Re: [PATCH v8 4/7] KVM: VMX: Load CET states on vmentry/vmexit

[Sean Christopherson]

On Thu, Dec 12, 2019 at 09:04:24AM +0800, Yang Weijiang wrote:
> On Wed, Dec 11, 2019 at 08:35:10AM -0800, Sean Christopherson wrote:
> > Have you tested SMM at all?  The interaction between CR0 and CR4 may be
> > problematic for em_rsm() and/or rsm_enter_protected_mode().
> >
> Not yet, what's an easy way to test code in SMM mode?

IIRC, SeaBIOS does SMM stuff by default.