Re: [PATCH 2/5] KVM: SVM: Downgrade BUG_ON() to WARN_ON() in svm_inject_irq()

[Maxim Levitsky]

On Thu, 2022-03-10 at 22:38 +0100, Maciej S. Szmigiero wrote:
> From: "Maciej S. Szmigiero" <maciej.szmigiero@xxxxxxxxxx>
> 
> There is no need to bring down the whole host just because there might be
> some issue with respect to guest GIF handling in KVM.
> 
> Signed-off-by: Maciej S. Szmigiero <maciej.szmigiero@xxxxxxxxxx>
> ---
>  arch/x86/kvm/svm/svm.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/arch/x86/kvm/svm/svm.c b/arch/x86/kvm/svm/svm.c
> index b069493ad5c7..1e5d904aeec3 100644
> --- a/arch/x86/kvm/svm/svm.c
> +++ b/arch/x86/kvm/svm/svm.c
> @@ -3322,7 +3322,7 @@ static void svm_inject_irq(struct kvm_vcpu *vcpu)
>  {
>  	struct vcpu_svm *svm = to_svm(vcpu);
>  
> -	BUG_ON(!(gif_set(svm)));
> +	WARN_ON(!gif_set(svm));
>  
>  	trace_kvm_inj_virq(vcpu->arch.interrupt.nr);
>  	++vcpu->stat.irq_injections;
> 
Reviewed-by: Maxim Levitsky <mlevitsk@xxxxxxxxxx>

Best regards,
	Maxim Levitsky