+++ /dev/null
-/*
- * GeekOS C code entry point
- * Copyright (c) 2001,2003,2004 David H. Hovemeyer <daveho@cs.umd.edu>
- * Copyright (c) 2003, Jeffrey K. Hollingsworth <hollings@cs.umd.edu>
- * Copyright (c) 2004, Iulian Neamtiu <neamtiu@cs.umd.edu>
- * Copyright (c) 2008, Jack Lange <jarusl@cs.northwestern.edu>
- * $Revision: 1.47 $
- *
- * This is free software. You are permitted to use,
- * redistribute, and modify it as specified in the file "COPYING".
- */
-
-#include <geekos/bootinfo.h>
-#include <geekos/string.h>
-#include <geekos/screen.h>
-#include <geekos/mem.h>
-#include <geekos/crc32.h>
-#include <geekos/tss.h>
-#include <geekos/int.h>
-#include <geekos/kthread.h>
-#include <geekos/trap.h>
-#include <geekos/timer.h>
-#include <geekos/keyboard.h>
-#include <geekos/io.h>
-#include <geekos/serial.h>
-#include <geekos/reboot.h>
-#include <geekos/mem.h>
-#include <geekos/paging.h>
-#include <geekos/ide.h>
-#include <geekos/malloc.h>
-
-#include <geekos/debug.h>
-
-
-#include <geekos/vm.h>
-#include <geekos/gdt.h>
-
-#include <geekos/vmm_stubs.h>
-
-#include <geekos/pci.h>
-
-
-#include <geekos/net.h>
-
-
-#define SPEAKER_PORT 0x61
-
-
-
-
-void Spin()
-{
- // hack - competing thread
- while (1) {};
-
-}
-
-
-void Buzz(unsigned delay, unsigned num)
-{
- volatile int x;
- int i,j;
- unsigned char init;
-
- init=In_Byte(SPEAKER_PORT);
-
- for (i=0;i<num;i++) {
- Out_Byte(SPEAKER_PORT, init|0x2);
- for (j=0;j<delay;j++) {
- x+=j;
- }
- Out_Byte(SPEAKER_PORT, init);
- for (j=0;j<delay;j++) {
- x+=j;
- }
- }
-}
-
-inline void MyOut_Byte(ushort_t port, uchar_t value)
-{
- __asm__ __volatile__ (
- "outb %b0, %w1"
- :
- : "a" (value), "Nd" (port)
- );
-}
-
-/*
- * Read a byte from an I/O port.
- */
-inline uchar_t MyIn_Byte(ushort_t port)
-{
- uchar_t value;
-
- __asm__ __volatile__ (
- "inb %w1, %b0"
- : "=a" (value)
- : "Nd" (port)
- );
-
- return value;
-}
-
-
-
-
-
-
-
-void Buzzer(ulong_t arg) {
- ulong_t *doIBuzz = (ulong_t*)arg;
- while (1) {
- // Quick and dirty hack to save my hearing...
- // I'm not too worried about timing, so I'll deal with concurrency later...
- if (*doIBuzz == 1) {
- Buzz(1000000, 10);
- }
- }
-
-}
-
-
-
-
-
-void Keyboard_Listener(ulong_t arg) {
- ulong_t * doIBuzz = (ulong_t*)arg;
- Keycode key_press;
-
- Print("Press F4 to turn on/off the speaker\n");
-
- while ((key_press = Wait_For_Key())) {
- if (key_press == KEY_F4) {
- Print("\nToggling Speaker Port\n");
- SerialPrintLevel(100,"\nToggling Speaker Port\n");
- *doIBuzz = (*doIBuzz + 1) % 2;
- } else if (key_press == KEY_F5) {
- Print("\nMachine Restart\n");
- SerialPrintLevel(100,"\nMachine Restart\n");
- machine_real_restart();
- }
- }
- return;
-}
-
-
-
-extern char BSS_START, BSS_END;
-
-extern char end;
-
-
-/* This is an ugly hack to get at the VM memory */
-ulong_t vm_range_start;
-ulong_t vm_range_end;
-ulong_t guest_kernel_start;
-ulong_t guest_kernel_end;
-/* ** */
-
-
-int AllocateAndMapPagesForRange(uint_t start, uint_t length, pte_t template_pte)
-{
- uint_t address;
-
- for (address=start;address<start+length;address+=PAGE_SIZE) {
- void *page;
- pte_t pte = template_pte;
-
- page=Alloc_Page();
- KASSERT(page);
-
- pte.pageBaseAddr=PAGE_ALLIGNED_ADDR(page);
-
- KASSERT(MapPage((void*)address,&pte,1));
- }
-
- return 0;
-}
-
-
-
-/*
- * Kernel C code entry point.
- * Initializes kernel subsystems, mounts filesystems,
- * and spawns init process.
- */
-void Main(struct Boot_Info* bootInfo)
-{
-
-
- //Out_Byte(0x1234,5);
- //Out_Byte(0x1234,5);
-
- Init_BSS();
- Init_Screen();
-
- Init_Serial();
-
- /* {
- extern char BSS_START, BSS_END;
-
- SerialPrint("BSS 0x%x->0x%x\n", &BSS_START, &BSS_END);
-
- }*/
-
-
- // SerialPrint("Guest Mem Dump at 0x%x\n", 0x100000);
- //SerialMemDump((unsigned char *)(0x100000), 261 * 1024);
-
- Init_Mem(bootInfo);
- Init_CRC32();
- Init_TSS();
- Init_Interrupts();
- Init_Scheduler();
- Init_Traps();
- Init_Timer();
- Init_Keyboard();
- Init_VM(bootInfo);
- Init_Paging();
-
- //Init_PCI();
-
- Init_Stubs();
-
- Init_Network();
-
-
- // Init_IDE();
-
- // Print("Done; stalling\n");
-
-
-
-#if 0
- SerialPrint("Dumping VM kernel Code (first 128 bytes @ 0x%x)\n", 0x100000);
- SerialMemDump((unsigned char *)0x100000, 256);
- /*
- SerialPrint("Dumping kernel Code (first 512 bytes @ 0x%x)\n",KERNEL_START);
- SerialMemDump((unsigned char *)VM_KERNEL_START, 512);
- */
-#endif
-
-
-#if 1
- struct Kernel_Thread *spin_thread;
-
- spin_thread=Start_Kernel_Thread(Spin,0,PRIORITY_NORMAL,false);
-
-#endif
-
-#if 0
- {
-
- struct Kernel_Thread * key_thread;
- struct Kernel_Thread * spkr_thread;
-
- ulong_t doIBuzz = 0;
-
- SerialPrint("Dumping BIOS code ffff0-fffff\n\n");
- SerialMemDump((unsigned char *)0x10fff0, 16);
- /*
- SerialPrint("Dumping kernel Code (first 512 bytes @ 0x%x)\n",KERNEL_START);
- SerialMemDump((unsigned char *)VM_KERNEL_START, 512);
- */
-
- SerialPrint("Noisemaker and keyboard listener threads\n");
- key_thread = Start_Kernel_Thread(Keyboard_Listener, (ulong_t)&doIBuzz, PRIORITY_NORMAL, false);
- spkr_thread = Start_Kernel_Thread(Buzzer, (ulong_t)&doIBuzz, PRIORITY_NORMAL, false);
- }
-#endif
-
-
- {
- RunVMM(bootInfo);
- }
-
-
- SerialPrint("RunVMM returned, spinning\n");
- while (1) {}
-
-
- TODO("Write a Virtual Machine Monitor");
-
-
- Exit(0);
-}