#include <hal.h>
#include <acpi.h>
#include <smp.h>
#include <debug.h>

Include dependency graph for madt.c:

Macros
#define	NDEBUG

Functions
VOID	HalpParseApicTables (_In_ PLOADER_PARAMETER_BLOCK LoaderBlock)

VOID	HalpPrintApicTables (VOID)

Variables
PROCESSOR_IDENTITY	HalpStaticProcessorIdentity [MAXIMUM_PROCESSORS] = {{0}}

PPROCESSOR_IDENTITY	HalpProcessorIdentity = NULL

HALP_APIC_INFO_TABLE	HalpApicInfoTable

ACPI_TABLE_MADT *	MadtTable

ACPI_SUBTABLE_HEADER *	AcpiHeader

ACPI_MADT_LOCAL_APIC *	LocalApic

Macro Definition Documentation

◆ NDEBUG

#define NDEBUG

Definition at line 15 of file madt.c.

Function Documentation

◆ HalpParseApicTables()

VOID HalpParseApicTables ( _In_ PLOADER_PARAMETER_BLOCK LoaderBlock )

Definition at line 30 of file madt.c.

{
    ULONG_PTR TableEnd;
    ULONG ValidProcessorCount;
 
    /* We only support legacy APIC for now, this will be updated in the future */
    HalpApicInfoTable.ApicMode = 0x10;
    MadtTable = HalAcpiGetTable(LoaderBlock, 'CIPA');
 
    AcpiHeader = (ACPI_SUBTABLE_HEADER*)MadtTable;
    AcpiHeader->Length = sizeof(ACPI_TABLE_MADT);
    TableEnd = (ULONG_PTR)MadtTable + MadtTable->Header.Length;
 
    HalpApicInfoTable.ProcessorCount = 0;
    HalpProcessorIdentity = HalpStaticProcessorIdentity;
 
    AcpiHeader = (ACPI_SUBTABLE_HEADER*)MadtTable;
    AcpiHeader->Length = sizeof(ACPI_TABLE_MADT);
    TableEnd = (ULONG_PTR)MadtTable + MadtTable->Header.Length;
 
    while ((ULONG_PTR)AcpiHeader <= TableEnd)
    {
        LocalApic = (ACPI_MADT_LOCAL_APIC*)AcpiHeader;
 
        if (LocalApic->Header.Type == ACPI_MADT_TYPE_LOCAL_APIC &&
            LocalApic->Header.Length == sizeof(ACPI_MADT_LOCAL_APIC))
        {
            ValidProcessorCount = HalpApicInfoTable.ProcessorCount;
 
            HalpProcessorIdentity[ValidProcessorCount].LapicId = LocalApic->Id;
            HalpProcessorIdentity[ValidProcessorCount].ProcessorId = LocalApic->ProcessorId;
 
            HalpApicInfoTable.ProcessorCount++;
 
            AcpiHeader = (ACPI_SUBTABLE_HEADER*)((ULONG_PTR)AcpiHeader + AcpiHeader->Length);
        }
        else
        {
            /* End the parsing early if we don't use the currently selected table */
            AcpiHeader = (ACPI_SUBTABLE_HEADER*)((ULONG_PTR)AcpiHeader + 1);
        }
    }
}

Referenced by HalpInitProcessor().

◆ HalpPrintApicTables()

VOID HalpPrintApicTables ( VOID )

Definition at line 76 of file madt.c.

{ 
    UINT32 i;
 
    DPRINT1("HAL has detected a physical processor count of: %d\n", HalpApicInfoTable.ProcessorCount);
    for (i = 0; i < HalpApicInfoTable.ProcessorCount; i++)
    {
        DPRINT1("Information about the following processor is for processors number: %d\n"
                "   The BSPCheck is set to: %X\n"
                "   The LapicID is set to: %X\n",
                i, HalpProcessorIdentity[i].BSPCheck, HalpProcessorIdentity[i].LapicId);
    }
}