xen discuss - Jan 2010 - CPU/Memory allocation for Dom0/DomU

Hi,
Hope someone could help me.
Is it possible to allocate one physical CPU to Dom0 an another physicals CPU to
all DomU guests ? And similar thing for memory,let say 2G of RAM to Dom0 and
rest to DomU ?
So under any circumstances DomU guests won''t use Dom0 resources ?

Thanks a lot.
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Alxen4 wrote:
> Hi,
> Hope someone could help me.
> Is it possible to allocate one physical CPU to Dom0 an another 
 > physicals CPU to all DomU guests ? And similar thing for memory,
 > let say 2G of RAM to Dom0 and rest to DomU ?
> So under any circumstances DomU guests won''t use Dom0 resources ?
> 
> Thanks a lot.
You can do this via the grub line.. You can limit dom0 memory
using dom0_mem, then limit the CPUs dom0 uses via max vcpus
and pin. e.g.
   kernel /boot/amd64/xen.gz dom0_mem=2G dom0_max_vcpus=2 dom0_vcpus_pin=true


to fix the domU vcpu mapping, you can use virsh vcpupin.
   virsh help vcpupin



MRJ

Yep,worked well.

Thank you very much.
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