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SubjectRe: [patch 04/17] Add pagetable accessors to pack and unpack pagetable entries
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.

J
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