Access KVM's emulated APIC base MSR value directly instead of bouncing through a helper, as there is no reason to add a layer of indirection, and there are other MSRs with a "set" but no "get", e.g. EFER. No functional change intended. Reviewed-by: Kai Huang <kai.huang@xxxxxxxxx> Reviewed-by: Paolo Bonzini <pbonzini@xxxxxxxxxx> Link: https://lore.kernel.org/r/20241009181742.1128779-4-seanjc@xxxxxxxxxx Signed-off-by: Sean Christopherson <seanjc@xxxxxxxxxx> --- arch/x86/kvm/lapic.h | 1 - arch/x86/kvm/x86.c | 13 ++++--------- 2 files changed, 4 insertions(+), 10 deletions(-) diff --git a/arch/x86/kvm/lapic.h b/arch/x86/kvm/lapic.h index 1b8ef9856422..441abc4f4afd 100644 --- a/arch/x86/kvm/lapic.h +++ b/arch/x86/kvm/lapic.h @@ -117,7 +117,6 @@ bool kvm_irq_delivery_to_apic_fast(struct kvm *kvm, struct kvm_lapic *src, struct kvm_lapic_irq *irq, int *r, struct dest_map *dest_map); void kvm_apic_send_ipi(struct kvm_lapic *apic, u32 icr_low, u32 icr_high); -u64 kvm_get_apic_base(struct kvm_vcpu *vcpu); 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); diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index e45040c2bf03..118e6eba35ba 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -668,14 +668,9 @@ static void drop_user_return_notifiers(void) kvm_on_user_return(&msrs->urn); } -u64 kvm_get_apic_base(struct kvm_vcpu *vcpu) -{ - return vcpu->arch.apic_base; -} - enum lapic_mode kvm_get_apic_mode(struct kvm_vcpu *vcpu) { - return kvm_apic_mode(kvm_get_apic_base(vcpu)); + return kvm_apic_mode(vcpu->arch.apic_base); } EXPORT_SYMBOL_GPL(kvm_get_apic_mode); @@ -4315,7 +4310,7 @@ int kvm_get_msr_common(struct kvm_vcpu *vcpu, struct msr_data *msr_info) msr_info->data = 1 << 24; break; case MSR_IA32_APICBASE: - msr_info->data = kvm_get_apic_base(vcpu); + msr_info->data = vcpu->arch.apic_base; break; case APIC_BASE_MSR ... APIC_BASE_MSR + 0xff: return kvm_x2apic_msr_read(vcpu, msr_info->index, &msr_info->data); @@ -10173,7 +10168,7 @@ static void post_kvm_run_save(struct kvm_vcpu *vcpu) kvm_run->if_flag = kvm_x86_call(get_if_flag)(vcpu); kvm_run->cr8 = kvm_get_cr8(vcpu); - kvm_run->apic_base = kvm_get_apic_base(vcpu); + kvm_run->apic_base = vcpu->arch.apic_base; kvm_run->ready_for_interrupt_injection = pic_in_kernel(vcpu->kvm) || @@ -11725,7 +11720,7 @@ static void __get_sregs_common(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs) sregs->cr4 = kvm_read_cr4(vcpu); sregs->cr8 = kvm_get_cr8(vcpu); sregs->efer = vcpu->arch.efer; - sregs->apic_base = kvm_get_apic_base(vcpu); + sregs->apic_base = vcpu->arch.apic_base; } static void __get_sregs(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs) -- 2.47.0.163.g1226f6d8fa-goog
