On Tue, Dec 15, 2009 at 11:37:34AM -0600, Anthony Liguori wrote: > Michael S. Tsirkin wrote: >> I don't think it does: cpuid is an unpriveledged operation, >> is it not? >> > > We (qemu) ask the kernel (kvm.ko) to filter out the features bits from > the cpuid we expose to the guest in order to remove feature bits it > (kvm.ko) does not support. > > Regards, > > Anthony Liguori
I see. But unfortunately this bit has multiple meanings for 64/32 bit, kvm does not know whether you will run a 32 bit or a 64 bit program. This is a cpu architecture bug. -- MST
