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From: | Paolo Bonzini |
Subject: | Re: [Qemu-devel] [PATCH 05/23] hyperv: ensure VP index equal to QEMU cpu_index |
Date: | Wed, 14 Jun 2017 15:37:20 +0200 |
User-agent: | Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.1.0 |
On 14/06/2017 15:22, Eduardo Habkost wrote: >> Yes, definitely. At this point let's add a new "KVM_CAP_HYPERV_SYNIC2" >> capability and declare the old one broken, that will make things easier. > What do we need a capability for? Can't we just call > KVM_SET_MSRS using arch_id (== apic_id) and warn the user if it > doesn't work? As mentioned in the review of patch 16/23, we may want to break backwards compatibility (meaning we drop the old capability and introduce a new one) for other reasons. Paolo
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