Re: [PATCH v6 03/12] Retry fault before vmentry

From: Marcelo Tosatti
Date: Wed Oct 06 2010 - 10:54:10 EST


On Wed, Oct 06, 2010 at 01:07:04PM +0200, Gleb Natapov wrote:
> > Can't you set a bit in vcpu->requests instead, and handle it in "out:"
> > at the end of vcpu_enter_guest?
> >
> > To have a single entry point for pagefaults, after vmexit handling.
> Jumping to "out:" will skip vmexit handling anyway, so we will not reuse
> same call site anyway. I don't see yet why the way you propose will have
> an advantage.

What i meant was to call pagefault handler after vmexit handling.

Because the way it is in your patch now, with pre pagefault on entry,
one has to make an effort to verify ordering wrt other events on entry
processing.

With pre pagefault after vmexit, its more natural.

Does that make sense?

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/