Messages in this thread | | | Date | Wed, 17 Apr 2013 13:12:37 +0100 | From | "Jan Beulich" <> | Subject | Re: KVM "Hyper-V emulation" -- this can be related "Linux on Hyper-V" ? Or "KVM emulates Hyper-V" as "Hyper-V emulates Hyper-V" ? Re: [PATCH 2/3] X86: Add a check to catch Xen emulation of Hyper-V |
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>>> On 17.04.13 at 12:16, "Michael S. Tsirkin" <mst@redhat.com> wrote: > If the hypervisor says it's Hyper-V, that's because it wants > guests to use Hyper-V. I don't see why is guest second-guessing > this a good idea.
There are two reasons here: For one, when the hypervisor is not Hyper-V, but is providing some Hyper-V emulation, that's intended for Windows guests to use, not e.g. Linux ones, especially when such guests could use the native hypervisor interface with much greater benefit.
And second, there reportedly are features of (newer?) Hyper-V that some emulation may not provide, but that are also not easily detectable.
Jan
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