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From: | Paolo Bonzini |
Subject: | Re: [Qemu-devel] [PULL 22/25] target/i386: kvm: Add nested migration blocker only when kernel lacks required capabilities |
Date: | Fri, 21 Jun 2019 19:27:01 +0200 |
User-agent: | Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.6.1 |
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
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