Re: [PATCH v3 2/5] drivers/hv: Move VMBus hypercall codes into Hyper-V UAPI header

[Paolo Bonzini <pbonzini@redhat.com>]

On 11/02/2016 14:44, Andrey Smetanin wrote:
> VMBus hypercall codes inside Hyper-V UAPI header will
> be used by QEMU to implement VMBus host devices support.
> 
> Signed-off-by: Andrey Smetanin <asmetanin@virtuozzo.com>
> Acked-by: K. Y. Srinivasan <kys@microsoft.com>
> Reviewed-by: Roman Kagan <rkagan@virtuozzo.com>
> CC: Gleb Natapov <gleb@kernel.org>
> CC: Paolo Bonzini <pbonzini@redhat.com>
> CC: Joerg Roedel <joro@8bytes.org>
> CC: "K. Y. Srinivasan" <kys@microsoft.com>
> CC: Haiyang Zhang <haiyangz@microsoft.com>
> CC: Roman Kagan <rkagan@virtuozzo.com>
> CC: Denis V. Lunev <den@openvz.org>
> CC: qemu-devel@nongnu.org
> ---
>  arch/x86/include/uapi/asm/hyperv.h | 2 ++
>  drivers/hv/connection.c            | 2 +-
>  drivers/hv/hv.c                    | 2 +-
>  drivers/hv/hyperv_vmbus.h          | 6 ------
>  4 files changed, 4 insertions(+), 8 deletions(-)
> 
> diff --git a/arch/x86/include/uapi/asm/hyperv.h b/arch/x86/include/uapi/asm/hyperv.h
> index 0c50fab..bc1c8a9 100644
> --- a/arch/x86/include/uapi/asm/hyperv.h
> +++ b/arch/x86/include/uapi/asm/hyperv.h
> @@ -227,6 +227,8 @@
>  
>  /* Declare the various hypercall operations. */
>  #define HV_X64_HCALL_NOTIFY_LONG_SPIN_WAIT		0x0008
> +#define HV_X64_HCALL_POST_MESSAGE			0x005c
> +#define HV_X64_HCALL_SIGNAL_EVENT			0x005d
>  
>  #define HV_X64_MSR_APIC_ASSIST_PAGE_ENABLE		0x00000001
>  #define HV_X64_MSR_APIC_ASSIST_PAGE_ADDRESS_SHIFT	12
> diff --git a/drivers/hv/connection.c b/drivers/hv/connection.c
> index fa86b2c..84700c6 100644
> --- a/drivers/hv/connection.c
> +++ b/drivers/hv/connection.c
> @@ -485,5 +485,5 @@ void vmbus_set_event(struct vmbus_channel *channel)
>  			(child_relid >> 5));
>  	}
>  
> -	hv_do_hypercall(HVCALL_SIGNAL_EVENT, channel->sig_event, NULL);
> +	hv_do_hypercall(HV_X64_HCALL_SIGNAL_EVENT, channel->sig_event, NULL);

What tree does this apply to?

Paolo

>  }
> diff --git a/drivers/hv/hv.c b/drivers/hv/hv.c
> index ccb335f..48388dc 100644
> --- a/drivers/hv/hv.c
> +++ b/drivers/hv/hv.c
> @@ -337,7 +337,7 @@ int hv_post_message(union hv_connection_id connection_id,
>  	aligned_msg->payload_size = payload_size;
>  	memcpy((void *)aligned_msg->payload, payload, payload_size);
>  
> -	status = hv_do_hypercall(HVCALL_POST_MESSAGE, aligned_msg, NULL);
> +	status = hv_do_hypercall(HV_X64_HCALL_POST_MESSAGE, aligned_msg, NULL);
>  
>  	put_cpu();
>  	return status & 0xFFFF;
> diff --git a/drivers/hv/hyperv_vmbus.h b/drivers/hv/hyperv_vmbus.h
> index b9ea7f5..1dabaa4 100644
> --- a/drivers/hv/hyperv_vmbus.h
> +++ b/drivers/hv/hyperv_vmbus.h
> @@ -256,12 +256,6 @@ struct hv_monitor_page {
>  	u8 rsvdz4[1984];
>  };
>  
> -/* Declare the various hypercall operations. */
> -enum hv_call_code {
> -	HVCALL_POST_MESSAGE	= 0x005c,
> -	HVCALL_SIGNAL_EVENT	= 0x005d,
> -};
> -
>  /* Definition of the hv_post_message hypercall input structure. */
>  struct hv_input_post_message {
>  	union hv_connection_id connectionid;
>