spapr/irq: Inform the user when falling back to emulated IC

Just to give an indication to the user that the error condition is
handled and how.

Reported-by: Satheesh Rajendran <sathnaga@linux.vnet.ibm.com>
Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <156398743479.546975.14566809803480887488.stgit@bahia.lan>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>

diff --git a/hw/ppc/spapr_irq.c b/hw/ppc/spapr_irq.c
index ff3df0b..d07aed8 100644 (file)
--- a/hw/ppc/spapr_irq.c
+++ b/hw/ppc/spapr_irq.c
@@ -86,6 +86,7 @@ static void spapr_irq_init_kvm(SpaprMachineState *spapr,
          * emulated mode
          */
         error_prepend(&local_err, "kernel_irqchip allowed but unavailable: ");
+        error_append_hint(&local_err, "Falling back to kernel-irqchip=off\n");
         warn_report_err(local_err);
     }
 }