KVM: lapic: Use guest_cpuid_has() in kvm_apic_set_version()

Only code cleanup and no functional change.

Signed-off-by: Xiaoyao Li <xiaoyao.li@intel.com>
Message-Id: <20200708065054.19713-8-xiaoyao.li@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c
index 5bf72fc..e5dbb7e 100644 (file)
--- a/arch/x86/kvm/lapic.c
+++ b/arch/x86/kvm/lapic.c
@@ -354,7 +354,6 @@ static inline int apic_lvt_nmi_mode(u32 lvt_val)
 void kvm_apic_set_version(struct kvm_vcpu *vcpu)
 {
        struct kvm_lapic *apic = vcpu->arch.apic;
-       struct kvm_cpuid_entry2 *feat;
        u32 v = APIC_VERSION;
 
        if (!lapic_in_kernel(vcpu))
@@ -367,8 +366,7 @@ void kvm_apic_set_version(struct kvm_vcpu *vcpu)
         * version first and level-triggered interrupts never get EOIed in
         * IOAPIC.
         */
-       feat = kvm_find_cpuid_entry(apic->vcpu, 0x1, 0);
-       if (feat && (feat->ecx & (1 << (X86_FEATURE_X2APIC & 31))) &&
+       if (guest_cpuid_has(vcpu, X86_FEATURE_X2APIC) &&
            !ioapic_in_kernel(vcpu->kvm))
                v |= APIC_LVR_DIRECTED_EOI;
        kvm_lapic_set_reg(apic, APIC_LVR, v);