linux-kernel - [PATCH v2 1/2] KVM: LAPIC: Return 0 when getting the tscdeadline timer if the lapic is hw disabled

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Message-Id: <1597213838-8847-1-git-send-email-wanpengli@tencent.com>
Date:   Wed, 12 Aug 2020 14:30:37 +0800
From:   Wanpeng Li <kernellwp@...il.com>
To:     linux-kernel@...r.kernel.org, kvm@...r.kernel.org
Cc:     Paolo Bonzini <pbonzini@...hat.com>,
        Sean Christopherson <sean.j.christopherson@...el.com>,
        Vitaly Kuznetsov <vkuznets@...hat.com>,
        Wanpeng Li <wanpengli@...cent.com>,
        Jim Mattson <jmattson@...gle.com>,
        Joerg Roedel <joro@...tes.org>
Subject: [PATCH v2 1/2] KVM: LAPIC: Return 0 when getting the tscdeadline timer if the lapic is hw disabled

From: Wanpeng Li <wanpengli@...cent.com>

Return 0 when getting the tscdeadline timer if the lapic is hw disabled.

Suggested-by: Paolo Bonzini <pbonzini@...hat.com>
Signed-off-by: Wanpeng Li <wanpengli@...cent.com>
---
v1 -> v2:
 * fix indentation

 arch/x86/kvm/lapic.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c
index 5ccbee7..79599af 100644
--- a/arch/x86/kvm/lapic.c
+++ b/arch/x86/kvm/lapic.c
@@ -2183,8 +2183,7 @@ u64 kvm_get_lapic_tscdeadline_msr(struct kvm_vcpu *vcpu)
 {
 	struct kvm_lapic *apic = vcpu->arch.apic;
 
-	if (!lapic_in_kernel(vcpu) ||
-		!apic_lvtt_tscdeadline(apic))
+	if (!kvm_apic_present(vcpu) || !apic_lvtt_tscdeadline(apic))
 		return 0;
 
 	return apic->lapic_timer.tscdeadline;
-- 
2.7.4