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KVM: lapic: don't recalculate apic map table twice when enabling LAPIC

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APIC map table is recalculated during reset APIC ID to the initial value
when enabling LAPIC. This patch move the recalculate_apic_map() to the
next branch since we don't need to recalculate apic map twice in current
codes.

Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Radim Krčmář <rkrcmar@redhat.com>
Signed-off-by: Wanpeng Li <wanpeng.li@hotmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Wanpeng Li 2016-08-03 12:04:13 +08:00 committed by Paolo Bonzini
parent ba913e4f72
commit 187ca84b4b
1 changed files with 3 additions and 2 deletions
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5
arch/x86/kvm/lapic.c
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@ -1761,9 +1761,10 @@ void kvm_lapic_set_base(struct kvm_vcpu *vcpu, u64 value)
if (value & MSR_IA32_APICBASE_ENABLE) { if (value & MSR_IA32_APICBASE_ENABLE) {
kvm_apic_set_xapic_id(apic, vcpu->vcpu_id); kvm_apic_set_xapic_id(apic, vcpu->vcpu_id);
static_key_slow_dec_deferred(&apic_hw_disabled); static_key_slow_dec_deferred(&apic_hw_disabled);
} else } else {
static_key_slow_inc(&apic_hw_disabled.key); static_key_slow_inc(&apic_hw_disabled.key);
recalculate_apic_map(vcpu->kvm); recalculate_apic_map(vcpu->kvm);
}
} }
if ((old_value ^ value) & X2APIC_ENABLE) { if ((old_value ^ value) & X2APIC_ENABLE) {