Re: [PATCH Part2 v5 00/45] Add AMD Secure Nested Paging (SEV-SNP) Hypervisor Support

Peter Gonda
2021-11-16T18:39:43Z

On Tue, Nov 16, 2021 at 11:26 AM Sean Christopherson <seanjc@google.com> wrote:
>
> On Tue, Nov 16, 2021, Joerg Roedel wrote:
> > But as Marc already pointed out, the kernel needs a plan B when an RMP
> > happens anyway due to some bug.
>
> I don't see why unexpected RMP #PF is a special snowflake that needs a different
> plan than literally every other type of unexpected #PF in the kernel.

When I started this thread I was not trying to say we *need* to do
something different for RMP faults, but that we *could* improve host
reliability by doing something. Since it is possible to special case
an RMP fault and prevent a panic I thought it was with discussing.