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>
42 #include <geekos/ne2k.h>
44 #include <uip/uip_arp.h>
47 #include <geekos/socket.h>
48 //#include <geekos/ring_buffer.h>
50 #define SPEAKER_PORT 0x61
52 #define BUF ((struct uip_eth_hdr *)&uip_buf[0])
55 u8_t uip_buf[UIP_BUFSIZE+2];
58 int Packet_Received(struct NE2K_Packet_Info* info, uchar_t *pkt) {
61 for(i = 0; i < info->size; i++) {
62 PrintBoth("%x ", *(pkt+i));
63 uip_buf[i] = *(pkt+i);
68 if(BUF->type == htons(UIP_ETHTYPE_ARP)) {
80 // hack - competing thread
86 void Buzz(unsigned delay, unsigned num)
92 init=In_Byte(SPEAKER_PORT);
95 Out_Byte(SPEAKER_PORT, init|0x2);
96 for (j=0;j<delay;j++) {
99 Out_Byte(SPEAKER_PORT, init);
100 for (j=0;j<delay;j++) {
106 inline void MyOut_Byte(ushort_t port, uchar_t value)
108 __asm__ __volatile__ (
111 : "a" (value), "Nd" (port)
116 * Read a byte from an I/O port.
118 inline uchar_t MyIn_Byte(ushort_t port)
122 __asm__ __volatile__ (
137 void Buzzer(ulong_t arg) {
138 ulong_t *doIBuzz = (ulong_t*)arg;
140 // Quick and dirty hack to save my hearing...
141 // I'm not too worried about timing, so I'll deal with concurrency later...
153 void Keyboard_Listener(ulong_t arg) {
154 ulong_t * doIBuzz = (ulong_t*)arg;
157 Print("Press F4 to turn on/off the speaker\n");
159 while ((key_press = Wait_For_Key())) {
160 if (key_press == KEY_F4) {
161 Print("\nToggling Speaker Port\n");
162 SerialPrintLevel(100,"\nToggling Speaker Port\n");
163 *doIBuzz = (*doIBuzz + 1) % 2;
164 } else if (key_press == KEY_F5) {
165 Print("\nMachine Restart\n");
166 SerialPrintLevel(100,"\nMachine Restart\n");
167 machine_real_restart();
175 extern char BSS_START, BSS_END;
180 /* This is an ugly hack to get at the VM memory */
181 ulong_t vm_range_start;
182 ulong_t vm_range_end;
183 ulong_t guest_kernel_start;
184 ulong_t guest_kernel_end;
188 int AllocateAndMapPagesForRange(uint_t start, uint_t length, pte_t template_pte)
192 for (address=start;address<start+length;address+=PAGE_SIZE) {
194 pte_t pte = template_pte;
199 pte.pageBaseAddr=PAGE_ALLIGNED_ADDR(page);
201 KASSERT(MapPage((void*)address,&pte,1));
210 * Kernel C code entry point.
211 * Initializes kernel subsystems, mounts filesystems,
212 * and spawns init process.
214 void Main(struct Boot_Info* bootInfo)
218 //Out_Byte(0x1234,5);
219 //Out_Byte(0x1234,5);
227 extern char BSS_START, BSS_END;
229 SerialPrint("BSS 0x%x->0x%x\n", &BSS_START, &BSS_END);
234 // SerialPrint("Guest Mem Dump at 0x%x\n", 0x100000);
235 //SerialMemDump((unsigned char *)(0x100000), 261 * 1024);
255 uchar_t local_addr[4];
256 uchar_t remote_addr[4];
263 set_ip_addr(local_addr);
271 connect(remote_addr, 4301);
274 Init_Ne2k(&Packet_Received);
279 uip_ipaddr(ipaddr, 10,0,2,21); /* Local IP address */
280 uip_sethostaddr(ipaddr);
282 uip_ipaddr_t ripaddr;
283 uip_ipaddr(ripaddr, 10,0,2,20); /* Remote IP address */
285 /* Attempt a connection to port 8080 at address 10.0.2.20 */
286 struct uip_conn *conn;
287 conn = uip_connect(&ripaddr, HTONS(8080));
289 while(uip_len <= 0) {
290 uip_periodic_conn(conn);
292 NE2K_Transmit(uip_len+UIP_LLH_LEN); /* This will transmit an ARP packet */
295 while(l++ < 5000); /* When this is done, a response to the ARP should have been received. */
296 conn = uip_connect(&ripaddr, HTONS(8080));
298 while(uip_len <= 0) {
299 uip_periodic_conn(conn);
301 NE2K_Transmit(uip_len+UIP_LLH_LEN); /* This *should* transmit a SYN packet */
303 #endif /* TEST_NE2K */
307 // Print("Done; stalling\n");
312 SerialPrint("Dumping VM kernel Code (first 128 bytes @ 0x%x)\n", 0x100000);
313 SerialMemDump((unsigned char *)0x100000, 256);
315 SerialPrint("Dumping kernel Code (first 512 bytes @ 0x%x)\n",KERNEL_START);
316 SerialMemDump((unsigned char *)VM_KERNEL_START, 512);
322 struct Kernel_Thread *spin_thread;
324 spin_thread=Start_Kernel_Thread(Spin,0,PRIORITY_NORMAL,false);
331 struct Kernel_Thread * key_thread;
332 struct Kernel_Thread * spkr_thread;
336 SerialPrint("Dumping BIOS code ffff0-fffff\n\n");
337 SerialMemDump((unsigned char *)0x10fff0, 16);
339 SerialPrint("Dumping kernel Code (first 512 bytes @ 0x%x)\n",KERNEL_START);
340 SerialMemDump((unsigned char *)VM_KERNEL_START, 512);
343 SerialPrint("Noisemaker and keyboard listener threads\n");
344 key_thread = Start_Kernel_Thread(Keyboard_Listener, (ulong_t)&doIBuzz, PRIORITY_NORMAL, false);
345 spkr_thread = Start_Kernel_Thread(Buzzer, (ulong_t)&doIBuzz, PRIORITY_NORMAL, false);
355 SerialPrint("RunVMM returned, spinning\n");
359 TODO("Write a Virtual Machine Monitor");