151 lines
2.9 KiB
C
151 lines
2.9 KiB
C
/*
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* Copyright (c) 2026, Chloe M., et al
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* Provided under the BSD-3 clause.
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*
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* Description: System bringup core
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* Author: Chloe M.
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*/
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#include <ptdef.h>
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#include <ke/bpal.h>
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#include <ke/bugcheck.h>
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#include <ke/sched.h>
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#include <ex/trace.h>
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#include <ex/pbi.h>
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#include <ex/loader.h>
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#include <ps/process.h>
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#include <ps/thread.h>
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#include <mm/pm.h>
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#include <mm/vm.h>
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#include <hal/prim.h>
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#include <hal/serial.h>
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#include <hal/thread.h>
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#include <hal/kpcr.h>
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#include <drivers/bootvid/fbio.h>
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#include <drivers/acpi/acpi.h>
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#include <string.h>
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/* Globals */
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static KPCR BootstrapCore;
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static PROCESS *RootProcess;
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static THREAD *RootThread;
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/*
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* Display the copyright for legal reasons
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*/
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static VOID
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Copyright(VOID)
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{
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TRACE("~ Plural Technology ~\n");
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TRACE("Copyright (c) 2026, Chloe M., et al\n");
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}
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/*
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* Initialize the first process
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*/
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static VOID
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InitializeRootProcess(VOID)
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{
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PT_STATUS Status;
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PBI_FILE File;
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LOADER_PROGRAM Csrts;
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/* Create the client server runtime service */
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Status = PsCreateProcess(
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"csrts.sys",
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PS_USER,
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&RootProcess
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);
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if (PT_ERROR(Status)) {
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KeBugCheck(
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BUGCHECK_MISC,
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"could not create csrts.sys process\n"
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);
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}
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/* Get the CSRTS binary */
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Status = ExPbiLookup("/boot/csrts.sys", &File);
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if (PT_ERROR(Status)) {
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KeBugCheck(
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BUGCHECK_MISC,
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"unable to locate /boot/csrts.sys\n"
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);
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}
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/* Now load the program */
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Status = ExLoadProgramOf(
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LOADER_ELF64,
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&RootProcess->Vas,
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File.Data,
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&Csrts
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);
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if (PT_ERROR(Status)) {
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KeBugCheck(
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BUGCHECK_MISC,
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"unable to load csrts.sys\n"
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);
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}
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Status = PsCreateThread(
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RootProcess,
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0,
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Csrts.EntryPoint,
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&RootThread
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);
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KeSchedEnqueue(&BootstrapCore.SchedQueue, RootThread);
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}
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/*
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* Starting here is where the world is brought up and system
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* components are initialized.
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*/
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VOID
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KiKernelInit(VOID)
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{
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/* Initialize the boot protocol abstraction layer */
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KeBpalInit();
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/* Initialize the serial driver */
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HalSerialInit();
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/* Display the copyright */
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Copyright();
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/* Initialize the boot video driver */
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BootVidInit();
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/* Initialize the boot video console */
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BootVidInitCons(NULL);
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/* Initialize physical memory */
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MmPmInit();
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/* Phase 1 init of bootstrap core */
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HalKpcrP1Init(&BootstrapCore);
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/* Initialize virtual memory */
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MmVmInit();
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/* Initialize ACPI */
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AcpiInit();
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/* Phase 2 init of bootstrap core */
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HalKpcrP2Init(&BootstrapCore);
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/* Initialize the PBI manager */
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ExPbiInit();
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/* Initialize the root process */
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InitializeRootProcess();
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/* Prime the scheduler timer */
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HalPrimeThreadTimer(SCHED_MIN_QUANTUM);
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for (;;) {
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HalCpuSpinWait();
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}
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}
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