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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>
This commit is contained in:
Matthew Rosato 2020-10-15 09:16:07 -04:00 committed by Cornelia Huck
parent 4c5b97bfd0
commit db08244a3a
1 changed files with 1 additions and 0 deletions
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hw/s390x/s390-virtio-ccw.c
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@ -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)