Re: [RFC] Paravirt timer for KVM

Carsten Otte
2007-10-15T11:02:09Z

Gerd Hoffmann wrote:
> With VT you can attempt to make that invisible to the guest using the
> tsc offset field. Probably svm can do that too (didn't check docs
> though). kvm-lite can't (what is the status btw?). Xen "solves" that
> by not doing power management *evil grin*.
On s390, we've had an instruction for that ever since (store clock),
that works with an offset field with hardware support. Works great for us.
If VT and SVM can do the same, I'd vote for using it if we can.