54 lines
1.3 KiB
C
54 lines
1.3 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/ke/amd64/proc.c
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* DESCRIPTION: AMD64 processor-related functionality for the kernel
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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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* Gets the processor block for the currently executing processor.
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*
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* @return This routine returns the current processor block read from the GS register.
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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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PKPROCESSOR_BLOCK
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KeGetCurrentProcessorBlock(VOID)
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{
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/* Get processor block from GS register */
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return (PKPROCESSOR_BLOCK)ArReadGSQuadWord(FIELD_OFFSET(KPROCESSOR_BLOCK, Self));
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}
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/**
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* Gets the processor control block for the currently executing processor.
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*
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* @return This routine returns the current processor control block read from the GS register.
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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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PKPROCESSOR_CONTROL_BLOCK
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KeGetCurrentProcessorControlBlock(VOID)
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{
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return (PKPROCESSOR_CONTROL_BLOCK)ArReadGSQuadWord(FIELD_OFFSET(KPROCESSOR_BLOCK, CurrentPrcb));
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}
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/**
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* Gets the current thread running on the currently executing processor.
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*
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* @return This routine returns the address of the current thread object.
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*
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* @since NT 3.5
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*/
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XTAPI
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PKTHREAD
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KeGetCurrentThread(VOID)
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{
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return (PKTHREAD)ArReadGSQuadWord(FIELD_OFFSET(KPROCESSOR_BLOCK, Prcb.CurrentThread));
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}
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