Bug#599200:

[Jan Luebbe <jluebbe@lasnet.de>]

Hi, i'm the maintainer of the qemu-kvm package and have now tried
serveral combinations:

Host with 64-bit CPU and 32bit squeeze kernel/userspace and 32bit lenny
or squeeze netinst as guest:
  lm in the host's /proc/cpuinfo but *not* in the guest's

Host with 64-bit CPU and 64bit sid kernel/userspace and 32bit lenny
netinst as guest:
  lm in *both* host's and guest's /proc/cpuinfo

Host with 64-bit CPU and 64bit sid kernel/userspace and 64bit lenny
netinst as guest:
  lm in *both* host's and guest's /proc/cpuinfo

Host with 32-bit CPU and 32bit squeeze kernel/userspace and 32bit lenny
netinst as guest:
  lm in *neither* host's nor guest's /proc/cpuinfo

Each of those cases is what I'd expect.

Petter Reinholdtsen wrote he was using Lenny's kvm:
> QEMU Virtual CPU version 0.10.0

That verion is rather old and if it is indeed broken, i don't think we
could get the cpuid fixed soon.

I'll setup a lenny machine and try it there, too.

Jan