RE: [Xen-ia64-devel] One unstablity in fast syscall path

["Tian, Kevin" <kevin.tian@xxxxxxxxx>]

>From: Isaku Yamahata [mailto:yamahata@xxxxxxxxxxxxx]
>Sent: 2006年6月13日 19:13
>
>There are the following choices for right fix, I think.
>
>A. use hypercall instead of hyperprivop.
>B. introduce new flag for hyperprivop instread VPSR.ic as Tristan
>proposed.
>C. use one of itr to map vDSO.
>D. abondan vDSO paravirtualization.
>

Option B seems reasonable since original vPSR.ic is also borrowed 
to serve as an indicator.

Thanks,
Kevin

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