Re: [PATCH RFC 0/2] assign each vcpu an owning thread and improve yielding

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> This series improves yielding on architectures that cannot disable preemption
> while entering the guest and makes the creating thread of a VCPU the owning
> thread and therefore the yield target when yielding to that VCPU.
> 
> We should focus on the case creating thread == executing thread and therefore
> remove the complicated handling of PIDs involving synchronize_rcus.
> 
> This way we can speed up the creation of VCPUs and directly yield to the
> executing vcpu threads.
> 
> Please note that - in theory - all VCPU ioctls should be triggered from the same
> VCPU thread, so changing threads is not a scenario we should optimize.
> 
> 
> David Hildenbrand (2):
>   KVM: don't check for PF_VCPU when yielding
>   KVM: thread creating a vcpu is the owner of that vcpu
> 
>  include/linux/kvm_host.h |  1 +
>  virt/kvm/kvm_main.c      | 22 ++--------------------
>  2 files changed, 3 insertions(+), 20 deletions(-)
> 

Hi Paolo,

would be good if you could have a look at these patches.

Thanks!

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