Re: [PATCH v5 06/10] Drivers/hv: Export some functions for use by root partition module

[Roman Kisel <romank@xxxxxxxxxxxxxxxxxxx>]

On 2/26/2025 3:08 PM, Nuno Das Neves wrote:
> get_hypervisor_version, hv_call_deposit_pages, hv_call_create_vp,
> hv_call_deposit_pages, and hv_call_create_vp are all needed in module
> with CONFIG_MSHV_ROOT=m.
>
> Signed-off-by: Nuno Das Neves <nunodasneves@xxxxxxxxxxxxxxxxxxx>
> ---
>   arch/arm64/hyperv/mshyperv.c   | 1 +
>   arch/x86/kernel/cpu/mshyperv.c | 1 +
>   drivers/hv/hv_common.c         | 1 +
>   drivers/hv/hv_proc.c           | 3 ++-
>   4 files changed, 5 insertions(+), 1 deletion(-)
>
> diff --git a/arch/arm64/hyperv/mshyperv.c b/arch/arm64/hyperv/mshyperv.c
> index 2265ea5ce5ad..4e27cc29c79e 100644
> --- a/arch/arm64/hyperv/mshyperv.c
> +++ b/arch/arm64/hyperv/mshyperv.c
> @@ -26,6 +26,7 @@ int hv_get_hypervisor_version(union hv_hypervisor_version_info *info)
>   
>   	return 0;
>   }
> +EXPORT_SYMBOL_GPL(hv_get_hypervisor_version);
>   
>   static int __init hyperv_init(void)
>   {
> diff --git a/arch/x86/kernel/cpu/mshyperv.c b/arch/x86/kernel/cpu/mshyperv.c
> index 2c29dfd6de19..0116d0e96ef9 100644
> --- a/arch/x86/kernel/cpu/mshyperv.c
> +++ b/arch/x86/kernel/cpu/mshyperv.c
> @@ -420,6 +420,7 @@ int hv_get_hypervisor_version(union hv_hypervisor_version_info *info)
>   
>   	return 0;
>   }
> +EXPORT_SYMBOL_GPL(hv_get_hypervisor_version);
>   
>   static void __init ms_hyperv_init_platform(void)
>   {
> diff --git a/drivers/hv/hv_common.c b/drivers/hv/hv_common.c
> index ce20818688fe..252fd66ad4db 100644
> --- a/drivers/hv/hv_common.c
> +++ b/drivers/hv/hv_common.c
> @@ -717,6 +717,7 @@ int hv_result_to_errno(u64 status)
>   	}
>   	return -EIO;
>   }
> +EXPORT_SYMBOL_GPL(hv_result_to_errno);
>   
>   void hv_identify_partition_type(void)
>   {
> diff --git a/drivers/hv/hv_proc.c b/drivers/hv/hv_proc.c
> index 8fc30f509fa7..20c8cee81e2b 100644
> --- a/drivers/hv/hv_proc.c
> +++ b/drivers/hv/hv_proc.c
> @@ -108,6 +108,7 @@ int hv_call_deposit_pages(int node, u64 partition_id, u32 num_pages)
>   	kfree(counts);
>   	return ret;
>   }
> +EXPORT_SYMBOL_GPL(hv_call_deposit_pages);
>   
>   int hv_call_add_logical_proc(int node, u32 lp_index, u32 apic_id)
>   {
> @@ -194,4 +195,4 @@ int hv_call_create_vp(int node, u64 partition_id, u32 vp_index, u32 flags)
>   
>   	return ret;
>   }
> -
> +EXPORT_SYMBOL_GPL(hv_call_create_vp);

Reviewed-by: Roman Kisel <romank@xxxxxxxxxxxxxxxxxxx>

--
Thank you,
Roman