[21/61] KVM: x86: Use supported_xcr0 to detect MPX support

Message ID	20200201185218.24473-22-sean.j.christopherson@intel.com (mailing list archive)
State	New, archived
Headers	show Return-Path: <SRS0=7ik9=3V=vger.kernel.org=kvm-owner@kernel.org> From: Sean Christopherson <sean.j.christopherson@intel.com> To: Paolo Bonzini <pbonzini@redhat.com> Cc: Sean Christopherson <sean.j.christopherson@intel.com>, Vitaly Kuznetsov <vkuznets@redhat.com>, Wanpeng Li <wanpengli@tencent.com>, Jim Mattson <jmattson@google.com>, Joerg Roedel <joro@8bytes.org>, kvm@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 21/61] KVM: x86: Use supported_xcr0 to detect MPX support Date: Sat, 1 Feb 2020 10:51:38 -0800 Message-Id: <20200201185218.24473-22-sean.j.christopherson@intel.com> In-Reply-To: <20200201185218.24473-1-sean.j.christopherson@intel.com> References: <20200201185218.24473-1-sean.j.christopherson@intel.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: kvm-owner@vger.kernel.org Precedence: bulk
Series	KVM: x86: Introduce KVM cpu caps \| expand [00/61] KVM: x86: Introduce KVM cpu caps [01/61] KVM: x86: Return -E2BIG when KVM_GET_SUPPORTED_CPUID hits max entries [02/61] KVM: x86: Refactor loop around do_cpuid_func() to separate helper [03/61] KVM: x86: Simplify handling of Centaur CPUID leafs [04/61] KVM: x86: Clean up error handling in kvm_dev_ioctl_get_cpuid() [05/61] KVM: x86: Check userapce CPUID array size after validating sub-leaf [06/61] KVM: x86: Move CPUID 0xD.1 handling out of the index>0 loop [07/61] KVM: x86: Check for CPUID 0xD.N support before validating array size [08/61] KVM: x86: Warn on zero-size save state for valid CPUID 0xD.N sub-leaf [09/61] KVM: x86: Refactor CPUID 0xD.N sub-leaf entry creation [10/61] KVM: x86: Clean up CPUID 0x7 sub-leaf loop [11/61] KVM: x86: Drop the explicit @index from do_cpuid_7_mask() [12/61] KVM: x86: Drop redundant boot cpu checks on SSBD feature bits [13/61] KVM: x86: Consolidate CPUID array max num entries checking [14/61] KVM: x86: Hoist loop counter and terminator to top of __do_cpuid_func() [15/61] KVM: x86: Refactor CPUID 0x4 and 0x8000001d handling [16/61] KVM: x86: Encapsulate CPUID entries and metadata in struct [17/61] KVM: x86: Drop redundant array size check [18/61] KVM: x86: Use common loop iterator when handling CPUID 0xD.N [19/61] KVM: VMX: Add helpers to query Intel PT mode [20/61] KVM: x86: Calculate the supported xcr0 mask at load time [21/61] KVM: x86: Use supported_xcr0 to detect MPX support [22/61] KVM: x86: Make kvm_mpx_supported() an inline function [23/61] KVM: x86: Clear output regs for CPUID 0x14 if PT isn't exposed to guest [24/61] KVM: x86: Drop explicit @func param from ->set_supported_cpuid() [25/61] KVM: x86: Use u32 for holding CPUID register value in helpers [26/61] KVM: x86: Introduce cpuid_entry_{get,has}() accessors [27/61] KVM: x86: Introduce cpuid_entry_{change,set,clear}() mutators [28/61] KVM: x86: Refactor cpuid_mask() to auto-retrieve the register [29/61] KVM: x86: Add Kconfig-controlled auditing of reverse CPUID lookups [30/61] KVM: x86: Handle MPX CPUID adjustment in VMX code [31/61] KVM: x86: Handle INVPCID CPUID adjustment in VMX code [32/61] KVM: x86: Handle UMIP emulation CPUID adjustment in VMX code [33/61] KVM: x86: Handle PKU CPUID adjustment in VMX code [34/61] KVM: x86: Handle RDTSCP CPUID adjustment in VMX code [35/61] KVM: x86: Handle Intel PT CPUID adjustment in VMX code [36/61] KVM: x86: Handle GBPAGE CPUID adjustment for EPT in VMX code [37/61] KVM: x86: Refactor handling of XSAVES CPUID adjustment [38/61] KVM: x86: Introduce kvm_cpu_caps to replace runtime CPUID masking [39/61] KVM: SVM: Convert feature updates from CPUID to KVM cpu caps [40/61] KVM: VMX: Convert feature updates from CPUID to KVM cpu caps [41/61] KVM: x86: Move XSAVES CPUID adjust to VMX's KVM cpu cap update [42/61] KVM: x86: Add a helper to check kernel support when setting cpu cap [43/61] KVM: x86: Use KVM cpu caps to mark CR4.LA57 as not-reserved [44/61] KVM: x86: Use KVM cpu caps to track UMIP emulation [45/61] KVM: x86: Fold CPUID 0x7 masking back into __do_cpuid_func() [46/61] KVM: x86: Remove the unnecessary loop on CPUID 0x7 sub-leafs [47/61] KVM: x86: Squash CPUID 0x2.0 insanity for modern CPUs [48/61] KVM: x86: Do host CPUID at load time to mask KVM cpu caps [49/61] KVM: x86: Override host CPUID results with kvm_cpu_caps [50/61] KVM: x86: Set emulated/transmuted feature bits via kvm_cpu_caps [51/61] KVM: x86: Use kvm_cpu_caps to detect Intel PT support [52/61] KVM: x86: Use KVM cpu caps to detect MSR_TSC_AUX virt support [53/61] KVM: VMX: Directly use VMX capabilities helper to detect RDTSCP support [54/61] KVM: x86: Check for Intel PT MSR virtualization using KVM cpu caps [55/61] KVM: VMX: Directly query Intel PT mode when refreshing PMUs [56/61] KVM: SVM: Refactor logging of NPT enabled/disabled [57/61] KVM: x86/mmu: Merge kvm_{enable,disable}_tdp() into a common function [58/61] KVM: x86/mmu: Configure max page level during hardware setup [59/61] KVM: x86: Don't propagate MMU lpage support to memslot.disallow_lpage [60/61] KVM: Drop largepages_enabled and its accessor/mutator [61/61] KVM: x86: Move VMX's host_efer to common x86 code

Message ID

20200201185218.24473-22-sean.j.christopherson@intel.com (mailing list archive)

State

New, archived

Headers

From: Sean Christopherson <sean.j.christopherson@intel.com>
To: Paolo Bonzini <pbonzini@redhat.com>
Cc: Sean Christopherson <sean.j.christopherson@intel.com>,
        Vitaly Kuznetsov <vkuznets@redhat.com>,
        Wanpeng Li <wanpengli@tencent.com>,
        Jim Mattson <jmattson@google.com>,
        Joerg Roedel <joro@8bytes.org>, kvm@vger.kernel.org,
        linux-kernel@vger.kernel.org
Subject: [PATCH 21/61] KVM: x86: Use supported_xcr0 to detect MPX support
Date: Sat,  1 Feb 2020 10:51:38 -0800
Message-Id: <20200201185218.24473-22-sean.j.christopherson@intel.com>
In-Reply-To: <20200201185218.24473-1-sean.j.christopherson@intel.com>
References: <20200201185218.24473-1-sean.j.christopherson@intel.com>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Sender: kvm-owner@vger.kernel.org
Precedence: bulk

Series

KVM: x86: Introduce KVM cpu caps | expand

Commit Message

Sean Christopherson Feb. 1, 2020, 6:51 p.m. UTC

Query supported_xcr0 when checking for MPX support instead of invoking
->mpx_supported() and drop ->mpx_supported() as kvm_mpx_supported() was
its last user.  Rename vmx_mpx_supported() to cpu_has_vmx_mpx() to
better align with VMX/VMCS nomenclature.

Modify VMX's adjustment of xcr0 to call cpus_has_vmx_mpx() (renamed from
vmx_mpx_supported()) directly to avoid reading supported_xcr0 before
it's fully configured.

No functional change intended.

Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
---
 arch/x86/include/asm/kvm_host.h | 2 +-
 arch/x86/kvm/cpuid.c            | 3 +--
 arch/x86/kvm/svm.c              | 6 ------
 arch/x86/kvm/vmx/capabilities.h | 2 +-
 arch/x86/kvm/vmx/vmx.c          | 3 +--
 5 files changed, 4 insertions(+), 12 deletions(-)

Comments

Xiaoyao Li Feb. 13, 2020, 2:25 p.m. UTC | #1

On 2/2/2020 2:51 AM, Sean Christopherson wrote:
> Query supported_xcr0 when checking for MPX support instead of invoking
> ->mpx_supported() and drop ->mpx_supported() as kvm_mpx_supported() was
> its last user.  Rename vmx_mpx_supported() to cpu_has_vmx_mpx() to
> better align with VMX/VMCS nomenclature.
> 
> Modify VMX's adjustment of xcr0 to call cpus_has_vmx_mpx() (renamed from
> vmx_mpx_supported()) directly to avoid reading supported_xcr0 before
> it's fully configured.
> 
> No functional change intended.
> 

Reviewed-by: Xiaoyao Li <xiaoyao.li@intel.com>

> Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
> ---
>   arch/x86/include/asm/kvm_host.h | 2 +-
>   arch/x86/kvm/cpuid.c            | 3 +--
>   arch/x86/kvm/svm.c              | 6 ------
>   arch/x86/kvm/vmx/capabilities.h | 2 +-
>   arch/x86/kvm/vmx/vmx.c          | 3 +--
>   5 files changed, 4 insertions(+), 12 deletions(-)
> 
> diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
> index 77d206a93658..85f0d96cfeb2 100644
> --- a/arch/x86/include/asm/kvm_host.h
> +++ b/arch/x86/include/asm/kvm_host.h
> @@ -1163,7 +1163,7 @@ struct kvm_x86_ops {
>   			       enum x86_intercept_stage stage);
>   	void (*handle_exit_irqoff)(struct kvm_vcpu *vcpu,
>   		enum exit_fastpath_completion *exit_fastpath);
> -	bool (*mpx_supported)(void);
> +
>   	bool (*xsaves_supported)(void);
>   	bool (*umip_emulated)(void);
>   	bool (*pt_supported)(void);
> diff --git a/arch/x86/kvm/cpuid.c b/arch/x86/kvm/cpuid.c
> index b9763eb711cb..84006cc4007c 100644
> --- a/arch/x86/kvm/cpuid.c
> +++ b/arch/x86/kvm/cpuid.c
> @@ -47,8 +47,7 @@ static u32 xstate_required_size(u64 xstate_bv, bool compacted)
>   
>   bool kvm_mpx_supported(void)
>   {
> -	return ((host_xcr0 & (XFEATURE_MASK_BNDREGS | XFEATURE_MASK_BNDCSR))
> -		 && kvm_x86_ops->mpx_supported());
> +	return supported_xcr0 & (XFEATURE_MASK_BNDREGS | XFEATURE_MASK_BNDCSR);
>   }
>   EXPORT_SYMBOL_GPL(kvm_mpx_supported);
>   
> diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
> index af096c4f9c5f..3c7ddaff405d 100644
> --- a/arch/x86/kvm/svm.c
> +++ b/arch/x86/kvm/svm.c
> @@ -6082,11 +6082,6 @@ static bool svm_invpcid_supported(void)
>   	return false;
>   }
>   
> -static bool svm_mpx_supported(void)
> -{
> -	return false;
> -}
> -
>   static bool svm_xsaves_supported(void)
>   {
>   	return boot_cpu_has(X86_FEATURE_XSAVES);
> @@ -7468,7 +7463,6 @@ static struct kvm_x86_ops svm_x86_ops __ro_after_init = {
>   
>   	.rdtscp_supported = svm_rdtscp_supported,
>   	.invpcid_supported = svm_invpcid_supported,
> -	.mpx_supported = svm_mpx_supported,
>   	.xsaves_supported = svm_xsaves_supported,
>   	.umip_emulated = svm_umip_emulated,
>   	.pt_supported = svm_pt_supported,
> diff --git a/arch/x86/kvm/vmx/capabilities.h b/arch/x86/kvm/vmx/capabilities.h
> index 1a6a99382e94..0a0b1494a934 100644
> --- a/arch/x86/kvm/vmx/capabilities.h
> +++ b/arch/x86/kvm/vmx/capabilities.h
> @@ -100,7 +100,7 @@ static inline bool cpu_has_load_perf_global_ctrl(void)
>   	       (vmcs_config.vmexit_ctrl & VM_EXIT_LOAD_IA32_PERF_GLOBAL_CTRL);
>   }
>   
> -static inline bool vmx_mpx_supported(void)
> +static inline bool cpu_has_vmx_mpx(void)
>   {
>   	return (vmcs_config.vmexit_ctrl & VM_EXIT_CLEAR_BNDCFGS) &&
>   		(vmcs_config.vmentry_ctrl & VM_ENTRY_LOAD_BNDCFGS);
> diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c
> index 32a84ec15064..98fd651f7f7e 100644
> --- a/arch/x86/kvm/vmx/vmx.c
> +++ b/arch/x86/kvm/vmx/vmx.c
> @@ -7590,7 +7590,7 @@ static __init int hardware_setup(void)
>   		WARN_ONCE(host_bndcfgs, "KVM: BNDCFGS in host will be lost");
>   	}
>   
> -	if (!kvm_mpx_supported())
> +	if (!cpu_has_vmx_mpx())
>   		supported_xcr0 &= ~(XFEATURE_MASK_BNDREGS |
>   				    XFEATURE_MASK_BNDCSR);
>   
> @@ -7857,7 +7857,6 @@ static struct kvm_x86_ops vmx_x86_ops __ro_after_init = {
>   
>   	.check_intercept = vmx_check_intercept,
>   	.handle_exit_irqoff = vmx_handle_exit_irqoff,
> -	.mpx_supported = vmx_mpx_supported,
>   	.xsaves_supported = vmx_xsaves_supported,
>   	.umip_emulated = vmx_umip_emulated,
>   	.pt_supported = vmx_pt_supported,
>

Vitaly Kuznetsov Feb. 21, 2020, 3:32 p.m. UTC | #2

Sean Christopherson <sean.j.christopherson@intel.com> writes:

> Query supported_xcr0 when checking for MPX support instead of invoking
> ->mpx_supported() and drop ->mpx_supported() as kvm_mpx_supported() was
> its last user.  Rename vmx_mpx_supported() to cpu_has_vmx_mpx() to
> better align with VMX/VMCS nomenclature.
>
> Modify VMX's adjustment of xcr0 to call cpus_has_vmx_mpx() (renamed from
> vmx_mpx_supported()) directly to avoid reading supported_xcr0 before
> it's fully configured.
>
> No functional change intended.
>
> Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
> ---
>  arch/x86/include/asm/kvm_host.h | 2 +-
>  arch/x86/kvm/cpuid.c            | 3 +--
>  arch/x86/kvm/svm.c              | 6 ------
>  arch/x86/kvm/vmx/capabilities.h | 2 +-
>  arch/x86/kvm/vmx/vmx.c          | 3 +--
>  5 files changed, 4 insertions(+), 12 deletions(-)
>
> diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
> index 77d206a93658..85f0d96cfeb2 100644
> --- a/arch/x86/include/asm/kvm_host.h
> +++ b/arch/x86/include/asm/kvm_host.h
> @@ -1163,7 +1163,7 @@ struct kvm_x86_ops {
>  			       enum x86_intercept_stage stage);
>  	void (*handle_exit_irqoff)(struct kvm_vcpu *vcpu,
>  		enum exit_fastpath_completion *exit_fastpath);
> -	bool (*mpx_supported)(void);
> +
>  	bool (*xsaves_supported)(void);
>  	bool (*umip_emulated)(void);
>  	bool (*pt_supported)(void);
> diff --git a/arch/x86/kvm/cpuid.c b/arch/x86/kvm/cpuid.c
> index b9763eb711cb..84006cc4007c 100644
> --- a/arch/x86/kvm/cpuid.c
> +++ b/arch/x86/kvm/cpuid.c
> @@ -47,8 +47,7 @@ static u32 xstate_required_size(u64 xstate_bv, bool compacted)
>  
>  bool kvm_mpx_supported(void)
>  {
> -	return ((host_xcr0 & (XFEATURE_MASK_BNDREGS | XFEATURE_MASK_BNDCSR))
> -		 && kvm_x86_ops->mpx_supported());
> +	return supported_xcr0 & (XFEATURE_MASK_BNDREGS | XFEATURE_MASK_BNDCSR);
>  }
>  EXPORT_SYMBOL_GPL(kvm_mpx_supported);
>  
> diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
> index af096c4f9c5f..3c7ddaff405d 100644
> --- a/arch/x86/kvm/svm.c
> +++ b/arch/x86/kvm/svm.c
> @@ -6082,11 +6082,6 @@ static bool svm_invpcid_supported(void)
>  	return false;
>  }
>  
> -static bool svm_mpx_supported(void)
> -{
> -	return false;
> -}
> -
>  static bool svm_xsaves_supported(void)
>  {
>  	return boot_cpu_has(X86_FEATURE_XSAVES);
> @@ -7468,7 +7463,6 @@ static struct kvm_x86_ops svm_x86_ops __ro_after_init = {
>  
>  	.rdtscp_supported = svm_rdtscp_supported,
>  	.invpcid_supported = svm_invpcid_supported,
> -	.mpx_supported = svm_mpx_supported,
>  	.xsaves_supported = svm_xsaves_supported,
>  	.umip_emulated = svm_umip_emulated,
>  	.pt_supported = svm_pt_supported,
> diff --git a/arch/x86/kvm/vmx/capabilities.h b/arch/x86/kvm/vmx/capabilities.h
> index 1a6a99382e94..0a0b1494a934 100644
> --- a/arch/x86/kvm/vmx/capabilities.h
> +++ b/arch/x86/kvm/vmx/capabilities.h
> @@ -100,7 +100,7 @@ static inline bool cpu_has_load_perf_global_ctrl(void)
>  	       (vmcs_config.vmexit_ctrl & VM_EXIT_LOAD_IA32_PERF_GLOBAL_CTRL);
>  }
>  
> -static inline bool vmx_mpx_supported(void)
> +static inline bool cpu_has_vmx_mpx(void)
>  {
>  	return (vmcs_config.vmexit_ctrl & VM_EXIT_CLEAR_BNDCFGS) &&
>  		(vmcs_config.vmentry_ctrl & VM_ENTRY_LOAD_BNDCFGS);
> diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c
> index 32a84ec15064..98fd651f7f7e 100644
> --- a/arch/x86/kvm/vmx/vmx.c
> +++ b/arch/x86/kvm/vmx/vmx.c
> @@ -7590,7 +7590,7 @@ static __init int hardware_setup(void)
>  		WARN_ONCE(host_bndcfgs, "KVM: BNDCFGS in host will be lost");
>  	}
>  
> -	if (!kvm_mpx_supported())
> +	if (!cpu_has_vmx_mpx())
>  		supported_xcr0 &= ~(XFEATURE_MASK_BNDREGS |
>  				    XFEATURE_MASK_BNDCSR);
>  
> @@ -7857,7 +7857,6 @@ static struct kvm_x86_ops vmx_x86_ops __ro_after_init = {
>  
>  	.check_intercept = vmx_check_intercept,
>  	.handle_exit_irqoff = vmx_handle_exit_irqoff,
> -	.mpx_supported = vmx_mpx_supported,
>  	.xsaves_supported = vmx_xsaves_supported,
>  	.umip_emulated = vmx_umip_emulated,
>  	.pt_supported = vmx_pt_supported,

Reviewed-by: Vitaly Kuznetsov <vkuznets@redhat.com>

diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index 77d206a93658..85f0d96cfeb2 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -1163,7 +1163,7 @@  struct kvm_x86_ops {
 			       enum x86_intercept_stage stage);
 	void (*handle_exit_irqoff)(struct kvm_vcpu *vcpu,
 		enum exit_fastpath_completion *exit_fastpath);
-	bool (*mpx_supported)(void);
+
 	bool (*xsaves_supported)(void);
 	bool (*umip_emulated)(void);
 	bool (*pt_supported)(void);
diff --git a/arch/x86/kvm/cpuid.c b/arch/x86/kvm/cpuid.c
index b9763eb711cb..84006cc4007c 100644
--- a/arch/x86/kvm/cpuid.c
+++ b/arch/x86/kvm/cpuid.c
@@ -47,8 +47,7 @@  static u32 xstate_required_size(u64 xstate_bv, bool compacted)
 
 bool kvm_mpx_supported(void)
 {
-	return ((host_xcr0 & (XFEATURE_MASK_BNDREGS | XFEATURE_MASK_BNDCSR))
-		 && kvm_x86_ops->mpx_supported());
+	return supported_xcr0 & (XFEATURE_MASK_BNDREGS | XFEATURE_MASK_BNDCSR);
 }
 EXPORT_SYMBOL_GPL(kvm_mpx_supported);
 
diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index af096c4f9c5f..3c7ddaff405d 100644
--- a/arch/x86/kvm/svm.c
+++ b/arch/x86/kvm/svm.c
@@ -6082,11 +6082,6 @@  static bool svm_invpcid_supported(void)
 	return false;
 }
 
-static bool svm_mpx_supported(void)
-{
-	return false;
-}
-
 static bool svm_xsaves_supported(void)
 {
 	return boot_cpu_has(X86_FEATURE_XSAVES);
@@ -7468,7 +7463,6 @@  static struct kvm_x86_ops svm_x86_ops __ro_after_init = {
 
 	.rdtscp_supported = svm_rdtscp_supported,
 	.invpcid_supported = svm_invpcid_supported,
-	.mpx_supported = svm_mpx_supported,
 	.xsaves_supported = svm_xsaves_supported,
 	.umip_emulated = svm_umip_emulated,
 	.pt_supported = svm_pt_supported,
diff --git a/arch/x86/kvm/vmx/capabilities.h b/arch/x86/kvm/vmx/capabilities.h
index 1a6a99382e94..0a0b1494a934 100644
--- a/arch/x86/kvm/vmx/capabilities.h
+++ b/arch/x86/kvm/vmx/capabilities.h
@@ -100,7 +100,7 @@  static inline bool cpu_has_load_perf_global_ctrl(void)
 	       (vmcs_config.vmexit_ctrl & VM_EXIT_LOAD_IA32_PERF_GLOBAL_CTRL);
 }
 
-static inline bool vmx_mpx_supported(void)
+static inline bool cpu_has_vmx_mpx(void)
 {
 	return (vmcs_config.vmexit_ctrl & VM_EXIT_CLEAR_BNDCFGS) &&
 		(vmcs_config.vmentry_ctrl & VM_ENTRY_LOAD_BNDCFGS);
diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c
index 32a84ec15064..98fd651f7f7e 100644
--- a/arch/x86/kvm/vmx/vmx.c
+++ b/arch/x86/kvm/vmx/vmx.c
@@ -7590,7 +7590,7 @@  static __init int hardware_setup(void)
 		WARN_ONCE(host_bndcfgs, "KVM: BNDCFGS in host will be lost");
 	}
 
-	if (!kvm_mpx_supported())
+	if (!cpu_has_vmx_mpx())
 		supported_xcr0 &= ~(XFEATURE_MASK_BNDREGS |
 				    XFEATURE_MASK_BNDCSR);
 
@@ -7857,7 +7857,6 @@  static struct kvm_x86_ops vmx_x86_ops __ro_after_init = {
 
 	.check_intercept = vmx_check_intercept,
 	.handle_exit_irqoff = vmx_handle_exit_irqoff,
-	.mpx_supported = vmx_mpx_supported,
 	.xsaves_supported = vmx_xsaves_supported,
 	.umip_emulated = vmx_umip_emulated,
 	.pt_supported = vmx_pt_supported,

[21/61] KVM: x86: Use supported_xcr0 to detect MPX support

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