On Wed, 8 Aug 2007, Steven Rostedt wrote:
> On Wed, 8 Aug 2007, Andi Kleen wrote:
>
> >> paranoid_restore\trace:
> >> RESTORE_ALL 8
> >> - iretq
> >> + INTERRUPT_RETURN
> >
> >I suspect Xen will need much more changes anyways because of its
> >ring 3 guest. Are these changes sufficient for lguest?
>
>
> The above was what I was replying to.
If you were talking about the general iretq => INTERRUPT_RETURN, then the
answer is "Yes, they are sufficient". The first version of lguest ran the
guest kernel in ring 3 (using dual page tables for guest kernel and guest
user). The current version I'm pushing runs lguest in ring 1, and the
entry.S code worked for both.
-- Steve
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