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

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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
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Andrey Smetanin
2015-11-30 19:22:15 +03:00
committed by Paolo Bonzini
parent 4f39bcfd1c
commit 5b423efe11
2 changed files with 76 additions and 75 deletions
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76
arch/x86/include/uapi/asm/hyperv.h
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@@ -271,4 +271,80 @@ 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