On Mon, Mar 30, 2009 at 06:04:45PM +0200, Jan Kiszka wrote:
> Gleb Natapov wrote:
> > The patch fixes two problems with task switching.
> > 1. Back link is written to a wrong TSS.
> > 2. Instruction emulation is not needed if the reason for task switch
> > is a task gate in IDT and access to it is caused by an external even.
> >
> > 2 is currently solved only for VMX since there is not reliable way to
> > skip an instruction in SVM. We should emulate it instead.
>
> Does this series fix all issues Bernhard, Thomas and Julian stumbled over?
>
Haven't tried. I wrote my own tests for task switching. How can I check it?
--
Gleb.
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