Re: About two-dimensional page translation (e.g., Intel EPT) and shadow page table in Linux QEMU/KVM

[Maxim Levitsky]

On Sun, 2021-07-11 at 15:13 -0500, harry harry wrote:
> Hi all,
> 
> I hope you are very well! May I know whether it is possible to enable
> two-dimensional page translation (e.g., Intel EPT) mechanisms and
> shadow page table mechanisms in Linux QEMU/KVM at the same time on a
> physical server? For example, if the physical server has 80 cores, is
> it possible to let 40 cores use Intel EPT mechanisms for page
> translation and the other 40 cores use shadow page table mechanisms?
> Thanks!

Nope sadly. EPT/NPT is enabled by a module param.

Best regards,
        Maxim Levitsky

> 
> Best,
> Harry
>