Re: [PATCH v4 5/7] KVM: SVM: Inject MCEs when Restricted Injection is active

[Melody Wang]

Hi Joerg,

On 4/28/26 3:50 AM, Joerg Rodel wrote:
> On Fri, Apr 24, 2026 at 05:42:09PM +0000, Melody Wang wrote:
> > diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
> > index 0a1b63c63d1a..420f1ec0dcfb 100644
> > --- a/arch/x86/kvm/x86.c
> > +++ b/arch/x86/kvm/x86.c
> > @@ -10789,6 +10789,12 @@ static int kvm_check_and_inject_events(struct kvm_vcpu *vcpu,
> >   			kvm_update_dr7(vcpu);
> >   		}
> >   
> > +		if (vcpu->arch.exception.vector == MC_VECTOR) {
> > +			r = static_call(kvm_x86_mce_allowed)(vcpu);
> > +			if (!r)
> > +				goto out_except;
>
> If this path is taken the warning at the bottom of the function will trigger. I
> think the target needs to be out: instead of out_except.
Yes, I think you are right. If MC is not allowed, I should simply return 
directly instead of noodling through the rest of the function.

Thanks,
Melody
> -Joerg

--
Thanks,
Melody