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 #include <uip/uip_arp.h>
45 #define SPEAKER_PORT 0x61
47 #define BUF ((struct uip_eth_hdr *)&uip_buf[0])
50 u8_t uip_buf[UIP_BUFSIZE+2];
53 int Packet_Received(struct NE2K_Packet_Info* info, uchar_t *pkt) {
56 for(i = 0; i < info->size; i++) {
57 PrintBoth("%x ", *(pkt+i));
58 uip_buf[i] = *(pkt+i);
63 if(BUF->type == htons(UIP_ETHTYPE_ARP)) {
75 // hack - competing thread
81 void Buzz(unsigned delay, unsigned num)
87 init=In_Byte(SPEAKER_PORT);
90 Out_Byte(SPEAKER_PORT, init|0x2);
91 for (j=0;j<delay;j++) {
94 Out_Byte(SPEAKER_PORT, init);
95 for (j=0;j<delay;j++) {
101 inline void MyOut_Byte(ushort_t port, uchar_t value)
103 __asm__ __volatile__ (
106 : "a" (value), "Nd" (port)
111 * Read a byte from an I/O port.
113 inline uchar_t MyIn_Byte(ushort_t port)
117 __asm__ __volatile__ (
132 void Buzzer(ulong_t arg) {
133 ulong_t *doIBuzz = (ulong_t*)arg;
135 // Quick and dirty hack to save my hearing...
136 // I'm not too worried about timing, so I'll deal with concurrency later...
148 void Keyboard_Listener(ulong_t arg) {
149 ulong_t * doIBuzz = (ulong_t*)arg;
152 Print("Press F4 to turn on/off the speaker\n");
154 while ((key_press = Wait_For_Key())) {
155 if (key_press == KEY_F4) {
156 Print("\nToggling Speaker Port\n");
157 SerialPrintLevel(100,"\nToggling Speaker Port\n");
158 *doIBuzz = (*doIBuzz + 1) % 2;
159 } else if (key_press == KEY_F5) {
160 Print("\nMachine Restart\n");
161 SerialPrintLevel(100,"\nMachine Restart\n");
162 machine_real_restart();
170 extern char BSS_START, BSS_END;
175 /* This is an ugly hack to get at the VM memory */
176 ulong_t vm_range_start;
177 ulong_t vm_range_end;
178 ulong_t guest_kernel_start;
179 ulong_t guest_kernel_end;
183 int AllocateAndMapPagesForRange(uint_t start, uint_t length, pte_t template_pte)
187 for (address=start;address<start+length;address+=PAGE_SIZE) {
189 pte_t pte = template_pte;
194 pte.pageBaseAddr=PAGE_ALLIGNED_ADDR(page);
196 KASSERT(MapPage((void*)address,&pte,1));
205 * Kernel C code entry point.
206 * Initializes kernel subsystems, mounts filesystems,
207 * and spawns init process.
209 void Main(struct Boot_Info* bootInfo)
213 //Out_Byte(0x1234,5);
214 //Out_Byte(0x1234,5);
222 extern char BSS_START, BSS_END;
224 SerialPrint("BSS 0x%x->0x%x\n", &BSS_START, &BSS_END);
229 // SerialPrint("Guest Mem Dump at 0x%x\n", 0x100000);
230 //SerialMemDump((unsigned char *)(0x100000), 261 * 1024);
248 Init_Ne2k(&Packet_Received);
253 uip_ipaddr(ipaddr, 10,0,2,21); /* Local IP address */
254 uip_sethostaddr(ipaddr);
256 uip_ipaddr_t ripaddr;
257 uip_ipaddr(ripaddr, 10,0,2,20); /* Remote IP address */
259 /* Attempt a connection to port 8080 at address 10.0.2.20 */
260 struct uip_conn *conn;
261 conn = uip_connect(&ripaddr, HTONS(8080));
263 while(uip_len <= 0) {
264 uip_periodic_conn(conn);
266 NE2K_Transmit(uip_len+UIP_LLH_LEN); /* This will transmit an ARP packet */
269 while(l++ < 5000); /* When this is done, a response to the ARP should have been received. */
270 conn = uip_connect(&ripaddr, HTONS(8080));
272 while(uip_len <= 0) {
273 uip_periodic_conn(conn);
275 NE2K_Transmit(uip_len+UIP_LLH_LEN); /* This *should* transmit a SYN packet */
277 #endif /* TEST_NE2K */
281 // Print("Done; stalling\n");
286 SerialPrint("Dumping VM kernel Code (first 128 bytes @ 0x%x)\n", 0x100000);
287 SerialMemDump((unsigned char *)0x100000, 256);
289 SerialPrint("Dumping kernel Code (first 512 bytes @ 0x%x)\n",KERNEL_START);
290 SerialMemDump((unsigned char *)VM_KERNEL_START, 512);
296 struct Kernel_Thread *spin_thread;
298 spin_thread=Start_Kernel_Thread(Spin,0,PRIORITY_NORMAL,false);
305 struct Kernel_Thread * key_thread;
306 struct Kernel_Thread * spkr_thread;
310 SerialPrint("Dumping BIOS code ffff0-fffff\n\n");
311 SerialMemDump((unsigned char *)0x10fff0, 16);
313 SerialPrint("Dumping kernel Code (first 512 bytes @ 0x%x)\n",KERNEL_START);
314 SerialMemDump((unsigned char *)VM_KERNEL_START, 512);
317 SerialPrint("Noisemaker and keyboard listener threads\n");
318 key_thread = Start_Kernel_Thread(Keyboard_Listener, (ulong_t)&doIBuzz, PRIORITY_NORMAL, false);
319 spkr_thread = Start_Kernel_Thread(Buzzer, (ulong_t)&doIBuzz, PRIORITY_NORMAL, false);
330 SerialPrint("RunVMM returned, spinning\n");
334 TODO("Write a Virtual Machine Monitor");