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From: Sean Christopherson <sean.j.christopherson@intel.com>
To: Paolo Bonzini <pbonzini@redhat.com>
Cc: Paul Mackerras <paulus@ozlabs.org>,
	Christian Borntraeger <borntraeger@de.ibm.com>,
	Janosch Frank <frankja@linux.ibm.com>,
	David Hildenbrand <david@redhat.com>,
	Cornelia Huck <cohuck@redhat.com>,
	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>,
	Marc Zyngier <maz@kernel.org>, James Morse <james.morse@arm.com>,
	Julien Thierry <julien.thierry.kdev@gmail.com>,
	Suzuki K Poulose <suzuki.poulose@arm.com>,
	linux-mips@vger.kernel.org, kvm@vger.kernel.org,
	kvm-ppc@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
	kvmarm@lists.cs.columbia.edu, linux-kernel@vger.kernel.org
Subject: [PATCH v2 4/9] KVM: VMX: Configure runtime hooks using vmx_x86_ops
Date: Tue, 18 Feb 2020 15:54:32 -0800	[thread overview]
Message-ID: <20200218235437.20533-5-sean.j.christopherson@intel.com> (raw)
In-Reply-To: <20200218235437.20533-1-sean.j.christopherson@intel.com>

Configure VMX's runtime hooks by modifying vmx_x86_ops directly instead
of using on the global kvm_x86_ops.  This sets the stage for waiting
until after ->hardware_setup() to set kvm_x86_ops with the vendor's
implementation.

Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
---
 arch/x86/kvm/vmx/nested.c | 15 ++++++++-------
 arch/x86/kvm/vmx/nested.h |  3 ++-
 arch/x86/kvm/vmx/vmx.c    | 27 ++++++++++++++-------------
 3 files changed, 24 insertions(+), 21 deletions(-)

diff --git a/arch/x86/kvm/vmx/nested.c b/arch/x86/kvm/vmx/nested.c
index 657c2eda357c..07db28f5087d 100644
--- a/arch/x86/kvm/vmx/nested.c
+++ b/arch/x86/kvm/vmx/nested.c
@@ -6160,7 +6160,8 @@ void nested_vmx_hardware_unsetup(void)
 	}
 }
 
-__init int nested_vmx_hardware_setup(int (*exit_handlers[])(struct kvm_vcpu *))
+__init int nested_vmx_hardware_setup(struct kvm_x86_ops *ops,
+				     int (*exit_handlers[])(struct kvm_vcpu *))
 {
 	int i;
 
@@ -6196,12 +6197,12 @@ __init int nested_vmx_hardware_setup(int (*exit_handlers[])(struct kvm_vcpu *))
 	exit_handlers[EXIT_REASON_INVVPID]	= handle_invvpid;
 	exit_handlers[EXIT_REASON_VMFUNC]	= handle_vmfunc;
 
-	kvm_x86_ops->check_nested_events = vmx_check_nested_events;
-	kvm_x86_ops->get_nested_state = vmx_get_nested_state;
-	kvm_x86_ops->set_nested_state = vmx_set_nested_state;
-	kvm_x86_ops->get_vmcs12_pages = nested_get_vmcs12_pages;
-	kvm_x86_ops->nested_enable_evmcs = nested_enable_evmcs;
-	kvm_x86_ops->nested_get_evmcs_version = nested_get_evmcs_version;
+	ops->check_nested_events = vmx_check_nested_events;
+	ops->get_nested_state = vmx_get_nested_state;
+	ops->set_nested_state = vmx_set_nested_state;
+	ops->get_vmcs12_pages = nested_get_vmcs12_pages;
+	ops->nested_enable_evmcs = nested_enable_evmcs;
+	ops->nested_get_evmcs_version = nested_get_evmcs_version;
 
 	return 0;
 }
diff --git a/arch/x86/kvm/vmx/nested.h b/arch/x86/kvm/vmx/nested.h
index fc874d4ead0f..e356871a7cfa 100644
--- a/arch/x86/kvm/vmx/nested.h
+++ b/arch/x86/kvm/vmx/nested.h
@@ -20,7 +20,8 @@ void vmx_leave_nested(struct kvm_vcpu *vcpu);
 void nested_vmx_setup_ctls_msrs(struct nested_vmx_msrs *msrs, u32 ept_caps,
 				bool apicv);
 void nested_vmx_hardware_unsetup(void);
-__init int nested_vmx_hardware_setup(int (*exit_handlers[])(struct kvm_vcpu *));
+__init int nested_vmx_hardware_setup(struct kvm_x86_ops *ops,
+				     int (*exit_handlers[])(struct kvm_vcpu *));
 void nested_vmx_set_vmcs_shadowing_bitmap(void);
 void nested_vmx_free_vcpu(struct kvm_vcpu *vcpu);
 enum nvmx_vmentry_status nested_vmx_enter_non_root_mode(struct kvm_vcpu *vcpu,
diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c
index 168386f8c9da..098203b6508f 100644
--- a/arch/x86/kvm/vmx/vmx.c
+++ b/arch/x86/kvm/vmx/vmx.c
@@ -7767,10 +7767,10 @@ static __init int hardware_setup(void)
 	 * using the APIC_ACCESS_ADDR VMCS field.
 	 */
 	if (!flexpriority_enabled)
-		kvm_x86_ops->set_apic_access_page_addr = NULL;
+		vmx_x86_ops.set_apic_access_page_addr = NULL;
 
 	if (!cpu_has_vmx_tpr_shadow())
-		kvm_x86_ops->update_cr8_intercept = NULL;
+		vmx_x86_ops.update_cr8_intercept = NULL;
 
 	if (enable_ept && !cpu_has_vmx_ept_2m_page())
 		kvm_disable_largepages();
@@ -7778,8 +7778,8 @@ static __init int hardware_setup(void)
 #if IS_ENABLED(CONFIG_HYPERV)
 	if (ms_hyperv.nested_features & HV_X64_NESTED_GUEST_MAPPING_FLUSH
 	    && enable_ept) {
-		kvm_x86_ops->tlb_remote_flush = hv_remote_flush_tlb;
-		kvm_x86_ops->tlb_remote_flush_with_range =
+		vmx_x86_ops.tlb_remote_flush = hv_remote_flush_tlb;
+		vmx_x86_ops.tlb_remote_flush_with_range =
 				hv_remote_flush_tlb_with_range;
 	}
 #endif
@@ -7794,7 +7794,7 @@ static __init int hardware_setup(void)
 
 	if (!cpu_has_vmx_apicv()) {
 		enable_apicv = 0;
-		kvm_x86_ops->sync_pir_to_irr = NULL;
+		vmx_x86_ops.sync_pir_to_irr = NULL;
 	}
 
 	if (cpu_has_vmx_tsc_scaling()) {
@@ -7818,10 +7818,10 @@ static __init int hardware_setup(void)
 		enable_pml = 0;
 
 	if (!enable_pml) {
-		kvm_x86_ops->slot_enable_log_dirty = NULL;
-		kvm_x86_ops->slot_disable_log_dirty = NULL;
-		kvm_x86_ops->flush_log_dirty = NULL;
-		kvm_x86_ops->enable_log_dirty_pt_masked = NULL;
+		vmx_x86_ops.slot_enable_log_dirty = NULL;
+		vmx_x86_ops.slot_disable_log_dirty = NULL;
+		vmx_x86_ops.flush_log_dirty = NULL;
+		vmx_x86_ops.enable_log_dirty_pt_masked = NULL;
 	}
 
 	if (!cpu_has_vmx_preemption_timer())
@@ -7849,9 +7849,9 @@ static __init int hardware_setup(void)
 	}
 
 	if (!enable_preemption_timer) {
-		kvm_x86_ops->set_hv_timer = NULL;
-		kvm_x86_ops->cancel_hv_timer = NULL;
-		kvm_x86_ops->request_immediate_exit = __kvm_request_immediate_exit;
+		vmx_x86_ops.set_hv_timer = NULL;
+		vmx_x86_ops.cancel_hv_timer = NULL;
+		vmx_x86_ops.request_immediate_exit = __kvm_request_immediate_exit;
 	}
 
 	kvm_set_posted_intr_wakeup_handler(wakeup_handler);
@@ -7867,7 +7867,8 @@ static __init int hardware_setup(void)
 		nested_vmx_setup_ctls_msrs(&vmcs_config.nested,
 					   vmx_capability.ept, enable_apicv);
 
-		r = nested_vmx_hardware_setup(kvm_vmx_exit_handlers);
+		r = nested_vmx_hardware_setup(&vmx_x86_ops,
+					      kvm_vmx_exit_handlers);
 		if (r)
 			return r;
 	}
-- 
2.24.1


  parent reply	other threads:[~2020-02-18 23:54 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-02-18 23:54 [PATCH v2 0/9] KVM: Move x86 init ops to separate struct Sean Christopherson
2020-02-18 23:54 ` [PATCH v2 1/9] KVM: Pass kvm_init()'s opaque param to additional arch funcs Sean Christopherson
2020-02-19  7:52   ` Marc Zyngier
2020-02-18 23:54 ` [PATCH v2 2/9] KVM: x86: Move init-only kvm_x86_ops to separate struct Sean Christopherson
2020-02-18 23:54 ` [PATCH v2 3/9] KVM: VMX: Move hardware_setup() definition below vmx_x86_ops Sean Christopherson
2020-02-18 23:54 ` Sean Christopherson [this message]
2020-02-18 23:54 ` [PATCH v2 5/9] KVM: x86: Set kvm_x86_ops only after ->hardware_setup() completes Sean Christopherson
2020-02-18 23:54 ` [PATCH v2 6/9] KVM: x86: Copy kvm_x86_ops by value to eliminate layer of indirection Sean Christopherson
2020-02-18 23:54 ` [PATCH v2 7/9] KVM: x86: Drop __exit from kvm_x86_ops' hardware_unsetup() Sean Christopherson
2020-02-18 23:54 ` [PATCH v2 8/9] KVM: VMX: Annotate vmx_x86_ops as __initdata Sean Christopherson
2020-02-18 23:54 ` [PATCH v2 9/9] KVM: SVM: Annotate svm_x86_ops " Sean Christopherson

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