linux-kernel - [PATCH 2/3] KVM: x86: consolidate "has lapic" checks into irq.c

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Date:	Mon,  8 Feb 2016 17:15:45 +0100
From:	Paolo Bonzini <pbonzini@...hat.com>
To:	linux-kernel@...r.kernel.org, kvm@...r.kernel.org
Cc:	rkrcmar@...hat.com
Subject: [PATCH 2/3] KVM: x86: consolidate "has lapic" checks into irq.c

Do for kvm_cpu_has_pending_timer and kvm_inject_pending_timer_irqs
what the other irq.c routines have been doing.

Signed-off-by: Paolo Bonzini <pbonzini@...hat.com>
---
 arch/x86/kvm/irq.c   | 9 ++++++---
 arch/x86/kvm/lapic.c | 6 +-----
 2 files changed, 7 insertions(+), 8 deletions(-)

diff --git a/arch/x86/kvm/irq.c b/arch/x86/kvm/irq.c
index 3982b479bb5f..4056007e9fe1 100644
--- a/arch/x86/kvm/irq.c
+++ b/arch/x86/kvm/irq.c
@@ -33,7 +33,10 @@
  */
 int kvm_cpu_has_pending_timer(struct kvm_vcpu *vcpu)
 {
-	return apic_has_pending_timer(vcpu);
+	if (lapic_in_kernel(vcpu))
+		return apic_has_pending_timer(vcpu);
+
+	return true;
 }
 EXPORT_SYMBOL(kvm_cpu_has_pending_timer);
 
@@ -137,8 +140,8 @@ EXPORT_SYMBOL_GPL(kvm_cpu_get_interrupt);
 
 void kvm_inject_pending_timer_irqs(struct kvm_vcpu *vcpu)
 {
-	kvm_inject_apic_timer_irqs(vcpu);
-	/* TODO: PIT, RTC etc. */
+	if (lapic_in_kernel(vcpu))
+		kvm_inject_apic_timer_irqs(vcpu);
 }
 EXPORT_SYMBOL_GPL(kvm_inject_pending_timer_irqs);
 
diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c
index b1029051f664..57e3f27bdadb 100644
--- a/arch/x86/kvm/lapic.c
+++ b/arch/x86/kvm/lapic.c
@@ -1801,8 +1801,7 @@ int apic_has_pending_timer(struct kvm_vcpu *vcpu)
 {
 	struct kvm_lapic *apic = vcpu->arch.apic;
 
-	if (kvm_vcpu_has_lapic(vcpu) && apic_enabled(apic) &&
-			apic_lvt_enabled(apic, APIC_LVTT))
+	if (apic_enabled(apic) && apic_lvt_enabled(apic, APIC_LVTT))
 		return atomic_read(&apic->lapic_timer.pending);
 
 	return 0;
@@ -1927,9 +1926,6 @@ void kvm_inject_apic_timer_irqs(struct kvm_vcpu *vcpu)
 {
 	struct kvm_lapic *apic = vcpu->arch.apic;
 
-	if (!kvm_vcpu_has_lapic(vcpu))
-		return;
-
 	if (atomic_read(&apic->lapic_timer.pending) > 0) {
 		kvm_apic_local_deliver(apic, APIC_LVTT);
 		if (apic_lvtt_tscdeadline(apic))
-- 
1.8.3.1