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SubjectRe: KVM PV (was: Re: [PATCH v2 2/2] x86/lguest: remove lguest support)
On Sat, Sep 30, 2017 at 12:39 AM, Paolo Bonzini <> wrote:
> On 29/09/2017 17:47, Lai Jiangshan wrote:
>> Hello, all
>> An interesting (at least to me) thinking came up to me when I found
>> that the lguest was removed. But I don't have enough knowledge
>> to find out the answer nor energy to implement it in some time.
>> Is it possible to implement kvm-pv which allows kvm to run on
>> the boxes without hardware virtualization support, so that
>> qemu/kvm can be used on clouds such as aws, azure?
> No, please don't. :) Even Xen is moving from PV to PVH (paravirtualized
> hardware with event channels, grant tables and the like, but still using
> hardware extensions for MMU).
> Rather, cloud providers should help getting nested virtualization ready
> for production use. At least for KVM it's not that far.

Although I'm not business man, I don't think the top cloud provider[s]
would allow nested virtualization, however mature nested virtualization
is. Even xen-pv is unable to be nested in the aws and azure.



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