Richard Simpson wrote:
On 08/04/10 09:52, Andre Przywara wrote:
Can you try to boot the attached multiboot "kernel", which just outputs
a brief CPUID dump?
$ qemu-kvm -kernel cpuid_mb -vnc :0
(Unfortunately I have no serial console support in there yet, so you
either have to write the values down or screenshot it).
In the 4th line from the button it should print NX (after SYSCALL).
OK, that was fun! Resulting screen shots are attached.
...default.png With command line above.
...cpu_host.png With -cpu host option added.
...no_kvm.png With -no-kvm option added.
I hope that helps!
OK, AFAIK there are several flags missing. I dimly remember there was a
bug with masking the CPUID bits in older kernels, so I guess you have to
celebrate your uptime for the last time and then give it a reboot with a
more up-to-date host kernel.
(I also rebooted my desktop after I made the one year and now am gone
green with turning it off over night ;-)
Maybe you get around with rebuilding fixed versions of kvm.ko and
kvm_amd.ko, I can provide a fix for you if you wish (please point me to
a way to get the actual kernel source you use).
The userspace was up-to-date? (qemu-kvm 0.12.3)?
Regards,
Andre.
--
Andre Przywara
AMD-Operating System Research Center (OSRC), Dresden, Germany
Tel: +49 351 488-3567-12
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