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hvhdk.h
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/* SPDX-License-Identifier: MIT */
/*
* Copyright (c) 2023, Microsoft Corporation.
*
* These files (hvhdk.h, hvhdk_mini.h, hvgdk.h, hvgdk_mini.h) define APIs for
* communicating with the Microsoft Hypervisor.
*
* These definitions are subject to change across hypervisor versions, and as
* such are separate and independent from hyperv-tlfs.h.
*
* The naming of these headers reflects conventions used in the Microsoft
* Hypervisor.
*/
#ifndef _UAPI_HV_HVHDK_H
#define _UAPI_HV_HVHDK_H
#include "hvhdk_mini.h"
#include "hvgdk.h"
/* Bits for dirty mask of hv_vp_register_page */
#define HV_X64_REGISTER_CLASS_GENERAL 0
#define HV_X64_REGISTER_CLASS_IP 1
#define HV_X64_REGISTER_CLASS_XMM 2
#define HV_X64_REGISTER_CLASS_SEGMENT 3
#define HV_X64_REGISTER_CLASS_FLAGS 4
#define HV_VP_REGISTER_PAGE_VERSION_1 1u
struct hv_vp_register_page {
__u16 version;
__u8 isvalid;
__u8 rsvdz;
__u32 dirty;
union {
struct {
/* General purpose registers
* (HV_X64_REGISTER_CLASS_GENERAL)
*/
union {
struct {
__u64 rax;
__u64 rcx;
__u64 rdx;
__u64 rbx;
__u64 rsp;
__u64 rbp;
__u64 rsi;
__u64 rdi;
__u64 r8;
__u64 r9;
__u64 r10;
__u64 r11;
__u64 r12;
__u64 r13;
__u64 r14;
__u64 r15;
} __packed;
__u64 gp_registers[16];
};
/* Instruction pointer (HV_X64_REGISTER_CLASS_IP) */
__u64 rip;
/* Flags (HV_X64_REGISTER_CLASS_FLAGS) */
__u64 rflags;
} __packed;
__u64 registers[18];
};
/* Volatile XMM registers (HV_X64_REGISTER_CLASS_XMM) */
union {
struct {
struct hv_u128 xmm0;
struct hv_u128 xmm1;
struct hv_u128 xmm2;
struct hv_u128 xmm3;
struct hv_u128 xmm4;
struct hv_u128 xmm5;
} __packed;
struct hv_u128 xmm_registers[6];
};
/* Segment registers (HV_X64_REGISTER_CLASS_SEGMENT) */
union {
struct {
struct hv_x64_segment_register es;
struct hv_x64_segment_register cs;
struct hv_x64_segment_register ss;
struct hv_x64_segment_register ds;
struct hv_x64_segment_register fs;
struct hv_x64_segment_register gs;
} __packed;
struct hv_x64_segment_register segment_registers[6];
};
/* Misc. control registers (cannot be set via this interface) */
__u64 cr0;
__u64 cr3;
__u64 cr4;
__u64 cr8;
__u64 efer;
__u64 dr7;
union hv_x64_pending_interruption_register pending_interruption;
union hv_x64_interrupt_state_register interrupt_state;
__u64 instruction_emulation_hints;
} __packed;
#define HV_PARTITION_PROCESSOR_FEATURES_BANKS 2
union hv_partition_processor_features {
__u64 as_uint64[HV_PARTITION_PROCESSOR_FEATURES_BANKS];
struct {
__u64 sse3_support:1;
__u64 lahf_sahf_support:1;
__u64 ssse3_support:1;
__u64 sse4_1_support:1;
__u64 sse4_2_support:1;
__u64 sse4a_support:1;
__u64 xop_support:1;
__u64 pop_cnt_support:1;
__u64 cmpxchg16b_support:1;
__u64 altmovcr8_support:1;
__u64 lzcnt_support:1;
__u64 mis_align_sse_support:1;
__u64 mmx_ext_support:1;
__u64 amd3dnow_support:1;
__u64 extended_amd3dnow_support:1;
__u64 page_1gb_support:1;
__u64 aes_support:1;
__u64 pclmulqdq_support:1;
__u64 pcid_support:1;
__u64 fma4_support:1;
__u64 f16c_support:1;
__u64 rd_rand_support:1;
__u64 rd_wr_fs_gs_support:1;
__u64 smep_support:1;
__u64 enhanced_fast_string_support:1;
__u64 bmi1_support:1;
__u64 bmi2_support:1;
__u64 hle_support_deprecated:1;
__u64 rtm_support_deprecated:1;
__u64 movbe_support:1;
__u64 npiep1_support:1;
__u64 dep_x87_fpu_save_support:1;
__u64 rd_seed_support:1;
__u64 adx_support:1;
__u64 intel_prefetch_support:1;
__u64 smap_support:1;
__u64 hle_support:1;
__u64 rtm_support:1;
__u64 rdtscp_support:1;
__u64 clflushopt_support:1;
__u64 clwb_support:1;
__u64 sha_support:1;
__u64 x87_pointers_saved_support:1;
__u64 invpcid_support:1;
__u64 ibrs_support:1;
__u64 stibp_support:1;
__u64 ibpb_support: 1;
__u64 unrestricted_guest_support:1;
__u64 mdd_support:1;
__u64 fast_short_rep_mov_support:1;
__u64 l1dcache_flush_support:1;
__u64 rdcl_no_support:1;
__u64 ibrs_all_support:1;
__u64 skip_l1df_support:1;
__u64 ssb_no_support:1;
__u64 rsb_a_no_support:1;
__u64 virt_spec_ctrl_support:1;
__u64 rd_pid_support:1;
__u64 umip_support:1;
__u64 mbs_no_support:1;
__u64 mb_clear_support:1;
__u64 taa_no_support:1;
__u64 tsx_ctrl_support:1;
/*
* N.B. The final processor feature bit in bank 0 is reserved to
* simplify potential downlevel backports.
*/
__u64 reserved_bank0:1;
/* N.B. Begin bank 1 processor features. */
__u64 acount_mcount_support:1;
__u64 tsc_invariant_support:1;
__u64 cl_zero_support:1;
__u64 rdpru_support:1;
__u64 la57_support:1;
__u64 mbec_support:1;
__u64 nested_virt_support:1;
__u64 psfd_support:1;
__u64 cet_ss_support:1;
__u64 cet_ibt_support:1;
__u64 vmx_exception_inject_support:1;
__u64 enqcmd_support:1;
__u64 umwait_tpause_support:1;
__u64 movdiri_support:1;
__u64 movdir64b_support:1;
__u64 cldemote_support:1;
__u64 serialize_support:1;
__u64 tsc_deadline_tmr_support:1;
__u64 tsc_adjust_support:1;
__u64 fzlrep_movsb:1;
__u64 fsrep_stosb:1;
__u64 fsrep_cmpsb:1;
__u64 reserved_bank1:42;
} __packed;
};
union hv_partition_processor_xsave_features {
struct {
__u64 xsave_support : 1;
__u64 xsaveopt_support : 1;
__u64 avx_support : 1;
__u64 reserved1 : 61;
} __packed;
__u64 as_uint64;
};
struct hv_partition_creation_properties {
union hv_partition_processor_features disabled_processor_features;
union hv_partition_processor_xsave_features
disabled_processor_xsave_features;
} __packed;
/*
* Definition of the partition isolation state. Used for
* HV_PARTITION_PROPERTY_ISOLATION_STATE.
*
*
* The isolation states (hv_partition_isolation_state) are sub-states of
* ObPartitionActive that apply to VBS and hardware isolated partitions.
* For VBS isolation, the trusted host VTL 1 component uses the isolation
* state to establish a binding between a hypervisor partition and its
* own partition context, and to enforce certain invariants.
*
* Hardware-isolated partitions (including partitions that simulate
* hardware isolation) also use isolation states to track the progression
* of the partition security state through the architectural state machine.
* Insecure states indicate that there is no architectural state
* associated with the partition, and Secure indicates that the partition
* has secure architectural state.
*
* ObPartitionRestoring is treated differently for isolated partitions.
* Only the trusted host component is allowed to restore partition state,
* and ObPartitionRestoring can only transition directly to/from secure.
*
*
* ..................................................................
* . UNINITIALIZED FINALIZED .
* . | ^ ^ .
* . Initialize | / \ .
* . | / \ .
* . --------------|--------/--- ACTIVE --\------------------------ .
* . | | / \ | .
* . | | / Finalize \ Finalize | .
* . | v / \ | .
* . | INSECURE-CLEAN <---------------- INSECURE-DIRTY | .
* . | \ Scrub ^ | .
* . | \ / | .
* . | \ / | .
* . | Secure \ / Unsecure | .
* . | \ / | .
* . | \ / | .
* . | v / | .
* . | SECURE | .
* . | ^ | .
* . |_____________________________|______________________________| .
* . | .
* . v .
* . RESTORING .
* ..................................................................
*/
enum hv_partition_isolation_state {
/*
* Initial and final state for all non-isolated partitions.
*/
HV_PARTITION_ISOLATION_INVALID = 0,
/*
* An "Insecure" partition is not being used by the trusted host
* component. In this state, VPs can be created and deleted. VPs cannot
* be started, and VP registers cannot be modified.
* Initial state of an isolated partition as result of Initialize or
* Scrub hypercalls. Guest-visible partition and VP state is considered
* "clean", in the sense that a call to ObScrubPartition should not
* result in any changes. Also, there are no accepted or confidential
* pages assigned to the partition. InsecureRundown is enabled.
*/
HV_PARTITION_ISOLATION_INSECURE_CLEAN = 1,
/*
* Guest-visible partition and VP state is not "clean". Hence it must
* be scrubbed first. One of 2 explicit states the trusted host
* component can request. It cannot transition the state to Secure. In
* this state,
* - IsolationControl is clear.
* - Secure rundowns are completely disabled.
* - No assigned pages exist.
*/
HV_PARTITION_ISOLATION_INSECURE_DIRTY = 2,
/*
* The partition is being used by the trusted host component (and is
* typically bound to a single partition context in that component).
* One of 2 explicit states the trusted host component can request. In
* this state,
* - VPs cannot be created or deleted.
* - Partition cannot be finalized, scrubbed.
* - Insecure rundowns are completely disabled.
*/
HV_PARTITION_ISOLATION_SECURE = 3,
/*
* Represents a failed attempt to transition to Secure state. Partition
* in this state cannot be finalized, scrubbed since one or more pages
* may be assigned.
*/
HV_PARTITION_ISOLATION_SECURE_DIRTY = 4,
/*
* An internal state indicating that a partition is in the process of
* transitioning from Secure to InsecureDirty.
*/
HV_PARTITION_ISOLATION_SECURE_TERMINATING = 5,
};
#define HV_PARTITION_SYNTHETIC_PROCESSOR_FEATURES_BANKS 1
union hv_partition_synthetic_processor_features {
__u64 as_uint64[HV_PARTITION_SYNTHETIC_PROCESSOR_FEATURES_BANKS];
struct {
/* Report a hypervisor is present. CPUID leaves
* 0x40000000 and 0x40000001 are supported.
*/
__u64 hypervisor_present:1;
/*
* Features associated with HV#1:
*/
/* Report support for Hv1 (CPUID leaves 0x40000000 - 0x40000006). */
__u64 hv1:1;
/* Access to HV_X64_MSR_VP_RUNTIME.
* Corresponds to access_vp_run_time_reg privilege.
*/
__u64 access_vp_run_time_reg:1;
/* Access to HV_X64_MSR_TIME_REF_COUNT.
* Corresponds to access_partition_reference_counter privilege.
*/
__u64 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.
*/
__u64 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.
*/
__u64 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.
*/
__u64 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.
*/
__u64 access_hypercall_regs:1;
/* VP index can be queried. corresponds to access_vp_index privilege. */
__u64 access_vp_index:1;
/* Access to the reference TSC. Corresponds to access_partition_reference_tsc
* privilege.
*/
__u64 access_partition_reference_tsc:1;
/* Partition has access to the guest idle reg. Corresponds to
* access_guest_idle_reg privilege.
*/
__u64 access_guest_idle_reg:1;
/* Partition has access to frequency regs. corresponds to access_frequency_regs
* privilege.
*/
__u64 access_frequency_regs:1;
__u64 reserved_z12:1; /* Reserved for access_reenlightenment_controls. */
__u64 reserved_z13:1; /* Reserved for access_root_scheduler_reg. */
__u64 reserved_z14:1; /* Reserved for access_tsc_invariant_controls. */
/* Extended GVA ranges for HvCallFlushVirtualAddressList hypercall.
* Corresponds to privilege.
*/
__u64 enable_extended_gva_ranges_for_flush_virtual_address_list:1;
__u64 reserved_z16:1; /* Reserved for access_vsm. */
__u64 reserved_z17:1; /* Reserved for access_vp_registers. */
/* Use fast hypercall output. Corresponds to privilege. */
__u64 fast_hypercall_output:1;
__u64 reserved_z19:1; /* Reserved for enable_extended_hypercalls. */
/*
* HvStartVirtualProcessor can be used to start virtual processors.
* Corresponds to privilege.
*/
__u64 start_virtual_processor:1;
__u64 reserved_z21:1; /* Reserved for Isolation. */
/* Synthetic timers in direct mode. */
__u64 direct_synthetic_timers:1;
__u64 reserved_z23:1; /* Reserved for synthetic time unhalted timer */
/* Use extended processor masks. */
__u64 extended_processor_masks:1;
/* HvCallFlushVirtualAddressSpace / HvCallFlushVirtualAddressList are supported. */
__u64 tb_flush_hypercalls:1;
/* HvCallSendSyntheticClusterIpi is supported. */
__u64 synthetic_cluster_ipi:1;
/* HvCallNotifyLongSpinWait is supported. */
__u64 notify_long_spin_wait:1;
/* HvCallQueryNumaDistance is supported. */
__u64 query_numa_distance:1;
/* HvCallSignalEvent is supported. Corresponds to privilege. */
__u64 signal_events:1;
/* HvCallRetargetDeviceInterrupt is supported. */
__u64 retarget_device_interrupt:1;
/* HvCallRestorePartitionTime is supported. */
__u64 restore_time:1;
/* EnlightenedVmcs nested enlightenment is supported. */
__u64 enlightened_vmcs:1;
__u64 reserved:31;
} __packed;
};
#define HV_MAKE_COMPATIBILITY_VERSION(major_, minor_) \
((__u32)((major_) << 8 | (minor_)))
#define HV_COMPATIBILITY_21_H2 HV_MAKE_COMPATIBILITY_VERSION(0X6, 0X9)
union hv_partition_isolation_properties {
__u64 as_uint64;
struct {
__u64 isolation_type: 5;
__u64 isolation_host_type : 2;
__u64 rsvd_z: 5;
__u64 shared_gpa_boundary_page_number: 52;
} __packed;
};
/*
* Various isolation types supported by MSHV.
*/
#define HV_PARTITION_ISOLATION_TYPE_NONE 0
#define HV_PARTITION_ISOLATION_TYPE_SNP 2
#define HV_PARTITION_ISOLATION_TYPE_TDX 3
/*
* Various host isolation types supported by MSHV.
*/
#define HV_PARTITION_ISOLATION_HOST_TYPE_NONE 0x0
#define HV_PARTITION_ISOLATION_HOST_TYPE_HARDWARE 0x1
#define HV_PARTITION_ISOLATION_HOST_TYPE_RESERVED 0x2
/* Note: Exo partition is enabled by default */
#define HV_PARTITION_CREATION_FLAG_EXO_PARTITION (1 << 8)
#define HV_PARTITION_CREATION_FLAG_LAPIC_ENABLED (1 << 13)
#define HV_PARTITION_CREATION_FLAG_INTERCEPT_MESSAGE_PAGE_ENABLED (1 << 19)
#define HV_PARTITION_CREATION_FLAG_X2APIC_CAPABLE (1 << 22)
struct hv_input_create_partition {
__u64 flags;
struct hv_proximity_domain_info proximity_domain_info;
__u32 compatibility_version;
__u32 padding;
struct hv_partition_creation_properties partition_creation_properties;
union hv_partition_isolation_properties isolation_properties;
} __packed;
struct hv_output_create_partition {
__u64 partition_id;
} __packed;
struct hv_input_initialize_partition {
__u64 partition_id;
} __packed;
struct hv_input_finalize_partition {
__u64 partition_id;
} __packed;
struct hv_input_delete_partition {
__u64 partition_id;
} __packed;
struct hv_input_get_partition_property {
__u64 partition_id;
__u32 property_code; /* enum hv_partition_property_code */
__u32 padding;
} __packed;
struct hv_output_get_partition_property {
__u64 property_value;
} __packed;
struct hv_input_set_partition_property {
__u64 partition_id;
__u32 property_code; /* enum hv_partition_property_code */
__u32 padding;
__u64 property_value;
} __packed;
enum hv_vp_state_page_type {
HV_VP_STATE_PAGE_REGISTERS = 0,
HV_VP_STATE_PAGE_INTERCEPT_MESSAGE = 1,
HV_VP_STATE_PAGE_COUNT
};
struct hv_input_map_vp_state_page {
__u64 partition_id;
__u32 vp_index;
__u32 type; /* enum hv_vp_state_page_type */
} __packed;
struct hv_output_map_vp_state_page {
__u64 map_location; /* GPA page number */
} __packed;
struct hv_input_unmap_vp_state_page {
__u64 partition_id;
__u32 vp_index;
__u32 type; /* enum hv_vp_state_page_type */
} __packed;
struct hv_cpuid_leaf_info {
__u32 eax;
__u32 ecx;
__u64 xfem;
__u64 xss;
} __packed;
union hv_get_vp_cpuid_values_flags {
__u32 as_uint32;
struct {
__u32 use_vp_xfem_xss: 1;
__u32 apply_registered_values: 1;
__u32 reserved: 30;
} __packed;
} __packed;
struct hv_input_get_vp_cpuid_values {
__u64 partition_id;
__u32 vp_index;
union hv_get_vp_cpuid_values_flags flags;
__u32 reserved;
__u32 padding;
struct hv_cpuid_leaf_info cpuid_leaf_info[];
} __packed;
// NOTE: Not in hvhdk headers
union hv_output_get_vp_cpuid_values {
__u32 as_uint32[4];
struct {
__u32 eax;
__u32 ebx;
__u32 ecx;
__u32 edx;
} __packed;
};
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_INVALID_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 {
__u64 as_uint64;
struct {
__u32 result_code; /* enum hv_translate_hva_result_code */
__u32 cache_type : 8;
__u32 overlay_page : 1;
__u32 reserved : 23;
} __packed;
};
/* Define synthetic interrupt controller flag constants. */
#define HV_EVENT_FLAGS_COUNT (256 * 8)
#define HV_EVENT_FLAGS_BYTE_COUNT (256)
#define HV_EVENT_FLAGS_LONG_COUNT (256 / sizeof(__u32))
struct hv_x64_apic_eoi_message {
__u32 vp_index;
__u32 interrupt_vector;
} __packed;
struct hv_opaque_intercept_message {
__u32 vp_index;
} __packed;
enum hv_port_type {
HV_PORT_TYPE_MESSAGE = 1,
HV_PORT_TYPE_EVENT = 2,
HV_PORT_TYPE_MONITOR = 3,
HV_PORT_TYPE_DOORBELL = 4 /* Root Partition only */
};
struct hv_port_info {
__u32 port_type; /* enum hv_port_type */
__u32 padding;
union {
struct {
__u32 target_sint;
__u32 target_vp;
__u64 rsvdz;
} message_port_info;
struct {
__u32 target_sint;
__u32 target_vp;
__u16 base_flag_number;
__u16 flag_count;
__u32 rsvdz;
} event_port_info;
struct {
__u64 monitor_address;
__u64 rsvdz;
} monitor_port_info;
struct {
__u32 target_sint;
__u32 target_vp;
__u64 rsvdz;
} doorbell_port_info;
};
} __packed;
struct hv_connection_info {
__u32 port_type;
__u32 padding;
union {
struct {
__u64 rsvdz;
} message_connection_info;
struct {
__u64 rsvdz;
} event_connection_info;
struct {
__u64 monitor_address;
} monitor_connection_info;
struct {
__u64 gpa;
__u64 trigger_value;
__u64 flags;
} doorbell_connection_info;
};
} __packed;
/* Define the synthetic interrupt controller event flags format. */
union hv_synic_event_flags {
unsigned char flags8[HV_EVENT_FLAGS_BYTE_COUNT];
unsigned long flags[HV_EVENT_FLAGS_LONG_COUNT];
};
struct hv_synic_event_flags_page {
union hv_synic_event_flags event_flags[HV_SYNIC_SINT_COUNT];
};
#define HV_SYNIC_EVENT_RING_MESSAGE_COUNT 63
struct hv_synic_event_ring {
__u8 signal_masked;
__u8 ring_full;
__u16 reserved_z;
__u32 data[HV_SYNIC_EVENT_RING_MESSAGE_COUNT];
} __packed;
struct hv_synic_event_ring_page {
struct hv_synic_event_ring sint_event_ring[HV_SYNIC_SINT_COUNT];
};
union hv_synic_scontrol {
__u64 as_uint64;
struct {
__u64 enable:1;
__u64 reserved:63;
} __packed;
};
union hv_synic_siefp {
__u64 as_uint64;
struct {
__u64 siefp_enabled:1;
__u64 preserved:11;
__u64 base_siefp_gpa:52;
} __packed;
};
union hv_synic_sirbp {
__u64 as_uint64;
struct {
__u64 sirbp_enabled:1;
__u64 preserved:11;
__u64 base_sirbp_gpa:52;
} __packed;
};
union hv_interrupt_control {
__u64 as_uint64;
struct {
__u32 interrupt_type; /* enum hv_interrupt type */
__u32 level_triggered : 1;
__u32 logical_dest_mode : 1;
__u32 rsvd : 30;
} __packed;
};
struct hv_local_interrupt_controller_state {
/* HV_X64_INTERRUPT_CONTROLLER_STATE */
__u32 apic_id;
__u32 apic_version;
__u32 apic_ldr;
__u32 apic_dfr;
__u32 apic_spurious;
__u32 apic_isr[8];
__u32 apic_tmr[8];
__u32 apic_irr[8];
__u32 apic_esr;
__u32 apic_icr_high;
__u32 apic_icr_low;
__u32 apic_lvt_timer;
__u32 apic_lvt_thermal;
__u32 apic_lvt_perfmon;
__u32 apic_lvt_lint0;
__u32 apic_lvt_lint1;
__u32 apic_lvt_error;
__u32 apic_lvt_cmci;
__u32 apic_error_status;
__u32 apic_initial_count;
__u32 apic_counter_value;
__u32 apic_divide_configuration;
__u32 apic_remote_read;
} __packed;
struct hv_stimer_state {
struct {
/*
* Indicates if there is an undelivered timer expiry message.
*/
__u32 undelivered_msg_pending:1;
__u32 reserved:31;
} __packed flags;
__u32 resvd;
/* Timer configuration and count. */
__u64 config;
__u64 count;
/* Timer adjustment. */
__u64 adjustment;
/* Expiration time of the undelivered message. */
__u64 undelivered_exp_time;
} __packed;
struct hv_synthetic_timers_state {
struct hv_stimer_state timers[HV_SYNIC_STIMER_COUNT];
/* Reserved space for time unhalted timer. */
__u64 reserved[5];
} __packed;
union hv_x64_vp_execution_state {
__u16 as_uint16;
struct {
__u16 cpl:2;
__u16 cr0_pe:1;
__u16 cr0_am:1;
__u16 efer_lma:1;
__u16 debug_active:1;
__u16 interruption_pending:1;
__u16 vtl:4;
__u16 enclave_mode:1;
__u16 interrupt_shadow:1;
__u16 virtualization_fault_active:1;
__u16 reserved:2;
} __packed;
};
struct hv_x64_intercept_message_header {
__u32 vp_index;
__u8 instruction_length:4;
__u8 cr8:4; /* Only set for exo partitions */
__u8 intercept_access_type;
union hv_x64_vp_execution_state execution_state;
struct hv_x64_segment_register cs_segment;
__u64 rip;
__u64 rflags;
} __packed;
#define HV_HYPERCALL_INTERCEPT_MAX_XMM_REGISTERS 6
struct hv_x64_hypercall_intercept_message {
struct hv_x64_intercept_message_header header;
__u64 rax;
__u64 rbx;
__u64 rcx;
__u64 rdx;
__u64 r8;
__u64 rsi;
__u64 rdi;
struct hv_u128 xmmregisters[HV_HYPERCALL_INTERCEPT_MAX_XMM_REGISTERS];
struct {
__u32 isolated:1;
__u32 reserved:31;
} __packed;
} __packed;
union hv_x64_register_access_info {
union hv_register_value source_value;
__u32 destination_register;
__u64 source_address;
__u64 destination_address;
};
struct hv_x64_register_intercept_message {
struct hv_x64_intercept_message_header header;
struct {
__u8 is_memory_op:1;
__u8 reserved:7;
} __packed;
__u8 reserved8;
__u16 reserved16;
__u32 register_name;
union hv_x64_register_access_info access_info;
} __packed;
union hv_x64_memory_access_info {
__u8 as_uint8;
struct {
__u8 gva_valid:1;
__u8 gva_gpa_valid:1;
__u8 hypercall_output_pending:1;
__u8 tlb_locked_no_overlay:1;
__u8 reserved:4;
} __packed;
};
union hv_x64_io_port_access_info {
__u8 as_uint8;
struct {
__u8 access_size:3;
__u8 string_op:1;
__u8 rep_prefix:1;
__u8 reserved:3;
} __packed;
};
union hv_x64_exception_info {
__u8 as_uint8;
struct {
__u8 error_code_valid:1;
__u8 software_exception:1;
__u8 reserved:6;
} __packed;
};
struct hv_x64_memory_intercept_message {
struct hv_x64_intercept_message_header header;
__u32 cache_type; /* enum hv_cache_type */
__u8 instruction_byte_count;
union hv_x64_memory_access_info memory_access_info;
__u8 tpr_priority;
__u8 reserved1;
__u64 guest_virtual_address;
__u64 guest_physical_address;
__u8 instruction_bytes[16];
} __packed;
struct hv_x64_cpuid_intercept_message {
struct hv_x64_intercept_message_header header;
__u64 rax;
__u64 rcx;
__u64 rdx;
__u64 rbx;
__u64 default_result_rax;
__u64 default_result_rcx;
__u64 default_result_rdx;
__u64 default_result_rbx;
} __packed;
struct hv_x64_msr_intercept_message {
struct hv_x64_intercept_message_header header;
__u32 msr_number;
__u32 reserved;
__u64 rdx;
__u64 rax;
} __packed;
struct hv_x64_io_port_intercept_message {
struct hv_x64_intercept_message_header header;
__u16 port_number;
union hv_x64_io_port_access_info access_info;
__u8 instruction_byte_count;
__u32 reserved;
__u64 rax;
__u8 instruction_bytes[16];
struct hv_x64_segment_register ds_segment;
struct hv_x64_segment_register es_segment;
__u64 rcx;
__u64 rsi;
__u64 rdi;
} __packed;
struct hv_x64_exception_intercept_message {
struct hv_x64_intercept_message_header header;
__u16 exception_vector;
union hv_x64_exception_info exception_info;
__u8 instruction_byte_count;
__u32 error_code;
__u64 exception_parameter;
__u64 reserved;
__u8 instruction_bytes[16];
struct hv_x64_segment_register ds_segment;
struct hv_x64_segment_register ss_segment;
__u64 rax;
__u64 rcx;
__u64 rdx;
__u64 rbx;
__u64 rsp;
__u64 rbp;
__u64 rsi;
__u64 rdi;
__u64 r8;
__u64 r9;
__u64 r10;
__u64 r11;
__u64 r12;
__u64 r13;
__u64 r14;
__u64 r15;
} __packed;
struct hv_x64_invalid_vp_register_message {
__u32 vp_index;
__u32 reserved;
} __packed;
struct hv_x64_unrecoverable_exception_message {
struct hv_x64_intercept_message_header header;
} __packed;
#define HV_UNSUPPORTED_FEATURE_INTERCEPT 1
#define HV_UNSUPPORTED_FEATURE_TASK_SWITCH_TSS 2
struct hv_x64_unsupported_feature_message {
__u32 vp_index;
__u32 feature_code;
__u64 feature_parameter;
} __packed;