/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* This file contains definitions from Hyper-V Hypervisor Top-Level Functional
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* Specification (TLFS):
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* https://docs.microsoft.com/en-us/virtualization/hyper-v-on-windows/reference/tlfs
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*/
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#ifndef _ASM_X86_HYPERV_TLFS_H
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#define _ASM_X86_HYPERV_TLFS_H
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#include <linux/types.h>
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#include <asm/page.h>
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/*
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* The below CPUID leaves are present if VersionAndFeatures.HypervisorPresent
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* is set by CPUID(HvCpuIdFunctionVersionAndFeatures).
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*/
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#define HYPERV_CPUID_VENDOR_AND_MAX_FUNCTIONS 0x40000000
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#define HYPERV_CPUID_INTERFACE 0x40000001
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#define HYPERV_CPUID_VERSION 0x40000002
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#define HYPERV_CPUID_FEATURES 0x40000003
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#define HYPERV_CPUID_ENLIGHTMENT_INFO 0x40000004
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#define HYPERV_CPUID_IMPLEMENT_LIMITS 0x40000005
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#define HYPERV_CPUID_NESTED_FEATURES 0x4000000A
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#define HYPERV_HYPERVISOR_PRESENT_BIT 0x80000000
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#define HYPERV_CPUID_MIN 0x40000005
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#define HYPERV_CPUID_MAX 0x4000ffff
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/*
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* Group D Features. The bit assignments are custom to each architecture.
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* On x86/x64 these are HYPERV_CPUID_FEATURES.EDX bits.
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*/
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/* The MWAIT instruction is available (per section MONITOR / MWAIT) */
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#define HV_X64_MWAIT_AVAILABLE BIT(0)
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/* Guest debugging support is available */
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#define HV_X64_GUEST_DEBUGGING_AVAILABLE BIT(1)
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/* Performance Monitor support is available*/
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#define HV_X64_PERF_MONITOR_AVAILABLE BIT(2)
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/* Support for physical CPU dynamic partitioning events is available*/
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#define HV_X64_CPU_DYNAMIC_PARTITIONING_AVAILABLE BIT(3)
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/*
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* Support for passing hypercall input parameter block via XMM
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* registers is available
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*/
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#define HV_X64_HYPERCALL_PARAMS_XMM_AVAILABLE BIT(4)
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/* Support for a virtual guest idle state is available */
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#define HV_X64_GUEST_IDLE_STATE_AVAILABLE BIT(5)
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/* Frequency MSRs available */
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#define HV_FEATURE_FREQUENCY_MSRS_AVAILABLE BIT(8)
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/* Crash MSR available */
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#define HV_FEATURE_GUEST_CRASH_MSR_AVAILABLE BIT(10)
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/* Support for debug MSRs available */
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#define HV_FEATURE_DEBUG_MSRS_AVAILABLE BIT(11)
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/* stimer Direct Mode is available */
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#define HV_STIMER_DIRECT_MODE_AVAILABLE BIT(19)
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/*
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* Implementation recommendations. Indicates which behaviors the hypervisor
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* recommends the OS implement for optimal performance.
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* These are HYPERV_CPUID_ENLIGHTMENT_INFO.EAX bits.
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*/
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/*
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* Recommend using hypercall for address space switches rather
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* than MOV to CR3 instruction
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*/
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#define HV_X64_AS_SWITCH_RECOMMENDED BIT(0)
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/* Recommend using hypercall for local TLB flushes rather
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* than INVLPG or MOV to CR3 instructions */
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#define HV_X64_LOCAL_TLB_FLUSH_RECOMMENDED BIT(1)
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/*
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* Recommend using hypercall for remote TLB flushes rather
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* than inter-processor interrupts
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*/
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#define HV_X64_REMOTE_TLB_FLUSH_RECOMMENDED BIT(2)
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/*
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* Recommend using MSRs for accessing APIC registers
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* EOI, ICR and TPR rather than their memory-mapped counterparts
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*/
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#define HV_X64_APIC_ACCESS_RECOMMENDED BIT(3)
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/* Recommend using the hypervisor-provided MSR to initiate a system RESET */
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#define HV_X64_SYSTEM_RESET_RECOMMENDED BIT(4)
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/*
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* Recommend using relaxed timing for this partition. If used,
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* the VM should disable any watchdog timeouts that rely on the
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* timely delivery of external interrupts
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*/
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#define HV_X64_RELAXED_TIMING_RECOMMENDED BIT(5)
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/*
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* Recommend not using Auto End-Of-Interrupt feature
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*/
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#define HV_DEPRECATING_AEOI_RECOMMENDED BIT(9)
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/*
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* Recommend using cluster IPI hypercalls.
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*/
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#define HV_X64_CLUSTER_IPI_RECOMMENDED BIT(10)
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/* Recommend using the newer ExProcessorMasks interface */
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#define HV_X64_EX_PROCESSOR_MASKS_RECOMMENDED BIT(11)
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/* Recommend using enlightened VMCS */
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#define HV_X64_ENLIGHTENED_VMCS_RECOMMENDED BIT(14)
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/*
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* Virtual processor will never share a physical core with another virtual
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* processor, except for virtual processors that are reported as sibling SMT
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* threads.
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*/
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#define HV_X64_NO_NONARCH_CORESHARING BIT(18)
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/* Nested features. These are HYPERV_CPUID_NESTED_FEATURES.EAX bits. */
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#define HV_X64_NESTED_DIRECT_FLUSH BIT(17)
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#define HV_X64_NESTED_GUEST_MAPPING_FLUSH BIT(18)
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#define HV_X64_NESTED_MSR_BITMAP BIT(19)
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/* Hyper-V specific model specific registers (MSRs) */
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/* MSR used to identify the guest OS. */
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#define HV_X64_MSR_GUEST_OS_ID 0x40000000
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/* MSR used to setup pages used to communicate with the hypervisor. */
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#define HV_X64_MSR_HYPERCALL 0x40000001
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/* MSR used to provide vcpu index */
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#define HV_X64_MSR_VP_INDEX 0x40000002
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/* MSR used to reset the guest OS. */
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#define HV_X64_MSR_RESET 0x40000003
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/* MSR used to provide vcpu runtime in 100ns units */
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#define HV_X64_MSR_VP_RUNTIME 0x40000010
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/* MSR used to read the per-partition time reference counter */
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#define HV_X64_MSR_TIME_REF_COUNT 0x40000020
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/* A partition's reference time stamp counter (TSC) page */
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#define HV_X64_MSR_REFERENCE_TSC 0x40000021
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/* MSR used to retrieve the TSC frequency */
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#define HV_X64_MSR_TSC_FREQUENCY 0x40000022
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/* MSR used to retrieve the local APIC timer frequency */
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#define HV_X64_MSR_APIC_FREQUENCY 0x40000023
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/* Define the virtual APIC registers */
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#define HV_X64_MSR_EOI 0x40000070
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#define HV_X64_MSR_ICR 0x40000071
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#define HV_X64_MSR_TPR 0x40000072
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#define HV_X64_MSR_VP_ASSIST_PAGE 0x40000073
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/* Define synthetic interrupt controller model specific registers. */
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#define HV_X64_MSR_SCONTROL 0x40000080
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#define HV_X64_MSR_SVERSION 0x40000081
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#define HV_X64_MSR_SIEFP 0x40000082
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#define HV_X64_MSR_SIMP 0x40000083
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#define HV_X64_MSR_EOM 0x40000084
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#define HV_X64_MSR_SINT0 0x40000090
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#define HV_X64_MSR_SINT1 0x40000091
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#define HV_X64_MSR_SINT2 0x40000092
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#define HV_X64_MSR_SINT3 0x40000093
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#define HV_X64_MSR_SINT4 0x40000094
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#define HV_X64_MSR_SINT5 0x40000095
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#define HV_X64_MSR_SINT6 0x40000096
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#define HV_X64_MSR_SINT7 0x40000097
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#define HV_X64_MSR_SINT8 0x40000098
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#define HV_X64_MSR_SINT9 0x40000099
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#define HV_X64_MSR_SINT10 0x4000009A
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#define HV_X64_MSR_SINT11 0x4000009B
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#define HV_X64_MSR_SINT12 0x4000009C
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#define HV_X64_MSR_SINT13 0x4000009D
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#define HV_X64_MSR_SINT14 0x4000009E
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#define HV_X64_MSR_SINT15 0x4000009F
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/*
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* Synthetic Timer MSRs. Four timers per vcpu.
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*/
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#define HV_X64_MSR_STIMER0_CONFIG 0x400000B0
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#define HV_X64_MSR_STIMER0_COUNT 0x400000B1
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#define HV_X64_MSR_STIMER1_CONFIG 0x400000B2
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#define HV_X64_MSR_STIMER1_COUNT 0x400000B3
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#define HV_X64_MSR_STIMER2_CONFIG 0x400000B4
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#define HV_X64_MSR_STIMER2_COUNT 0x400000B5
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#define HV_X64_MSR_STIMER3_CONFIG 0x400000B6
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#define HV_X64_MSR_STIMER3_COUNT 0x400000B7
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/* Hyper-V guest idle MSR */
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#define HV_X64_MSR_GUEST_IDLE 0x400000F0
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/* Hyper-V guest crash notification MSR's */
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#define HV_X64_MSR_CRASH_P0 0x40000100
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#define HV_X64_MSR_CRASH_P1 0x40000101
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#define HV_X64_MSR_CRASH_P2 0x40000102
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#define HV_X64_MSR_CRASH_P3 0x40000103
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#define HV_X64_MSR_CRASH_P4 0x40000104
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#define HV_X64_MSR_CRASH_CTL 0x40000105
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/* TSC emulation after migration */
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#define HV_X64_MSR_REENLIGHTENMENT_CONTROL 0x40000106
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#define HV_X64_MSR_TSC_EMULATION_CONTROL 0x40000107
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#define HV_X64_MSR_TSC_EMULATION_STATUS 0x40000108
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/* TSC invariant control */
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#define HV_X64_MSR_TSC_INVARIANT_CONTROL 0x40000118
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/*
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* Declare the MSR used to setup pages used to communicate with the hypervisor.
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*/
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union hv_x64_msr_hypercall_contents {
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u64 as_uint64;
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struct {
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u64 enable:1;
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u64 reserved:11;
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u64 guest_physical_address:52;
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} __packed;
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};
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struct hv_reenlightenment_control {
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__u64 vector:8;
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__u64 reserved1:8;
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__u64 enabled:1;
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__u64 reserved2:15;
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__u64 target_vp:32;
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} __packed;
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struct hv_tsc_emulation_control {
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__u64 enabled:1;
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__u64 reserved:63;
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} __packed;
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struct hv_tsc_emulation_status {
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__u64 inprogress:1;
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__u64 reserved:63;
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} __packed;
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#define HV_X64_MSR_HYPERCALL_ENABLE 0x00000001
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#define HV_X64_MSR_HYPERCALL_PAGE_ADDRESS_SHIFT 12
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#define HV_X64_MSR_HYPERCALL_PAGE_ADDRESS_MASK \
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(~((1ull << HV_X64_MSR_HYPERCALL_PAGE_ADDRESS_SHIFT) - 1))
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#define HV_X64_MSR_CRASH_PARAMS \
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(1 + (HV_X64_MSR_CRASH_P4 - HV_X64_MSR_CRASH_P0))
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#define HV_IPI_LOW_VECTOR 0x10
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#define HV_IPI_HIGH_VECTOR 0xff
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#define HV_X64_MSR_VP_ASSIST_PAGE_ENABLE 0x00000001
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#define HV_X64_MSR_VP_ASSIST_PAGE_ADDRESS_SHIFT 12
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#define HV_X64_MSR_VP_ASSIST_PAGE_ADDRESS_MASK \
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(~((1ull << HV_X64_MSR_VP_ASSIST_PAGE_ADDRESS_SHIFT) - 1))
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/* Hyper-V Enlightened VMCS version mask in nested features CPUID */
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#define HV_X64_ENLIGHTENED_VMCS_VERSION 0xff
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#define HV_X64_MSR_TSC_REFERENCE_ENABLE 0x00000001
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#define HV_X64_MSR_TSC_REFERENCE_ADDRESS_SHIFT 12
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/* Define hypervisor message types. */
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enum hv_message_type {
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HVMSG_NONE = 0x00000000,
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/* Memory access messages. */
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HVMSG_UNMAPPED_GPA = 0x80000000,
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HVMSG_GPA_INTERCEPT = 0x80000001,
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/* Timer notification messages. */
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HVMSG_TIMER_EXPIRED = 0x80000010,
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/* Error messages. */
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HVMSG_INVALID_VP_REGISTER_VALUE = 0x80000020,
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HVMSG_UNRECOVERABLE_EXCEPTION = 0x80000021,
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HVMSG_UNSUPPORTED_FEATURE = 0x80000022,
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/* Trace buffer complete messages. */
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HVMSG_EVENTLOG_BUFFERCOMPLETE = 0x80000040,
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/* Platform-specific processor intercept messages. */
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HVMSG_X64_IOPORT_INTERCEPT = 0x80010000,
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HVMSG_X64_MSR_INTERCEPT = 0x80010001,
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HVMSG_X64_CPUID_INTERCEPT = 0x80010002,
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HVMSG_X64_EXCEPTION_INTERCEPT = 0x80010003,
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HVMSG_X64_APIC_EOI = 0x80010004,
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HVMSG_X64_LEGACY_FP_ERROR = 0x80010005
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};
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struct hv_nested_enlightenments_control {
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struct {
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__u32 directhypercall:1;
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__u32 reserved:31;
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} features;
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struct {
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__u32 reserved;
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} hypercallControls;
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} __packed;
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/* Define virtual processor assist page structure. */
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struct hv_vp_assist_page {
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__u32 apic_assist;
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__u32 reserved1;
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__u64 vtl_control[3];
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struct hv_nested_enlightenments_control nested_control;
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__u8 enlighten_vmentry;
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__u8 reserved2[7];
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__u64 current_nested_vmcs;
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} __packed;
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struct hv_enlightened_vmcs {
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u32 revision_id;
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u32 abort;
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u16 host_es_selector;
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u16 host_cs_selector;
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u16 host_ss_selector;
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u16 host_ds_selector;
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u16 host_fs_selector;
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u16 host_gs_selector;
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u16 host_tr_selector;
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u16 padding16_1;
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u64 host_ia32_pat;
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u64 host_ia32_efer;
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u64 host_cr0;
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u64 host_cr3;
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u64 host_cr4;
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u64 host_ia32_sysenter_esp;
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u64 host_ia32_sysenter_eip;
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u64 host_rip;
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u32 host_ia32_sysenter_cs;
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u32 pin_based_vm_exec_control;
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u32 vm_exit_controls;
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u32 secondary_vm_exec_control;
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u64 io_bitmap_a;
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u64 io_bitmap_b;
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u64 msr_bitmap;
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u16 guest_es_selector;
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u16 guest_cs_selector;
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u16 guest_ss_selector;
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u16 guest_ds_selector;
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u16 guest_fs_selector;
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u16 guest_gs_selector;
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u16 guest_ldtr_selector;
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u16 guest_tr_selector;
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u32 guest_es_limit;
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u32 guest_cs_limit;
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u32 guest_ss_limit;
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u32 guest_ds_limit;
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u32 guest_fs_limit;
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u32 guest_gs_limit;
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u32 guest_ldtr_limit;
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u32 guest_tr_limit;
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u32 guest_gdtr_limit;
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u32 guest_idtr_limit;
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u32 guest_es_ar_bytes;
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u32 guest_cs_ar_bytes;
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u32 guest_ss_ar_bytes;
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u32 guest_ds_ar_bytes;
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u32 guest_fs_ar_bytes;
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u32 guest_gs_ar_bytes;
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u32 guest_ldtr_ar_bytes;
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u32 guest_tr_ar_bytes;
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u64 guest_es_base;
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u64 guest_cs_base;
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u64 guest_ss_base;
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u64 guest_ds_base;
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u64 guest_fs_base;
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u64 guest_gs_base;
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u64 guest_ldtr_base;
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u64 guest_tr_base;
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u64 guest_gdtr_base;
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u64 guest_idtr_base;
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u64 padding64_1[3];
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u64 vm_exit_msr_store_addr;
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u64 vm_exit_msr_load_addr;
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u64 vm_entry_msr_load_addr;
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u64 cr3_target_value0;
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u64 cr3_target_value1;
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u64 cr3_target_value2;
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u64 cr3_target_value3;
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u32 page_fault_error_code_mask;
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u32 page_fault_error_code_match;
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u32 cr3_target_count;
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u32 vm_exit_msr_store_count;
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u32 vm_exit_msr_load_count;
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u32 vm_entry_msr_load_count;
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u64 tsc_offset;
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u64 virtual_apic_page_addr;
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u64 vmcs_link_pointer;
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u64 guest_ia32_debugctl;
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u64 guest_ia32_pat;
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u64 guest_ia32_efer;
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u64 guest_pdptr0;
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u64 guest_pdptr1;
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u64 guest_pdptr2;
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u64 guest_pdptr3;
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u64 guest_pending_dbg_exceptions;
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u64 guest_sysenter_esp;
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u64 guest_sysenter_eip;
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u32 guest_activity_state;
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u32 guest_sysenter_cs;
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u64 cr0_guest_host_mask;
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u64 cr4_guest_host_mask;
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u64 cr0_read_shadow;
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u64 cr4_read_shadow;
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u64 guest_cr0;
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u64 guest_cr3;
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u64 guest_cr4;
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u64 guest_dr7;
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u64 host_fs_base;
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u64 host_gs_base;
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u64 host_tr_base;
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u64 host_gdtr_base;
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u64 host_idtr_base;
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u64 host_rsp;
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u64 ept_pointer;
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u16 virtual_processor_id;
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u16 padding16_2[3];
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u64 padding64_2[5];
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u64 guest_physical_address;
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u32 vm_instruction_error;
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u32 vm_exit_reason;
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u32 vm_exit_intr_info;
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u32 vm_exit_intr_error_code;
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u32 idt_vectoring_info_field;
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u32 idt_vectoring_error_code;
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u32 vm_exit_instruction_len;
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u32 vmx_instruction_info;
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u64 exit_qualification;
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u64 exit_io_instruction_ecx;
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u64 exit_io_instruction_esi;
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u64 exit_io_instruction_edi;
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u64 exit_io_instruction_eip;
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u64 guest_linear_address;
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u64 guest_rsp;
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u64 guest_rflags;
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u32 guest_interruptibility_info;
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u32 cpu_based_vm_exec_control;
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u32 exception_bitmap;
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u32 vm_entry_controls;
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u32 vm_entry_intr_info_field;
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u32 vm_entry_exception_error_code;
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u32 vm_entry_instruction_len;
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u32 tpr_threshold;
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u64 guest_rip;
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u32 hv_clean_fields;
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u32 padding32_1;
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u32 hv_synthetic_controls;
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struct {
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u32 nested_flush_hypercall:1;
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u32 msr_bitmap:1;
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u32 reserved:30;
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} __packed hv_enlightenments_control;
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u32 hv_vp_id;
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u32 padding32_2;
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u64 hv_vm_id;
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u64 partition_assist_page;
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u64 padding64_4[4];
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u64 guest_bndcfgs;
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u64 padding64_5[7];
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u64 xss_exit_bitmap;
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u64 padding64_6[7];
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} __packed;
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#define HV_VMX_ENLIGHTENED_CLEAN_FIELD_NONE 0
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#define HV_VMX_ENLIGHTENED_CLEAN_FIELD_IO_BITMAP BIT(0)
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#define HV_VMX_ENLIGHTENED_CLEAN_FIELD_MSR_BITMAP BIT(1)
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#define HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_GRP2 BIT(2)
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#define HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_GRP1 BIT(3)
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#define HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_PROC BIT(4)
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#define HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_EVENT BIT(5)
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#define HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_ENTRY BIT(6)
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#define HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_EXCPN BIT(7)
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#define HV_VMX_ENLIGHTENED_CLEAN_FIELD_CRDR BIT(8)
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#define HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_XLAT BIT(9)
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#define HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_BASIC BIT(10)
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#define HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP1 BIT(11)
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#define HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2 BIT(12)
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#define HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_POINTER BIT(13)
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#define HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_GRP1 BIT(14)
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#define HV_VMX_ENLIGHTENED_CLEAN_FIELD_ENLIGHTENMENTSCONTROL BIT(15)
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#define HV_VMX_ENLIGHTENED_CLEAN_FIELD_ALL 0xFFFF
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struct hv_partition_assist_pg {
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u32 tlb_lock_count;
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};
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#include <asm-generic/hyperv-tlfs.h>
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#endif
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