Re: [PATCH Part2 RFC v4 22/40] KVM: SVM: Add KVM_SNP_INIT command

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On Wed, Jul 07, 2021, Brijesh Singh wrote:
> diff --git a/include/uapi/linux/kvm.h b/include/uapi/linux/kvm.h
> index 3fd9a7e9d90c..989a64aa1ae5 100644
> --- a/include/uapi/linux/kvm.h
> +++ b/include/uapi/linux/kvm.h
> @@ -1678,6 +1678,9 @@ enum sev_cmd_id {
>  	/* Guest Migration Extension */
>  	KVM_SEV_SEND_CANCEL,
>  
> +	/* SNP specific commands */
> +	KVM_SEV_SNP_INIT = 256,

Is there any meaning behind '256'?  If not, why skip a big chunk?  I wouldn't be
concerned if it weren't for KVM_SEV_NR_MAX, whose existence arguably implies that
0-KVM_SEV_NR_MAX-1 are all valid SEV commands.

> +
>  	KVM_SEV_NR_MAX,
>  };



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