[PATCH v2 4/5] KVM: x86: Invert APICv/AVIC enablement check

From: Vitaly Kuznetsov
Date: Tue May 18 2021 - 10:44:09 EST


Now that APICv/AVIC enablement is kept in common 'enable_apicv' variable,
there's no need to call kvm_apicv_init() from vendor specific code.

No functional change intended.

Signed-off-by: Vitaly Kuznetsov <vkuznets@xxxxxxxxxx>
---
arch/x86/include/asm/kvm_host.h | 1 -
arch/x86/kvm/svm/svm.c | 1 -
arch/x86/kvm/vmx/vmx.c | 1 -
arch/x86/kvm/x86.c | 6 +++---
4 files changed, 3 insertions(+), 6 deletions(-)

diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index a2197fcf0e7c..bf5807d35339 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -1662,7 +1662,6 @@ gpa_t kvm_mmu_gva_to_gpa_system(struct kvm_vcpu *vcpu, gva_t gva,
struct x86_exception *exception);

bool kvm_apicv_activated(struct kvm *kvm);
-void kvm_apicv_init(struct kvm *kvm, bool enable);
void kvm_vcpu_update_apicv(struct kvm_vcpu *vcpu);
void kvm_request_apicv_update(struct kvm *kvm, bool activate,
unsigned long bit);
diff --git a/arch/x86/kvm/svm/svm.c b/arch/x86/kvm/svm/svm.c
index 0d6ec34d1e4b..84f58e8b2f49 100644
--- a/arch/x86/kvm/svm/svm.c
+++ b/arch/x86/kvm/svm/svm.c
@@ -4438,7 +4438,6 @@ static int svm_vm_init(struct kvm *kvm)
return ret;
}

- kvm_apicv_init(kvm, enable_apicv);
return 0;
}

diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c
index 5e9ba10e9c2d..697dd54c7df8 100644
--- a/arch/x86/kvm/vmx/vmx.c
+++ b/arch/x86/kvm/vmx/vmx.c
@@ -7000,7 +7000,6 @@ static int vmx_vm_init(struct kvm *kvm)
break;
}
}
- kvm_apicv_init(kvm, enable_apicv);
return 0;
}

diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 23fdbba6b394..22a1e2b438c3 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -8345,16 +8345,15 @@ bool kvm_apicv_activated(struct kvm *kvm)
}
EXPORT_SYMBOL_GPL(kvm_apicv_activated);

-void kvm_apicv_init(struct kvm *kvm, bool enable)
+static void kvm_apicv_init(struct kvm *kvm)
{
- if (enable)
+ if (enable_apicv)
clear_bit(APICV_INHIBIT_REASON_DISABLE,
&kvm->arch.apicv_inhibit_reasons);
else
set_bit(APICV_INHIBIT_REASON_DISABLE,
&kvm->arch.apicv_inhibit_reasons);
}
-EXPORT_SYMBOL_GPL(kvm_apicv_init);

static void kvm_sched_yield(struct kvm_vcpu *vcpu, unsigned long dest_id)
{
@@ -10739,6 +10738,7 @@ int kvm_arch_init_vm(struct kvm *kvm, unsigned long type)
INIT_DELAYED_WORK(&kvm->arch.kvmclock_update_work, kvmclock_update_fn);
INIT_DELAYED_WORK(&kvm->arch.kvmclock_sync_work, kvmclock_sync_fn);

+ kvm_apicv_init(kvm);
kvm_hv_init_vm(kvm);
kvm_page_track_init(kvm);
kvm_mmu_init_vm(kvm);
--
2.31.1