linux-kernel - [PATCH v3 47/59] KVM: arm/arm64: GICv4: Propagate property updates to VLPIs

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Message-Id: <20170731172637.29355-48-marc.zyngier@arm.com>
Date:   Mon, 31 Jul 2017 18:26:25 +0100
From:   Marc Zyngier <marc.zyngier@....com>
To:     linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        kvmarm@...ts.cs.columbia.edu, kvm@...r.kernel.org
Cc:     Christoffer Dall <christoffer.dall@...aro.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Jason Cooper <jason@...edaemon.net>,
        Eric Auger <eric.auger@...hat.com>,
        Shanker Donthineni <shankerd@...eaurora.org>,
        Mark Rutland <mark.rutland@....com>,
        Shameerali Kolothum Thodi 
        <shameerali.kolothum.thodi@...wei.com>
Subject: [PATCH v3 47/59] KVM: arm/arm64: GICv4: Propagate property updates to VLPIs

Upon updating a property, we propagate it all the way to the physical
ITS, and ask for an INV command to be executed there.

Signed-off-by: Marc Zyngier <marc.zyngier@....com>
---
 virt/kvm/arm/vgic/vgic-its.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/virt/kvm/arm/vgic/vgic-its.c b/virt/kvm/arm/vgic/vgic-its.c
index 65cc77fde609..9e46081e5f15 100644
--- a/virt/kvm/arm/vgic/vgic-its.c
+++ b/virt/kvm/arm/vgic/vgic-its.c
@@ -297,6 +297,9 @@ static int update_lpi_config(struct kvm *kvm, struct vgic_irq *irq,
 		spin_unlock(&irq->irq_lock);
 	}
 
+	if (irq->hw)
+		return its_prop_update_vlpi(irq->host_irq, prop, true);
+
 	return 0;
 }
 
-- 
2.11.0