/* SPDX-License-Identifier: GPL-2.0 */ /* * This file contains definitions from Hyper-V Hypervisor Top-Level Functional * Specification (TLFS): * https://docs.microsoft.com/en-us/virtualization/hyper-v-on-windows/reference/tlfs */ #ifndef _ASM_X86_HYPERV_TLFS_H #define _ASM_X86_HYPERV_TLFS_H #include #include /* * 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_CPUID_CPU_MANAGEMENT_FEATURES 0x40000007 #define HYPERV_CPUID_NESTED_FEATURES 0x4000000A #define HYPERV_CPUID_ISOLATION_CONFIG 0x4000000C #define HYPERV_CPUID_VIRT_STACK_INTERFACE 0x40000081 #define HYPERV_VS_INTERFACE_EAX_SIGNATURE 0x31235356 /* "VS#1" */ #define HYPERV_CPUID_VIRT_STACK_PROPERTIES 0x40000082 /* Support for the extended IOAPIC RTE format */ #define HYPERV_VS_PROPERTIES_EAX_EXTENDED_IOAPIC_RTE BIT(2) #define HYPERV_HYPERVISOR_PRESENT_BIT 0x80000000 #define HYPERV_CPUID_MIN 0x40000005 #define HYPERV_CPUID_MAX 0x4000ffff /* * Group D Features. The bit assignments are custom to each architecture. * On x86/x64 these are HYPERV_CPUID_FEATURES.EDX bits. */ /* The MWAIT instruction is available (per section MONITOR / MWAIT) */ #define HV_X64_MWAIT_AVAILABLE BIT(0) /* Guest debugging support is available */ #define HV_X64_GUEST_DEBUGGING_AVAILABLE BIT(1) /* Performance Monitor support is available*/ #define HV_X64_PERF_MONITOR_AVAILABLE BIT(2) /* Support for physical CPU dynamic partitioning events is available*/ #define HV_X64_CPU_DYNAMIC_PARTITIONING_AVAILABLE BIT(3) /* * Support for passing hypercall input parameter block via XMM * registers is available */ #define HV_X64_HYPERCALL_XMM_INPUT_AVAILABLE BIT(4) /* Support for a virtual guest idle state is available */ #define HV_X64_GUEST_IDLE_STATE_AVAILABLE BIT(5) /* Frequency MSRs available */ #define HV_FEATURE_FREQUENCY_MSRS_AVAILABLE BIT(8) /* Crash MSR available */ #define HV_FEATURE_GUEST_CRASH_MSR_AVAILABLE BIT(10) /* Support for debug MSRs available */ #define HV_FEATURE_DEBUG_MSRS_AVAILABLE BIT(11) /* * Support for returning hypercall output block via XMM * registers is available */ #define HV_X64_HYPERCALL_XMM_OUTPUT_AVAILABLE BIT(15) /* stimer Direct Mode is available */ #define HV_STIMER_DIRECT_MODE_AVAILABLE BIT(19) /* * Implementation recommendations. Indicates which behaviors the hypervisor * recommends the OS implement for optimal performance. * These are HYPERV_CPUID_ENLIGHTMENT_INFO.EAX bits. */ /* * Recommend using hypercall for address space switches rather * than MOV to CR3 instruction */ #define HV_X64_AS_SWITCH_RECOMMENDED BIT(0) /* Recommend using hypercall for local TLB flushes rather * than INVLPG or MOV to CR3 instructions */ #define HV_X64_LOCAL_TLB_FLUSH_RECOMMENDED BIT(1) /* * Recommend using hypercall for remote TLB flushes rather * than inter-processor interrupts */ #define HV_X64_REMOTE_TLB_FLUSH_RECOMMENDED BIT(2) /* * Recommend using MSRs for accessing APIC registers * EOI, ICR and TPR rather than their memory-mapped counterparts */ #define HV_X64_APIC_ACCESS_RECOMMENDED BIT(3) /* Recommend using the hypervisor-provided MSR to initiate a system RESET */ #define HV_X64_SYSTEM_RESET_RECOMMENDED BIT(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 BIT(5) /* * Recommend not using Auto End-Of-Interrupt feature */ #define HV_DEPRECATING_AEOI_RECOMMENDED BIT(9) /* * Recommend using cluster IPI hypercalls. */ #define HV_X64_CLUSTER_IPI_RECOMMENDED BIT(10) /* Recommend using the newer ExProcessorMasks interface */ #define HV_X64_EX_PROCESSOR_MASKS_RECOMMENDED BIT(11) /* Recommend using enlightened VMCS */ #define HV_X64_ENLIGHTENED_VMCS_RECOMMENDED BIT(14) /* * CPU management features identification. * These are HYPERV_CPUID_CPU_MANAGEMENT_FEATURES.EAX bits. */ #define HV_X64_START_LOGICAL_PROCESSOR BIT(0) #define HV_X64_CREATE_ROOT_VIRTUAL_PROCESSOR BIT(1) #define HV_X64_PERFORMANCE_COUNTER_SYNC BIT(2) #define HV_X64_RESERVED_IDENTITY_BIT BIT(31) /* * Virtual processor will never share a physical core with another virtual * processor, except for virtual processors that are reported as sibling SMT * threads. */ #define HV_X64_NO_NONARCH_CORESHARING BIT(18) /* Nested features. These are HYPERV_CPUID_NESTED_FEATURES.EAX bits. */ #define HV_X64_NESTED_DIRECT_FLUSH BIT(17) #define HV_X64_NESTED_GUEST_MAPPING_FLUSH BIT(18) #define HV_X64_NESTED_MSR_BITMAP BIT(19) /* * This is specific to AMD and specifies that enlightened TLB flush is * supported. If guest opts in to this feature, ASID invalidations only * flushes gva -> hpa mapping entries. To flush the TLB entries derived * from NPT, hypercalls should be used (HvFlushGuestPhysicalAddressSpace * or HvFlushGuestPhysicalAddressList). */ #define HV_X64_NESTED_ENLIGHTENED_TLB BIT(22) /* HYPERV_CPUID_ISOLATION_CONFIG.EAX bits. */ #define HV_PARAVISOR_PRESENT BIT(0) /* HYPERV_CPUID_ISOLATION_CONFIG.EBX bits. */ #define HV_ISOLATION_TYPE GENMASK(3, 0) #define HV_SHARED_GPA_BOUNDARY_ACTIVE BIT(5) #define HV_SHARED_GPA_BOUNDARY_BITS GENMASK(11, 6) enum hv_isolation_type { HV_ISOLATION_TYPE_NONE = 0, HV_ISOLATION_TYPE_VBS = 1, HV_ISOLATION_TYPE_SNP = 2 }; /* Hyper-V specific model specific registers (MSRs) */ /* 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_REGISTER_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_REGISTER_TIME_REF_COUNT 0x40000020 /* A partition's reference time stamp counter (TSC) page */ #define HV_REGISTER_REFERENCE_TSC 0x40000021 /* 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_VP_ASSIST_PAGE 0x40000073 /* Define synthetic interrupt controller model specific registers. */ #define HV_REGISTER_SCONTROL 0x40000080 #define HV_REGISTER_SVERSION 0x40000081 #define HV_REGISTER_SIEFP 0x40000082 #define HV_REGISTER_SIMP 0x40000083 #define HV_REGISTER_EOM 0x40000084 #define HV_REGISTER_SINT0 0x40000090 #define HV_REGISTER_SINT1 0x40000091 #define HV_REGISTER_SINT2 0x40000092 #define HV_REGISTER_SINT3 0x40000093 #define HV_REGISTER_SINT4 0x40000094 #define HV_REGISTER_SINT5 0x40000095 #define HV_REGISTER_SINT6 0x40000096 #define HV_REGISTER_SINT7 0x40000097 #define HV_REGISTER_SINT8 0x40000098 #define HV_REGISTER_SINT9 0x40000099 #define HV_REGISTER_SINT10 0x4000009A #define HV_REGISTER_SINT11 0x4000009B #define HV_REGISTER_SINT12 0x4000009C #define HV_REGISTER_SINT13 0x4000009D #define HV_REGISTER_SINT14 0x4000009E #define HV_REGISTER_SINT15 0x4000009F /* * Synthetic Timer MSRs. Four timers per vcpu. */ #define HV_REGISTER_STIMER0_CONFIG 0x400000B0 #define HV_REGISTER_STIMER0_COUNT 0x400000B1 #define HV_REGISTER_STIMER1_CONFIG 0x400000B2 #define HV_REGISTER_STIMER1_COUNT 0x400000B3 #define HV_REGISTER_STIMER2_CONFIG 0x400000B4 #define HV_REGISTER_STIMER2_COUNT 0x400000B5 #define HV_REGISTER_STIMER3_CONFIG 0x400000B6 #define HV_REGISTER_STIMER3_COUNT 0x400000B7 /* Hyper-V guest idle MSR */ #define HV_X64_MSR_GUEST_IDLE 0x400000F0 /* Hyper-V guest crash notification MSR's */ #define HV_REGISTER_CRASH_P0 0x40000100 #define HV_REGISTER_CRASH_P1 0x40000101 #define HV_REGISTER_CRASH_P2 0x40000102 #define HV_REGISTER_CRASH_P3 0x40000103 #define HV_REGISTER_CRASH_P4 0x40000104 #define HV_REGISTER_CRASH_CTL 0x40000105 /* TSC emulation after migration */ #define HV_X64_MSR_REENLIGHTENMENT_CONTROL 0x40000106 #define HV_X64_MSR_TSC_EMULATION_CONTROL 0x40000107 #define HV_X64_MSR_TSC_EMULATION_STATUS 0x40000108 /* TSC invariant control */ #define HV_X64_MSR_TSC_INVARIANT_CONTROL 0x40000118 /* Register name aliases for temporary compatibility */ #define HV_X64_MSR_STIMER0_COUNT HV_REGISTER_STIMER0_COUNT #define HV_X64_MSR_STIMER0_CONFIG HV_REGISTER_STIMER0_CONFIG #define HV_X64_MSR_STIMER1_COUNT HV_REGISTER_STIMER1_COUNT #define HV_X64_MSR_STIMER1_CONFIG HV_REGISTER_STIMER1_CONFIG #define HV_X64_MSR_STIMER2_COUNT HV_REGISTER_STIMER2_COUNT #define HV_X64_MSR_STIMER2_CONFIG HV_REGISTER_STIMER2_CONFIG #define HV_X64_MSR_STIMER3_COUNT HV_REGISTER_STIMER3_COUNT #define HV_X64_MSR_STIMER3_CONFIG HV_REGISTER_STIMER3_CONFIG #define HV_X64_MSR_SCONTROL HV_REGISTER_SCONTROL #define HV_X64_MSR_SVERSION HV_REGISTER_SVERSION #define HV_X64_MSR_SIMP HV_REGISTER_SIMP #define HV_X64_MSR_SIEFP HV_REGISTER_SIEFP #define HV_X64_MSR_VP_INDEX HV_REGISTER_VP_INDEX #define HV_X64_MSR_EOM HV_REGISTER_EOM #define HV_X64_MSR_SINT0 HV_REGISTER_SINT0 #define HV_X64_MSR_SINT15 HV_REGISTER_SINT15 #define HV_X64_MSR_CRASH_P0 HV_REGISTER_CRASH_P0 #define HV_X64_MSR_CRASH_P1 HV_REGISTER_CRASH_P1 #define HV_X64_MSR_CRASH_P2 HV_REGISTER_CRASH_P2 #define HV_X64_MSR_CRASH_P3 HV_REGISTER_CRASH_P3 #define HV_X64_MSR_CRASH_P4 HV_REGISTER_CRASH_P4 #define HV_X64_MSR_CRASH_CTL HV_REGISTER_CRASH_CTL #define HV_X64_MSR_TIME_REF_COUNT HV_REGISTER_TIME_REF_COUNT #define HV_X64_MSR_REFERENCE_TSC HV_REGISTER_REFERENCE_TSC /* * Declare the MSR used to setup pages used to communicate with the hypervisor. */ union hv_x64_msr_hypercall_contents { u64 as_uint64; struct { u64 enable:1; u64 reserved:11; u64 guest_physical_address:52; } __packed; }; union hv_vp_assist_msr_contents { u64 as_uint64; struct { u64 enable:1; u64 reserved:11; u64 pfn:52; } __packed; }; struct hv_reenlightenment_control { __u64 vector:8; __u64 reserved1:8; __u64 enabled:1; __u64 reserved2:15; __u64 target_vp:32; } __packed; struct hv_tsc_emulation_control { __u64 enabled:1; __u64 reserved:63; } __packed; struct hv_tsc_emulation_status { __u64 inprogress:1; __u64 reserved:63; } __packed; #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)) #define HV_X64_MSR_CRASH_PARAMS \ (1 + (HV_X64_MSR_CRASH_P4 - HV_X64_MSR_CRASH_P0)) #define HV_IPI_LOW_VECTOR 0x10 #define HV_IPI_HIGH_VECTOR 0xff #define HV_X64_MSR_VP_ASSIST_PAGE_ENABLE 0x00000001 #define HV_X64_MSR_VP_ASSIST_PAGE_ADDRESS_SHIFT 12 #define HV_X64_MSR_VP_ASSIST_PAGE_ADDRESS_MASK \ (~((1ull << HV_X64_MSR_VP_ASSIST_PAGE_ADDRESS_SHIFT) - 1)) /* Hyper-V Enlightened VMCS version mask in nested features CPUID */ #define HV_X64_ENLIGHTENED_VMCS_VERSION 0xff #define HV_X64_MSR_TSC_REFERENCE_ENABLE 0x00000001 #define HV_X64_MSR_TSC_REFERENCE_ADDRESS_SHIFT 12 /* Number of XMM registers used in hypercall input/output */ #define HV_HYPERCALL_MAX_XMM_REGISTERS 6 struct hv_nested_enlightenments_control { struct { __u32 directhypercall:1; __u32 reserved:31; } features; struct { __u32 reserved; } hypercallControls; } __packed; /* Define virtual processor assist page structure. */ struct hv_vp_assist_page { __u32 apic_assist; __u32 reserved1; __u64 vtl_control[3]; struct hv_nested_enlightenments_control nested_control; __u8 enlighten_vmentry; __u8 reserved2[7]; __u64 current_nested_vmcs; } __packed; struct hv_enlightened_vmcs { u32 revision_id; u32 abort; u16 host_es_selector; u16 host_cs_selector; u16 host_ss_selector; u16 host_ds_selector; u16 host_fs_selector; u16 host_gs_selector; u16 host_tr_selector; u16 padding16_1; u64 host_ia32_pat; u64 host_ia32_efer; u64 host_cr0; u64 host_cr3; u64 host_cr4; u64 host_ia32_sysenter_esp; u64 host_ia32_sysenter_eip; u64 host_rip; u32 host_ia32_sysenter_cs; u32 pin_based_vm_exec_control; u32 vm_exit_controls; u32 secondary_vm_exec_control; u64 io_bitmap_a; u64 io_bitmap_b; u64 msr_bitmap; u16 guest_es_selector; u16 guest_cs_selector; u16 guest_ss_selector; u16 guest_ds_selector; u16 guest_fs_selector; u16 guest_gs_selector; u16 guest_ldtr_selector; u16 guest_tr_selector; u32 guest_es_limit; u32 guest_cs_limit; u32 guest_ss_limit; u32 guest_ds_limit; u32 guest_fs_limit; u32 guest_gs_limit; u32 guest_ldtr_limit; u32 guest_tr_limit; u32 guest_gdtr_limit; u32 guest_idtr_limit; u32 guest_es_ar_bytes; u32 guest_cs_ar_bytes; u32 guest_ss_ar_bytes; u32 guest_ds_ar_bytes; u32 guest_fs_ar_bytes; u32 guest_gs_ar_bytes; u32 guest_ldtr_ar_bytes; u32 guest_tr_ar_bytes; u64 guest_es_base; u64 guest_cs_base; u64 guest_ss_base; u64 guest_ds_base; u64 guest_fs_base; u64 guest_gs_base; u64 guest_ldtr_base; u64 guest_tr_base; u64 guest_gdtr_base; u64 guest_idtr_base; u64 padding64_1[3]; u64 vm_exit_msr_store_addr; u64 vm_exit_msr_load_addr; u64 vm_entry_msr_load_addr; u64 cr3_target_value0; u64 cr3_target_value1; u64 cr3_target_value2; u64 cr3_target_value3; u32 page_fault_error_code_mask; u32 page_fault_error_code_match; u32 cr3_target_count; u32 vm_exit_msr_store_count; u32 vm_exit_msr_load_count; u32 vm_entry_msr_load_count; u64 tsc_offset; u64 virtual_apic_page_addr; u64 vmcs_link_pointer; u64 guest_ia32_debugctl; u64 guest_ia32_pat; u64 guest_ia32_efer; u64 guest_pdptr0; u64 guest_pdptr1; u64 guest_pdptr2; u64 guest_pdptr3; u64 guest_pending_dbg_exceptions; u64 guest_sysenter_esp; u64 guest_sysenter_eip; u32 guest_activity_state; u32 guest_sysenter_cs; u64 cr0_guest_host_mask; u64 cr4_guest_host_mask; u64 cr0_read_shadow; u64 cr4_read_shadow; u64 guest_cr0; u64 guest_cr3; u64 guest_cr4; u64 guest_dr7; u64 host_fs_base; u64 host_gs_base; u64 host_tr_base; u64 host_gdtr_base; u64 host_idtr_base; u64 host_rsp; u64 ept_pointer; u16 virtual_processor_id; u16 padding16_2[3]; u64 padding64_2[5]; u64 guest_physical_address; u32 vm_instruction_error; u32 vm_exit_reason; u32 vm_exit_intr_info; u32 vm_exit_intr_error_code; u32 idt_vectoring_info_field; u32 idt_vectoring_error_code; u32 vm_exit_instruction_len; u32 vmx_instruction_info; u64 exit_qualification; u64 exit_io_instruction_ecx; u64 exit_io_instruction_esi; u64 exit_io_instruction_edi; u64 exit_io_instruction_eip; u64 guest_linear_address; u64 guest_rsp; u64 guest_rflags; u32 guest_interruptibility_info; u32 cpu_based_vm_exec_control; u32 exception_bitmap; u32 vm_entry_controls; u32 vm_entry_intr_info_field; u32 vm_entry_exception_error_code; u32 vm_entry_instruction_len; u32 tpr_threshold; u64 guest_rip; u32 hv_clean_fields; u32 hv_padding_32; u32 hv_synthetic_controls; struct { u32 nested_flush_hypercall:1; u32 msr_bitmap:1; u32 reserved:30; } __packed hv_enlightenments_control; u32 hv_vp_id; u64 hv_vm_id; u64 partition_assist_page; u64 padding64_4[4]; u64 guest_bndcfgs; u64 padding64_5[7]; u64 xss_exit_bitmap; u64 padding64_6[7]; } __packed; #define HV_VMX_ENLIGHTENED_CLEAN_FIELD_NONE 0 #define HV_VMX_ENLIGHTENED_CLEAN_FIELD_IO_BITMAP BIT(0) #define HV_VMX_ENLIGHTENED_CLEAN_FIELD_MSR_BITMAP BIT(1) #define HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_GRP2 BIT(2) #define HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_GRP1 BIT(3) #define HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_PROC BIT(4) #define HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_EVENT BIT(5) #define HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_ENTRY BIT(6) #define HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_EXCPN BIT(7) #define HV_VMX_ENLIGHTENED_CLEAN_FIELD_CRDR BIT(8) #define HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_XLAT BIT(9) #define HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_BASIC BIT(10) #define HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP1 BIT(11) #define HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2 BIT(12) #define HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_POINTER BIT(13) #define HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_GRP1 BIT(14) #define HV_VMX_ENLIGHTENED_CLEAN_FIELD_ENLIGHTENMENTSCONTROL BIT(15) #define HV_VMX_ENLIGHTENED_CLEAN_FIELD_ALL 0xFFFF struct hv_partition_assist_pg { u32 tlb_lock_count; }; enum hv_interrupt_type { HV_X64_INTERRUPT_TYPE_FIXED = 0x0000, HV_X64_INTERRUPT_TYPE_LOWESTPRIORITY = 0x0001, HV_X64_INTERRUPT_TYPE_SMI = 0x0002, HV_X64_INTERRUPT_TYPE_REMOTEREAD = 0x0003, HV_X64_INTERRUPT_TYPE_NMI = 0x0004, HV_X64_INTERRUPT_TYPE_INIT = 0x0005, HV_X64_INTERRUPT_TYPE_SIPI = 0x0006, HV_X64_INTERRUPT_TYPE_EXTINT = 0x0007, HV_X64_INTERRUPT_TYPE_LOCALINT0 = 0x0008, HV_X64_INTERRUPT_TYPE_LOCALINT1 = 0x0009, HV_X64_INTERRUPT_TYPE_MAXIMUM = 0x000A, }; #include #endif