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RE: [Xen-ia64-devel] One unstablity in fast syscall path
| To: | "Isaku Yamahata" <yamahata@xxxxxxxxxxxxx>, "Alex Williamson" <alex.williamson@xxxxxx> |
|---|---|
| Subject: | RE: [Xen-ia64-devel] One unstablity in fast syscall path |
| From: | "Tian, Kevin" <kevin.tian@xxxxxxxxx> |
| Date: | Tue, 13 Jun 2006 19:24:35 +0800 |
| Cc: | xen-ia64-devel <xen-ia64-devel@xxxxxxxxxxxxxxxxxxx> |
| Delivery-date: | Tue, 13 Jun 2006 04:25:22 -0700 |
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| Thread-index: | AcaO2lBbD9pLiidkQtewFa0fyT++lQAAVgww |
| Thread-topic: | [Xen-ia64-devel] One unstablity in fast syscall path |
>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 _______________________________________________ Xen-ia64-devel mailing list Xen-ia64-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-ia64-devel |
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