xt-sys/exectos
xt-sys/exectos
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Initialize CPU power structures, idle process and idle thread
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This commit is contained in:
Rafal Kupiec 2023-11-02 23:07:11 +01:00
parent e11ef2f008
commit 63f8dbc59b
Signed by: belliash
GPG Key ID: 4E829243E0CFE6B4
6 changed files with 93 additions and 0 deletions
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4
xtoskrnl/includes/amd64/ke.h
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@ -25,6 +25,10 @@ XTAPI
PKTHREAD
KeGetCurrentThread(VOID);
XTAPI
VOID
KepInitializeKernel(VOID);
XTAPI
VOID
KepInitializeMachine(VOID);

3
xtoskrnl/includes/globals.h
View File

@ -30,4 +30,7 @@ EXTERN ETHREAD KeInitialThread;
/* Kernel service descriptor table */
EXTERN KSERVICE_DESCRIPTOR_TABLE KeServiceDescriptorTable[KSERVICE_TABLES_COUNT];
/* Kernel process list */
EXTERN LIST_ENTRY KepProcessListHead;
#endif /* __XTOSKRNL_GLOBALS_H */

4
xtoskrnl/includes/i686/ke.h
View File

@ -25,6 +25,10 @@ XTAPI
PKTHREAD
KeGetCurrentThread(VOID);
XTAPI
VOID
KepInitializeKernel(VOID);
XTAPI
VOID
KepInitializeMachine(VOID);

44
xtoskrnl/ke/amd64/krnlinit.c
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@ -9,6 +9,45 @@
#include <xtos.h>
/**
* This routine initializes XT kernel.
*
* @return This routine does not return any value.
*
* @since XT 1.0
*/
XTAPI
VOID
KepInitializeKernel(VOID)
{
PKPROCESSOR_CONTROL_BLOCK Prcb;
ULONG_PTR PageDirectory[2];
PKTHREAD CurrentThread;
/* Get processor control block and current thread */
Prcb = KeGetCurrentProcessorControlBlock();
CurrentThread = KeGetCurrentThread();
/* Initialize CPU power state structures */
PoInitializeProcessorControlBlock(Prcb);
/* Initialize Idle process */
RtlInitializeListHead(&KepProcessListHead);
PageDirectory[0] = 0;
PageDirectory[1] = 0;
KeInitializeProcess(CurrentThread->ApcState.Process, 0, 0xFFFFFFFF, PageDirectory, FALSE);
CurrentThread->ApcState.Process->Quantum = MAXCHAR;
/* Initialize Idle thread */
KeInitializeThread(CurrentThread->ApcState.Process, CurrentThread, NULL, NULL, NULL, NULL, NULL, Prcb->DpcStack);
CurrentThread->NextProcessor = Prcb->Number;
CurrentThread->Priority = THREAD_HIGH_PRIORITY;
CurrentThread->State = Running;
CurrentThread->Affinity = (ULONG_PTR)1 << Prcb->Number;
CurrentThread->WaitIrql = DISPATCH_LEVEL;
CurrentThread->ApcState.Process->ActiveProcessors |= (ULONG_PTR)1 << Prcb->Number;
}
/**
* Performs architecture-specific initialization for the kernel executive.
*
@ -39,6 +78,11 @@ KepStartKernel(VOID)
/* Print debug message */
DebugPrint(L"Starting ExectOS ...\n");
/* Initialize XTOS kernel */
KepInitializeKernel();
/* Enter infinite loop */
DebugPrint(L"KepStartKernel() finished. Entering infinite loop.\n");
for(;;);
}

3
xtoskrnl/ke/globals.c
View File

@ -23,3 +23,6 @@ ETHREAD KeInitialThread;
/* Kernel service descriptor table */
KSERVICE_DESCRIPTOR_TABLE KeServiceDescriptorTable[KSERVICE_TABLES_COUNT];
/* Kernel process list */
LIST_ENTRY KepProcessListHead;

35
xtoskrnl/ke/i686/krnlinit.c
View File

@ -9,6 +9,36 @@
#include <xtos.h>
/**
* This routine initializes XT kernel.
*
* @return This routine does not return any value.
*
* @since XT 1.0
*/
XTAPI
VOID
KepInitializeKernel(VOID)
{
PKPROCESSOR_CONTROL_BLOCK Prcb;
ULONG_PTR PageDirectory[2];
PKTHREAD CurrentThread;
/* Get processor control block and current thread */
Prcb = KeGetCurrentProcessorControlBlock();
CurrentThread = KeGetCurrentThread();
/* Initialize CPU power state structures */
PoInitializeProcessorControlBlock(Prcb);
/* Initialize Idle process */
RtlInitializeListHead(&KepProcessListHead);
PageDirectory[0] = 0;
PageDirectory[1] = 0;
KeInitializeProcess(CurrentThread->ApcState.Process, 0, 0xFFFFFFFF, PageDirectory, FALSE);
CurrentThread->ApcState.Process->Quantum = MAXCHAR;
}
/**
* Performs architecture-specific initialization for the kernel executive.
*
@ -39,6 +69,11 @@ KepStartKernel(VOID)
/* Print debug message */
DebugPrint(L"Starting ExectOS ...\n");
/* Initialize XTOS kernel */
KepInitializeKernel();
/* Enter infinite loop */
DebugPrint(L"KepStartKernel() finished. Entering infinite loop.\n");
for(;;);
}