[SOLVED] CS代考计算机代写 #include “devices/shutdown.h”

#include “devices/shutdown.h”
#include
#include
#include “devices/kbd.h”
#include “devices/serial.h”
#include “devices/timer.h”
#include “threads/io.h”
#include “threads/thread.h”
#ifdef USERPROG
#include “userprog/exception.h”
#endif
#ifdef FILESYS
#include “devices/block.h”
#include “filesys/filesys.h”
#endif

/* Keyboard control register port. */
#define CONTROL_REG 0x64

/* How to shut down when shutdown() is called. */
static enum shutdown_type how = SHUTDOWN_NONE;

static void print_stats (void);

/* Shuts down the machine in the way configured by
shutdown_configure().If the shutdown type is SHUTDOWN_NONE
(which is the default), returns without doing anything. */
void
shutdown (void)
{
switch (how)
{
case SHUTDOWN_POWER_OFF:
shutdown_power_off ();
break;

case SHUTDOWN_REBOOT:
shutdown_reboot ();
break;

default:
/* Nothing to do. */
break;
}
}

/* Sets TYPE as the way that machine will shut down when Pintos
execution is complete. */
void
shutdown_configure (enum shutdown_type type)
{
how = type;
}

/* Reboots the machine via the keyboard controller. */
void
shutdown_reboot (void)
{
printf (“Rebooting…
”);

/* See [kbd] for details on how to program the keyboard
* controller. */
for (;;)
{
int i;

/* Poll keyboard controller’s status byte until
* ‘input buffer empty’ is reported. */
for (i = 0; i < 0x10000; i++){if ((inb (CONTROL_REG) & 0x02) == 0)break;timer_udelay (2);}timer_udelay (50);/* Pulse bit 0 of the output port P2 of the keyboard controller. * This will reset the CPU. */outb (CONTROL_REG, 0xfe);timer_udelay (50);}}/* Powers down the machine we’re running on, as long as we’re running on Bochs or QEMU. */voidshutdown_power_off (void){const char s[] = “Shutdown”;//const char s[] = “System_powerdown”;const char *p;#ifdef FILESYSfilesys_done ();#endifprint_stats ();printf (“Powering off…
“);serial_flush ();/* This is a special power-off sequence supported by Bochs and QEMU, but not by physical hardware. */for (p = s; *p != ‘’; p++){outb (0x8900, *p);} // outw (0xB004, 0x00 | 0x2000);outw (0x604, 0x00 | 0x2000);/* This will power off a VMware VM if “gui.exitOnCLIHLT = TRUE” is set in its configuration file.(The “pintos” script does that automatically.)*///exit(-1);// for (;;);asm volatile (“cli; hlt” : : : “memory”);/* None of those worked. */printf (“still running…
“);for (;;);}/* Print statistics about Pintos execution. */static voidprint_stats (void){timer_print_stats ();thread_print_stats ();#ifdef FILESYSblock_print_stats ();#endifconsole_print_stats ();kbd_print_stats ();#ifdef USERPROGexception_print_stats ();#endif}