48 lines
1.2 KiB
C
48 lines
1.2 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/hl/x86/cpu.c
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* DESCRIPTION: HAL x86 (i686/AMD64) processor support
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* DEVELOPERS: Rafal Kupiec <belliash@codingworkshop.eu.org>
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*/
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#include <xtos.h>
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/**
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* Initializes the processor.
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*
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* @param CpuNumber
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* Supplies the number of the CPU, that is being initialized.
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*
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* @return This routine does not return any value.
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*
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* @since XT 1.0
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*/
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XTAPI
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VOID
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HlInitializeProcessor(VOID)
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{
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PKPROCESSOR_BLOCK ProcessorBlock;
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KAFFINITY Affinity;
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/* Get current processor block */
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ProcessorBlock = KeGetCurrentProcessorBlock();
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/* Set initial stall factor, CPU number and mask interrupts */
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ProcessorBlock->StallScaleFactor = INITIAL_STALL_FACTOR;
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ProcessorBlock->Idr = 0xFFFFFFFF;
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/* Set processor affinity */
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Affinity = (KAFFINITY) 1 << ProcessorBlock->CpuNumber;
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/* Apply affinity to a set of processors */
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HlpActiveProcessors |= Affinity;
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/* Initialize APIC for this processor */
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HlpInitializePic();
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/* Set the APIC running level */
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HlSetRunLevel(KeGetCurrentProcessorBlock()->RunLevel);
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}
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