[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] Re: Xen/ia64 status (and solicitation for alpha testers and developers)
> All the privilege-sensitive (and reads of write-privilege-sensitive > registers) also need to trap and be emulated. I force this to > happen by finding and translating all such instructions to other > unique illegal/privilged bit patterns that trap. OK that's what was guessing from code in Xen. It's quite nice that this is workable, in fact! > This is all slow but, as with x86, paravirtualization will greatly > reduce the number of privops emulated and bring performance to > within a couple percent of native (as demonstrated in our VM'04 > paper on vBlades). Out of interest, what are the modifications likely to look like in terms of the source tree? Will it be necessary to introduce a new (sub?) architecture to Linux in order to incorporate them? Also, do you / will you support legacy IA-32 code? Sorry for all the questions. Xen on IA-64 looks very cool stuff! Cheers, Mark > > Hope that helps! > Dan > > > > > > > > ------------------------------------------------------- > SF email is sponsored by - The IT Product Guide > Read honest & candid reviews on hundreds of IT Products from real users. > Discover which products truly live up to the hype. Start reading now. > http://productguide.itmanagersjournal.com/ > _______________________________________________ > Xen-devel mailing list > Xen-devel@xxxxxxxxxxxxxxxxxxxxx > https://lists.sourceforge.net/lists/listinfo/xen-devel ------------------------------------------------------- SF email is sponsored by - The IT Product Guide Read honest & candid reviews on hundreds of IT Products from real users. Discover which products truly live up to the hype. Start reading now. http://productguide.itmanagersjournal.com/ _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/xen-devel
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