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[PATCH v8 11/11] hw/s390x/ipl: replace deprecated qdev_reset_all registr

From: Damien Hedde
Subject: [PATCH v8 11/11] hw/s390x/ipl: replace deprecated qdev_reset_all registration
Date: Thu, 23 Jan 2020 14:28:23 +0100

Replace deprecated qdev_reset_all by resettable_cold_reset_fn for
the ipl registration in the main reset handlers.

This does not impact the behavior for the following reasons:
+ at this point resettable just call the old reset methods of devices
  and buses in the same order than qdev/qbus.
+ resettable handlers registered with qemu_register_reset are
  serialized; there is no interleaving.
+ eventual explicit calls to legacy reset API (device_reset or
  qdev/qbus_reset) inside this reset handler will not be masked out
  by resettable mechanism; they do not go through resettable api.

Signed-off-by: Damien Hedde <address@hidden>
Reviewed-by: Philippe Mathieu-Daudé <address@hidden>
Reviewed-by: Peter Maydell <address@hidden>
Reviewed-by: Cornelia Huck <address@hidden>
Reviewed-by: Richard Henderson <address@hidden>
Cc: address@hidden
Cc: Christian Borntraeger <address@hidden>
Cc: Thomas Huth <address@hidden>
 hw/s390x/ipl.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/hw/s390x/ipl.c b/hw/s390x/ipl.c
index ca544d64c5..2689f7a017 100644
--- a/hw/s390x/ipl.c
+++ b/hw/s390x/ipl.c
@@ -237,7 +237,15 @@ static void s390_ipl_realize(DeviceState *dev, Error 
     ipl->compat_start_addr = ipl->start_addr;
     ipl->compat_bios_start_addr = ipl->bios_start_addr;
-    qemu_register_reset(qdev_reset_all_fn, dev);
+    /*
+     * Because this Device is not on any bus in the qbus tree (it is
+     * not a sysbus device and it's not on some other bus like a PCI
+     * bus) it will not be automatically reset by the 'reset the
+     * sysbus' hook registered by vl.c like most devices. So we must
+     * manually register a reset hook for it.
+     * TODO: there should be a better way to do this.
+     */
+    qemu_register_reset(resettable_cold_reset_fn, dev);
     error_propagate(errp, err);

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