Vadim Rozenfeld wrote on 2014-02-10: > On Mon, 2014-02-10 at 08:21 +0000, Zhang, Yang Z wrote: >> Hi Vadim, >> >> Do you know the latest status of Hyper-v Enlightenments supporting in KVM? > Like how many Hyper-v interfaces are supported in KVM? > > Hi Yang, > > There is no many at the moment. KVM currently supports the following > Hyper-V features: > > Guest Spinlocks > http://msdn.microsoft.com/en-us/library/windows/hardware/ff539081% > 28v=vs.85%29.aspx > > Local APIC MSR Accesses > http://msdn.microsoft.com/en-us/library/windows/hardware/ff542396% > 28v=vs.85%29.aspx > > Reference Time Counter > http://msdn.microsoft.com/en-us/library/windows/hardware/ff542637% > 28v=vs.85%29.aspx > > We are going to add: Reference TSC Page > http://msdn.microsoft.com/en-us/library/windows/hardware/ff542643% > 28v=vs.85%29.aspx > > Lazy EOI support, maybe more. >
Thanks for your update. More questions: I want to measure the performance improvement with hyper-v features enabled. So I want to know: Are those features enabled by default in KVM? How to turn off/on it manually? And how can I know whether guest is using it really? Also, Do you have any performance data? > Kind regards. > Vadim. > >> >> best regards >> yang >> >> -- >> To unsubscribe from this list: send the line "unsubscribe kvm" in >> the body of a message to majord...@vger.kernel.org >> More majordomo info at http://vger.kernel.org/majordomo-info.html > > Best regards, Yang
