drivers/hv: Move struct hv_timer_message_payload into UAPI Hyper-V x86 header

This struct is required for Hyper-V SynIC timers implementation inside KVM
and for upcoming Hyper-V VMBus support by userspace(QEMU). So place it into
Hyper-V UAPI header.

Signed-off-by: Andrey Smetanin <asmetanin@virtuozzo.com>
CC: Gleb Natapov <gleb@kernel.org>
CC: Paolo Bonzini <pbonzini@redhat.com>
CC: "K. Y. Srinivasan" <kys@microsoft.com>
CC: Haiyang Zhang <haiyangz@microsoft.com>
CC: Vitaly Kuznetsov <vkuznets@redhat.com>
CC: Roman Kagan <rkagan@virtuozzo.com>
CC: Denis V. Lunev <den@openvz.org>
CC: qemu-devel@nongnu.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

1 files changed, 8 insertions, 0 deletions

diff --git a/arch/x86/include/uapi/asm/hyperv.h b/arch/x86/include/uapi/asm/hyperv.h
index a41cdee88adb..2a5629eac0b1 100644
--- a/arch/x86/include/uapi/asm/hyperv.h
+++ b/arch/x86/include/uapi/asm/hyperv.h
@@ -347,4 +347,12 @@ struct hv_message_page {
         struct hv_message sint_message[HV_SYNIC_SINT_COUNT];
 };
 
+/* Define timer message payload structure. */
+struct hv_timer_message_payload {
+        __u32 timer_index;
+        __u32 reserved;
+        __u64 expiration_time;  /* When the timer expired */
+        __u64 delivery_time;    /* When the message was delivered */
+};
+
 #endif