Messages in this thread | | | Date | Wed, 04 Apr 2007 08:45:44 -0700 | From | Jeremy Fitzhardinge <> | Subject | Re: [patch 04/17] Add pagetable accessors to pack and unpack pagetable entries |
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Andi Kleen wrote: > Why is there a difference for null syscall? I had assumed we patched all the > fast path cases relevant there. Do you have an idea where it comes from?
Sure. There's indirect calls for things like sti/cli/iret. It goes back to native speed when you patch the real instructions inline.
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