Re: [PATCH 03/12] x86/hyperv: Reorder code in prep for subsequent patch

[Tianyu Lan <ltykernel@gmail.com>]

On 10/21/2022 1:57 AM, Michael Kelley wrote:
> Reorder some code as preparation for a subsequent patch.  No
> functional change.
> 
> Signed-off-by: Michael Kelley <mikelley@microsoft.com>

Reviewed-by: Tianyu Lan <Tianyu.Lan@microsoft.com>
> ---
>   arch/x86/hyperv/ivm.c | 68 +++++++++++++++++++++++++--------------------------
>   1 file changed, 34 insertions(+), 34 deletions(-)
> 
> diff --git a/arch/x86/hyperv/ivm.c b/arch/x86/hyperv/ivm.c
> index 1dbcbd9..f33c67e 100644
> --- a/arch/x86/hyperv/ivm.c
> +++ b/arch/x86/hyperv/ivm.c
> @@ -235,40 +235,6 @@ void hv_ghcb_msr_read(u64 msr, u64 *value)
>   EXPORT_SYMBOL_GPL(hv_ghcb_msr_read);
>   #endif
>   
> -enum hv_isolation_type hv_get_isolation_type(void)
> -{
> -	if (!(ms_hyperv.priv_high & HV_ISOLATION))
> -		return HV_ISOLATION_TYPE_NONE;
> -	return FIELD_GET(HV_ISOLATION_TYPE, ms_hyperv.isolation_config_b);
> -}
> -EXPORT_SYMBOL_GPL(hv_get_isolation_type);
> -
> -/*
> - * hv_is_isolation_supported - Check system runs in the Hyper-V
> - * isolation VM.
> - */
> -bool hv_is_isolation_supported(void)
> -{
> -	if (!cpu_feature_enabled(X86_FEATURE_HYPERVISOR))
> -		return false;
> -
> -	if (!hypervisor_is_type(X86_HYPER_MS_HYPERV))
> -		return false;
> -
> -	return hv_get_isolation_type() != HV_ISOLATION_TYPE_NONE;
> -}
> -
> -DEFINE_STATIC_KEY_FALSE(isolation_type_snp);
> -
> -/*
> - * hv_isolation_type_snp - Check system runs in the AMD SEV-SNP based
> - * isolation VM.
> - */
> -bool hv_isolation_type_snp(void)
> -{
> -	return static_branch_unlikely(&isolation_type_snp);
> -}
> -
>   /*
>    * hv_mark_gpa_visibility - Set pages visible to host via hvcall.
>    *
> @@ -387,3 +353,37 @@ void hv_unmap_memory(void *addr)
>   {
>   	vunmap(addr);
>   }
> +
> +enum hv_isolation_type hv_get_isolation_type(void)
> +{
> +	if (!(ms_hyperv.priv_high & HV_ISOLATION))
> +		return HV_ISOLATION_TYPE_NONE;
> +	return FIELD_GET(HV_ISOLATION_TYPE, ms_hyperv.isolation_config_b);
> +}
> +EXPORT_SYMBOL_GPL(hv_get_isolation_type);
> +
> +/*
> + * hv_is_isolation_supported - Check system runs in the Hyper-V
> + * isolation VM.
> + */
> +bool hv_is_isolation_supported(void)
> +{
> +	if (!cpu_feature_enabled(X86_FEATURE_HYPERVISOR))
> +		return false;
> +
> +	if (!hypervisor_is_type(X86_HYPER_MS_HYPERV))
> +		return false;
> +
> +	return hv_get_isolation_type() != HV_ISOLATION_TYPE_NONE;
> +}
> +
> +DEFINE_STATIC_KEY_FALSE(isolation_type_snp);
> +
> +/*
> + * hv_isolation_type_snp - Check system runs in the AMD SEV-SNP based
> + * isolation VM.
> + */
> +bool hv_isolation_type_snp(void)
> +{
> +	return static_branch_unlikely(&isolation_type_snp);
> +}