X-Git-Url: http://v3vee.org/palacios/gitweb/gitweb.cgi?p=palacios.git;a=blobdiff_plain;f=misc%2Ftest_vm%2Fsrc%2Fgeekos%2Fmain.c;fp=misc%2Ftest_vm%2Fsrc%2Fgeekos%2Fmain.c;h=9d48319fc7da03c54dd5651d765372bd66bcce8f;hp=0000000000000000000000000000000000000000;hb=ddc16b0737cf58f7aa90a69c6652cdf4090aec51;hpb=626595465a2c6987606a6bc697df65130ad8c2d3

diff --git a/misc/test_vm/src/geekos/main.c b/misc/test_vm/src/geekos/main.c
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+++ b/misc/test_vm/src/geekos/main.c
@@ -0,0 +1,308 @@
+/*
+ * 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>
+ * $Revision: 1.2 $
+ * 
+ * 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/gdt.h>
+
+
+/*
+  static inline unsigned int cpuid_ecx(unsigned int op)
+  {
+  unsigned int eax, ecx;
+  
+  __asm__("cpuid"
+  : "=a" (eax), "=c" (ecx)
+  : "0" (op)
+  : "bx", "dx" );
+  
+  return ecx;
+  }
+*/
+
+
+
+extern void Get_MSR(ulong_t msr, unsigned int *val1, unsigned int *val2);
+extern void Set_MSR(ulong_t msr, ulong_t val1, ulong_t val2);
+extern uint_t Get_EIP();
+extern uint_t Get_ESP();
+extern uint_t Get_EBP();
+
+
+
+extern void Invalidate_PG(void * addr);
+
+
+int foo=42;
+
+#define SPEAKER_PORT 0x61
+
+
+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;
+}
+
+
+extern void MyBuzzVM();
+
+#define MYBUZZVM_START MyBuzzVM
+#define MYBUZZVM_LEN   0x3d
+
+void BuzzVM()
+{
+  int x;
+  int j;
+  unsigned char init;
+  
+  
+  init=MyIn_Byte(SPEAKER_PORT);
+
+  while (1) {
+    MyOut_Byte(SPEAKER_PORT, init|0x2);
+    for (j=0;j<1000000;j++) { 
+      x+=j;
+    }
+    MyOut_Byte(SPEAKER_PORT, init);
+    for (j=0;j<1000000;j++) { 
+      x+=j;
+    }
+  }
+}
+
+
+
+extern void RunVM();
+
+int vmRunning = 0;
+
+void RunVM() {
+  vmRunning = 1;
+
+  while(1);
+}
+
+
+
+
+
+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 Hello(ulong_t arg)
+{
+  char *b="hello ";
+  char byte;
+  short port=0xe9;
+  int i;
+  while(1){
+    for (i=0;i<6;i++) { 
+      byte=b[i];
+      __asm__ __volatile__ ("outb %b0, %w1" : : "a"(byte), "Nd"(port) );
+    }
+  }
+}
+
+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;
+
+
+
+
+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)
+{
+  struct Kernel_Thread * key_thread;
+  struct Kernel_Thread * spkr_thread;
+
+
+
+  ulong_t doIBuzz = 0;
+
+  Init_BSS();
+  Init_Screen();
+  InitSerial();
+  Init_Mem(bootInfo);
+  Init_CRC32();
+  Init_TSS();
+  Init_Interrupts();
+  Init_Scheduler();
+  Init_Traps();
+  //  Init_Timer();
+  Init_Keyboard();
+  Init_VM(bootInfo);
+  Init_Paging();
+
+  //  Init_IDE();
+
+
+
+
+
+
+
+
+  SerialPrint("\n\nHello, Welcome to this horrid output-only serial interface\n");
+  SerialPrint("Eventually, this will let us control the VMM\n\n");
+ 
+  SerialPrint("\n\n===>");
+  
+
+
+  
+
+  
+  SerialPrintLevel(1000,"Launching 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);
+
+
+
+
+
+  SerialPrintLevel(1000,"Next: setup GDT\n");
+
+  {
+    int i = 0;
+    for (i = 0; i < 1024; i++) {
+      uint_t * addr = (uint_t *)0xa00000;
+      uint_t foo = *addr;
+
+      SerialPrint("Read From 0x%x=%d\n", (uint_t)addr, foo);
+    }
+
+  }
+  //  Invalidate_PG((void *)0x2000);
+
+  //  VM_Test(bootInfo, 32);  
+  //VM_Test(bootInfo, 1536);
+
+  while(1);
+  
+  /* Now this thread is done. */
+  Exit(0);
+}