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KVM: arm64: GICv4.1: Expose HW-based SGIs in debugfs

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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
This commit is contained in:
Marc Zyngier 2020-03-04 20:33:30 +00:00
parent 7bdabad127
commit dab4fe3bf6
1 changed files with 13 additions and 1 deletions
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14
virt/kvm/arm/vgic/vgic-debug.c
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@ -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,