: Copyright 2021 Justin Miller <justinmiller100@gmail.com>
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* Copyright 2023 Serge Gautherie <reactos-git_serge_171003@gautherie.fr>
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*/
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/* INCLUDES *******************************************************************/
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#include <hal.h>
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#include <acpi.h>
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/* ACPI_BIOS_ERROR defined in acoutput.h and bugcodes.h */
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#undef ACPI_BIOS_ERROR
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#include <smp.h>
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#define NDEBUG
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#include <debug.h>
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// See HalpParseApicTables(). Only enable this to local-debug it.
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// That needs, for example, to test-call the function later or to use the "FrLdrDbgPrint" hack.
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#if DBG && 0
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#define DPRINT01 DPRINT1
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#define DPRINT00 DPRINT
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#else
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#if defined(_MSC_VER)
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#define DPRINT01 __noop
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#define DPRINT00 __noop
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#else
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#define DPRINT01(...) do { if(0) { DbgPrint(__VA_ARGS__); } } while(0)
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#define DPRINT00(...) do { if(0) { DbgPrint(__VA_ARGS__); } } while(0)
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#endif // _MSC_VER
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#endif // DBG && 0
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/* GLOBALS ********************************************************************/
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HALP_APIC_INFO_TABLE HalpApicInfoTable;
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// ACPI_MADT_LOCAL_APIC.LapicFlags masks
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#define LAPIC_FLAG_ENABLED 0x00000001
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#define LAPIC_FLAG_ONLINE_CAPABLE 0x00000002
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// Bits 2-31 are reserved.
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static PROCESSOR_IDENTITY HalpStaticProcessorIdentity[MAXIMUM_PROCESSORS];
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const PPROCESSOR_IDENTITY HalpProcessorIdentity = HalpStaticProcessorIdentity;
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#if 0
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extern ULONG HalpPicVectorRedirect[16];
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#endif
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/* FUNCTIONS ******************************************************************/
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// Note: HalpParseApicTables() is called early, so its DPRINT*() do nothing.
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VOID
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HalpParseApicTables(
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_In_ PLOADER_PARAMETER_BLOCK LoaderBlock)
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{
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ACPI_TABLE_MADT *MadtTable;
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ACPI_SUBTABLE_HEADER *AcpiHeader;
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ULONG_PTR TableEnd;
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MadtTable = HalAcpiGetTable(LoaderBlock, APIC_SIGNATURE);
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if (!MadtTable)
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{
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DPRINT01("MADT table not found\n");
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return;
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}
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if (MadtTable->Header.Length < sizeof(*MadtTable))
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{
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DPRINT01("Length is too short: %p, %u\n", MadtTable, MadtTable->Header.Length);
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return;
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}
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DPRINT00("MADT table: Address %08X, Flags %08X\n", MadtTable->Address, MadtTable->Flags);
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#if 1
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// TODO: We support only legacy APIC for now
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HalpApicInfoTable.ApicMode = HALP_APIC_MODE_LEGACY;
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// TODO: What about 'MadtTable->Flags & ACPI_MADT_PCAT_COMPAT'?
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#else // TODO: Is that correct?
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if ((MadtTable->Flags & ACPI_MADT_PCAT_COMPAT) == ACPI_MADT_DUAL_PIC)
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{
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HalpApicInfoTable.ApicMode = HALP_APIC_MODE_LEGACY;
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}
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else // if ((MadtTable->Flags & ACPI_MADT_PCAT_COMPAT) == ACPI_MADT_MULTIPLE_APIC)
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{
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#if 1
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DPRINT01("ACPI_MADT_MULTIPLE_APIC support is UNIMPLEMENTED\n");
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return;
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#else
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HalpApicInfoTable.ApicMode = HALP_APIC_MODE_xyz;
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#endif
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}
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#endif
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HalpApicInfoTable.LocalApicPA = MadtTable->Address;
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AcpiHeader = (ACPI_SUBTABLE_HEADER *)((ULONG_PTR)MadtTable + sizeof(*MadtTable));
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TableEnd = (ULONG_PTR)MadtTable + MadtTable->Header.Length;
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DPRINT00(" MadtTable %p, subtables %p - %p\n", MadtTable, AcpiHeader, (PVOID)TableEnd);
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while ((ULONG_PTR)(AcpiHeader + 1) <= TableEnd)
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{
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if (AcpiHeader->Length < sizeof(*AcpiHeader))
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{
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DPRINT01("Length is too short: %p, %u\n", AcpiHeader, AcpiHeader->Length);
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return;
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}
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if ((ULONG_PTR)AcpiHeader + AcpiHeader->Length > TableEnd)
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{
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DPRINT01("Length mismatch: %p, %u, %p\n",
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AcpiHeader, AcpiHeader->Length, (PVOID)TableEnd);
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return;
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}
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switch (AcpiHeader->Type)
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{
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case ACPI_MADT_TYPE_LOCAL_APIC:
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{
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ACPI_MADT_LOCAL_APIC *LocalApic = (ACPI_MADT_LOCAL_APIC *)AcpiHeader;
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if (AcpiHeader->Length != sizeof(*LocalApic))
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{
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DPRINT01("Type/Length mismatch: %p, %u\n", AcpiHeader, AcpiHeader->Length);
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return;
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}
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DPRINT00(" Local Apic, Processor %lu: ProcessorId %u, Id %u, LapicFlags %08X\n",
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HalpApicInfoTable.ProcessorCount,
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LocalApic->ProcessorId, LocalApic->Id, LocalApic->LapicFlags);
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if (!(LocalApic->LapicFlags & (LAPIC_FLAG_ONLINE_CAPABLE | LAPIC_FLAG_ENABLED)))
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{
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DPRINT00(" Ignored: unusable\n");
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break;
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}
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if (HalpApicInfoTable.ProcessorCount == _countof(HalpStaticProcessorIdentity))
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{
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DPRINT00(" Skipped: array is full\n");
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// We assume ignoring this processor is acceptable, until proven otherwise.
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break;
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}
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// Note: ProcessorId and Id are not validated in any way (yet).
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HalpProcessorIdentity[HalpApicInfoTable.ProcessorCount].ProcessorId =
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LocalApic->ProcessorId;
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HalpProcessorIdentity[HalpApicInfoTable.ProcessorCount].LapicId = LocalApic->Id;
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HalpApicInfoTable.ProcessorCount++;
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break;
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}
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case ACPI_MADT_TYPE_IO_APIC:
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{
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ACPI_MADT_IO_APIC *IoApic = (ACPI_MADT_IO_APIC *)AcpiHeader;
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if (AcpiHeader->Length != sizeof(*IoApic))
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{
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DPRINT01("Type/Length mismatch: %p, %u\n", AcpiHeader, AcpiHeader->Length);
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return;
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}
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DPRINT00(" Io Apic: Id %u, Address %08X, GlobalIrqBase %08X\n",
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IoApic->Id, IoApic->Address, IoApic->GlobalIrqBase);
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// Ensure HalpApicInfoTable.IOAPICCount consistency.
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if (HalpApicInfoTable.IoApicPA[IoApic->Id] != 0)
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{
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DPRINT01("Id duplication: %p, %u\n", IoApic, IoApic->Id);
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return;
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}
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// Note: Address and GlobalIrqBase are not validated in any way (yet).
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HalpApicInfoTable.IoApicPA[IoApic->Id] = IoApic->Address;
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HalpApicInfoTable.IoApicIrqBase[IoApic->Id] = IoApic->GlobalIrqBase;
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HalpApicInfoTable.IOAPICCount++;
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break;
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}
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case ACPI_MADT_TYPE_INTERRUPT_OVERRIDE:
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{
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ACPI_MADT_INTERRUPT_OVERRIDE *InterruptOverride =
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(ACPI_MADT_INTERRUPT_OVERRIDE *)AcpiHeader;
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if (AcpiHeader->Length != sizeof(*InterruptOverride))
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{
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DPRINT01("Type/Length mismatch: %p, %u\n", AcpiHeader, AcpiHeader->Length);
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return;
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}
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DPRINT00(" Interrupt Override: Bus %u, SourceIrq %u, GlobalIrq %08X, IntiFlags %04X / UNIMPLEMENTED\n",
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InterruptOverride->Bus, InterruptOverride->SourceIrq,
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InterruptOverride->GlobalIrq, InterruptOverride->IntiFlags);
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if (InterruptOverride->Bus != 0) // 0 = ISA
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{
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DPRINT01("Invalid Bus: %p, %u\n", InterruptOverride, InterruptOverride->Bus);
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return;
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}
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#if 1
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// TODO: Implement it.
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#else // TODO: Is that correct?
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if (InterruptOverride->SourceIrq > _countof(HalpPicVectorRedirect))
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{
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DPRINT01("Invalid SourceIrq: %p, %u\n",
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InterruptOverride, InterruptOverride->SourceIrq);
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return;
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}
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// Note: GlobalIrq is not validated in any way (yet).
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HalpPicVectorRedirect[InterruptOverride->SourceIrq] = InterruptOverride->GlobalIrq;
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// TODO: What about 'InterruptOverride->IntiFlags'?
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#endif
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break;
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}
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default:
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{
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DPRINT01(" UNIMPLEMENTED: Type %u, Length %u\n",
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AcpiHeader->Type, AcpiHeader->Length);
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return;
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}
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}
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AcpiHeader = (ACPI_SUBTABLE_HEADER *)((ULONG_PTR)AcpiHeader + AcpiHeader->Length);
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}
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if ((ULONG_PTR)AcpiHeader != TableEnd)
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{
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DPRINT01("Length mismatch: %p, %p, %p\n", MadtTable, AcpiHeader, (PVOID)TableEnd);
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return;
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}
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}
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VOID
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HalpPrintApicTables(VOID)
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{
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#if DBG
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ULONG i;
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DPRINT1("Physical processor count: %lu\n", HalpApicInfoTable.ProcessorCount);
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for (i = 0; i < HalpApicInfoTable.ProcessorCount; i++)
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{
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DPRINT1(" Processor %lu: ProcessorId %u, LapicId %u, ProcessorStarted %u, BSPCheck %u, ProcessorPrcb %p\n",
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i,
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HalpProcessorIdentity[i].ProcessorId,
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HalpProcessorIdentity[i].LapicId,
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HalpProcessorIdentity[i].ProcessorStarted,
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HalpProcessorIdentity[i].BSPCheck,
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HalpProcessorIdentity[i].ProcessorPrcb);
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}
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#endif
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}
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