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Re: [Qemu-discuss] [ovirt-devel] ovirt and AMD virtualization bug

From: Nir Soffer
Subject: Re: [Qemu-discuss] [ovirt-devel] ovirt and AMD virtualization bug
Date: Sat, 9 Mar 2019 02:48:12 +0200

On Sat, Mar 9, 2019 at 1:24 AM Hetz Ben Hamo <address@hidden> wrote:

> Hi,
> I've done some research on a bug which I found on the AMD Zen/Zen+ based
> CPU's. Apparently, when using nested virtualization, the CPU doesn't expose
> the "monitor" CPU flag.
> While other virtualization solutions (Xen, ESXi, Hyper-V) don't care about
> this issue and let you run with nested without any problem, oVirt doesn't
> let you launch or create any VM and it complains that this "monitor" CPU
> flag is missing.
> Since QEMU/KVM cannot do anything about it, I was wondering if the ovirt
> dev team could ignore this flag please.

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