arch/x86/include/uapi/asm/hyperv.h - kernel/msm-4.9 - Gitiles

 #ifndef _ASM_X86_HYPERV_H
 #define _ASM_X86_HYPERV_H

 #include <linux/types.h>

 /*
  * The below CPUID leaves are present if VersionAndFeatures.HypervisorPresent
  * is set by CPUID(HvCpuIdFunctionVersionAndFeatures).
  */
 #define HYPERV_CPUID_VENDOR_AND_MAX_FUNCTIONS	0x40000000
 #define HYPERV_CPUID_INTERFACE			0x40000001
 #define HYPERV_CPUID_VERSION			0x40000002
 #define HYPERV_CPUID_FEATURES			0x40000003
 #define HYPERV_CPUID_ENLIGHTMENT_INFO		0x40000004
 #define HYPERV_CPUID_IMPLEMENT_LIMITS		0x40000005

 #define HYPERV_HYPERVISOR_PRESENT_BIT		0x80000000
 #define HYPERV_CPUID_MIN			0x40000005
 #define HYPERV_CPUID_MAX			0x4000ffff

 /*
  * Feature identification. EAX indicates which features are available
  * to the partition based upon the current partition privileges.
  */

 /* VP Runtime (HV_X64_MSR_VP_RUNTIME) available */
 #define HV_X64_MSR_VP_RUNTIME_AVAILABLE		(1 << 0)
 /* Partition Reference Counter (HV_X64_MSR_TIME_REF_COUNT) available*/
 #define HV_X64_MSR_TIME_REF_COUNT_AVAILABLE	(1 << 1)

 /* A partition's reference time stamp counter (TSC) page */
 #define HV_X64_MSR_REFERENCE_TSC		0x40000021

 /*
  * There is a single feature flag that signifies the presence of the MSR
  * that can be used to retrieve both the local APIC Timer frequency as
  * well as the TSC frequency.
  */

 /* Local APIC timer frequency MSR (HV_X64_MSR_APIC_FREQUENCY) is available */
 #define HV_X64_MSR_APIC_FREQUENCY_AVAILABLE (1 << 11)

 /* TSC frequency MSR (HV_X64_MSR_TSC_FREQUENCY) is available */
 #define HV_X64_MSR_TSC_FREQUENCY_AVAILABLE (1 << 11)

 /*
  * Basic SynIC MSRs (HV_X64_MSR_SCONTROL through HV_X64_MSR_EOM
  * and HV_X64_MSR_SINT0 through HV_X64_MSR_SINT15) available
  */
 #define HV_X64_MSR_SYNIC_AVAILABLE		(1 << 2)
 /*
  * Synthetic Timer MSRs (HV_X64_MSR_STIMER0_CONFIG through
  * HV_X64_MSR_STIMER3_COUNT) available
  */
 #define HV_X64_MSR_SYNTIMER_AVAILABLE		(1 << 3)
 /*
  * APIC access MSRs (HV_X64_MSR_EOI, HV_X64_MSR_ICR and HV_X64_MSR_TPR)
  * are available
  */
 #define HV_X64_MSR_APIC_ACCESS_AVAILABLE	(1 << 4)
 /* Hypercall MSRs (HV_X64_MSR_GUEST_OS_ID and HV_X64_MSR_HYPERCALL) available*/
 #define HV_X64_MSR_HYPERCALL_AVAILABLE		(1 << 5)
 /* Access virtual processor index MSR (HV_X64_MSR_VP_INDEX) available*/
 #define HV_X64_MSR_VP_INDEX_AVAILABLE		(1 << 6)
 /* Virtual system reset MSR (HV_X64_MSR_RESET) is available*/
 #define HV_X64_MSR_RESET_AVAILABLE		(1 << 7)
  /*
   * Access statistics pages MSRs (HV_X64_MSR_STATS_PARTITION_RETAIL_PAGE,
   * HV_X64_MSR_STATS_PARTITION_INTERNAL_PAGE, HV_X64_MSR_STATS_VP_RETAIL_PAGE,
   * HV_X64_MSR_STATS_VP_INTERNAL_PAGE) available
   */
 #define HV_X64_MSR_STAT_PAGES_AVAILABLE		(1 << 8)

 /*
  * Feature identification: EBX indicates which flags were specified at
  * partition creation. The format is the same as the partition creation
  * flag structure defined in section Partition Creation Flags.
  */
 #define HV_X64_CREATE_PARTITIONS		(1 << 0)
 #define HV_X64_ACCESS_PARTITION_ID		(1 << 1)
 #define HV_X64_ACCESS_MEMORY_POOL		(1 << 2)
 #define HV_X64_ADJUST_MESSAGE_BUFFERS		(1 << 3)
 #define HV_X64_POST_MESSAGES			(1 << 4)
 #define HV_X64_SIGNAL_EVENTS			(1 << 5)
 #define HV_X64_CREATE_PORT			(1 << 6)
 #define HV_X64_CONNECT_PORT			(1 << 7)
 #define HV_X64_ACCESS_STATS			(1 << 8)
 #define HV_X64_DEBUGGING			(1 << 11)
 #define HV_X64_CPU_POWER_MANAGEMENT		(1 << 12)
 #define HV_X64_CONFIGURE_PROFILER		(1 << 13)

 /*
  * Feature identification. EDX indicates which miscellaneous features
  * are available to the partition.
  */
 /* The MWAIT instruction is available (per section MONITOR / MWAIT) */
 #define HV_X64_MWAIT_AVAILABLE				(1 << 0)
 /* Guest debugging support is available */
 #define HV_X64_GUEST_DEBUGGING_AVAILABLE		(1 << 1)
 /* Performance Monitor support is available*/
 #define HV_X64_PERF_MONITOR_AVAILABLE			(1 << 2)
 /* Support for physical CPU dynamic partitioning events is available*/
 #define HV_X64_CPU_DYNAMIC_PARTITIONING_AVAILABLE	(1 << 3)
 /*
  * Support for passing hypercall input parameter block via XMM
  * registers is available
  */
 #define HV_X64_HYPERCALL_PARAMS_XMM_AVAILABLE		(1 << 4)
 /* Support for a virtual guest idle state is available */
 #define HV_X64_GUEST_IDLE_STATE_AVAILABLE		(1 << 5)
 /* Guest crash data handler available */
 #define HV_X64_GUEST_CRASH_MSR_AVAILABLE		(1 << 10)

 /*
  * Implementation recommendations. Indicates which behaviors the hypervisor
  * recommends the OS implement for optimal performance.
  */
  /*
   * Recommend using hypercall for address space switches rather
   * than MOV to CR3 instruction
   */
 #define HV_X64_MWAIT_RECOMMENDED		(1 << 0)
 /* Recommend using hypercall for local TLB flushes rather
  * than INVLPG or MOV to CR3 instructions */
 #define HV_X64_LOCAL_TLB_FLUSH_RECOMMENDED	(1 << 1)
 /*
  * Recommend using hypercall for remote TLB flushes rather
  * than inter-processor interrupts
  */
 #define HV_X64_REMOTE_TLB_FLUSH_RECOMMENDED	(1 << 2)
 /*
  * Recommend using MSRs for accessing APIC registers
  * EOI, ICR and TPR rather than their memory-mapped counterparts
  */
 #define HV_X64_APIC_ACCESS_RECOMMENDED		(1 << 3)
 /* Recommend using the hypervisor-provided MSR to initiate a system RESET */
 #define HV_X64_SYSTEM_RESET_RECOMMENDED		(1 << 4)
 /*
  * Recommend using relaxed timing for this partition. If used,
  * the VM should disable any watchdog timeouts that rely on the
  * timely delivery of external interrupts
  */
 #define HV_X64_RELAXED_TIMING_RECOMMENDED	(1 << 5)

 /* MSR used to identify the guest OS. */
 #define HV_X64_MSR_GUEST_OS_ID			0x40000000

 /* MSR used to setup pages used to communicate with the hypervisor. */
 #define HV_X64_MSR_HYPERCALL			0x40000001

 /* MSR used to provide vcpu index */
 #define HV_X64_MSR_VP_INDEX			0x40000002

 /* MSR used to read the per-partition time reference counter */
 #define HV_X64_MSR_TIME_REF_COUNT		0x40000020

 /* MSR used to retrieve the TSC frequency */
 #define HV_X64_MSR_TSC_FREQUENCY		0x40000022

 /* MSR used to retrieve the local APIC timer frequency */
 #define HV_X64_MSR_APIC_FREQUENCY		0x40000023

 /* Define the virtual APIC registers */
 #define HV_X64_MSR_EOI				0x40000070
 #define HV_X64_MSR_ICR				0x40000071
 #define HV_X64_MSR_TPR				0x40000072
 #define HV_X64_MSR_APIC_ASSIST_PAGE		0x40000073

 /* Define synthetic interrupt controller model specific registers. */
 #define HV_X64_MSR_SCONTROL			0x40000080
 #define HV_X64_MSR_SVERSION			0x40000081
 #define HV_X64_MSR_SIEFP			0x40000082
 #define HV_X64_MSR_SIMP				0x40000083
 #define HV_X64_MSR_EOM				0x40000084
 #define HV_X64_MSR_SINT0			0x40000090
 #define HV_X64_MSR_SINT1			0x40000091
 #define HV_X64_MSR_SINT2			0x40000092
 #define HV_X64_MSR_SINT3			0x40000093
 #define HV_X64_MSR_SINT4			0x40000094
 #define HV_X64_MSR_SINT5			0x40000095
 #define HV_X64_MSR_SINT6			0x40000096
 #define HV_X64_MSR_SINT7			0x40000097
 #define HV_X64_MSR_SINT8			0x40000098
 #define HV_X64_MSR_SINT9			0x40000099
 #define HV_X64_MSR_SINT10			0x4000009A
 #define HV_X64_MSR_SINT11			0x4000009B
 #define HV_X64_MSR_SINT12			0x4000009C
 #define HV_X64_MSR_SINT13			0x4000009D
 #define HV_X64_MSR_SINT14			0x4000009E
 #define HV_X64_MSR_SINT15			0x4000009F

 /*
  * Synthetic Timer MSRs. Four timers per vcpu.
  */
 #define HV_X64_MSR_STIMER0_CONFIG		0x400000B0
 #define HV_X64_MSR_STIMER0_COUNT		0x400000B1
 #define HV_X64_MSR_STIMER1_CONFIG		0x400000B2
 #define HV_X64_MSR_STIMER1_COUNT		0x400000B3
 #define HV_X64_MSR_STIMER2_CONFIG		0x400000B4
 #define HV_X64_MSR_STIMER2_COUNT		0x400000B5
 #define HV_X64_MSR_STIMER3_CONFIG		0x400000B6
 #define HV_X64_MSR_STIMER3_COUNT		0x400000B7

 /* Hyper-V guest crash notification MSR's */
 #define HV_X64_MSR_CRASH_P0			0x40000100
 #define HV_X64_MSR_CRASH_P1			0x40000101
 #define HV_X64_MSR_CRASH_P2			0x40000102
 #define HV_X64_MSR_CRASH_P3			0x40000103
 #define HV_X64_MSR_CRASH_P4			0x40000104
 #define HV_X64_MSR_CRASH_CTL			0x40000105
 #define HV_X64_MSR_CRASH_CTL_NOTIFY		(1ULL << 63)
 #define HV_X64_MSR_CRASH_PARAMS		\
 		(1 + (HV_X64_MSR_CRASH_P4 - HV_X64_MSR_CRASH_P0))

 #define HV_X64_MSR_HYPERCALL_ENABLE		0x00000001
 #define HV_X64_MSR_HYPERCALL_PAGE_ADDRESS_SHIFT	12
 #define HV_X64_MSR_HYPERCALL_PAGE_ADDRESS_MASK	\
 		(~((1ull << HV_X64_MSR_HYPERCALL_PAGE_ADDRESS_SHIFT) - 1))

 /* Declare the various hypercall operations. */
 #define HV_X64_HV_NOTIFY_LONG_SPIN_WAIT		0x0008

 #define HV_X64_MSR_APIC_ASSIST_PAGE_ENABLE		0x00000001
 #define HV_X64_MSR_APIC_ASSIST_PAGE_ADDRESS_SHIFT	12
 #define HV_X64_MSR_APIC_ASSIST_PAGE_ADDRESS_MASK	\
 		(~((1ull << HV_X64_MSR_APIC_ASSIST_PAGE_ADDRESS_SHIFT) - 1))

 #define HV_X64_MSR_TSC_REFERENCE_ENABLE		0x00000001
 #define HV_X64_MSR_TSC_REFERENCE_ADDRESS_SHIFT	12

 #define HV_PROCESSOR_POWER_STATE_C0		0
 #define HV_PROCESSOR_POWER_STATE_C1		1
 #define HV_PROCESSOR_POWER_STATE_C2		2
 #define HV_PROCESSOR_POWER_STATE_C3		3

 /* hypercall status code */
 #define HV_STATUS_SUCCESS			0
 #define HV_STATUS_INVALID_HYPERCALL_CODE	2
 #define HV_STATUS_INVALID_HYPERCALL_INPUT	3
 #define HV_STATUS_INVALID_ALIGNMENT		4
 #define HV_STATUS_INSUFFICIENT_MEMORY		11
 #define HV_STATUS_INVALID_CONNECTION_ID		18
 #define HV_STATUS_INSUFFICIENT_BUFFERS		19

 typedef struct _HV_REFERENCE_TSC_PAGE {
 	__u32 tsc_sequence;
 	__u32 res1;
 	__u64 tsc_scale;
 	__s64 tsc_offset;
 } HV_REFERENCE_TSC_PAGE, *PHV_REFERENCE_TSC_PAGE;

 #endif
	#ifndef _ASM_X86_HYPERV_H
	#define _ASM_X86_HYPERV_H

	#include <linux/types.h>

	/*
	* The below CPUID leaves are present if VersionAndFeatures.HypervisorPresent
	* is set by CPUID(HvCpuIdFunctionVersionAndFeatures).
	*/
	#define HYPERV_CPUID_VENDOR_AND_MAX_FUNCTIONS 0x40000000
	#define HYPERV_CPUID_INTERFACE 0x40000001
	#define HYPERV_CPUID_VERSION 0x40000002
	#define HYPERV_CPUID_FEATURES 0x40000003
	#define HYPERV_CPUID_ENLIGHTMENT_INFO 0x40000004
	#define HYPERV_CPUID_IMPLEMENT_LIMITS 0x40000005

	#define HYPERV_HYPERVISOR_PRESENT_BIT 0x80000000
	#define HYPERV_CPUID_MIN 0x40000005
	#define HYPERV_CPUID_MAX 0x4000ffff

	/*
	* Feature identification. EAX indicates which features are available
	* to the partition based upon the current partition privileges.
	*/

	/* VP Runtime (HV_X64_MSR_VP_RUNTIME) available */
	#define HV_X64_MSR_VP_RUNTIME_AVAILABLE (1 << 0)
	/* Partition Reference Counter (HV_X64_MSR_TIME_REF_COUNT) available*/
	#define HV_X64_MSR_TIME_REF_COUNT_AVAILABLE (1 << 1)

	/* A partition's reference time stamp counter (TSC) page */
	#define HV_X64_MSR_REFERENCE_TSC 0x40000021

	/*
	* There is a single feature flag that signifies the presence of the MSR
	* that can be used to retrieve both the local APIC Timer frequency as
	* well as the TSC frequency.
	*/

	/* Local APIC timer frequency MSR (HV_X64_MSR_APIC_FREQUENCY) is available */
	#define HV_X64_MSR_APIC_FREQUENCY_AVAILABLE (1 << 11)

	/* TSC frequency MSR (HV_X64_MSR_TSC_FREQUENCY) is available */
	#define HV_X64_MSR_TSC_FREQUENCY_AVAILABLE (1 << 11)

	/*
	* Basic SynIC MSRs (HV_X64_MSR_SCONTROL through HV_X64_MSR_EOM
	* and HV_X64_MSR_SINT0 through HV_X64_MSR_SINT15) available
	*/
	#define HV_X64_MSR_SYNIC_AVAILABLE (1 << 2)
	/*
	* Synthetic Timer MSRs (HV_X64_MSR_STIMER0_CONFIG through
	* HV_X64_MSR_STIMER3_COUNT) available
	*/
	#define HV_X64_MSR_SYNTIMER_AVAILABLE (1 << 3)
	/*
	* APIC access MSRs (HV_X64_MSR_EOI, HV_X64_MSR_ICR and HV_X64_MSR_TPR)
	* are available
	*/
	#define HV_X64_MSR_APIC_ACCESS_AVAILABLE (1 << 4)
	/* Hypercall MSRs (HV_X64_MSR_GUEST_OS_ID and HV_X64_MSR_HYPERCALL) available*/
	#define HV_X64_MSR_HYPERCALL_AVAILABLE (1 << 5)
	/* Access virtual processor index MSR (HV_X64_MSR_VP_INDEX) available*/
	#define HV_X64_MSR_VP_INDEX_AVAILABLE (1 << 6)
	/* Virtual system reset MSR (HV_X64_MSR_RESET) is available*/
	#define HV_X64_MSR_RESET_AVAILABLE (1 << 7)
	/*
	* Access statistics pages MSRs (HV_X64_MSR_STATS_PARTITION_RETAIL_PAGE,
	* HV_X64_MSR_STATS_PARTITION_INTERNAL_PAGE, HV_X64_MSR_STATS_VP_RETAIL_PAGE,
	* HV_X64_MSR_STATS_VP_INTERNAL_PAGE) available
	*/
	#define HV_X64_MSR_STAT_PAGES_AVAILABLE (1 << 8)

	/*
	* Feature identification: EBX indicates which flags were specified at
	* partition creation. The format is the same as the partition creation
	* flag structure defined in section Partition Creation Flags.
	*/
	#define HV_X64_CREATE_PARTITIONS (1 << 0)
	#define HV_X64_ACCESS_PARTITION_ID (1 << 1)
	#define HV_X64_ACCESS_MEMORY_POOL (1 << 2)
	#define HV_X64_ADJUST_MESSAGE_BUFFERS (1 << 3)
	#define HV_X64_POST_MESSAGES (1 << 4)
	#define HV_X64_SIGNAL_EVENTS (1 << 5)
	#define HV_X64_CREATE_PORT (1 << 6)
	#define HV_X64_CONNECT_PORT (1 << 7)
	#define HV_X64_ACCESS_STATS (1 << 8)
	#define HV_X64_DEBUGGING (1 << 11)
	#define HV_X64_CPU_POWER_MANAGEMENT (1 << 12)
	#define HV_X64_CONFIGURE_PROFILER (1 << 13)

	/*
	* Feature identification. EDX indicates which miscellaneous features
	* are available to the partition.
	*/
	/* The MWAIT instruction is available (per section MONITOR / MWAIT) */
	#define HV_X64_MWAIT_AVAILABLE (1 << 0)
	/* Guest debugging support is available */
	#define HV_X64_GUEST_DEBUGGING_AVAILABLE (1 << 1)
	/* Performance Monitor support is available*/
	#define HV_X64_PERF_MONITOR_AVAILABLE (1 << 2)
	/* Support for physical CPU dynamic partitioning events is available*/
	#define HV_X64_CPU_DYNAMIC_PARTITIONING_AVAILABLE (1 << 3)
	/*
	* Support for passing hypercall input parameter block via XMM
	* registers is available
	*/
	#define HV_X64_HYPERCALL_PARAMS_XMM_AVAILABLE (1 << 4)
	/* Support for a virtual guest idle state is available */
	#define HV_X64_GUEST_IDLE_STATE_AVAILABLE (1 << 5)
	/* Guest crash data handler available */
	#define HV_X64_GUEST_CRASH_MSR_AVAILABLE (1 << 10)

	/*
	* Implementation recommendations. Indicates which behaviors the hypervisor
	* recommends the OS implement for optimal performance.
	*/
	/*
	* Recommend using hypercall for address space switches rather
	* than MOV to CR3 instruction
	*/
	#define HV_X64_MWAIT_RECOMMENDED (1 << 0)
	/* Recommend using hypercall for local TLB flushes rather
	* than INVLPG or MOV to CR3 instructions */
	#define HV_X64_LOCAL_TLB_FLUSH_RECOMMENDED (1 << 1)
	/*
	* Recommend using hypercall for remote TLB flushes rather
	* than inter-processor interrupts
	*/
	#define HV_X64_REMOTE_TLB_FLUSH_RECOMMENDED (1 << 2)
	/*
	* Recommend using MSRs for accessing APIC registers
	* EOI, ICR and TPR rather than their memory-mapped counterparts
	*/
	#define HV_X64_APIC_ACCESS_RECOMMENDED (1 << 3)
	/* Recommend using the hypervisor-provided MSR to initiate a system RESET */
	#define HV_X64_SYSTEM_RESET_RECOMMENDED (1 << 4)
	/*
	* Recommend using relaxed timing for this partition. If used,
	* the VM should disable any watchdog timeouts that rely on the
	* timely delivery of external interrupts
	*/
	#define HV_X64_RELAXED_TIMING_RECOMMENDED (1 << 5)

	/* MSR used to identify the guest OS. */
	#define HV_X64_MSR_GUEST_OS_ID 0x40000000

	/* MSR used to setup pages used to communicate with the hypervisor. */
	#define HV_X64_MSR_HYPERCALL 0x40000001

	/* MSR used to provide vcpu index */
	#define HV_X64_MSR_VP_INDEX 0x40000002

	/* MSR used to read the per-partition time reference counter */
	#define HV_X64_MSR_TIME_REF_COUNT 0x40000020

	/* MSR used to retrieve the TSC frequency */
	#define HV_X64_MSR_TSC_FREQUENCY 0x40000022

	/* MSR used to retrieve the local APIC timer frequency */
	#define HV_X64_MSR_APIC_FREQUENCY 0x40000023

	/* Define the virtual APIC registers */
	#define HV_X64_MSR_EOI 0x40000070
	#define HV_X64_MSR_ICR 0x40000071
	#define HV_X64_MSR_TPR 0x40000072
	#define HV_X64_MSR_APIC_ASSIST_PAGE 0x40000073

	/* Define synthetic interrupt controller model specific registers. */
	#define HV_X64_MSR_SCONTROL 0x40000080
	#define HV_X64_MSR_SVERSION 0x40000081
	#define HV_X64_MSR_SIEFP 0x40000082
	#define HV_X64_MSR_SIMP 0x40000083
	#define HV_X64_MSR_EOM 0x40000084
	#define HV_X64_MSR_SINT0 0x40000090
	#define HV_X64_MSR_SINT1 0x40000091
	#define HV_X64_MSR_SINT2 0x40000092
	#define HV_X64_MSR_SINT3 0x40000093
	#define HV_X64_MSR_SINT4 0x40000094
	#define HV_X64_MSR_SINT5 0x40000095
	#define HV_X64_MSR_SINT6 0x40000096
	#define HV_X64_MSR_SINT7 0x40000097
	#define HV_X64_MSR_SINT8 0x40000098
	#define HV_X64_MSR_SINT9 0x40000099
	#define HV_X64_MSR_SINT10 0x4000009A
	#define HV_X64_MSR_SINT11 0x4000009B
	#define HV_X64_MSR_SINT12 0x4000009C
	#define HV_X64_MSR_SINT13 0x4000009D
	#define HV_X64_MSR_SINT14 0x4000009E
	#define HV_X64_MSR_SINT15 0x4000009F

	/*
	* Synthetic Timer MSRs. Four timers per vcpu.
	*/
	#define HV_X64_MSR_STIMER0_CONFIG 0x400000B0
	#define HV_X64_MSR_STIMER0_COUNT 0x400000B1
	#define HV_X64_MSR_STIMER1_CONFIG 0x400000B2
	#define HV_X64_MSR_STIMER1_COUNT 0x400000B3
	#define HV_X64_MSR_STIMER2_CONFIG 0x400000B4
	#define HV_X64_MSR_STIMER2_COUNT 0x400000B5
	#define HV_X64_MSR_STIMER3_CONFIG 0x400000B6
	#define HV_X64_MSR_STIMER3_COUNT 0x400000B7

	/* Hyper-V guest crash notification MSR's */
	#define HV_X64_MSR_CRASH_P0 0x40000100
	#define HV_X64_MSR_CRASH_P1 0x40000101
	#define HV_X64_MSR_CRASH_P2 0x40000102
	#define HV_X64_MSR_CRASH_P3 0x40000103
	#define HV_X64_MSR_CRASH_P4 0x40000104
	#define HV_X64_MSR_CRASH_CTL 0x40000105
	#define HV_X64_MSR_CRASH_CTL_NOTIFY (1ULL << 63)
	#define HV_X64_MSR_CRASH_PARAMS \
	(1 + (HV_X64_MSR_CRASH_P4 - HV_X64_MSR_CRASH_P0))

	#define HV_X64_MSR_HYPERCALL_ENABLE 0x00000001
	#define HV_X64_MSR_HYPERCALL_PAGE_ADDRESS_SHIFT 12
	#define HV_X64_MSR_HYPERCALL_PAGE_ADDRESS_MASK \
	(~((1ull << HV_X64_MSR_HYPERCALL_PAGE_ADDRESS_SHIFT) - 1))

	/* Declare the various hypercall operations. */
	#define HV_X64_HV_NOTIFY_LONG_SPIN_WAIT 0x0008

	#define HV_X64_MSR_APIC_ASSIST_PAGE_ENABLE 0x00000001
	#define HV_X64_MSR_APIC_ASSIST_PAGE_ADDRESS_SHIFT 12
	#define HV_X64_MSR_APIC_ASSIST_PAGE_ADDRESS_MASK \
	(~((1ull << HV_X64_MSR_APIC_ASSIST_PAGE_ADDRESS_SHIFT) - 1))

	#define HV_X64_MSR_TSC_REFERENCE_ENABLE 0x00000001
	#define HV_X64_MSR_TSC_REFERENCE_ADDRESS_SHIFT 12

	#define HV_PROCESSOR_POWER_STATE_C0 0
	#define HV_PROCESSOR_POWER_STATE_C1 1
	#define HV_PROCESSOR_POWER_STATE_C2 2
	#define HV_PROCESSOR_POWER_STATE_C3 3

	/* hypercall status code */
	#define HV_STATUS_SUCCESS 0
	#define HV_STATUS_INVALID_HYPERCALL_CODE 2
	#define HV_STATUS_INVALID_HYPERCALL_INPUT 3
	#define HV_STATUS_INVALID_ALIGNMENT 4
	#define HV_STATUS_INSUFFICIENT_MEMORY 11
	#define HV_STATUS_INVALID_CONNECTION_ID 18
	#define HV_STATUS_INSUFFICIENT_BUFFERS 19

	typedef struct _HV_REFERENCE_TSC_PAGE {
	__u32 tsc_sequence;
	__u32 res1;
	__u64 tsc_scale;
	__s64 tsc_offset;
	} HV_REFERENCE_TSC_PAGE, *PHV_REFERENCE_TSC_PAGE;

	#endif