Il 08/10/2014 12:06, Radim Krčmář ha scritto:
> > > - why is host_initiated required?
> 
> > Since if the guest writes to the MSR, it means it wants to rearm the TSC 
> > deadline. Even if the deadline passed, interrupt should be triggered.
> 
> MSR isn't 0, so the deadline hasn't passed for the guest yet.
> 
> > If the guest writes the same value on the deadline MSR twice, it might 
> > expect two interrupts.
> 
> When guest writes to it without getting an interrupt first, it might
> expect just one.  (Which it better IMO.)

Indeed that was my doubt as well.

Paolo
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