diff options
| author | Marc Zyngier <maz@kernel.org> | 2020-03-04 21:33:30 +0100 |
|---|---|---|
| committer | Marc Zyngier <maz@kernel.org> | 2020-03-24 13:15:52 +0100 |
| commit | dab4fe3bf6dd87a7d6dbab2c929afd1ef62a120b (patch) | |
| tree | 564d6eb80dba080ce69a307b1804e82ecafd2ed8 /virt/kvm | |
| parent | KVM: arm64: GICv4.1: Allow non-trapping WFI when using HW SGIs (diff) | |
| download | linux-dab4fe3bf6dd87a7d6dbab2c929afd1ef62a120b.tar.xz linux-dab4fe3bf6dd87a7d6dbab2c929afd1ef62a120b.zip | |
KVM: arm64: GICv4.1: Expose HW-based SGIs in debugfs
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>
Reviewed-by: Zenghui Yu <yuzenghui@huawei.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Link: https://lore.kernel.org/r/20200304203330.4967-24-maz@kernel.org
Diffstat (limited to 'virt/kvm')
| -rw-r--r-- | virt/kvm/arm/vgic/vgic-debug.c | 14 |
1 files changed, 13 insertions, 1 deletions
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, |