capabilities.h File Reference

#include <asm/vmx.h>
#include "../lapic.h"
#include "../x86.h"
#include "../pmu.h"
#include "../cpuid.h"

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Classes
struct	nested_vmx_msrs
struct	vmcs_config
struct	vmx_capability

Macros
#define	PT_MODE_SYSTEM   0
#define	PT_MODE_HOST_GUEST   1
#define	PMU_CAP_FW_WRITES   (1ULL << 13)
#define	PMU_CAP_LBR_FMT   0x3f

Functions
static bool	cpu_has_vmx_basic_inout (void)
static bool	cpu_has_virtual_nmis (void)
static bool	cpu_has_vmx_preemption_timer (void)
static bool	cpu_has_vmx_posted_intr (void)
static bool	cpu_has_load_ia32_efer (void)
static bool	cpu_has_load_perf_global_ctrl (void)
static bool	cpu_has_vmx_mpx (void)
static bool	cpu_has_vmx_tpr_shadow (void)
static bool	cpu_need_tpr_shadow (struct kvm_vcpu *vcpu)
static bool	cpu_has_vmx_msr_bitmap (void)
static bool	cpu_has_secondary_exec_ctrls (void)
static bool	cpu_has_tertiary_exec_ctrls (void)
static bool	cpu_has_vmx_virtualize_apic_accesses (void)
static bool	cpu_has_vmx_ept (void)
static bool	vmx_umip_emulated (void)
static bool	cpu_has_vmx_rdtscp (void)
static bool	cpu_has_vmx_virtualize_x2apic_mode (void)
static bool	cpu_has_vmx_vpid (void)
static bool	cpu_has_vmx_wbinvd_exit (void)
static bool	cpu_has_vmx_unrestricted_guest (void)
static bool	cpu_has_vmx_apic_register_virt (void)
static bool	cpu_has_vmx_virtual_intr_delivery (void)
static bool	cpu_has_vmx_ple (void)
static bool	cpu_has_vmx_rdrand (void)
static bool	cpu_has_vmx_invpcid (void)
static bool	cpu_has_vmx_vmfunc (void)
static bool	cpu_has_vmx_shadow_vmcs (void)
static bool	cpu_has_vmx_encls_vmexit (void)
static bool	cpu_has_vmx_rdseed (void)
static bool	cpu_has_vmx_pml (void)
static bool	cpu_has_vmx_xsaves (void)
static bool	cpu_has_vmx_waitpkg (void)
static bool	cpu_has_vmx_tsc_scaling (void)
static bool	cpu_has_vmx_bus_lock_detection (void)
static bool	cpu_has_vmx_apicv (void)
static bool	cpu_has_vmx_ipiv (void)
static bool	cpu_has_vmx_flexpriority (void)
static bool	cpu_has_vmx_ept_execute_only (void)
static bool	cpu_has_vmx_ept_4levels (void)
static bool	cpu_has_vmx_ept_5levels (void)
static bool	cpu_has_vmx_ept_mt_wb (void)
static bool	cpu_has_vmx_ept_2m_page (void)
static bool	cpu_has_vmx_ept_1g_page (void)
static int	ept_caps_to_lpage_level (u32 ept_caps)
static bool	cpu_has_vmx_ept_ad_bits (void)
static bool	cpu_has_vmx_invept_context (void)
static bool	cpu_has_vmx_invept_global (void)
static bool	cpu_has_vmx_invvpid (void)
static bool	cpu_has_vmx_invvpid_individual_addr (void)
static bool	cpu_has_vmx_invvpid_single (void)
static bool	cpu_has_vmx_invvpid_global (void)
static bool	cpu_has_vmx_intel_pt (void)
static bool	vmx_pt_mode_is_system (void)
static bool	vmx_pt_mode_is_host_guest (void)
static bool	vmx_pebs_supported (void)
static bool	cpu_has_notify_vmexit (void)

Variables
bool __read_mostly	enable_vpid
bool __read_mostly	flexpriority_enabled
bool __read_mostly	enable_ept
bool __read_mostly	enable_unrestricted_guest
bool __read_mostly	enable_ept_ad_bits
bool __read_mostly	enable_pml
bool __read_mostly	enable_ipiv
int __read_mostly	pt_mode
struct vmcs_config vmcs_config	__ro_after_init

Macro Definition Documentation

PMU_CAP_FW_WRITES

#define PMU_CAP_FW_WRITES   (1ULL << 13)

Definition at line 24 of file capabilities.h.

PMU_CAP_LBR_FMT

#define PMU_CAP_LBR_FMT   0x3f

Definition at line 25 of file capabilities.h.

PT_MODE_HOST_GUEST

#define PT_MODE_HOST_GUEST   1

Definition at line 22 of file capabilities.h.

PT_MODE_SYSTEM

#define PT_MODE_SYSTEM   0

Definition at line 21 of file capabilities.h.

Function Documentation

cpu_has_load_ia32_efer()

static bool cpu_has_load_ia32_efer ( void  )

inlinestatic

Definition at line 99 of file capabilities.h.

{
    return vmcs_config.vmentry_ctrl & VM_ENTRY_LOAD_IA32_EFER;
}

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cpu_has_load_perf_global_ctrl()

static bool cpu_has_load_perf_global_ctrl ( void  )

inlinestatic

Definition at line 104 of file capabilities.h.

{
    return vmcs_config.vmentry_ctrl & VM_ENTRY_LOAD_IA32_PERF_GLOBAL_CTRL;
}

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cpu_has_notify_vmexit()

static bool cpu_has_notify_vmexit ( void  )

inlinestatic

Definition at line 398 of file capabilities.h.

{
    return vmcs_config.cpu_based_2nd_exec_ctrl &
        SECONDARY_EXEC_NOTIFY_VM_EXITING;
}

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cpu_has_secondary_exec_ctrls()

static bool cpu_has_secondary_exec_ctrls ( void  )

inlinestatic

Definition at line 129 of file capabilities.h.

{
    return vmcs_config.cpu_based_exec_ctrl &
        CPU_BASED_ACTIVATE_SECONDARY_CONTROLS;
}

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cpu_has_tertiary_exec_ctrls()

static bool cpu_has_tertiary_exec_ctrls ( void  )

inlinestatic

Definition at line 135 of file capabilities.h.

{
    return vmcs_config.cpu_based_exec_ctrl &
        CPU_BASED_ACTIVATE_TERTIARY_CONTROLS;
}

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cpu_has_virtual_nmis()

static bool cpu_has_virtual_nmis ( void  )

inlinestatic

Definition at line 82 of file capabilities.h.

{
    return vmcs_config.pin_based_exec_ctrl & PIN_BASED_VIRTUAL_NMIS &&
           vmcs_config.cpu_based_exec_ctrl & CPU_BASED_NMI_WINDOW_EXITING;
}

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cpu_has_vmx_apic_register_virt()

static bool cpu_has_vmx_apic_register_virt ( void  )

inlinestatic

Definition at line 189 of file capabilities.h.

{
    return vmcs_config.cpu_based_2nd_exec_ctrl &
        SECONDARY_EXEC_APIC_REGISTER_VIRT;
}

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cpu_has_vmx_apicv()

static bool cpu_has_vmx_apicv ( void  )

inlinestatic

Definition at line 276 of file capabilities.h.

{
    return cpu_has_vmx_apic_register_virt() &&
        cpu_has_vmx_virtual_intr_delivery() &&
        cpu_has_vmx_posted_intr();
}

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cpu_has_vmx_basic_inout()

static bool cpu_has_vmx_basic_inout ( void  )

inlinestatic

Definition at line 77 of file capabilities.h.

{
    return  (((u64)vmcs_config.basic_cap << 32) & VMX_BASIC_INOUT);
}

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cpu_has_vmx_bus_lock_detection()

static bool cpu_has_vmx_bus_lock_detection ( void  )

inlinestatic

Definition at line 270 of file capabilities.h.

{
    return vmcs_config.cpu_based_2nd_exec_ctrl &
        SECONDARY_EXEC_BUS_LOCK_DETECTION;
}

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cpu_has_vmx_encls_vmexit()

static bool cpu_has_vmx_encls_vmexit ( void  )

inlinestatic

Definition at line 235 of file capabilities.h.

{
    return vmcs_config.cpu_based_2nd_exec_ctrl &
        SECONDARY_EXEC_ENCLS_EXITING;
}

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cpu_has_vmx_ept()

static bool cpu_has_vmx_ept ( void  )

inlinestatic

Definition at line 147 of file capabilities.h.

{
    return vmcs_config.cpu_based_2nd_exec_ctrl &
        SECONDARY_EXEC_ENABLE_EPT;
}

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cpu_has_vmx_ept_1g_page()

static bool cpu_has_vmx_ept_1g_page ( void  )

inlinestatic

Definition at line 319 of file capabilities.h.

{
    return vmx_capability.ept & VMX_EPT_1GB_PAGE_BIT;
}

cpu_has_vmx_ept_2m_page()

static bool cpu_has_vmx_ept_2m_page ( void  )

inlinestatic

Definition at line 314 of file capabilities.h.

{
    return vmx_capability.ept & VMX_EPT_2MB_PAGE_BIT;
}

cpu_has_vmx_ept_4levels()

static bool cpu_has_vmx_ept_4levels ( void  )

inlinestatic

Definition at line 299 of file capabilities.h.

{
    return vmx_capability.ept & VMX_EPT_PAGE_WALK_4_BIT;
}

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cpu_has_vmx_ept_5levels()

static bool cpu_has_vmx_ept_5levels ( void  )

inlinestatic

Definition at line 304 of file capabilities.h.

{
    return vmx_capability.ept & VMX_EPT_PAGE_WALK_5_BIT;
}

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cpu_has_vmx_ept_ad_bits()

static bool cpu_has_vmx_ept_ad_bits ( void  )

inlinestatic

Definition at line 333 of file capabilities.h.

{
    return vmx_capability.ept & VMX_EPT_AD_BIT;
}

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cpu_has_vmx_ept_execute_only()

static bool cpu_has_vmx_ept_execute_only ( void  )

inlinestatic

Definition at line 294 of file capabilities.h.

{
    return vmx_capability.ept & VMX_EPT_EXECUTE_ONLY_BIT;
}

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cpu_has_vmx_ept_mt_wb()

static bool cpu_has_vmx_ept_mt_wb ( void  )

inlinestatic

Definition at line 309 of file capabilities.h.

{
    return vmx_capability.ept & VMX_EPTP_WB_BIT;
}

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cpu_has_vmx_flexpriority()

static bool cpu_has_vmx_flexpriority ( void  )

inlinestatic

Definition at line 288 of file capabilities.h.

{
    return cpu_has_vmx_tpr_shadow() &&
        cpu_has_vmx_virtualize_apic_accesses();
}

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cpu_has_vmx_intel_pt()

static bool cpu_has_vmx_intel_pt ( void  )

inlinestatic

Definition at line 368 of file capabilities.h.

{
    return (vmcs_config.misc & MSR_IA32_VMX_MISC_INTEL_PT) &&
        (vmcs_config.cpu_based_2nd_exec_ctrl & SECONDARY_EXEC_PT_USE_GPA) &&
        (vmcs_config.vmentry_ctrl & VM_ENTRY_LOAD_IA32_RTIT_CTL);
}

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cpu_has_vmx_invept_context()

static bool cpu_has_vmx_invept_context ( void  )

inlinestatic

Definition at line 338 of file capabilities.h.

{
    return vmx_capability.ept & VMX_EPT_EXTENT_CONTEXT_BIT;
}

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cpu_has_vmx_invept_global()

static bool cpu_has_vmx_invept_global ( void  )

inlinestatic

Definition at line 343 of file capabilities.h.

{
    return vmx_capability.ept & VMX_EPT_EXTENT_GLOBAL_BIT;
}

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cpu_has_vmx_invpcid()

static bool cpu_has_vmx_invpcid ( void  )

inlinestatic

Definition at line 213 of file capabilities.h.

{
    return vmcs_config.cpu_based_2nd_exec_ctrl &
        SECONDARY_EXEC_ENABLE_INVPCID;
}

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cpu_has_vmx_invvpid()

static bool cpu_has_vmx_invvpid ( void  )

inlinestatic

Definition at line 348 of file capabilities.h.

{
    return vmx_capability.vpid & VMX_VPID_INVVPID_BIT;
}

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cpu_has_vmx_invvpid_global()

static bool cpu_has_vmx_invvpid_global ( void  )

inlinestatic

Definition at line 363 of file capabilities.h.

{
    return vmx_capability.vpid & VMX_VPID_EXTENT_GLOBAL_CONTEXT_BIT;
}

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cpu_has_vmx_invvpid_individual_addr()

static bool cpu_has_vmx_invvpid_individual_addr ( void  )

inlinestatic

Definition at line 353 of file capabilities.h.

{
    return vmx_capability.vpid & VMX_VPID_EXTENT_INDIVIDUAL_ADDR_BIT;
}

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cpu_has_vmx_invvpid_single()

static bool cpu_has_vmx_invvpid_single ( void  )

inlinestatic

Definition at line 358 of file capabilities.h.

{
    return vmx_capability.vpid & VMX_VPID_EXTENT_SINGLE_CONTEXT_BIT;
}

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cpu_has_vmx_ipiv()

static bool cpu_has_vmx_ipiv ( void  )

inlinestatic

Definition at line 283 of file capabilities.h.

{
    return vmcs_config.cpu_based_3rd_exec_ctrl & TERTIARY_EXEC_IPI_VIRT;
}

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cpu_has_vmx_mpx()

static bool cpu_has_vmx_mpx ( void  )

inlinestatic

Definition at line 109 of file capabilities.h.

{
    return vmcs_config.vmentry_ctrl & VM_ENTRY_LOAD_BNDCFGS;
}

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cpu_has_vmx_msr_bitmap()

static bool cpu_has_vmx_msr_bitmap ( void  )

inlinestatic

Definition at line 124 of file capabilities.h.

{
    return vmcs_config.cpu_based_exec_ctrl & CPU_BASED_USE_MSR_BITMAPS;
}

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cpu_has_vmx_ple()

static bool cpu_has_vmx_ple ( void  )

inlinestatic

Definition at line 201 of file capabilities.h.

{
    return vmcs_config.cpu_based_2nd_exec_ctrl &
        SECONDARY_EXEC_PAUSE_LOOP_EXITING;
}

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cpu_has_vmx_pml()

static bool cpu_has_vmx_pml ( void  )

inlinestatic

Definition at line 247 of file capabilities.h.

{
    return vmcs_config.cpu_based_2nd_exec_ctrl & SECONDARY_EXEC_ENABLE_PML;
}

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cpu_has_vmx_posted_intr()

static bool cpu_has_vmx_posted_intr ( void  )

inlinestatic

Definition at line 94 of file capabilities.h.

{
    return vmcs_config.pin_based_exec_ctrl & PIN_BASED_POSTED_INTR;
}

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cpu_has_vmx_preemption_timer()

static bool cpu_has_vmx_preemption_timer ( void  )

inlinestatic

Definition at line 88 of file capabilities.h.

{
    return vmcs_config.pin_based_exec_ctrl &
        PIN_BASED_VMX_PREEMPTION_TIMER;
}

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cpu_has_vmx_rdrand()

static bool cpu_has_vmx_rdrand ( void  )

inlinestatic

Definition at line 207 of file capabilities.h.

{
    return vmcs_config.cpu_based_2nd_exec_ctrl &
        SECONDARY_EXEC_RDRAND_EXITING;
}

cpu_has_vmx_rdseed()

static bool cpu_has_vmx_rdseed ( void  )

inlinestatic

Definition at line 241 of file capabilities.h.

{
    return vmcs_config.cpu_based_2nd_exec_ctrl &
        SECONDARY_EXEC_RDSEED_EXITING;
}

cpu_has_vmx_rdtscp()

static bool cpu_has_vmx_rdtscp ( void  )

inlinestatic

Definition at line 159 of file capabilities.h.

{
    return vmcs_config.cpu_based_2nd_exec_ctrl &
        SECONDARY_EXEC_ENABLE_RDTSCP;
}

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cpu_has_vmx_shadow_vmcs()

static bool cpu_has_vmx_shadow_vmcs ( void  )

inlinestatic

Definition at line 225 of file capabilities.h.

{
    /* check if the cpu supports writing r/o exit information fields */
    if (!(vmcs_config.misc & MSR_IA32_VMX_MISC_VMWRITE_SHADOW_RO_FIELDS))
        return false;
 
    return vmcs_config.cpu_based_2nd_exec_ctrl &
        SECONDARY_EXEC_SHADOW_VMCS;
}

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cpu_has_vmx_tpr_shadow()

static bool cpu_has_vmx_tpr_shadow ( void  )

inlinestatic

Definition at line 114 of file capabilities.h.

{
    return vmcs_config.cpu_based_exec_ctrl & CPU_BASED_TPR_SHADOW;
}

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cpu_has_vmx_tsc_scaling()

static bool cpu_has_vmx_tsc_scaling ( void  )

inlinestatic

Definition at line 264 of file capabilities.h.

{
    return vmcs_config.cpu_based_2nd_exec_ctrl &
        SECONDARY_EXEC_TSC_SCALING;
}

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cpu_has_vmx_unrestricted_guest()

static bool cpu_has_vmx_unrestricted_guest ( void  )

inlinestatic

Definition at line 183 of file capabilities.h.

{
    return vmcs_config.cpu_based_2nd_exec_ctrl &
        SECONDARY_EXEC_UNRESTRICTED_GUEST;
}

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cpu_has_vmx_virtual_intr_delivery()

static bool cpu_has_vmx_virtual_intr_delivery ( void  )

inlinestatic

Definition at line 195 of file capabilities.h.

{
    return vmcs_config.cpu_based_2nd_exec_ctrl &
        SECONDARY_EXEC_VIRTUAL_INTR_DELIVERY;
}

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cpu_has_vmx_virtualize_apic_accesses()

static bool cpu_has_vmx_virtualize_apic_accesses ( void  )

inlinestatic

Definition at line 141 of file capabilities.h.

{
    return vmcs_config.cpu_based_2nd_exec_ctrl &
        SECONDARY_EXEC_VIRTUALIZE_APIC_ACCESSES;
}

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cpu_has_vmx_virtualize_x2apic_mode()

static bool cpu_has_vmx_virtualize_x2apic_mode ( void  )

inlinestatic

Definition at line 165 of file capabilities.h.

{
    return vmcs_config.cpu_based_2nd_exec_ctrl &
        SECONDARY_EXEC_VIRTUALIZE_X2APIC_MODE;
}

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cpu_has_vmx_vmfunc()

static bool cpu_has_vmx_vmfunc ( void  )

inlinestatic

Definition at line 219 of file capabilities.h.

{
    return vmcs_config.cpu_based_2nd_exec_ctrl &
        SECONDARY_EXEC_ENABLE_VMFUNC;
}

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cpu_has_vmx_vpid()

static bool cpu_has_vmx_vpid ( void  )

inlinestatic

Definition at line 171 of file capabilities.h.

{
    return vmcs_config.cpu_based_2nd_exec_ctrl &
        SECONDARY_EXEC_ENABLE_VPID;
}

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cpu_has_vmx_waitpkg()

static bool cpu_has_vmx_waitpkg ( void  )

inlinestatic

Definition at line 258 of file capabilities.h.

{
    return vmcs_config.cpu_based_2nd_exec_ctrl &
        SECONDARY_EXEC_ENABLE_USR_WAIT_PAUSE;
}

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cpu_has_vmx_wbinvd_exit()

static bool cpu_has_vmx_wbinvd_exit ( void  )

inlinestatic

Definition at line 177 of file capabilities.h.

{
    return vmcs_config.cpu_based_2nd_exec_ctrl &
        SECONDARY_EXEC_WBINVD_EXITING;
}

cpu_has_vmx_xsaves()

static bool cpu_has_vmx_xsaves ( void  )

inlinestatic

Definition at line 252 of file capabilities.h.

{
    return vmcs_config.cpu_based_2nd_exec_ctrl &
        SECONDARY_EXEC_ENABLE_XSAVES;
}

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cpu_need_tpr_shadow()

static bool cpu_need_tpr_shadow ( struct kvm_vcpu *  vcpu )

inlinestatic

Definition at line 119 of file capabilities.h.

{
    return cpu_has_vmx_tpr_shadow() && lapic_in_kernel(vcpu);
}

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ept_caps_to_lpage_level()

static int ept_caps_to_lpage_level ( u32  ept_caps )

inlinestatic

Definition at line 324 of file capabilities.h.

{
    if (ept_caps & VMX_EPT_1GB_PAGE_BIT)
        return PG_LEVEL_1G;
    if (ept_caps & VMX_EPT_2MB_PAGE_BIT)
        return PG_LEVEL_2M;
    return PG_LEVEL_4K;
}

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vmx_pebs_supported()

static bool vmx_pebs_supported ( void  )

inlinestatic

Definition at line 393 of file capabilities.h.

{
    return boot_cpu_has(X86_FEATURE_PEBS) && kvm_pmu_cap.pebs_ept;
}

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vmx_pt_mode_is_host_guest()

static bool vmx_pt_mode_is_host_guest ( void  )

inlinestatic

Definition at line 388 of file capabilities.h.

{
    return pt_mode == PT_MODE_HOST_GUEST;
}

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vmx_pt_mode_is_system()

static bool vmx_pt_mode_is_system ( void  )

inlinestatic

Definition at line 384 of file capabilities.h.

{
    return pt_mode == PT_MODE_SYSTEM;
}

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vmx_umip_emulated()

static bool vmx_umip_emulated ( void  )

inlinestatic

Definition at line 153 of file capabilities.h.

{
    return !boot_cpu_has(X86_FEATURE_UMIP) &&
           (vmcs_config.cpu_based_2nd_exec_ctrl & SECONDARY_EXEC_DESC);
}

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Variable Documentation

__ro_after_init

struct vmx_capability vmx_capability __ro_after_init

extern

Definition at line 19 of file capabilities.h.

enable_ept

bool __read_mostly enable_ept

extern

Definition at line 91 of file vmx.c.

enable_ept_ad_bits

bool __read_mostly enable_ept_ad_bits

extern

Definition at line 98 of file vmx.c.

enable_ipiv

bool __read_mostly enable_ipiv

extern

Definition at line 109 of file vmx.c.

enable_pml

bool __read_mostly enable_pml

extern

Definition at line 120 of file vmx.c.

enable_unrestricted_guest

bool __read_mostly enable_unrestricted_guest

extern

Definition at line 94 of file vmx.c.

enable_vpid

bool __read_mostly enable_vpid

extern

Definition at line 82 of file vmx.c.

flexpriority_enabled

bool __read_mostly flexpriority_enabled

extern

Definition at line 88 of file vmx.c.

pt_mode

int __read_mostly pt_mode

extern

Definition at line 215 of file vmx.c.