i would like to know whether i should do these changes (apic=1/acip=1) before installing windows xp (multiprocessor) or whether it can be done after windows xp is installed.
Thanks again
Regards
~Sameer
On Mon, Nov 24, 2008 at 9:13 PM, Cole Robinson <crobinso@xxxxxxxxxx> wrote:
There isn't support in virt-manager for changing acpi and apic valuesSameer Naik wrote:
> Hi,
> I have been using virt-manager for a long long time now.
> Recently i have been facing an issue... when i try to install windows xp
> (sp3) with multiprocessor
> support (i.e. vcpu allocation > 1) the system installs fine, but then
> virt-manager displays very high
> cpu (24-30%) utilization, even when the xp guest is idle. also when i try to
> poweroff the system, i get the "It is now
> Safe to poweroff your computer" message and also when this message is
> displayed the cpu utilzation is around
> 24-30%.
>
> After posting a similar mail to the xend-users mailing list, i was advised
> to use ACPI=1 and APIC=1 in
> the domU configuration. But since i am using virt-manager i have no idea
> where i should put these values and
> whether i need to specify these before installing xp or whether it can be
> done after installing.
>
> Or should i create ahand written domU configuration and use "xm create" to
> create the virtual machine?
>
> Please Help
>
of an existing guest (yet).
You can change these values via the command line:
virsh dumpxml vmname > xml
edit xml: between the <os> block and the <clock> block, add
<features>
<apic/>
<acpi/>
</features>
virsh define xml
If you are using f9 or f10, the above can be simplified with the 'virsh
edit' command, which will alter the xml in place.
Thanks,
Cole
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