forked from xt-sys/exectos
80 lines
3.9 KiB
C++
80 lines
3.9 KiB
C++
/**
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* PROJECT: ExectOS
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* COPYRIGHT: See COPYING.md in the top level directory
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* FILE: xtoskrnl/includes/ar/i686/procsup.hh
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* DESCRIPTION: Architecture-specific routines for i686 processor initialization and system structure setup
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* DEVELOPERS: Aiken Harris <harraiken91@gmail.com>
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*/
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#ifndef __XTOSKRNL_AR_PROCSUP_HH
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#define __XTOSKRNL_AR_PROCSUP_HH
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#include <xtos.hh>
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/* Architecture-specific Library */
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namespace AR
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{
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class ProcSup
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{
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private:
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STATIC UCHAR BootStack[KERNEL_STACK_SIZE];
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STATIC UCHAR DoubleFaultTss[KTSS_IO_MAPS];
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STATIC UCHAR FaultStack[KERNEL_STACK_SIZE];
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STATIC KGDTENTRY InitialGdt[GDT_ENTRIES];
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STATIC KIDTENTRY InitialIdt[IDT_ENTRIES];
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STATIC KPROCESSOR_BLOCK InitialProcessorBlock;
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STATIC KTSS InitialTss;
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STATIC UCHAR NonMaskableInterruptTss[KTSS_IO_MAPS];
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public:
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STATIC XTAPI PVOID GetBootStack(VOID);
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STATIC XTAPI VOID InitializeProcessor(IN PVOID ProcessorStructures);
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private:
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STATIC XTAPI VOID IdentifyProcessor(VOID);
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STATIC XTAPI VOID InitializeGdt(IN PKPROCESSOR_BLOCK ProcessorBlock);
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STATIC XTAPI VOID InitializeIdt(IN PKPROCESSOR_BLOCK ProcessorBlock);
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STATIC XTAPI VOID InitializeProcessorBlock(OUT PKPROCESSOR_BLOCK ProcessorBlock,
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IN PKGDTENTRY Gdt,
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IN PKIDTENTRY Idt,
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IN PKTSS Tss,
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IN PVOID DpcStack);
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STATIC XTAPI VOID InitializeProcessorRegisters(VOID);
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STATIC XTAPI VOID InitializeProcessorStructures(IN PVOID ProcessorStructures,
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OUT PKGDTENTRY *Gdt,
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OUT PKTSS *Tss,
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OUT PKPROCESSOR_BLOCK *ProcessorBlock,
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OUT PVOID *KernelBootStack,
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OUT PVOID *KernelFaultStack);
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STATIC XTAPI VOID InitializeSegments(VOID);
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STATIC XTAPI VOID InitializeTss(IN PKPROCESSOR_BLOCK ProcessorBlock,
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IN PVOID KernelBootStack,
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IN PVOID KernelFaultStack);
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STATIC XTAPI VOID SetDoubleFaultTssEntry(IN PKPROCESSOR_BLOCK ProcessorBlock,
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IN PVOID KernelFaultStack);
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STATIC XTAPI VOID SetGdtEntry(IN PKGDTENTRY Gdt,
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IN USHORT Selector,
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IN ULONG_PTR Base,
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IN ULONG Limit,
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IN UCHAR Type,
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IN UCHAR Dpl,
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IN UCHAR SegmentMode);
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STATIC XTAPI VOID SetGdtEntryBase(IN PKGDTENTRY Gdt,
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IN USHORT Selector,
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IN ULONG_PTR Base);
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STATIC XTAPI VOID SetIdtGate(IN PKIDTENTRY Idt,
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IN USHORT Vector,
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IN PVOID Handler,
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IN USHORT Selector,
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IN USHORT Ist,
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IN USHORT Access);
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STATIC XTAPI VOID SetNonMaskableInterruptTssEntry(IN PKPROCESSOR_BLOCK ProcessorBlock,
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IN PVOID KernelFaultStack);
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};
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}
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#endif /* __XTOSKRNL_AR_PROCSUP_HH */
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