kvm-82 doesn't boot 64bit (?) [cpu0 unhandled wrmsr]

[Paolo Pedaletti <paolo.pedaletti@gmail.com>]

[-- Attachment #1: Type: text/plain, Size: 2038 bytes --]

ciao,
I have a problem to run a 64 bit intel guest inside a 64 bit intel host.
It doesn' boot.

host: Intel(R) Core(TM)2 CPU 6420  @ 2.13GHz
OS: ubuntu 8.10 64 bit
	($ file /bin/ls>/bin/ls: ELF 64-bit LSB xecutable, x86-64,...)
kvm-82

$ modinfo kvm
filename:       /lib/modules/2.6.27-9-server/extra/kvm.ko
license:        GPL
author:         Qumranet
version:        kvm-82
srcversion:     26E72577C6F752FF6FCE2AE
depends:
vermagic:       2.6.27-9-server SMP mod_unload modversions
parm:           oos_shadow:bool
parm:           msi2intx:bool

$ modinfo kvm_intel
filename:       /lib/modules/2.6.27-9-server/extra/kvm-intel.ko
license:        GPL
author:         Qumranet
version:        kvm-82
srcversion:     6F53E897CA902DDC25AC326
depends:        kvm
vermagic:       2.6.27-9-server SMP mod_unload modversions
parm:           bypass_guest_pf:bool
parm:           enable_vpid:bool
parm:           flexpriority_enabled:bool
parm:           enable_ept:bool
parm:           emulate_invalid_guest_state:bool

trying to boot the guest:
/usr/local/bin/qemu-system-x86_64 -cpu core2duo
	-hda ./ubuntu-server-8.10_64bit.root
	-cdrom /home/vm/iso/ubuntu/ubuntu-8.10-server-i386.iso
	-k it -usbdevice tablet -boot d

as soon as I run this command, in syslog appear:
cpu0: unhandled wrmsr: 0xc0010117 data 0
(always the same address)

and in the guest window, the latest 3 lines:
Initializing cgroup subsys ns
Initializing cgroup subsys cpuacct
Initializing cgroup subsys memory

(screendump in attachment)

the same with -cpu: coreduo

no problem (but still appear "unhandled wrmsr" error) with
all the other cpu

questions:
1) with -cpu qemu64 I obtain in the guest:
cat /proc/cpuinfo
vendor_id: GenuineIntel
but it doesn't seem a 64 bit cpu (?)

2) can I do some deeper debug to provide more useful info?
(or suggest me a different command-line)

3) what does "logfile" command (should) do?
CTRL-ALT-2
logfile /tmp/logfile
but there is no /tmp/logfile on host

thank you.

-- 
/* Paolo Pedaletti,
 * paolo@pedaletti.it www.pedaletti.it */

[-- Attachment #2: screendump.gif --]
[-- Type: image/gif, Size: 11811 bytes --]