On 21.12.2009, at 12:38, Michael S. Tsirkin wrote: > On Mon, Dec 21, 2009 at 12:22:53PM +0100, Alexander Graf wrote: >> >> On 21.12.2009, at 12:18, Michael S. Tsirkin wrote: >> >>> On Mon, Dec 21, 2009 at 01:12:26PM +0200, Avi Kivity wrote: >>>> On 12/20/2009 07:18 PM, Michael S. Tsirkin wrote: >>>>> >>>>>>> Hmm, then, shouldn't either kvm or qemu mask features that we do not >>>>>>> emulate well enough to make windows not crash? >>>>>>> >>>>>> -cpu host does that already, no? >>>>>> >>>>>> Alex >>>>>> >>>>> I expected so, but Avi here seems to say windows will crash if you >>>>> use a new CPU with it ... >>>>> >>>> >>>> No, Windows tries to detect changes in your hardware and assumes that if >>>> too many things change, you might be a pirate and requires you to phone >>>> their offices to re-authenticate. >>> >>> How often does a casual user upgrade his host CPU? >> >> I tend to have my VM images on an NFS share and expect them to work properly >> on all PCs I work on. >> So I guess the answer is "often"? >> >> Alex > > Yes but you are not a casual user, are you?
Well, we have two groups: 1) Casual user w/o management app 2) Enterprise user w/ management app So I clearly belong to the first group. > Consider a 64 bit guest to > see why moving a VM across machines needs some planning. -ENOPARSE We're still talking about bootup on different machines, not migration / loadvm. Alex
