[PATCH] KVM: arm64: Allow KVM to be disabled from the command line

David Brazdil dbrazdil at google.com
Tue Sep 28 07:58:08 PDT 2021


Hey Marc,
that all makes sense:

Reviewed-by: David Brazdil <dbrazdil at google.com>

> @@ -2137,8 +2142,15 @@ static int __init early_kvm_mode_cfg(char *arg)
>  		return 0;
>  	}
>  
> -	if (strcmp(arg, "nvhe") == 0 && !WARN_ON(is_kernel_in_hyp_mode()))
> +	if (strcmp(arg, "nvhe") == 0 && !WARN_ON(is_kernel_in_hyp_mode())) {
> +		kvm_mode = KVM_MODE_DEFAULT;
>  		return 0;
> +	}
> +
> +	if (strcmp(arg, "none") == 0 && !WARN_ON(is_kernel_in_hyp_mode())) {
nit: I noticed we check is_kernel_in_hyp_mode here for nvhe/none but for
protected it is checked in is_kvm_protected_mode. May be worth unifying?




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