[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] Sparc32/64 porting effort, interest?
Le Samedi 05 AoÃt 2006 23:05, Blue Swirl a Ãcrit : > Hi, > > I've developed some bits for Qemu and OpenBIOS Sparc32/64 versions and I > know their internals. Maybe I could use that knowledge to port Xen to Sparc > platforms. > > Can somone guesstimate what kind of effort would be needed for Sparc32 port > targeted at hardware emulated by Qemu (SS5), for example? > > Are there other developers interested in Sparc port? Big questions! Which hardware are you targetting ? Sparc or SparcV9? Sparc doesn't have a three level protection mechanism. So adding a VMM can be tricky. PowerPc people may have ideas to handle this case. On the pros side, sparc doesn't have an arch-defined MMU, so you can create you own para-virtualized MMU fitting well into Xen. AFAIK, only Niagara has a three level protection. Maybe only niagara makes sense for Xen. Porting Xen requires a very good knowledge of the CPU (and of Xen internals of course). PowerPC people may give you a better time estimation; a rough one may be <1 year to run dom0 and <1 year to run domU. At the last XenSummit, there was at least one people from Sun. I don't know wether other developers are interested. Tristan. _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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