linux-kernel - [RFC PATCH 8/8] svm: Allow AVIC with in-kernel irqchip mode

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Date:   Mon, 4 Feb 2019 14:42:32 +0000
From:   "Suthikulpanit, Suravee" <Suravee.Suthikulpanit@....com>
To:     "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "kvm@...r.kernel.org" <kvm@...r.kernel.org>,
        "x86@...nel.org" <x86@...nel.org>
CC:     "joro@...tes.org" <joro@...tes.org>,
        "rkrcmar@...hat.com" <rkrcmar@...hat.com>,
        "pbonzini@...hat.com" <pbonzini@...hat.com>,
        "tglx@...utronix.de" <tglx@...utronix.de>,
        "mingo@...hat.com" <mingo@...hat.com>,
        "bp@...en8.de" <bp@...en8.de>, "hpa@...or.com" <hpa@...or.com>,
        "jsteckli@...zon.de" <jsteckli@...zon.de>,
        "sironi@...zon.de" <sironi@...zon.de>,
        "wawei@...zon.de" <wawei@...zon.de>,
        "Suthikulpanit, Suravee" <Suravee.Suthikulpanit@....com>
Subject: [RFC PATCH 8/8] svm: Allow AVIC with in-kernel irqchip mode

Once the IRQ ack notifier for in-kernel PIT is no longer required
and run-time AVIC activate/deactivate is supported, we can remove
the kernel irqchip split mode requirement for AVIC.

Hence, remove the check for irqchip split mode when enabling AVIC.

Cc: Radim Krčmář <rkrcmar@...hat.com>
Cc: Paolo Bonzini <pbonzini@...hat.com>
Signed-off-by: Suravee Suthikulpanit <suravee.suthikulpanit@....com>
---
 arch/x86/kvm/svm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index 580ab40ba207..24dfa6a93711 100644
--- a/arch/x86/kvm/svm.c
+++ b/arch/x86/kvm/svm.c
@@ -5157,7 +5157,7 @@ static void svm_set_virtual_apic_mode(struct kvm_vcpu *vcpu)
 
 static bool svm_get_enable_apicv(struct kvm_vcpu *vcpu)
 {
-	return avic && irqchip_split(vcpu->kvm);
+	return avic;
 }
 
 static void svm_hwapic_irr_update(struct kvm_vcpu *vcpu, int max_irr)
-- 
2.17.1