[Xen-users] Question about reserving one CPU for the Xen hypervisorin in case of vm exit.

["Liang Yang" <multisyncfe991@xxxxxxxxxxx>]

Hi,

My platform has two dual-core processors with VT-x enabled. Suppose I use
"xm vcpu-pin" command to set up a fixed mapping between each physical
processor/core to virtual cpu (to avoid possible migration).

I have three domains, one is dom0, the second is domUP and the third is
domUF (HVM domain). I give each domain one CPU and reserve one for
hypervisor. What I want to do is to always keep one CPU idle (reserving it
for VMM), Xen hypervisor can thus always use this idle CPU whenever a "vm
exit" happens and the guest HVM domain still has its own CPU to do some
overlapping processing (to improve performance).

Is this feasible?

Thanks,

Liang

_______________________________________________
Xen-users mailing list
Xen-users@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-users