Re: [RFC KVM 19/27] kvm/isolation: initialize the KVM page table with core mappings

[Sean Christopherson]

On Mon, May 13, 2019 at 08:50:19AM -0700, Dave Hansen wrote:
> I seem to remember that the KVM VMENTRY/VMEXIT context is very special.
> Interrupts (and even NMIs?) are disabled.  Would it be feasible to do
> the switching in there so that we never even *get* interrupts in the KVM
> context?

NMIs are enabled on VMX's VM-Exit.  On SVM, NMIs are blocked on exit until
STGI is executed.