forked from xt-sys/exectos
48 lines
1.1 KiB
C
48 lines
1.1 KiB
C
/**
|
|
* PROJECT: ExectOS
|
|
* COPYRIGHT: See COPYING.md in the top level directory
|
|
* FILE: xtoskrnl/hl/x86/cpu.c
|
|
* DESCRIPTION: HAL x86 (i686/AMD64) processor support
|
|
* DEVELOPERS: Rafal Kupiec <belliash@codingworkshop.eu.org>
|
|
*/
|
|
|
|
#include <xtos.h>
|
|
|
|
|
|
/**
|
|
* Initializes the processor.
|
|
*
|
|
* @return This routine does not return any value.
|
|
*
|
|
* @since XT 1.0
|
|
*/
|
|
XTAPI
|
|
VOID
|
|
HlInitializeProcessor(VOID)
|
|
{
|
|
PKPROCESSOR_BLOCK ProcessorBlock;
|
|
KAFFINITY Affinity;
|
|
ULONG CpuNumber = 0;
|
|
|
|
/* Get current processor block */
|
|
ProcessorBlock = KeGetCurrentProcessorBlock();
|
|
|
|
/* Set initial stall factor */
|
|
ProcessorBlock->StallScaleFactor = INITIAL_STALL_FACTOR;
|
|
|
|
/* Record processor block in the processors table */
|
|
HlpProcessorsIdentity[CpuNumber].ProcessorBlock = ProcessorBlock;
|
|
|
|
/* Set processor affinity */
|
|
Affinity = (KAFFINITY) 1 << CpuNumber;
|
|
|
|
/* Apply affinity to a set of processors */
|
|
HlpActiveProcessors |= Affinity;
|
|
|
|
/* Initialize APIC for this processor */
|
|
HlpInitializeApic();
|
|
|
|
/* Set the APIC running level */
|
|
HlSetRunLevel(KeGetCurrentProcessorBlock()->RunLevel);
|
|
}
|