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[PULL 1/3] s390x/s390-virtio-ccw: Reset PCI devices during subsystem res

From: Cornelia Huck
Subject: [PULL 1/3] s390x/s390-virtio-ccw: Reset PCI devices during subsystem reset
Date: Mon, 26 Oct 2020 12:13:45 +0100

From: Matthew Rosato <mjrosato@linux.ibm.com>

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>
 hw/s390x/s390-virtio-ccw.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/hw/s390x/s390-virtio-ccw.c b/hw/s390x/s390-virtio-ccw.c
index e52182f94633..2e900335eaba 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[] = {
 static void subsystem_reset(void)

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