[RFC PATCH v2.1] x86/sev-es: Handle NMI State

[Joerg Roedel]

On Thu, Mar 19, 2020 at 08:35:59AM -0700, Andy Lutomirski wrote:
> 1. Just put the NMI unmask in do_nmi().  The kernel *already* knows
> how to handle running do_nmi() with NMIs unmasked.  This is much, much
> simpler than your code.

Okay, attached is the updated patch which implements this approach. I
tested it in an SEV-ES guest with 'perf top' running for a little more
than 30 minutes and all looked good. I also removed the dead code from
the patch.