| /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ |
| #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) |
| /* Partition reference TSC MSR is available */ |
| #define HV_X64_MSR_REFERENCE_TSC_AVAILABLE (1 << 9) |
| |
| /* A partition's reference time stamp counter (TSC) page */ |
| #define HV_X64_MSR_REFERENCE_TSC 0x40000021 |
| |
| /* |
| * There is a single feature flag that signifies if the partition has access |
| * to MSRs with local APIC and TSC frequencies. |
| */ |
| #define HV_X64_ACCESS_FREQUENCY_MSRS (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) |
| |
| /* Frequency MSRs available */ |
| #define HV_FEATURE_FREQUENCY_MSRS_AVAILABLE (1 << 8) |
| |
| /* Crash MSR available */ |
| #define HV_FEATURE_GUEST_CRASH_MSR_AVAILABLE (1 << 10) |
| |
| /* |
| * 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_AS_SWITCH_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) |
| |
| /* |
| * Virtual APIC support |
| */ |
| #define HV_X64_DEPRECATING_AEOI_RECOMMENDED (1 << 9) |
| |
| /* Recommend using the newer ExProcessorMasks interface */ |
| #define HV_X64_EX_PROCESSOR_MASKS_RECOMMENDED (1 << 11) |
| |
| /* |
| * Crash notification flag. |
| */ |
| #define HV_CRASH_CTL_CRASH_NOTIFY (1ULL << 63) |
| |
| /* 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 reset the guest OS. */ |
| #define HV_X64_MSR_RESET 0x40000003 |
| |
| /* MSR used to provide vcpu runtime in 100ns units */ |
| #define HV_X64_MSR_VP_RUNTIME 0x40000010 |
| |
| /* 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 HVCALL_FLUSH_VIRTUAL_ADDRESS_SPACE 0x0002 |
| #define HVCALL_FLUSH_VIRTUAL_ADDRESS_LIST 0x0003 |
| #define HVCALL_NOTIFY_LONG_SPIN_WAIT 0x0008 |
| #define HVCALL_FLUSH_VIRTUAL_ADDRESS_SPACE_EX 0x0013 |
| #define HVCALL_FLUSH_VIRTUAL_ADDRESS_LIST_EX 0x0014 |
| #define HVCALL_POST_MESSAGE 0x005c |
| #define HVCALL_SIGNAL_EVENT 0x005d |
| |
| #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 |
| |
| #define HV_FLUSH_ALL_PROCESSORS BIT(0) |
| #define HV_FLUSH_ALL_VIRTUAL_ADDRESS_SPACES BIT(1) |
| #define HV_FLUSH_NON_GLOBAL_MAPPINGS_ONLY BIT(2) |
| #define HV_FLUSH_USE_EXTENDED_RANGE_FORMAT BIT(3) |
| |
| enum HV_GENERIC_SET_FORMAT { |
| HV_GENERIC_SET_SPARCE_4K, |
| HV_GENERIC_SET_ALL, |
| }; |
| |
| /* 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; |
| |
| /* Define the number of synthetic interrupt sources. */ |
| #define HV_SYNIC_SINT_COUNT (16) |
| /* Define the expected SynIC version. */ |
| #define HV_SYNIC_VERSION_1 (0x1) |
| |
| #define HV_SYNIC_CONTROL_ENABLE (1ULL << 0) |
| #define HV_SYNIC_SIMP_ENABLE (1ULL << 0) |
| #define HV_SYNIC_SIEFP_ENABLE (1ULL << 0) |
| #define HV_SYNIC_SINT_MASKED (1ULL << 16) |
| #define HV_SYNIC_SINT_AUTO_EOI (1ULL << 17) |
| #define HV_SYNIC_SINT_VECTOR_MASK (0xFF) |
| |
| #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]; |
| }; |
| |
| /* Define timer message payload structure. */ |
| struct hv_timer_message_payload { |
| __u32 timer_index; |
| __u32 reserved; |
| __u64 expiration_time; /* When the timer expired */ |
| __u64 delivery_time; /* When the message was delivered */ |
| }; |
| |
| #define HV_STIMER_ENABLE (1ULL << 0) |
| #define HV_STIMER_PERIODIC (1ULL << 1) |
| #define HV_STIMER_LAZY (1ULL << 2) |
| #define HV_STIMER_AUTOENABLE (1ULL << 3) |
| #define HV_STIMER_SINT(config) (__u8)(((config) >> 16) & 0x0F) |
| |
| #endif |
