arch/x86/include/asm/hyperv.h

   1 #ifndef _ASM_X86_KVM_HYPERV_H
   2 #define _ASM_X86_KVM_HYPERV_H
   3
   4 #include <linux/types.h>
   5
   6 /*
   7  * The below CPUID leaves are present if VersionAndFeatures.HypervisorPresent
   8  * is set by CPUID(HvCpuIdFunctionVersionAndFeatures).
   9  */
  10 #define HYPERV_CPUID_VENDOR_AND_MAX_FUNCTIONS   0x40000000
  11 #define HYPERV_CPUID_INTERFACE                  0x40000001
  12 #define HYPERV_CPUID_VERSION                    0x40000002
  13 #define HYPERV_CPUID_FEATURES                   0x40000003
  14 #define HYPERV_CPUID_ENLIGHTMENT_INFO           0x40000004
  15 #define HYPERV_CPUID_IMPLEMENT_LIMITS           0x40000005
  16
  17 #define HYPERV_HYPERVISOR_PRESENT_BIT           0x80000000
  18 #define HYPERV_CPUID_MIN                        0x40000005
  19
  20 /*
  21  * Feature identification. EAX indicates which features are available
  22  * to the partition based upon the current partition privileges.
  23  */
  24
  25 /* VP Runtime (HV_X64_MSR_VP_RUNTIME) available */
  26 #define HV_X64_MSR_VP_RUNTIME_AVAILABLE         (1 << 0)
  27 /* Partition Reference Counter (HV_X64_MSR_TIME_REF_COUNT) available*/
  28 #define HV_X64_MSR_TIME_REF_COUNT_AVAILABLE     (1 << 1)
  29 /*
  30  * Basic SynIC MSRs (HV_X64_MSR_SCONTROL through HV_X64_MSR_EOM
  31  * and HV_X64_MSR_SINT0 through HV_X64_MSR_SINT15) available
  32  */
  33 #define HV_X64_MSR_SYNIC_AVAILABLE              (1 << 2)
  34 /*
  35  * Synthetic Timer MSRs (HV_X64_MSR_STIMER0_CONFIG through
  36  * HV_X64_MSR_STIMER3_COUNT) available
  37  */
  38 #define HV_X64_MSR_SYNTIMER_AVAILABLE           (1 << 3)
  39 /*
  40  * APIC access MSRs (HV_X64_MSR_EOI, HV_X64_MSR_ICR and HV_X64_MSR_TPR)
  41  * are available
  42  */
  43 #define HV_X64_MSR_APIC_ACCESS_AVAILABLE        (1 << 4)
  44 /* Hypercall MSRs (HV_X64_MSR_GUEST_OS_ID and HV_X64_MSR_HYPERCALL) available*/
  45 #define HV_X64_MSR_HYPERCALL_AVAILABLE          (1 << 5)
  46 /* Access virtual processor index MSR (HV_X64_MSR_VP_INDEX) available*/
  47 #define HV_X64_MSR_VP_INDEX_AVAILABLE           (1 << 6)
  48 /* Virtual system reset MSR (HV_X64_MSR_RESET) is available*/
  49 #define HV_X64_MSR_RESET_AVAILABLE              (1 << 7)
  50  /*
  51   * Access statistics pages MSRs (HV_X64_MSR_STATS_PARTITION_RETAIL_PAGE,
  52   * HV_X64_MSR_STATS_PARTITION_INTERNAL_PAGE, HV_X64_MSR_STATS_VP_RETAIL_PAGE,
  53   * HV_X64_MSR_STATS_VP_INTERNAL_PAGE) available
  54   */
  55 #define HV_X64_MSR_STAT_PAGES_AVAILABLE         (1 << 8)
  56
  57 /*
  58  * Feature identification: EBX indicates which flags were specified at
  59  * partition creation. The format is the same as the partition creation
  60  * flag structure defined in section Partition Creation Flags.
  61  */
  62 #define HV_X64_CREATE_PARTITIONS                (1 << 0)
  63 #define HV_X64_ACCESS_PARTITION_ID              (1 << 1)
  64 #define HV_X64_ACCESS_MEMORY_POOL               (1 << 2)
  65 #define HV_X64_ADJUST_MESSAGE_BUFFERS           (1 << 3)
  66 #define HV_X64_POST_MESSAGES                    (1 << 4)
  67 #define HV_X64_SIGNAL_EVENTS                    (1 << 5)
  68 #define HV_X64_CREATE_PORT                      (1 << 6)
  69 #define HV_X64_CONNECT_PORT                     (1 << 7)
  70 #define HV_X64_ACCESS_STATS                     (1 << 8)
  71 #define HV_X64_DEBUGGING                        (1 << 11)
  72 #define HV_X64_CPU_POWER_MANAGEMENT             (1 << 12)
  73 #define HV_X64_CONFIGURE_PROFILER               (1 << 13)
  74
  75 /*
  76  * Feature identification. EDX indicates which miscellaneous features
  77  * are available to the partition.
  78  */
  79 /* The MWAIT instruction is available (per section MONITOR / MWAIT) */
  80 #define HV_X64_MWAIT_AVAILABLE                          (1 << 0)
  81 /* Guest debugging support is available */
  82 #define HV_X64_GUEST_DEBUGGING_AVAILABLE                (1 << 1)
  83 /* Performance Monitor support is available*/
  84 #define HV_X64_PERF_MONITOR_AVAILABLE                   (1 << 2)
  85 /* Support for physical CPU dynamic partitioning events is available*/
  86 #define HV_X64_CPU_DYNAMIC_PARTITIONING_AVAILABLE       (1 << 3)
  87 /*
  88  * Support for passing hypercall input parameter block via XMM
  89  * registers is available
  90  */
  91 #define HV_X64_HYPERCALL_PARAMS_XMM_AVAILABLE           (1 << 4)
  92 /* Support for a virtual guest idle state is available */
  93 #define HV_X64_GUEST_IDLE_STATE_AVAILABLE               (1 << 5)
  94
  95 /*
  96  * Implementation recommendations. Indicates which behaviors the hypervisor
  97  * recommends the OS implement for optimal performance.
  98  */
  99  /*
 100   * Recommend using hypercall for address space switches rather
 101   * than MOV to CR3 instruction
 102   */
 103 #define HV_X64_MWAIT_RECOMMENDED                (1 << 0)
 104 /* Recommend using hypercall for local TLB flushes rather
 105  * than INVLPG or MOV to CR3 instructions */
 106 #define HV_X64_LOCAL_TLB_FLUSH_RECOMMENDED      (1 << 1)
 107 /*
 108  * Recommend using hypercall for remote TLB flushes rather
 109  * than inter-processor interrupts
 110  */
 111 #define HV_X64_REMOTE_TLB_FLUSH_RECOMMENDED     (1 << 2)
 112 /*
 113  * Recommend using MSRs for accessing APIC registers
 114  * EOI, ICR and TPR rather than their memory-mapped counterparts
 115  */
 116 #define HV_X64_APIC_ACCESS_RECOMMENDED          (1 << 3)
 117 /* Recommend using the hypervisor-provided MSR to initiate a system RESET */
 118 #define HV_X64_SYSTEM_RESET_RECOMMENDED         (1 << 4)
 119 /*
 120  * Recommend using relaxed timing for this partition. If used,
 121  * the VM should disable any watchdog timeouts that rely on the
 122  * timely delivery of external interrupts
 123  */
 124 #define HV_X64_RELAXED_TIMING_RECOMMENDED       (1 << 5)
 125
 126 /* MSR used to identify the guest OS. */
 127 #define HV_X64_MSR_GUEST_OS_ID                  0x40000000
 128
 129 /* MSR used to setup pages used to communicate with the hypervisor. */
 130 #define HV_X64_MSR_HYPERCALL                    0x40000001
 131
 132 /* MSR used to provide vcpu index */
 133 #define HV_X64_MSR_VP_INDEX                     0x40000002
 134
 135 /* MSR used to read the per-partition time reference counter */
 136 #define HV_X64_MSR_TIME_REF_COUNT               0x40000020
 137
 138 /* Define the virtual APIC registers */
 139 #define HV_X64_MSR_EOI                          0x40000070
 140 #define HV_X64_MSR_ICR                          0x40000071
 141 #define HV_X64_MSR_TPR                          0x40000072
 142 #define HV_X64_MSR_APIC_ASSIST_PAGE             0x40000073
 143
 144 /* Define synthetic interrupt controller model specific registers. */
 145 #define HV_X64_MSR_SCONTROL                     0x40000080
 146 #define HV_X64_MSR_SVERSION                     0x40000081
 147 #define HV_X64_MSR_SIEFP                        0x40000082
 148 #define HV_X64_MSR_SIMP                         0x40000083
 149 #define HV_X64_MSR_EOM                          0x40000084
 150 #define HV_X64_MSR_SINT0                        0x40000090
 151 #define HV_X64_MSR_SINT1                        0x40000091
 152 #define HV_X64_MSR_SINT2                        0x40000092
 153 #define HV_X64_MSR_SINT3                        0x40000093
 154 #define HV_X64_MSR_SINT4                        0x40000094
 155 #define HV_X64_MSR_SINT5                        0x40000095
 156 #define HV_X64_MSR_SINT6                        0x40000096
 157 #define HV_X64_MSR_SINT7                        0x40000097
 158 #define HV_X64_MSR_SINT8                        0x40000098
 159 #define HV_X64_MSR_SINT9                        0x40000099
 160 #define HV_X64_MSR_SINT10                       0x4000009A
 161 #define HV_X64_MSR_SINT11                       0x4000009B
 162 #define HV_X64_MSR_SINT12                       0x4000009C
 163 #define HV_X64_MSR_SINT13                       0x4000009D
 164 #define HV_X64_MSR_SINT14                       0x4000009E
 165 #define HV_X64_MSR_SINT15                       0x4000009F
 166
 167
 168 #define HV_X64_MSR_HYPERCALL_ENABLE             0x00000001
 169 #define HV_X64_MSR_HYPERCALL_PAGE_ADDRESS_SHIFT 12
 170 #define HV_X64_MSR_HYPERCALL_PAGE_ADDRESS_MASK  \
 171                 (~((1ull << HV_X64_MSR_HYPERCALL_PAGE_ADDRESS_SHIFT) - 1))
 172
 173 /* Declare the various hypercall operations. */
 174 #define HV_X64_HV_NOTIFY_LONG_SPIN_WAIT         0x0008
 175
 176 #define HV_X64_MSR_APIC_ASSIST_PAGE_ENABLE              0x00000001
 177 #define HV_X64_MSR_APIC_ASSIST_PAGE_ADDRESS_SHIFT       12
 178 #define HV_X64_MSR_APIC_ASSIST_PAGE_ADDRESS_MASK        \
 179                 (~((1ull << HV_X64_MSR_APIC_ASSIST_PAGE_ADDRESS_SHIFT) - 1))
 180
 181 #define HV_PROCESSOR_POWER_STATE_C0             0
 182 #define HV_PROCESSOR_POWER_STATE_C1             1
 183 #define HV_PROCESSOR_POWER_STATE_C2             2
 184 #define HV_PROCESSOR_POWER_STATE_C3             3
 185
 186 /* hypercall status code */
 187 #define HV_STATUS_SUCCESS                       0
 188 #define HV_STATUS_INVALID_HYPERCALL_CODE        2
 189 #define HV_STATUS_INVALID_HYPERCALL_INPUT       3
 190 #define HV_STATUS_INVALID_ALIGNMENT             4
 191
 192 #endif