[PATCH 4/7] KVM: x86: Inline kvm_get_apic_mode() in lapic.h

From: Sean Christopherson
Date: Wed Oct 09 2024 - 14:19:09 EST


Inline kvm_get_apic_mode() in lapic.h to avoid a CALL+RET as well as an
export. The underlying kvm_apic_mode() helper is public information, i.e.
there is no state/information that needs to be hidden from vendor modules.

No functional change intended.

Signed-off-by: Sean Christopherson <seanjc@xxxxxxxxxx>
---
arch/x86/kvm/lapic.h | 6 +++++-
arch/x86/kvm/x86.c | 6 ------
2 files changed, 5 insertions(+), 7 deletions(-)

diff --git a/arch/x86/kvm/lapic.h b/arch/x86/kvm/lapic.h
index 441abc4f4afd..fc4bd36d44cf 100644
--- a/arch/x86/kvm/lapic.h
+++ b/arch/x86/kvm/lapic.h
@@ -120,7 +120,6 @@ void kvm_apic_send_ipi(struct kvm_lapic *apic, u32 icr_low, u32 icr_high);
int kvm_set_apic_base(struct kvm_vcpu *vcpu, struct msr_data *msr_info);
int kvm_apic_get_state(struct kvm_vcpu *vcpu, struct kvm_lapic_state *s);
int kvm_apic_set_state(struct kvm_vcpu *vcpu, struct kvm_lapic_state *s);
-enum lapic_mode kvm_get_apic_mode(struct kvm_vcpu *vcpu);
int kvm_lapic_find_highest_irr(struct kvm_vcpu *vcpu);

u64 kvm_get_lapic_tscdeadline_msr(struct kvm_vcpu *vcpu);
@@ -270,6 +269,11 @@ static inline enum lapic_mode kvm_apic_mode(u64 apic_base)
return apic_base & (MSR_IA32_APICBASE_ENABLE | X2APIC_ENABLE);
}

+static inline enum lapic_mode kvm_get_apic_mode(struct kvm_vcpu *vcpu)
+{
+ return kvm_apic_mode(vcpu->arch.apic_base);
+}
+
static inline u8 kvm_xapic_id(struct kvm_lapic *apic)
{
return kvm_lapic_get_reg(apic, APIC_ID) >> 24;
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 046cb7513436..c70ee3b33b93 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -667,12 +667,6 @@ static void drop_user_return_notifiers(void)
kvm_on_user_return(&msrs->urn);
}

-enum lapic_mode kvm_get_apic_mode(struct kvm_vcpu *vcpu)
-{
- return kvm_apic_mode(vcpu->arch.apic_base);
-}
-EXPORT_SYMBOL_GPL(kvm_get_apic_mode);
-
int kvm_set_apic_base(struct kvm_vcpu *vcpu, struct msr_data *msr_info)
{
enum lapic_mode old_mode = kvm_get_apic_mode(vcpu);
--
2.47.0.rc1.288.g06298d1525-goog