Re: [PATCH 00/23] KAISER: unmap most of the kernel from userspace page tables

[Thomas Gleixner]

On Wed, 1 Nov 2017, Ingo Molnar wrote:
> Beyond the inevitable cavalcade of (solvable) problems that will pop up during 
> review, one major item I'd like to see addressed is runtime configurability: it 
> should be possible to switch between a CR3-flushing and a regular syscall and page 
> table model on the admin level, without restarting the kernel and apps. Distros 
> really, really don't want to double the number of kernel variants they have.

And this removes the !PARAVIRT dependency as well because when the kernel
detects xen_pv() then it simply disables kaiser and all works.

Thanks,

	tglx