2 * GeekOS C code entry point
3 * Copyright (c) 2001,2003,2004 David H. Hovemeyer <daveho@cs.umd.edu>
4 * Copyright (c) 2003, Jeffrey K. Hollingsworth <hollings@cs.umd.edu>
5 * Copyright (c) 2004, Iulian Neamtiu <neamtiu@cs.umd.edu>
8 * This is free software. You are permitted to use,
9 * redistribute, and modify it as specified in the file "COPYING".
12 #include <geekos/bootinfo.h>
13 #include <geekos/string.h>
14 #include <geekos/screen.h>
15 #include <geekos/mem.h>
16 #include <geekos/crc32.h>
17 #include <geekos/tss.h>
18 #include <geekos/int.h>
19 #include <geekos/kthread.h>
20 #include <geekos/trap.h>
21 #include <geekos/timer.h>
22 #include <geekos/keyboard.h>
23 #include <geekos/io.h>
24 #include <geekos/serial.h>
25 #include <geekos/reboot.h>
26 #include <geekos/mem.h>
27 #include <geekos/paging.h>
28 #include <geekos/ide.h>
29 #include <geekos/malloc.h>
31 #include <geekos/debug.h>
34 #include <geekos/vm.h>
35 #include <geekos/gdt.h>
37 #include <geekos/vmm_stubs.h>
39 #include <geekos/pci.h>
41 #include <geekos/ne2k.h>
43 #define SPEAKER_PORT 0x61
47 int Packet_Received(struct NE2K_Packet_Info* info, uchar_t *pkt) {
49 for(i = 0; i < info->size; i++) {
50 PrintBoth("%x ", *(pkt+i));
61 // hack - competing thread
67 void Buzz(unsigned delay, unsigned num)
73 init=In_Byte(SPEAKER_PORT);
76 Out_Byte(SPEAKER_PORT, init|0x2);
77 for (j=0;j<delay;j++) {
80 Out_Byte(SPEAKER_PORT, init);
81 for (j=0;j<delay;j++) {
87 inline void MyOut_Byte(ushort_t port, uchar_t value)
89 __asm__ __volatile__ (
92 : "a" (value), "Nd" (port)
97 * Read a byte from an I/O port.
99 inline uchar_t MyIn_Byte(ushort_t port)
103 __asm__ __volatile__ (
118 void Buzzer(ulong_t arg) {
119 ulong_t *doIBuzz = (ulong_t*)arg;
121 // Quick and dirty hack to save my hearing...
122 // I'm not too worried about timing, so I'll deal with concurrency later...
134 void Keyboard_Listener(ulong_t arg) {
135 ulong_t * doIBuzz = (ulong_t*)arg;
138 Print("Press F4 to turn on/off the speaker\n");
140 while ((key_press = Wait_For_Key())) {
141 if (key_press == KEY_F4) {
142 Print("\nToggling Speaker Port\n");
143 SerialPrintLevel(100,"\nToggling Speaker Port\n");
144 *doIBuzz = (*doIBuzz + 1) % 2;
145 } else if (key_press == KEY_F5) {
146 Print("\nMachine Restart\n");
147 SerialPrintLevel(100,"\nMachine Restart\n");
148 machine_real_restart();
156 extern char BSS_START, BSS_END;
161 /* This is an ugly hack to get at the VM memory */
162 ulong_t vm_range_start;
163 ulong_t vm_range_end;
164 ulong_t guest_kernel_start;
165 ulong_t guest_kernel_end;
169 int AllocateAndMapPagesForRange(uint_t start, uint_t length, pte_t template_pte)
173 for (address=start;address<start+length;address+=PAGE_SIZE) {
175 pte_t pte = template_pte;
180 pte.pageBaseAddr=PAGE_ALLIGNED_ADDR(page);
182 KASSERT(MapPage((void*)address,&pte,1));
191 * Kernel C code entry point.
192 * Initializes kernel subsystems, mounts filesystems,
193 * and spawns init process.
195 void Main(struct Boot_Info* bootInfo)
199 //Out_Byte(0x1234,5);
200 //Out_Byte(0x1234,5);
208 extern char BSS_START, BSS_END;
210 SerialPrint("BSS 0x%x->0x%x\n", &BSS_START, &BSS_END);
215 // SerialPrint("Guest Mem Dump at 0x%x\n", 0x100000);
216 //SerialMemDump((unsigned char *)(0x100000), 261 * 1024);
234 Init_Ne2k(&Packet_Received);
239 // Print("Done; stalling\n");
244 SerialPrint("Dumping VM kernel Code (first 128 bytes @ 0x%x)\n", 0x100000);
245 SerialMemDump((unsigned char *)0x100000, 256);
247 SerialPrint("Dumping kernel Code (first 512 bytes @ 0x%x)\n",KERNEL_START);
248 SerialMemDump((unsigned char *)VM_KERNEL_START, 512);
254 struct Kernel_Thread *spin_thread;
256 spin_thread=Start_Kernel_Thread(Spin,0,PRIORITY_NORMAL,false);
263 struct Kernel_Thread * key_thread;
264 struct Kernel_Thread * spkr_thread;
268 SerialPrint("Dumping BIOS code ffff0-fffff\n\n");
269 SerialMemDump((unsigned char *)0x10fff0, 16);
271 SerialPrint("Dumping kernel Code (first 512 bytes @ 0x%x)\n",KERNEL_START);
272 SerialMemDump((unsigned char *)VM_KERNEL_START, 512);
275 SerialPrint("Noisemaker and keyboard listener threads\n");
276 key_thread = Start_Kernel_Thread(Keyboard_Listener, (ulong_t)&doIBuzz, PRIORITY_NORMAL, false);
277 spkr_thread = Start_Kernel_Thread(Buzzer, (ulong_t)&doIBuzz, PRIORITY_NORMAL, false);
281 uchar_t src_addr[6] = { 0x52, 0x54, 0x00, 0x12, 0x34, 0x58 };
282 uchar_t dest_addr[6] = { 0x52, 0x54, 0x00, 0x12, 0x34, 0x56 };
285 uchar_t *data = Malloc(size);
286 data = "This is a 64-byte string that will be used to test transmission.";
288 for(i = 0; i < 3; i++) {
289 NE2K_Send(src_addr, dest_addr, 0x01, data, size);
300 SerialPrint("RunVMM returned, spinning\n");
304 TODO("Write a Virtual Machine Monitor");