[PATCH 13/14] KVM: nVMX: hyper-v: Hide more stuff under CONFIG_KVM_HYPERV

From: Vitaly Kuznetsov
Date: Wed Oct 25 2023 - 11:27:04 EST


'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.

Reviewed-by: Maxim Levitsky <mlevitsk@xxxxxxxxxx>
Signed-off-by: Vitaly Kuznetsov <vkuznets@xxxxxxxxxx>
---
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 fa04aa38ad52..4777d867419c 100644
--- a/arch/x86/kvm/vmx/nested.c
+++ b/arch/x86/kvm/vmx/nested.c
@@ -6642,6 +6642,7 @@ 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
@@ -6651,6 +6652,7 @@ 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 27411665bef9..6e0ff015c5ff 100644
--- a/arch/x86/kvm/vmx/vmx.c
+++ b/arch/x86/kvm/vmx/vmx.c
@@ -4826,7 +4826,10 @@ 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