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SubjectRe: [patch 3/3] x86: kvm guest side support for KVM_HC_RT_PRIO hypercall
> I think you are missing the following point:
>
> "vcpu0 can be interrupted when its not in a spinlock protected section,
> otherwise it can't."
>
> So you _have_ to communicate to the host when the guest enters/leaves a
> critical section.


How would this work for Windows or FreeBSD?

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