[Qemu-devel] [PATCH v2 3/9] drivers/hv: Move struct hv_message into UAPI Hyper-V x86 header

[Andrey Smetanin <asmetanin@virtuozzo.com>]

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>
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: "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
---
 arch/x86/include/uapi/asm/hyperv.h | 74 ++++++++++++++++++++++++++++++++++++++
 drivers/hv/hyperv_vmbus.h          | 73 -------------------------------------
 2 files changed, 74 insertions(+), 73 deletions(-)

diff --git a/arch/x86/include/uapi/asm/hyperv.h b/arch/x86/include/uapi/asm/hyperv.h
index 07981f0..76e503d 100644
--- a/arch/x86/include/uapi/asm/hyperv.h
+++ b/arch/x86/include/uapi/asm/hyperv.h
@@ -271,4 +271,78 @@ typedef struct _HV_REFERENCE_TSC_PAGE {
 
 #define HV_SYNIC_STIMER_COUNT		(4)
 
+/* Define synthetic interrupt controller message constants. */
+#define HV_MESSAGE_SIZE			(256)
+#define HV_MESSAGE_PAYLOAD_BYTE_COUNT	(240)
+#define HV_MESSAGE_PAYLOAD_QWORD_COUNT	(30)
+
+/* Define hypervisor message types. */
+#define HVMSG_NONE			0x00000000
+
+/* Memory access messages. */
+#define HVMSG_UNMAPPED_GPA		0x80000000
+#define HVMSG_GPA_INTERCEPT		0x80000001
+
+/* Timer notification messages. */
+#define HVMSG_TIMER_EXPIRED		0x80000010
+
+/* Error messages. */
+#define HVMSG_INVALID_VP_REGISTER_VALUE	0x80000020
+#define HVMSG_UNRECOVERABLE_EXCEPTION	0x80000021
+#define HVMSG_UNSUPPORTED_FEATURE	0x80000022
+
+/* Trace buffer complete messages. */
+#define HVMSG_EVENTLOG_BUFFERCOMPLETE	0x80000040
+
+/* Platform-specific processor intercept messages. */
+#define HVMSG_X64_IOPORT_INTERCEPT	0x80010000
+#define HVMSG_X64_MSR_INTERCEPT		0x80010001
+#define HVMSG_X64_CPUID_INTERCEPT	0x80010002
+#define HVMSG_X64_EXCEPTION_INTERCEPT	0x80010003
+#define HVMSG_X64_APIC_EOI		0x80010004
+#define HVMSG_X64_LEGACY_FP_ERROR	0x80010005
+
+/* Define synthetic interrupt controller message flags. */
+union hv_message_flags {
+	__u8 asu8;
+	struct {
+		__u8 msg_pending:1;
+		__u8 reserved:7;
+	};
+};
+
+/* Define port identifier type. */
+union hv_port_id {
+	__u32 asu32;
+	struct {
+		__u32 id:24;
+		__u32 reserved:8;
+	} u;
+};
+
+/* Define synthetic interrupt controller message header. */
+struct hv_message_header {
+	__u32 message_type;
+	__u8 payload_size;
+	union hv_message_flags message_flags;
+	__u8 reserved[2];
+	union {
+		__u64 sender;
+		union hv_port_id port;
+	};
+};
+
+/* Define synthetic interrupt controller message format. */
+struct hv_message {
+	struct hv_message_header header;
+	union {
+		__u64 payload[HV_MESSAGE_PAYLOAD_QWORD_COUNT];
+	} u;
+};
+
+/* Define the synthetic interrupt message page layout. */
+struct hv_message_page {
+	struct hv_message sint_message[HV_SYNIC_SINT_COUNT];
+};
+
 #endif
diff --git a/drivers/hv/hyperv_vmbus.h b/drivers/hv/hyperv_vmbus.h
index f214e37..3f3756b 100644
--- a/drivers/hv/hyperv_vmbus.h
+++ b/drivers/hv/hyperv_vmbus.h
@@ -63,10 +63,6 @@ enum hv_cpuid_function {
 /* Define version of the synthetic interrupt controller. */
 #define HV_SYNIC_VERSION		(1)
 
-/* Define synthetic interrupt controller message constants. */
-#define HV_MESSAGE_SIZE			(256)
-#define HV_MESSAGE_PAYLOAD_BYTE_COUNT	(240)
-#define HV_MESSAGE_PAYLOAD_QWORD_COUNT	(30)
 #define HV_ANY_VP			(0xFFFFFFFF)
 
 /* Define synthetic interrupt controller flag constants. */
@@ -74,44 +70,9 @@ enum hv_cpuid_function {
 #define HV_EVENT_FLAGS_BYTE_COUNT	(256)
 #define HV_EVENT_FLAGS_DWORD_COUNT	(256 / sizeof(u32))
 
-/* Define hypervisor message types. */
-#define HVMSG_NONE			0x00000000
-
-/* Memory access messages. */
-#define HVMSG_UNMAPPED_GPA		0x80000000
-#define HVMSG_GPA_INTERCEPT		0x80000001
-
-/* Timer notification messages. */
-#define HVMSG_TIMER_EXPIRED		0x80000010
-
-/* Error messages. */
-#define HVMSG_INVALID_VP_REGISTER_VALUE	0x80000020
-#define HVMSG_UNRECOVERABLE_EXCEPTION	0x80000021
-#define HVMSG_UNSUPPORTED_FEATURE	0x80000022
-
-/* Trace buffer complete messages. */
-#define HVMSG_EVENTLOG_BUFFERCOMPLETE	0x80000040
-
-/* Platform-specific processor intercept messages. */
-#define HVMSG_X64_IOPORT_INTERCEPT	0x80010000
-#define HVMSG_X64_MSR_INTERCEPT		0x80010001
-#define HVMSG_X64_CPUID_INTERCEPT	0x80010002
-#define HVMSG_X64_EXCEPTION_INTERCEPT	0x80010003
-#define HVMSG_X64_APIC_EOI		0x80010004
-#define HVMSG_X64_LEGACY_FP_ERROR	0x80010005
-
 /* Define invalid partition identifier. */
 #define HV_PARTITION_ID_INVALID		((u64)0x0)
 
-/* Define port identifier type. */
-union hv_port_id {
-	u32 asu32;
-	struct {
-		u32 id:24;
-		u32 reserved:8;
-	} u ;
-};
-
 /* Define port type. */
 enum hv_port_type {
 	HVPORT_MSG	= 1,
@@ -159,27 +120,6 @@ struct hv_connection_info {
 	};
 };
 
-/* Define synthetic interrupt controller message flags. */
-union hv_message_flags {
-	u8 asu8;
-	struct {
-		u8 msg_pending:1;
-		u8 reserved:7;
-	};
-};
-
-/* Define synthetic interrupt controller message header. */
-struct hv_message_header {
-	u32 message_type;
-	u8 payload_size;
-	union hv_message_flags message_flags;
-	u8 reserved[2];
-	union {
-		u64 sender;
-		union hv_port_id port;
-	};
-};
-
 /*
  * Timer configuration register.
  */
@@ -205,22 +145,9 @@ struct hv_timer_message_payload {
 	u64 delivery_time;	/* When the message was delivered */
 };
 
-/* Define synthetic interrupt controller message format. */
-struct hv_message {
-	struct hv_message_header header;
-	union {
-		u64 payload[HV_MESSAGE_PAYLOAD_QWORD_COUNT];
-	} u ;
-};
-
 /* Define the number of message buffers associated with each port. */
 #define HV_PORT_MESSAGE_BUFFER_COUNT	(16)
 
-/* Define the synthetic interrupt message page layout. */
-struct hv_message_page {
-	struct hv_message sint_message[HV_SYNIC_SINT_COUNT];
-};
-
 /* Define the synthetic interrupt controller event flags format. */
 union hv_synic_event_flags {
 	u8 flags8[HV_EVENT_FLAGS_BYTE_COUNT];
-- 
2.4.3