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added IDE WIN_READ_NATIVE_MAX command (2.5.xx fix) - added support for proper system shutdown

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git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@308 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
bellard 2003-07-04 14:38:25 +00:00
parent 7916e2245d
commit cd4c3e888a
1 changed files with 37 additions and 1 deletions
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38
vl.c
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@ -2282,6 +2282,11 @@ void ide_ioport_write(CPUX86State *env, uint32_t addr, uint32_t val)
n = s->req_nb_sectors;
ide_transfer_start(s, 512 * n, ide_sector_write);
break;
case WIN_READ_NATIVE_MAX:
ide_set_sector(s, s->nb_sectors - 1);
s->status = READY_STAT;
ide_set_irq(s);
break;
default:
abort_cmd:
ide_abort_command(s);
@ -2449,6 +2454,34 @@ void ide_init(void)
register_ioport_read(0x1f0, 4, ide_data_readl, 4);
}
/***********************************************************/
/* simulate reset (stop qemu) */
int reset_requested;
uint32_t kbd_read_status(CPUX86State *env, uint32_t addr)
{
return 0;
}
void kbd_write_command(CPUX86State *env, uint32_t addr, uint32_t val)
{
switch(val) {
case 0xfe:
reset_requested = 1;
cpu_x86_interrupt(global_env, CPU_INTERRUPT_EXIT);
break;
default:
break;
}
}
void kbd_init(void)
{
register_ioport_read(0x64, 1, kbd_read_status, 1);
register_ioport_write(0x64, 1, kbd_write_command, 1);
}
/***********************************************************/
/* cpu signal handler */
static void host_segv_handler(int host_signum, siginfo_t *info,
@ -2497,7 +2530,9 @@ void main_loop(void *opaque)
for(;;) {
ret = cpu_x86_exec(env);
if (reset_requested)
break;
/* if hlt instruction, we wait until the next IRQ */
if (ret == EXCP_HLT)
timeout = 10;
@ -2767,6 +2802,7 @@ int main(int argc, char **argv)
serial_init();
ne2000_init();
ide_init();
kbd_init();
/* setup cpu signal handlers for MMU / self modifying code handling */
sigfillset(&act.sa_mask);