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>
44 #define SPEAKER_PORT 0x61
48 u8_t uip_buf[UIP_BUFSIZE+2];
51 int Packet_Received(struct NE2K_Packet_Info* info, uchar_t *pkt) {
54 for(i = 0; i < info->size; i++) {
55 PrintBoth("%x ", *(pkt+i));
56 uip_buf[i] = *(pkt+i);
68 // hack - competing thread
74 void Buzz(unsigned delay, unsigned num)
80 init=In_Byte(SPEAKER_PORT);
83 Out_Byte(SPEAKER_PORT, init|0x2);
84 for (j=0;j<delay;j++) {
87 Out_Byte(SPEAKER_PORT, init);
88 for (j=0;j<delay;j++) {
94 inline void MyOut_Byte(ushort_t port, uchar_t value)
96 __asm__ __volatile__ (
99 : "a" (value), "Nd" (port)
104 * Read a byte from an I/O port.
106 inline uchar_t MyIn_Byte(ushort_t port)
110 __asm__ __volatile__ (
125 void Buzzer(ulong_t arg) {
126 ulong_t *doIBuzz = (ulong_t*)arg;
128 // Quick and dirty hack to save my hearing...
129 // I'm not too worried about timing, so I'll deal with concurrency later...
141 void Keyboard_Listener(ulong_t arg) {
142 ulong_t * doIBuzz = (ulong_t*)arg;
145 Print("Press F4 to turn on/off the speaker\n");
147 while ((key_press = Wait_For_Key())) {
148 if (key_press == KEY_F4) {
149 Print("\nToggling Speaker Port\n");
150 SerialPrintLevel(100,"\nToggling Speaker Port\n");
151 *doIBuzz = (*doIBuzz + 1) % 2;
152 } else if (key_press == KEY_F5) {
153 Print("\nMachine Restart\n");
154 SerialPrintLevel(100,"\nMachine Restart\n");
155 machine_real_restart();
163 extern char BSS_START, BSS_END;
168 /* This is an ugly hack to get at the VM memory */
169 ulong_t vm_range_start;
170 ulong_t vm_range_end;
171 ulong_t guest_kernel_start;
172 ulong_t guest_kernel_end;
176 int AllocateAndMapPagesForRange(uint_t start, uint_t length, pte_t template_pte)
180 for (address=start;address<start+length;address+=PAGE_SIZE) {
182 pte_t pte = template_pte;
187 pte.pageBaseAddr=PAGE_ALLIGNED_ADDR(page);
189 KASSERT(MapPage((void*)address,&pte,1));
198 * Kernel C code entry point.
199 * Initializes kernel subsystems, mounts filesystems,
200 * and spawns init process.
202 void Main(struct Boot_Info* bootInfo)
206 //Out_Byte(0x1234,5);
207 //Out_Byte(0x1234,5);
215 extern char BSS_START, BSS_END;
217 SerialPrint("BSS 0x%x->0x%x\n", &BSS_START, &BSS_END);
222 // SerialPrint("Guest Mem Dump at 0x%x\n", 0x100000);
223 //SerialMemDump((unsigned char *)(0x100000), 261 * 1024);
241 Init_Ne2k(&Packet_Received);
244 /* Local IP address */
246 uip_ipaddr(ipaddr, 10,0,2,21);
247 uip_sethostaddr(ipaddr);
249 /* Remote IP address */
250 uip_ipaddr_t ripaddr;
251 uip_ipaddr(ripaddr, 10,0,2,20);
252 struct uip_conn *conn;
253 conn = uip_connect(&ripaddr, HTONS(8080));
255 while(uip_len <= 0) {
256 uip_periodic_conn(conn);
262 /* Based on example code from the uIP documentation */
263 if(uip_len <= UIP_LLH_LEN + UIP_TCPIP_HLEN) {
264 size = uip_len + UIP_LLH_LEN;
266 memcpy(data, &uip_buf[0], UIP_LLH_LEN);
267 memcpy(data + UIP_LLH_LEN, &uip_buf[UIP_LLH_LEN], uip_len - UIP_LLH_LEN);
269 size = uip_len + UIP_LLH_LEN + UIP_TCPIP_HLEN;
271 memcpy(data, &uip_buf[0], UIP_LLH_LEN);
272 memcpy(data + UIP_LLH_LEN, &uip_buf[UIP_LLH_LEN], UIP_TCPIP_HLEN);
273 memcpy(data + UIP_LLH_LEN + UIP_TCPIP_HLEN, uip_appdata, uip_len - UIP_TCPIP_HLEN - UIP_LLH_LEN);
276 #endif /* TEST_NE2K */
280 // Print("Done; stalling\n");
285 SerialPrint("Dumping VM kernel Code (first 128 bytes @ 0x%x)\n", 0x100000);
286 SerialMemDump((unsigned char *)0x100000, 256);
288 SerialPrint("Dumping kernel Code (first 512 bytes @ 0x%x)\n",KERNEL_START);
289 SerialMemDump((unsigned char *)VM_KERNEL_START, 512);
295 struct Kernel_Thread *spin_thread;
297 spin_thread=Start_Kernel_Thread(Spin,0,PRIORITY_NORMAL,false);
304 struct Kernel_Thread * key_thread;
305 struct Kernel_Thread * spkr_thread;
309 SerialPrint("Dumping BIOS code ffff0-fffff\n\n");
310 SerialMemDump((unsigned char *)0x10fff0, 16);
312 SerialPrint("Dumping kernel Code (first 512 bytes @ 0x%x)\n",KERNEL_START);
313 SerialMemDump((unsigned char *)VM_KERNEL_START, 512);
316 SerialPrint("Noisemaker and keyboard listener threads\n");
317 key_thread = Start_Kernel_Thread(Keyboard_Listener, (ulong_t)&doIBuzz, PRIORITY_NORMAL, false);
318 spkr_thread = Start_Kernel_Thread(Buzzer, (ulong_t)&doIBuzz, PRIORITY_NORMAL, false);
322 uchar_t src_addr[6] = { 0x52, 0x54, 0x00, 0x12, 0x34, 0x58 };
323 uchar_t dest_addr[6] = { 0x52, 0x54, 0x00, 0x12, 0x34, 0x56 };
325 /* manually copy over the src and dest mac addresses for now */
326 memcpy(data, dest_addr, 6);
327 memcpy(data + 6, src_addr, 6);
332 for(i = 0; i < 3; i++) {
333 NE2K_Send(data, size);
344 SerialPrint("RunVMM returned, spinning\n");
348 TODO("Write a Virtual Machine Monitor");