Re: [Qemu-devel] [PULL 22/25] target/i386: kvm: Add nested migration blocker only when kernel lacks required capabilities

[Paolo Bonzini]

On 21/06/19 17:07, Liran Alon wrote:
>> So, overall I prefer not to block migration.
> I’m not sure I agree.
> It is quite likely that vCPU is currently in guest-mode while you are 
> migrating…
> A good hypervisor tries to maximise CPU time to be in guest-mode rather than 
> host-mode. :)

True, but it is even more likely that they are not using KVM at all and
just happen to have the CPUID flag set. :)

Paolo