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Diffstat (limited to 'include/hw/hyperv/hvhdk.h')
| -rw-r--r-- | include/hw/hyperv/hvhdk.h | 249 |
1 files changed, 249 insertions, 0 deletions
diff --git a/include/hw/hyperv/hvhdk.h b/include/hw/hyperv/hvhdk.h new file mode 100644 index 0000000..866c821 --- /dev/null +++ b/include/hw/hyperv/hvhdk.h @@ -0,0 +1,249 @@ +/* + * Type definitions for the mshv host. + * + * Copyright Microsoft, Corp. 2025 + * + * SPDX-License-Identifier: GPL-2.0-or-later + */ + +#ifndef HW_HYPERV_HVHDK_H +#define HW_HYPERV_HVHDK_H + +#define HV_PARTITION_SYNTHETIC_PROCESSOR_FEATURES_BANKS 1 + +struct hv_input_set_partition_property { + uint64_t partition_id; + uint32_t property_code; /* enum hv_partition_property_code */ + uint32_t padding; + uint64_t property_value; +}; + +union hv_partition_synthetic_processor_features { + uint64_t as_uint64[HV_PARTITION_SYNTHETIC_PROCESSOR_FEATURES_BANKS]; + + struct { + /* + * Report a hypervisor is present. CPUID leaves + * 0x40000000 and 0x40000001 are supported. + */ + uint64_t hypervisor_present:1; + + /* + * Features associated with HV#1: + */ + + /* Report support for Hv1 (CPUID leaves 0x40000000 - 0x40000006). */ + uint64_t hv1:1; + + /* + * Access to HV_X64_MSR_VP_RUNTIME. + * Corresponds to access_vp_run_time_reg privilege. + */ + uint64_t access_vp_run_time_reg:1; + + /* + * Access to HV_X64_MSR_TIME_REF_COUNT. + * Corresponds to access_partition_reference_counter privilege. + */ + uint64_t access_partition_reference_counter:1; + + /* + * Access to SINT-related registers (HV_X64_MSR_SCONTROL through + * HV_X64_MSR_EOM and HV_X64_MSR_SINT0 through HV_X64_MSR_SINT15). + * Corresponds to access_synic_regs privilege. + */ + uint64_t access_synic_regs:1; + + /* + * Access to synthetic timers and associated MSRs + * (HV_X64_MSR_STIMER0_CONFIG through HV_X64_MSR_STIMER3_COUNT). + * Corresponds to access_synthetic_timer_regs privilege. + */ + uint64_t access_synthetic_timer_regs:1; + + /* + * Access to APIC MSRs (HV_X64_MSR_EOI, HV_X64_MSR_ICR and + * HV_X64_MSR_TPR) as well as the VP assist page. + * Corresponds to access_intr_ctrl_regs privilege. + */ + uint64_t access_intr_ctrl_regs:1; + + /* + * Access to registers associated with hypercalls + * (HV_X64_MSR_GUEST_OS_ID and HV_X64_MSR_HYPERCALL). + * Corresponds to access_hypercall_msrs privilege. + */ + uint64_t access_hypercall_regs:1; + + /* VP index can be queried. corresponds to access_vp_index privilege. */ + uint64_t access_vp_index:1; + + /* + * Access to the reference TSC. Corresponds to + * access_partition_reference_tsc privilege. + */ + uint64_t access_partition_reference_tsc:1; + + /* + * Partition has access to the guest idle reg. Corresponds to + * access_guest_idle_reg privilege. + */ + uint64_t access_guest_idle_reg:1; + + /* + * Partition has access to frequency regs. corresponds to + * access_frequency_regs privilege. + */ + uint64_t access_frequency_regs:1; + + uint64_t reserved_z12:1; /* Reserved for access_reenlightenment_controls */ + uint64_t reserved_z13:1; /* Reserved for access_root_scheduler_reg */ + uint64_t reserved_z14:1; /* Reserved for access_tsc_invariant_controls */ + + /* + * Extended GVA ranges for HvCallFlushVirtualAddressList hypercall. + * Corresponds to privilege. + */ + uint64_t enable_extended_gva_ranges_for_flush_virtual_address_list:1; + + uint64_t reserved_z16:1; /* Reserved for access_vsm. */ + uint64_t reserved_z17:1; /* Reserved for access_vp_registers. */ + + /* Use fast hypercall output. Corresponds to privilege. */ + uint64_t fast_hypercall_output:1; + + uint64_t reserved_z19:1; /* Reserved for enable_extended_hypercalls. */ + + /* + * HvStartVirtualProcessor can be used to start virtual processors. + * Corresponds to privilege. + */ + uint64_t start_virtual_processor:1; + + uint64_t reserved_z21:1; /* Reserved for Isolation. */ + + /* Synthetic timers in direct mode. */ + uint64_t direct_synthetic_timers:1; + + uint64_t reserved_z23:1; /* Reserved for synthetic time unhalted timer */ + + /* Use extended processor masks. */ + uint64_t extended_processor_masks:1; + + /* + * HvCallFlushVirtualAddressSpace / HvCallFlushVirtualAddressList are + * supported. + */ + uint64_t tb_flush_hypercalls:1; + + /* HvCallSendSyntheticClusterIpi is supported. */ + uint64_t synthetic_cluster_ipi:1; + + /* HvCallNotifyLongSpinWait is supported. */ + uint64_t notify_long_spin_wait:1; + + /* HvCallQueryNumaDistance is supported. */ + uint64_t query_numa_distance:1; + + /* HvCallSignalEvent is supported. Corresponds to privilege. */ + uint64_t signal_events:1; + + /* HvCallRetargetDeviceInterrupt is supported. */ + uint64_t retarget_device_interrupt:1; + + /* HvCallRestorePartitionTime is supported. */ + uint64_t restore_time:1; + + /* EnlightenedVmcs nested enlightenment is supported. */ + uint64_t enlightened_vmcs:1; + + uint64_t reserved:30; + }; +}; + +enum hv_translate_gva_result_code { + HV_TRANSLATE_GVA_SUCCESS = 0, + + /* Translation failures. */ + HV_TRANSLATE_GVA_PAGE_NOT_PRESENT = 1, + HV_TRANSLATE_GVA_PRIVILEGE_VIOLATION = 2, + HV_TRANSLATE_GVA_INVALIDE_PAGE_TABLE_FLAGS = 3, + + /* GPA access failures. */ + HV_TRANSLATE_GVA_GPA_UNMAPPED = 4, + HV_TRANSLATE_GVA_GPA_NO_READ_ACCESS = 5, + HV_TRANSLATE_GVA_GPA_NO_WRITE_ACCESS = 6, + HV_TRANSLATE_GVA_GPA_ILLEGAL_OVERLAY_ACCESS = 7, + + /* + * Intercept for memory access by either + * - a higher VTL + * - a nested hypervisor (due to a violation of the nested page table) + */ + HV_TRANSLATE_GVA_INTERCEPT = 8, + + HV_TRANSLATE_GVA_GPA_UNACCEPTED = 9, +}; + +union hv_translate_gva_result { + uint64_t as_uint64; + struct { + uint32_t result_code; /* enum hv_translate_hva_result_code */ + uint32_t cache_type:8; + uint32_t overlay_page:1; + uint32_t reserved:23; + }; +}; + +typedef struct hv_input_translate_virtual_address { + uint64_t partition_id; + uint32_t vp_index; + uint32_t padding; + uint64_t control_flags; + uint64_t gva_page; +} hv_input_translate_virtual_address; + +typedef struct hv_output_translate_virtual_address { + union hv_translate_gva_result translation_result; + uint64_t gpa_page; +} hv_output_translate_virtual_address; + +typedef struct hv_register_x64_cpuid_result_parameters { + struct { + uint32_t eax; + uint32_t ecx; + uint8_t subleaf_specific; + uint8_t always_override; + uint16_t padding; + } input; + struct { + uint32_t eax; + uint32_t eax_mask; + uint32_t ebx; + uint32_t ebx_mask; + uint32_t ecx; + uint32_t ecx_mask; + uint32_t edx; + uint32_t edx_mask; + } result; +} hv_register_x64_cpuid_result_parameters; + +typedef struct hv_register_x64_msr_result_parameters { + uint32_t msr_index; + uint32_t access_type; + uint32_t action; /* enum hv_unimplemented_msr_action */ +} hv_register_x64_msr_result_parameters; + +union hv_register_intercept_result_parameters { + struct hv_register_x64_cpuid_result_parameters cpuid; + struct hv_register_x64_msr_result_parameters msr; +}; + +typedef struct hv_input_register_intercept_result { + uint64_t partition_id; + uint32_t vp_index; + uint32_t intercept_type; /* enum hv_intercept_type */ + union hv_register_intercept_result_parameters parameters; +} hv_input_register_intercept_result; + +#endif /* HW_HYPERV_HVHDK_H */ |