[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [DOC RFC] Heterogeneous Multi Processing Support in Xen
> On Dec 16, 2016, at 4:05 PM, George Dunlap <george.dunlap@xxxxxxxxxx> wrote: > > >> On Dec 8, 2016, at 2:29 AM, Dario Faggioli <dario.faggioli@xxxxxxxxxx> wrote: > >> For the vCPUs for which no class is specified, default behavior applies. >> >> **TODO:** note that I think it must be possible to associate more than >> one class to a vCPU. This is expressed in the example above, and assumed >> to be true throughout the document. It might be, though, that, at least at >> early stages (see implementation phases below), we will enable only 1-to-1 >> mapping. >> >> **TODO:** default can be, either: >> >> 1. the vCPU can run on any CPU of any class, >> 2. the vCPU can only run on a specific, arbitrary decided, class (and I'd say >> that should be class 0). > > I thought that one of the issues was that sometimes there are instructions > available on one pcpu and not on another; in which case once the kernel > initializes a particular vcpu on a particular pcpu it needs to stay there. Sorry, this should say, “once a kernel initializes a particular vcpu on a particular *class of* pcpu, it needs to stay *within that class*.” -G _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx https://lists.xen.org/xen-devel
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