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qemu
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new reset API - shutdown support 

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@939 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
bellard 2004-06-20 13:00:26 +00:00
parent d7d02e3c3a
commit a2f659ee48
1 changed files with 16 additions and 0 deletions
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16
hw/pc.c
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@ -217,6 +217,9 @@ static uint32_t ioport92_read(void *opaque, uint32_t addr)
void bochs_bios_write(void *opaque, uint32_t addr, uint32_t val)
{
static const char shutdown_str[8] = "Shutdown";
static int shutdown_index = 0;
switch(addr) {
/* Bochs BIOS messages */
case 0x400:
@ -229,6 +232,18 @@ void bochs_bios_write(void *opaque, uint32_t addr, uint32_t val)
fprintf(stderr, "%c", val);
#endif
break;
case 0x8900:
/* same as Bochs power off */
if (val == shutdown_str[shutdown_index]) {
shutdown_index++;
if (shutdown_index == 8) {
shutdown_index = 0;
qemu_system_shutdown_request();
}
} else {
shutdown_index = 0;
}
break;
/* LGPL'ed VGA BIOS messages */
case 0x501:
@ -250,6 +265,7 @@ void bochs_bios_init(void)
register_ioport_write(0x401, 1, 2, bochs_bios_write, NULL);
register_ioport_write(0x402, 1, 1, bochs_bios_write, NULL);
register_ioport_write(0x403, 1, 1, bochs_bios_write, NULL);
register_ioport_write(0x8900, 1, 1, bochs_bios_write, NULL);
register_ioport_write(0x501, 1, 2, bochs_bios_write, NULL);
register_ioport_write(0x502, 1, 2, bochs_bios_write, NULL);