/* SPDX-License-Identifier: GPL-2.0 */
/*
* Type definitions for the Microsoft Hypervisor .
*/
#ifndef _HV_HVGDK_H
#define _HV_HVGDK_H
#include "hvgdk_mini.h"
#include "hvgdk_ext.h"
/*
* The guest OS needs to register the guest ID with the hypervisor .
* The guest ID is a 64 bit entity and the structure of this ID is
* specified in the Hyper - V TLFS specification .
*
* While the current guideline does not specify how Linux guest ID ( s )
* need to be generated , our plan is to publish the guidelines for
* Linux and other guest operating systems that currently are hosted
* on Hyper - V . The implementation here conforms to this yet
* unpublished guidelines .
*
* Bit ( s )
* 63 - Indicates if the OS is Open Source or not ; 1 is Open Source
* 62 : 56 - Os Type ; Linux is 0 x100
* 55 : 48 - Distro specific identification
* 47 : 16 - Linux kernel version number
* 15 : 0 - Distro specific identification
*/
#define HV_LINUX_VENDOR_ID 0 x8100
/* HV_VMX_ENLIGHTENED_VMCS */
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 padding32_1;
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;
u32 padding32_2;
u64 hv_vm_id;
u64 partition_assist_page;
u64 padding64_4[4 ];
u64 guest_bndcfgs;
u64 guest_ia32_perf_global_ctrl;
u64 guest_ia32_s_cet;
u64 guest_ssp;
u64 guest_ia32_int_ssp_table_addr;
u64 guest_ia32_lbr_ctl;
u64 padding64_5[2 ];
u64 xss_exit_bitmap;
u64 encls_exiting_bitmap;
u64 host_ia32_perf_global_ctrl;
u64 tsc_multiplier;
u64 host_ia32_s_cet;
u64 host_ssp;
u64 host_ia32_int_ssp_table_addr;
u64 padding64_6;
} __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 0 xFFFF
/*
* Note , Hyper - V isn ' t actually stealing bit 28 from Intel , just abusing it by
* pairing it with architecturally impossible exit reasons . Bit 28 is set only
* on SMI exits to a SMI transfer monitor ( STM ) and if and only if a MTF VM - Exit
* is pending . I . e . it will never be set by hardware for non - SMI exits ( there
* are only three ) , nor will it ever be set unless the VMM is an STM .
*/
#define HV_VMX_SYNTHETIC_EXIT_REASON_TRAP_AFTER_FLUSH 0 x10000031
/*
* Hyper - V uses the software reserved 32 bytes in VMCB control area to expose
* SVM enlightenments to guests . This is documented in the TLFS doc .
* Note on naming : SVM_NESTED_ENLIGHTENED_VMCB_FIELDS
*/
struct hv_vmcb_enlightenments {
struct __packed hv_enlightenments_control {
u32 nested_flush_hypercall : 1 ;
u32 msr_bitmap : 1 ;
u32 enlightened_npt_tlb: 1 ;
u32 reserved : 29 ;
} __packed hv_enlightenments_control;
u32 hv_vp_id;
u64 hv_vm_id;
u64 partition_assist_page;
u64 reserved;
} __packed;
/*
* Hyper - V uses the software reserved clean bit in VMCB .
*/
#define HV_VMCB_NESTED_ENLIGHTENMENTS 31
/* Synthetic VM-Exit */
#define HV_SVM_EXITCODE_ENL 0 xf0000000
#define HV_SVM_ENL_EXITCODE_TRAP_AFTER_FLUSH (1 )
/* VM_PARTITION_ASSIST_PAGE */
struct hv_partition_assist_pg {
u32 tlb_lock_count;
};
/* Define connection identifier type. */
union hv_connection_id {
u32 asu32;
struct {
u32 id : 24 ;
u32 reserved : 8 ;
} __packed u;
};
struct hv_input_unmap_gpa_pages {
u64 target_partition_id;
u64 target_gpa_base;
u32 unmap_flags;
u32 padding;
} __packed;
#endif /* #ifndef _HV_HVGDK_H */
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