implement the optimized syscall instructions for AMD CPUs
|Reported by:||mmadia||Owned by:||nobody|
|Has a Patch:||no||Platform:||All|
Mentioned in this mailing list thread,
> >PS: In case someone is looking for a (small) challenge: We still don't use > >the optimized syscall instructions for AMD CPUs. > > AMDs can't use sysenter/sysexit? At least older models don't support those. No idea whether they've added it in newer ones. Though I suspect they wouldn't have done that, since they have their own instructions (syscall/sysret), which are quite similar. You should find a "initial_commpage_syscall():..." line in the syslog, telling you what mechanism the kernel has decided to use.
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