On Mon, 2013-02-18 at 20:39 -0800, H. Peter Anvin wrote:
> > static void switch_to_trace_idt(void *arg)
> > {
> > load_idt(&trace_idt_descr);
> > }
> >
> > static void restore_original_idt(void *arg)
> > {
> > load_idt(this_cpu_ptr(&idt_descr));
> > }
> >
>
> Yes. If there needs to be handshaking about whose IDT is currently
> installed I'm much happier if that handshake is done explicitly, rather
> than as a save/restore function which will break when we have to add
> another one which for whatever reason isn't nesting.
Agreed.
Seiji, can you make the update?
Thanks,
-- Steve
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