Re: [PATCH 0/8] KVM updates for 2.6.20-rc2

* Avi Kivity <avi@xxxxxxxxxxxx> wrote:

> >hm. Could you try to just do a vmresume nevertheless - maybe it works 
> >but is undocumented?
> 
> I'd hate to do that.  There are at least three implementations of VT 
> (PD, Core, Core2) and maybe more when steppings and microcode updates 
> are considered.  Not to mention having kvm fail when a new cpu is 
> introduced is not a pleasant scenario.

lets check whether it's even possible ... Then we could ask Intel to 
clarify their position on this. I can see no real reason why a vmclear 
should really make it impossible to re-use the already loaded context 
data /on the same CPU/. And that is the important case. When we migrate 
to another CPU we have to do a VMLAUNCH anyway, upon the first execution 
of that context.

        Ingo

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