Re: [RFC KVM 24/27] kvm/isolation: KVM page fault handler

[Alexandre Chartre]

On 5/14/19 9:21 AM, Peter Zijlstra wrote:
> On Mon, May 13, 2019 at 07:02:30PM -0700, Andy Lutomirski wrote:
>
> > This sounds like a great use case for static_call().  PeterZ, do you
> > suppose we could wire up static_call() with the module infrastructure
> > to make it easy to do "static_call to such-and-such GPL module symbol
> > if that symbol is in a loaded module, else nop"?
>
> You're basically asking it to do dynamic linking. And I suppose that is
> technically possible.
>
> However, I'm really starting to think kvm (or at least these parts of it
> that want to play these games) had better not be a module anymore.

Maybe we can use an atomic notifier (e.g. page_fault_notifier)?

alex.