From: Marc Zyngier <maz@kernel.org>
To: linux-arm-kernel@lists.infradead.org,
kvmarm@lists.cs.columbia.edu, kvm@vger.kernel.org,
linux-kernel@vger.kernel.org
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>,
Jason Cooper <jason@lakedaemon.net>,
Robert Richter <rrichter@marvell.com>,
Thomas Gleixner <tglx@linutronix.de>,
Zenghui Yu <yuzenghui@huawei.com>,
Eric Auger <eric.auger@redhat.com>,
James Morse <james.morse@arm.com>,
Julien Thierry <julien.thierry.kdev@gmail.com>,
Suzuki K Poulose <suzuki.poulose@arm.com>
Subject: [PATCH v4 20/20] KVM: arm64: GICv4.1: Expose HW-based SGIs in debugfs
Date: Fri, 14 Feb 2020 14:57:36 +0000 [thread overview]
Message-ID: <20200214145736.18550-21-maz@kernel.org> (raw)
In-Reply-To: <20200214145736.18550-1-maz@kernel.org>
The vgic-state debugfs file could do with showing the pending state
of the HW-backed SGIs. Plug it into the low-level code.
Signed-off-by: Marc Zyngier <maz@kernel.org>
---
virt/kvm/arm/vgic/vgic-debug.c | 14 +++++++++++++-
1 file changed, 13 insertions(+), 1 deletion(-)
diff --git a/virt/kvm/arm/vgic/vgic-debug.c b/virt/kvm/arm/vgic/vgic-debug.c
index cc12fe9b2df3..b13a9e3f99dd 100644
--- a/virt/kvm/arm/vgic/vgic-debug.c
+++ b/virt/kvm/arm/vgic/vgic-debug.c
@@ -178,6 +178,8 @@ static void print_irq_state(struct seq_file *s, struct vgic_irq *irq,
struct kvm_vcpu *vcpu)
{
char *type;
+ bool pending;
+
if (irq->intid < VGIC_NR_SGIS)
type = "SGI";
else if (irq->intid < VGIC_NR_PRIVATE_IRQS)
@@ -190,6 +192,16 @@ static void print_irq_state(struct seq_file *s, struct vgic_irq *irq,
if (irq->intid ==0 || irq->intid == VGIC_NR_PRIVATE_IRQS)
print_header(s, irq, vcpu);
+ pending = irq->pending_latch;
+ if (irq->hw && vgic_irq_is_sgi(irq->intid)) {
+ int err;
+
+ err = irq_get_irqchip_state(irq->host_irq,
+ IRQCHIP_STATE_PENDING,
+ &pending);
+ WARN_ON_ONCE(err);
+ }
+
seq_printf(s, " %s %4d "
" %2d "
"%d%d%d%d%d%d%d "
@@ -201,7 +213,7 @@ static void print_irq_state(struct seq_file *s, struct vgic_irq *irq,
"\n",
type, irq->intid,
(irq->target_vcpu) ? irq->target_vcpu->vcpu_id : -1,
- irq->pending_latch,
+ pending,
irq->line_level,
irq->active,
irq->enabled,
--
2.20.1
prev parent reply other threads:[~2020-02-14 15:21 UTC|newest]
Thread overview: 47+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-14 14:57 [PATCH v4 00/20] irqchip/gic-v4: GICv4.1 architecture support Marc Zyngier
2020-02-14 14:57 ` [PATCH v4 01/20] irqchip/gic-v4.1: Skip absent CPUs while iterating over redistributors Marc Zyngier
2020-02-17 9:11 ` Zenghui Yu
2020-02-14 14:57 ` [PATCH v4 02/20] irqchip/gic-v3: Use SGIs without active state if offered Marc Zyngier
2020-02-17 9:18 ` Zenghui Yu
2020-02-14 14:57 ` [PATCH v4 03/20] irqchip/gic-v4.1: Advertise support v4.1 to KVM Marc Zyngier
2020-02-17 9:09 ` Zenghui Yu
2020-02-14 14:57 ` [PATCH v4 04/20] irqchip/gic-v4.1: Map the ITS SGIR register page Marc Zyngier
2020-02-20 3:17 ` Zenghui Yu
2020-02-14 14:57 ` [PATCH v4 05/20] irqchip/gic-v4.1: Plumb skeletal VSGI irqchip Marc Zyngier
2020-02-20 3:21 ` Zenghui Yu
2020-02-14 14:57 ` [PATCH v4 06/20] irqchip/gic-v4.1: Add initial SGI configuration Marc Zyngier
2020-02-18 7:25 ` Zenghui Yu
2020-02-18 9:46 ` Marc Zyngier
2020-02-20 3:25 ` Zenghui Yu
2020-02-14 14:57 ` [PATCH v4 07/20] irqchip/gic-v4.1: Plumb mask/unmask SGI callbacks Marc Zyngier
2020-02-20 3:32 ` Zenghui Yu
2020-02-14 14:57 ` [PATCH v4 08/20] irqchip/gic-v4.1: Plumb get/set_irqchip_state " Marc Zyngier
2020-02-18 7:00 ` Zenghui Yu
2020-02-18 9:27 ` Marc Zyngier
2020-02-18 15:31 ` Marc Zyngier
2020-02-19 11:50 ` Zenghui Yu
2020-02-19 15:18 ` Zenghui Yu
2020-02-20 3:11 ` Zenghui Yu
2020-02-28 19:37 ` Marc Zyngier
2020-03-01 19:00 ` Marc Zyngier
2020-03-02 8:18 ` Zenghui Yu
2020-03-02 12:09 ` Marc Zyngier
2020-02-14 14:57 ` [PATCH v4 09/20] irqchip/gic-v4.1: Plumb set_vcpu_affinity " Marc Zyngier
2020-02-20 3:37 ` Zenghui Yu
2020-02-28 19:00 ` Marc Zyngier
2020-02-14 14:57 ` [PATCH v4 10/20] irqchip/gic-v4.1: Move doorbell management to the GICv4 abstraction layer Marc Zyngier
2020-02-14 14:57 ` [PATCH v4 11/20] irqchip/gic-v4.1: Add VSGI allocation/teardown Marc Zyngier
2020-02-14 14:57 ` [PATCH v4 12/20] irqchip/gic-v4.1: Add VSGI property setup Marc Zyngier
2020-02-14 14:57 ` [PATCH v4 13/20] irqchip/gic-v4.1: Eagerly vmap vPEs Marc Zyngier
2020-02-14 14:57 ` [PATCH v4 14/20] KVM: arm64: GICv4.1: Let doorbells be auto-enabled Marc Zyngier
2020-02-14 14:57 ` [PATCH v4 15/20] KVM: arm64: GICv4.1: Add direct injection capability to SGI registers Marc Zyngier
2020-02-18 8:46 ` Zenghui Yu
2020-02-18 9:41 ` Marc Zyngier
2020-02-14 14:57 ` [PATCH v4 16/20] KVM: arm64: GICv4.1: Allow SGIs to switch between HW and SW interrupts Marc Zyngier
2020-02-20 3:55 ` Zenghui Yu
2020-02-28 19:16 ` Marc Zyngier
2020-03-02 2:40 ` Zenghui Yu
2020-02-14 14:57 ` [PATCH v4 17/20] KVM: arm64: GICv4.1: Plumb SGI implementation selection in the distributor Marc Zyngier
2020-02-14 14:57 ` [PATCH v4 18/20] KVM: arm64: GICv4.1: Reload VLPI configuration on distributor enable/disable Marc Zyngier
2020-02-14 14:57 ` [PATCH v4 19/20] KVM: arm64: GICv4.1: Allow non-trapping WFI when using HW SGIs Marc Zyngier
2020-02-14 14:57 ` Marc Zyngier [this message]
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