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From:   Vitaly Kuznetsov <vkuznets@redhat.com>
To:     kvm@vger.kernel.org, Paolo Bonzini <pbonzini@redhat.com>,
        Sean Christopherson <seanjc@google.com>
Cc:     linux-kernel@vger.kernel.org
Subject: [PATCH RFC 10/11] KVM: nVMX: hyper-v: Hide more stuff under CONFIG_KVM_HYPERV
Date:   Tue, 10 Oct 2023 18:02:59 +0200
Message-ID: <20231010160300.1136799-11-vkuznets@redhat.com>
In-Reply-To: <20231010160300.1136799-1-vkuznets@redhat.com>
References: <20231010160300.1136799-1-vkuznets@redhat.com>
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'hv_evmcs_vmptr'/'hv_evmcs_map'/'hv_evmcs' fields in 'struct nested_vmx'
should not be used when !CONFIG_KVM_HYPERV, hide them when
!CONFIG_KVM_HYPERV.

No functional change intended.

Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
---
 arch/x86/kvm/vmx/nested.c | 2 ++
 arch/x86/kvm/vmx/vmx.c    | 3 +++
 arch/x86/kvm/vmx/vmx.h    | 2 ++
 3 files changed, 7 insertions(+)

diff --git a/arch/x86/kvm/vmx/nested.c b/arch/x86/kvm/vmx/nested.c
index d539904d8f1e..10cb35cd7a19 100644
--- a/arch/x86/kvm/vmx/nested.c
+++ b/arch/x86/kvm/vmx/nested.c
@@ -6650,6 +6650,7 @@ static int vmx_set_nested_state(struct kvm_vcpu *vcpu,
 			return -EINVAL;
 
 		set_current_vmptr(vmx, kvm_state->hdr.vmx.vmcs12_pa);
+#ifdef CONFIG_KVM_HYPERV
 	} else if (kvm_state->flags & KVM_STATE_NESTED_EVMCS) {
 		/*
 		 * nested_vmx_handle_enlightened_vmptrld() cannot be called
@@ -6659,6 +6660,7 @@ static int vmx_set_nested_state(struct kvm_vcpu *vcpu,
 		 */
 		vmx->nested.hv_evmcs_vmptr = EVMPTR_MAP_PENDING;
 		kvm_make_request(KVM_REQ_GET_NESTED_STATE_PAGES, vcpu);
+#endif
 	} else {
 		return -EINVAL;
 	}
diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c
index 04eb5d4d28bc..3b1bd3d97150 100644
--- a/arch/x86/kvm/vmx/vmx.c
+++ b/arch/x86/kvm/vmx/vmx.c
@@ -4834,7 +4834,10 @@ static void __vmx_vcpu_reset(struct kvm_vcpu *vcpu)
 	vmx->nested.posted_intr_nv = -1;
 	vmx->nested.vmxon_ptr = INVALID_GPA;
 	vmx->nested.current_vmptr = INVALID_GPA;
+
+#ifdef CONFIG_KVM_HYPERV
 	vmx->nested.hv_evmcs_vmptr = EVMPTR_INVALID;
+#endif
 
 	vcpu->arch.microcode_version = 0x100000000ULL;
 	vmx->msr_ia32_feature_control_valid_bits = FEAT_CTL_LOCKED;
diff --git a/arch/x86/kvm/vmx/vmx.h b/arch/x86/kvm/vmx/vmx.h
index c2130d2c8e24..55addb8eef01 100644
--- a/arch/x86/kvm/vmx/vmx.h
+++ b/arch/x86/kvm/vmx/vmx.h
@@ -241,9 +241,11 @@ struct nested_vmx {
 		bool guest_mode;
 	} smm;
 
+#ifdef CONFIG_KVM_HYPERV
 	gpa_t hv_evmcs_vmptr;
 	struct kvm_host_map hv_evmcs_map;
 	struct hv_enlightened_vmcs *hv_evmcs;
+#endif
 };
 
 struct vcpu_vmx {
-- 
2.41.0