From: Matthew Rosato <mjrosato@linux.ibm.com>
Date: Thu, 15 Oct 2020 13:16:07 +0000 (-0400)
Subject: s390x/s390-virtio-ccw: Reset PCI devices during subsystem reset
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=db08244a3a7ec312dfed3fd9b88e114281215458;p=qemu.git

s390x/s390-virtio-ccw: Reset PCI devices during subsystem reset

Currently, a subsystem reset event leaves PCI devices enabled, causing
issues post-reset in the guest (an example would be after a kexec).  These
devices need to be reset during a subsystem reset, allowing them to be
properly re-enabled afterwards.  Add the S390 PCI host bridge to the list
of qdevs to be reset during subsystem reset.

Signed-off-by: Matthew Rosato <mjrosato@linux.ibm.com>
Reviewed-by: Eric Farman <farman@linux.ibm.com>
Acked-by: Halil Pasic <pasic@linux.ibm.com>
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: qemu-stable@nongnu.org
Message-Id: <1602767767-32713-1-git-send-email-mjrosato@linux.ibm.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
---

diff --git a/hw/s390x/s390-virtio-ccw.c b/hw/s390x/s390-virtio-ccw.c
index e52182f946..2e900335ea 100644
--- a/hw/s390x/s390-virtio-ccw.c
+++ b/hw/s390x/s390-virtio-ccw.c
@@ -101,6 +101,7 @@ static const char *const reset_dev_types[] = {
     "s390-sclp-event-facility",
     "s390-flic",
     "diag288",
+    TYPE_S390_PCI_HOST_BRIDGE,
 };
 
 static void subsystem_reset(void)