Re: [PATCH v6 5/5] x86/kvm: Avoid dynamic allocation of pvclock data when SEV is active

From: Borislav Petkov
Date: Tue Sep 11 2018 - 09:55:25 EST

On Tue, Sep 11, 2018 at 01:07:06PM +0200, Paolo Bonzini wrote:
> If the host TSCs are unsynchronized then yes, that's what happens. And
> you can do live migration from synchronized to unsynchronized.

Which brings us back to my original question: why would we *ever* want
to support unsynchronized TSCs in a guest? Such machines are a real
abomination for baremetal - it doesn't make *any* sense to me to have
that in guests too, if it can be helped...


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