Re: [Qemu-devel] Re: [PATCH] Reboot CPU on triple fault

[Anthony Liguori]

Paul Brook wrote:
> > +    if (env->old_exception == EXCP08_DBLE) {
> > +        fprintf(stderr, "qemu: warning: triple fault\n");
> >     
>
> IMHO There's no reason to print a message to stderr. This is all well defined 
> behavior, and the accepted way of exiting from 286 protected mode.
>   

Moreover, it's a standard means of rebooting in the absence of APM or 
ACPI.  See native_machine_emergency_restart() in 
arch/x86/kernel/reboot.c in Linux.

Regards,

Anthony Liguori

> Paul
>
>
>