[Devel] [PATCH RHEL7 COMMIT] ms/drivers/hv: Move struct hv_message into UAPI Hyper-V x86 header

Konstantin Khorenko khorenko at virtuozzo.com
Tue Feb 16 01:50:19 PST 2016


The commit is pushed to "branch-rh7-3.10.0-327.4.5.vz7.11.x-ovz" and will appear at https://src.openvz.org/scm/ovz/vzkernel.git
after rh7-3.10.0-327.4.5.vz7.11.2
------>
commit c2162d5095220d6900d4a9962142e36174c5ec20
Author: Andrey Smetanin <asmetanin at virtuozzo.com>
Date:   Tue Feb 16 13:50:19 2016 +0400

    ms/drivers/hv: Move struct hv_message 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.
    
    ms commit - 5b423efe11e822e092e8c911a6bad17eadf718eb.
    
    Signed-off-by: Andrey Smetanin <asmetanin at virtuozzo.com>
    
    Acked-by: K. Y. Srinivasan <kys at microsoft.com>
    Reviewed-by: Roman Kagan <rkagan at virtuozzo.com>
    CC: Gleb Natapov <gleb at kernel.org>
    CC: Paolo Bonzini <pbonzini at redhat.com>
    CC: "K. Y. Srinivasan" <kys at microsoft.com>
    CC: Haiyang Zhang <haiyangz at microsoft.com>
    CC: Vitaly Kuznetsov <vkuznets at redhat.com>
    CC: Roman Kagan <rkagan at virtuozzo.com>
    CC: Denis V. Lunev <den at openvz.org>
    CC: qemu-devel at nongnu.org
    Signed-off-by: Paolo Bonzini <pbonzini at redhat.com>
---
 arch/x86/include/uapi/asm/hyperv.h | 76 ++++++++++++++++++++++++++++++++++++++
 drivers/hv/hyperv_vmbus.h          | 75 -------------------------------------
 2 files changed, 76 insertions(+), 75 deletions(-)

diff --git a/arch/x86/include/uapi/asm/hyperv.h b/arch/x86/include/uapi/asm/hyperv.h
index 5c1c077..c38a844 100644
--- a/arch/x86/include/uapi/asm/hyperv.h
+++ b/arch/x86/include/uapi/asm/hyperv.h
@@ -255,4 +255,80 @@ 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. */
+enum hv_message_type {
+	HVMSG_NONE			= 0x00000000,
+
+	/* Memory access messages. */
+	HVMSG_UNMAPPED_GPA		= 0x80000000,
+	HVMSG_GPA_INTERCEPT		= 0x80000001,
+
+	/* Timer notification messages. */
+	HVMSG_TIMER_EXPIRED			= 0x80000010,
+
+	/* Error messages. */
+	HVMSG_INVALID_VP_REGISTER_VALUE	= 0x80000020,
+	HVMSG_UNRECOVERABLE_EXCEPTION	= 0x80000021,
+	HVMSG_UNSUPPORTED_FEATURE		= 0x80000022,
+
+	/* Trace buffer complete messages. */
+	HVMSG_EVENTLOG_BUFFERCOMPLETE	= 0x80000040,
+
+	/* Platform-specific processor intercept messages. */
+	HVMSG_X64_IOPORT_INTERCEPT		= 0x80010000,
+	HVMSG_X64_MSR_INTERCEPT		= 0x80010001,
+	HVMSG_X64_CPUID_INTERCEPT		= 0x80010002,
+	HVMSG_X64_EXCEPTION_INTERCEPT	= 0x80010003,
+	HVMSG_X64_APIC_EOI			= 0x80010004,
+	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 c982af3..35a31b1 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. */
@@ -74,46 +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. */
-enum hv_message_type {
-	HVMSG_NONE			= 0x00000000,
-
-	/* Memory access messages. */
-	HVMSG_UNMAPPED_GPA		= 0x80000000,
-	HVMSG_GPA_INTERCEPT		= 0x80000001,
-
-	/* Timer notification messages. */
-	HVMSG_TIMER_EXPIRED			= 0x80000010,
-
-	/* Error messages. */
-	HVMSG_INVALID_VP_REGISTER_VALUE	= 0x80000020,
-	HVMSG_UNRECOVERABLE_EXCEPTION	= 0x80000021,
-	HVMSG_UNSUPPORTED_FEATURE		= 0x80000022,
-
-	/* Trace buffer complete messages. */
-	HVMSG_EVENTLOG_BUFFERCOMPLETE	= 0x80000040,
-
-	/* Platform-specific processor intercept messages. */
-	HVMSG_X64_IOPORT_INTERCEPT		= 0x80010000,
-	HVMSG_X64_MSR_INTERCEPT		= 0x80010001,
-	HVMSG_X64_CPUID_INTERCEPT		= 0x80010002,
-	HVMSG_X64_EXCEPTION_INTERCEPT	= 0x80010003,
-	HVMSG_X64_APIC_EOI			= 0x80010004,
-	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,
@@ -161,27 +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;
-	};
-};
-
 /* Define timer message payload structure. */
 struct hv_timer_message_payload {
 	u32 timer_index;
@@ -190,22 +128,9 @@ 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];


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