> > > Hyper-V and KVM follow the spec, the issue that 35b69a42 > > > "(clockevents/drivers/ > > > i8253: Add support for PIT shutdown quirk") fixed is in i8253 > > > drivers, not Hyper-v, so delete the zero timer counter register in > > > shutdown, and delete PIT shutdown quirk for Hyper-v > > > > From the standpoint of Hyper-V, I'm good with this change. But > > there's a risk that old hardware might not be compliant with the spec, > > and needs the zero'ing for some reason. The experts in the x86 space > > will be in the best position to assess the risk. > > Yep, my feeling exactly. My input is purely from reading those crusty old specs. Hi Thomas: Could you give some suggestion about this patch? Thanks -Li
