e08cae4181
Clean up the hypervisor layer and the hypervisor drivers, using an ops structure instead of an enumeration with if statements. The identity of the hypervisor, if needed, can be tested by testing the pointer value in x86_hyper. The MS-HyperV private state is moved into a normal global variable (it's per-system state, not per-CPU state). Being a normal bss variable, it will be left at all zero on non-HyperV platforms, and so can generally be tested for HyperV-specific features without additional qualification. Signed-off-by: H. Peter Anvin <hpa@zytor.com> Acked-by: Greg KH <greg@kroah.com> Cc: Hank Janssen <hjanssen@microsoft.com> Cc: Alok Kataria <akataria@vmware.com> Cc: Ky Srinivasan <ksrinivasan@novell.com> LKML-Reference: <4BE49778.6060800@zytor.com>
193 lines
6.9 KiB
C
193 lines
6.9 KiB
C
#ifndef _ASM_X86_HYPERV_H
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#define _ASM_X86_HYPERV_H
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#include <linux/types.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_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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* Feature identification. EAX indicates which features are available
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* to the partition based upon the current partition privileges.
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*/
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/* VP Runtime (HV_X64_MSR_VP_RUNTIME) available */
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#define HV_X64_MSR_VP_RUNTIME_AVAILABLE (1 << 0)
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/* Partition Reference Counter (HV_X64_MSR_TIME_REF_COUNT) available*/
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#define HV_X64_MSR_TIME_REF_COUNT_AVAILABLE (1 << 1)
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/*
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* Basic SynIC MSRs (HV_X64_MSR_SCONTROL through HV_X64_MSR_EOM
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* and HV_X64_MSR_SINT0 through HV_X64_MSR_SINT15) available
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*/
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#define HV_X64_MSR_SYNIC_AVAILABLE (1 << 2)
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/*
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* Synthetic Timer MSRs (HV_X64_MSR_STIMER0_CONFIG through
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* HV_X64_MSR_STIMER3_COUNT) available
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*/
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#define HV_X64_MSR_SYNTIMER_AVAILABLE (1 << 3)
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/*
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* APIC access MSRs (HV_X64_MSR_EOI, HV_X64_MSR_ICR and HV_X64_MSR_TPR)
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* are available
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*/
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#define HV_X64_MSR_APIC_ACCESS_AVAILABLE (1 << 4)
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/* Hypercall MSRs (HV_X64_MSR_GUEST_OS_ID and HV_X64_MSR_HYPERCALL) available*/
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#define HV_X64_MSR_HYPERCALL_AVAILABLE (1 << 5)
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/* Access virtual processor index MSR (HV_X64_MSR_VP_INDEX) available*/
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#define HV_X64_MSR_VP_INDEX_AVAILABLE (1 << 6)
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/* Virtual system reset MSR (HV_X64_MSR_RESET) is available*/
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#define HV_X64_MSR_RESET_AVAILABLE (1 << 7)
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/*
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* Access statistics pages MSRs (HV_X64_MSR_STATS_PARTITION_RETAIL_PAGE,
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* HV_X64_MSR_STATS_PARTITION_INTERNAL_PAGE, HV_X64_MSR_STATS_VP_RETAIL_PAGE,
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* HV_X64_MSR_STATS_VP_INTERNAL_PAGE) available
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*/
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#define HV_X64_MSR_STAT_PAGES_AVAILABLE (1 << 8)
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/*
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* Feature identification: EBX indicates which flags were specified at
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* partition creation. The format is the same as the partition creation
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* flag structure defined in section Partition Creation Flags.
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*/
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#define HV_X64_CREATE_PARTITIONS (1 << 0)
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#define HV_X64_ACCESS_PARTITION_ID (1 << 1)
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#define HV_X64_ACCESS_MEMORY_POOL (1 << 2)
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#define HV_X64_ADJUST_MESSAGE_BUFFERS (1 << 3)
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#define HV_X64_POST_MESSAGES (1 << 4)
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#define HV_X64_SIGNAL_EVENTS (1 << 5)
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#define HV_X64_CREATE_PORT (1 << 6)
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#define HV_X64_CONNECT_PORT (1 << 7)
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#define HV_X64_ACCESS_STATS (1 << 8)
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#define HV_X64_DEBUGGING (1 << 11)
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#define HV_X64_CPU_POWER_MANAGEMENT (1 << 12)
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#define HV_X64_CONFIGURE_PROFILER (1 << 13)
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/*
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* Feature identification. EDX indicates which miscellaneous features
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* are available to the partition.
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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 (1 << 0)
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/* Guest debugging support is available */
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#define HV_X64_GUEST_DEBUGGING_AVAILABLE (1 << 1)
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/* Performance Monitor support is available*/
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#define HV_X64_PERF_MONITOR_AVAILABLE (1 << 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 (1 << 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 (1 << 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 (1 << 5)
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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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*/
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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_MWAIT_RECOMMENDED (1 << 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 (1 << 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 (1 << 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 (1 << 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 (1 << 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 (1 << 5)
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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 read the per-partition time reference counter */
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#define HV_X64_MSR_TIME_REF_COUNT 0x40000020
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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_APIC_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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#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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/* Declare the various hypercall operations. */
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#define HV_X64_HV_NOTIFY_LONG_SPIN_WAIT 0x0008
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#define HV_X64_MSR_APIC_ASSIST_PAGE_ENABLE 0x00000001
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#define HV_X64_MSR_APIC_ASSIST_PAGE_ADDRESS_SHIFT 12
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#define HV_X64_MSR_APIC_ASSIST_PAGE_ADDRESS_MASK \
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(~((1ull << HV_X64_MSR_APIC_ASSIST_PAGE_ADDRESS_SHIFT) - 1))
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#define HV_PROCESSOR_POWER_STATE_C0 0
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#define HV_PROCESSOR_POWER_STATE_C1 1
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#define HV_PROCESSOR_POWER_STATE_C2 2
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#define HV_PROCESSOR_POWER_STATE_C3 3
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/* hypercall status code */
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#define HV_STATUS_SUCCESS 0
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#define HV_STATUS_INVALID_HYPERCALL_CODE 2
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#define HV_STATUS_INVALID_HYPERCALL_INPUT 3
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#define HV_STATUS_INVALID_ALIGNMENT 4
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#endif
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