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@@ -20,9 +20,27 @@
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* Hank Janssen <hjanssen@microsoft.com>
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*
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*/
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+#ifndef __HV_API_H
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+#define __HV_API_H
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-#ifndef __HVSYNICAPI_H
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-#define __HVSYNICAPI_H
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+/*
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+ * The below CPUID leaves are present if VersionAndFeatures.HypervisorPresent
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+ * is set by CPUID(HvCpuIdFunctionVersionAndFeatures).
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+ */
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+enum hv_cpuid_function {
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+ HvCpuIdFunctionVersionAndFeatures = 0x00000001,
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+ HvCpuIdFunctionHvVendorAndMaxFunction = 0x40000000,
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+ HvCpuIdFunctionHvInterface = 0x40000001,
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+
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+ /*
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+ * The remaining functions depend on the value of
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+ * HvCpuIdFunctionInterface
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+ */
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+ HvCpuIdFunctionMsHvVersion = 0x40000002,
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+ HvCpuIdFunctionMsHvFeatures = 0x40000003,
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+ HvCpuIdFunctionMsHvEnlightenmentInformation = 0x40000004,
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+ HvCpuIdFunctionMsHvImplementationLimits = 0x40000005,
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+};
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/* Define the virtual APIC registers */
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#define HV_X64_MSR_EOI (0x40000070)
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@@ -327,4 +345,76 @@ struct hv_monitor_page {
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u8 RsvdZ4[1984];
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};
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+/* Declare the various hypercall operations. */
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+enum hv_call_code {
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+ HvCallPostMessage = 0x005c,
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+ HvCallSignalEvent = 0x005d,
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+};
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+
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+/* Definition of the HvPostMessage hypercall input structure. */
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+struct hv_input_post_message {
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+ union hv_connection_id ConnectionId;
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+ u32 Reserved;
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+ enum hv_message_type MessageType;
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+ u32 PayloadSize;
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+ u64 Payload[HV_MESSAGE_PAYLOAD_QWORD_COUNT];
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+};
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+
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+/* Definition of the HvSignalEvent hypercall input structure. */
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+struct hv_input_signal_event {
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+ union hv_connection_id ConnectionId;
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+ u16 FlagNumber;
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+ u16 RsvdZ;
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+};
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+
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+/*
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+ * Versioning definitions used for guests reporting themselves to the
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+ * hypervisor, and visa versa.
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+ */
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+
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+/* Version info reported by guest OS's */
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+enum hv_guest_os_vendor {
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+ HvGuestOsVendorMicrosoft = 0x0001
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+};
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+
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+enum hv_guest_os_microsoft_ids {
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+ HvGuestOsMicrosoftUndefined = 0x00,
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+ HvGuestOsMicrosoftMSDOS = 0x01,
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+ HvGuestOsMicrosoftWindows3x = 0x02,
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+ HvGuestOsMicrosoftWindows9x = 0x03,
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+ HvGuestOsMicrosoftWindowsNT = 0x04,
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+ HvGuestOsMicrosoftWindowsCE = 0x05
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+};
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+
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+/*
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+ * Declare the MSR used to identify the guest OS.
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+ */
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+#define HV_X64_MSR_GUEST_OS_ID 0x40000000
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+
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+union hv_x64_msr_guest_os_id_contents {
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+ u64 AsUINT64;
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+ struct {
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+ u64 BuildNumber:16;
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+ u64 ServiceVersion:8; /* Service Pack, etc. */
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+ u64 MinorVersion:8;
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+ u64 MajorVersion:8;
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+ u64 OsId:8; /* enum hv_guest_os_microsoft_ids (if Vendor=MS) */
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+ u64 VendorId:16; /* enum hv_guest_os_vendor */
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+ };
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+};
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+
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+/*
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+ * Declare the MSR used to setup pages used to communicate with the hypervisor.
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+ */
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+#define HV_X64_MSR_HYPERCALL 0x40000001
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+
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+union hv_x64_msr_hypercall_contents {
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+ u64 AsUINT64;
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+ struct {
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+ u64 Enable:1;
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+ u64 Reserved:11;
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+ u64 GuestPhysicalAddress:52;
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+ };
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+};
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+
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#endif
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