Re: [Qemu-devel] [QEMU PATCH v2 0/2]: KVM: i386: Add support for save and restore nested state

[Paolo Bonzini]

On 12/11/2018 17:50, Dr. David Alan Gilbert wrote:
>> Migration has always been busted historically, so those people using
>> nested VMX already won't be hurt by not having ability to live migrate
>> their VM, but could otherwise continue using them without being forced
>> to upgrade their kernel to fix a feature they're not even using.
> Yes, although I am a bit worried we might have a population of users
> that:
>    a) Have enabled nesting
>    b) Run VMs with vmx enabled
>    c) Don't normally actually run nested guests
>    d) Currently happily migrate.

Hmm, let's add a migration blocker for nested virtualization.

Paolo