[PVE-User] Nested Virtualization and Live Migration

[Martin Holub]

On Tue, 2019-09-10 at 10:05 +0200, Dominik Csapak wrote:
>  > https://www.linux-kvm.org/page/Nested_Guests
> 
> the page is sadly outdated
> 
> there are efforts in kernel and qemu to enable real working live 
> migration of nested machines.
> 
> currently qemu decided to disable migration altogether when nesting
> is 
> enabled and the guest has the vmx/svm flag.[0]
> 
> you can try with a cpu model that does not include that flag, but
> you lose nesting for that machine ofc.
> 
> kind regards
> Dominik
> 
> 0: 
> 
https://github.com/qemu/qemu/commit/d98f26073bebddcd3da0ba1b86c3a34e840c0fb8
> 
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Hi Dominik,

I see, thanks for the Link. I will then disable the nested Flag again
for now. Maybe someone wants to add that to the Wiki Page at [1]?

Best 
Martin

[1] https://pve.proxmox.com/wiki/Nested_Virtualization