Re: [PATCH 2/5] KVM: svm: Disallow EFER.LMSLE on hardware that doesn't support it

[Borislav Petkov]

On Fri, Sep 16, 2022 at 10:33:29PM +0000, Sean Christopherson wrote:
> ...
> Either way, KVM appears to be carrying a half-baked "fix" for a buggy guest that's
> long since gone.  So like we did in commit 8805875aa473 ("Revert "KVM: nVMX: Do not
> expose MPX VMX controls when guest MPX disabled""), I think we should just revert
> the "fix".

If, as message 0/5 says, setting this bit so that SLE11 Xen 4.0 boots as
a nested hypervisor is the use case, then sure, unconditional NO_LSMLE
and we all should go on with our lives.

-- 
Regards/Gruss,
    Boris.

https://people.kernel.org/tglx/notes-about-netiquette