linux-kernel - Re: [PATCH V3 01/13] x86/HV: Initialize GHCB page in Isolation VM

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Date:   Tue, 10 Aug 2021 10:56:09 +0000
From:   Wei Liu <wei.liu@...nel.org>
To:     Tianyu Lan <ltykernel@...il.com>
Cc:     kys@...rosoft.com, haiyangz@...rosoft.com, sthemmin@...rosoft.com,
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Subject: Re: [PATCH V3 01/13] x86/HV: Initialize GHCB page in Isolation VM

On Mon, Aug 09, 2021 at 01:56:05PM -0400, Tianyu Lan wrote:
[...]
>  static int hv_cpu_init(unsigned int cpu)
>  {
>  	union hv_vp_assist_msr_contents msr = { 0 };
> @@ -85,6 +111,8 @@ static int hv_cpu_init(unsigned int cpu)
>  		}
>  	}
>  
> +	hyperv_init_ghcb();
> +

Why is the return value not checked here? If that's not required, can
you leave a comment?

Wei.