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[Xen-devel] Re: lazy context switching



Hi Hollis --

Sorry for the late reply... keeping up with xen-devel
is getting tough!

How does Linux do this on Power?  Xen/ia64 heavily
leverages the equivalent Linux/ia64 code.  As you
may know, Linux/ia64 scatters state all over
memory and uses "unwind descriptors" so that it
can recover all the state.  I'd imagine Power does
something similar...

Dan



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