Dump the passthrough irqmap structure associated with a
guest as part of /sys/kernel/debug/powerpc/kvm-xics-*.
Signed-off-by: Suresh Warrier <warrier@xxxxxxxxxxxxxxxxxx>
---
arch/powerpc/kvm/book3s_xics.c | 17 +++++++++++++++++
1 file changed, 17 insertions(+)
diff --git a/arch/powerpc/kvm/book3s_xics.c b/arch/powerpc/kvm/book3s_xics.c
index b90570c..855d669 100644
--- a/arch/powerpc/kvm/book3s_xics.c
+++ b/arch/powerpc/kvm/book3s_xics.c
@@ -905,6 +905,21 @@ EXPORT_SYMBOL_GPL(kvmppc_xics_hcall);
/* -- Initialisation code etc. -- */
+static void xics_debugfs_irqmap(struct seq_file *m,
+ struct kvmppc_passthru_irqmap *pimap)
+{
+ int i;
+
+ if (!pimap)
+ return;
+ seq_printf(m, "========\nPIRQMAP Cache: %d maps\n===========\n",
+ pimap->n_cached);
+ for (i = 0; i < pimap->n_cached; i++) {
+ seq_printf(m, "r_hwirq=%x, v_hwirq=%x\n",
+ pimap->cached[i].r_hwirq, pimap->cached[i].v_hwirq);
+ }
+}
+
static int xics_debug_show(struct seq_file *m, void *private)
{
struct kvmppc_xics *xics = m->private;
@@ -926,6 +941,8 @@ static int xics_debug_show(struct seq_file *m, void *private)
t_check_resend = 0;
t_reject = 0;
+ xics_debugfs_irqmap(m, kvm->arch.pimap);
+
seq_printf(m, "=========\nICP state\n=========\n");
kvm_for_each_vcpu(i, vcpu, kvm) {
--
1.8.3.4
--
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