Messages in this thread | | | Subject | Re: [RFC] CPUID usage for interaction between Hypervisors and Linux. | From | Alok Kataria <> | Date | Wed, 01 Oct 2008 10:33:51 -0700 |
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On Wed, 2008-10-01 at 10:21 -0700, H. Peter Anvin wrote: > Alok Kataria wrote: > > > > (This proposal may be adopted by other guest OSes. However, that is not > > a requirement because a hypervisor can expose a different CPUID > > interface depending on the guest OS type that is specified by the VM > > configuration.) > > > > Excuse me, but that is blatantly idiotic. Expecting the user having to > configure a VM to match the target OS is *exactly* as stupid as > expecting the user to reconfigure the BIOS. It's totally the wrong > thing to do.
Hi Peter,
Its not a user who has to do anything special here. There are *intelligent* VM developers out there who can export a different CPUid interface depending on the guest OS type. And this is what most of the hypervisors do (not necessarily for CPUID, but for other things right now).
Alok. > > -hpa
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