| Date | Fri, 16 Mar 2007 10:20:54 +0100 | From | Ingo Molnar <> | Subject | Re: [patch 14/26] Xen-paravirt_ops: add common patching machinery |
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* Jeremy Fitzhardinge <jeremy@goop.org> wrote:
> Implement the actual patching machinery. paravirt_patch_default() > contains the logic to automatically patch a callsite based on a few > simple rules: > > - if the paravirt_op function is paravirt_nop, then patch nops > - if the paravirt_op function is a jmp target, then jmp to it > - if the paravirt_op function is callable and doesn't clobber too much > for the callsite, call it directly > > paravirt_patch_default is suitable as a default implementation of > paravirt_ops.patch, will remove most of the expensive indirect calls > in favour of either a direct call or a pile of nops.
Acked-by: Ingo Molnar <mingo@elte.hu>
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