/* Powers down the machine we're running on,
as long as we're running on Bochs or QEMU. */
void
shutdown_power_off (void)
{
const char s[] = "Shutdown";
const char *p;
#ifdef FILESYS
filesys_done ();
#endif
print_stats ();
printf ("Powering off...\n");
serial_flush ();
/* ACPI Shutdown sequence supported by Bochs and QEMU
http://forum.osdev.org/viewtopic.php?t=16990 */
outw( 0xB004, 0x0 | 0x2000 );
/* This is a special power-off sequence supported by Bochs and
QEMU, but not by physical hardware. */
for (p = s; *p != '\0'; p++)
outb (0x8900, *p);
/* This will power off a VMware VM if "gui.exitOnCLIHLT = TRUE"
is set in its configuration file. (The "pintos" script does
that automatically.) */
asm volatile ("cli; hlt" : : : "memory");
/* None of those worked. */
printf ("still running...\n");
for (;;);
}
/* Reboots the machine via the keyboard controller. */
void
shutdown_reboot (void)
{
printf ("Rebooting...\n");
#ifdef FILESYS
enum intr_level old_level = intr_enable ();
filesys_done ();
intr_set_level (old_level);
#endif
/* 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. */
void
shutdown_power_off (void)
{
switch (shutdown_power_off_recursion ++)
{
case 0:
#ifdef FILESYS
{
enum intr_level old_level = intr_enable ();
filesys_done ();
intr_set_level (old_level);
}
#endif
case 1:
print_stats ();
printf ("Powering off...\n");
serial_flush ();
break;
default:
shutdown_power_off_recursion = 2;
}
for (;;)
{
/* This is a special power-off sequence supported by Bochs and
QEMU, but not by physical hardware. */
const char *p;
for (p = "Shutdown"; *p; ++p)
outb (0x8900, *p);
/* This will power off a VMware VM if "gui.exitOnCLIHLT = TRUE"
is set in its configuration file. (The "pintos" script does
that automatically.) */
asm volatile ("cli; hlt");
printf ("still running...\n");
}
}
/* Powers down the machine we're running on,
as long as we're running on Bochs or QEMU. */
void
shutdown_power_off (void)
{
const char s[] = "Shutdown";
const char *p;
#ifdef FILESYS
printf("Closing filesystem\n");
filesys_done ();
printf("Printing Files in root directory\n");
void * LIST;
fsutil_ls(LIST);
printf("Printed Files in root directory\n");
printf("Setting *inode NULL\n");
printf("Closed filesystem\n");
#endif
print_stats ();
printf ("Powering off...\n");
serial_flush ();
/* This is a special power-off sequence supported by Bochs and
QEMU, but not by physical hardware. */
for (p = s; *p != '\0'; p++)
outb (0x8900, *p);
/* This will power off a VMware VM if "gui.exitOnCLIHLT = TRUE"
is set in its configuration file. (The "pintos" script does
that automatically.) */
asm volatile ("cli; hlt" : : : "memory");
/* None of those worked. */
printf ("still running...\n");
for (;;);
}
