Re: kvm-hint-dedicated requires host CPU passthrough?
Hi Stefan, sorry for my very late response as I was temporarily out
and unfortunately missed this email thread.
For your question (remark), yes, you're right. This feature should
not apply to specific <cpu mode='host-passthrough'... /> scenario.
Something else to look into is that the feature can only work if the
serving layer underneath by capabilities does support the request.
Short, yes, this needs correction.
- Wim10H.
On Wed, 20 May 2020 18:13:57 +0100
Stefan Hajnoczi <stefanha(a)redhat.com> wrote:
Hi,
libvirt refuses to set KVM_HINTS_DEDICATED when the CPU model is not
host-passthrough.
Is there a reason for this limitation?
My understanding is that KVM_HINTS_DEDICATED means the vCPU is pinned to
a host CPU that is not shared with other tasks. Any KVM vCPU should be
able to support this feature, regardless of whether host-passthrough is
used or not.
Stefan