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From 1b270931bb1743918638b9e6f003b2f2a95f0685 Mon Sep 17 00:00:00 2001
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From: Cornelia Huck <cohuck@redhat.com>
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Date: Wed, 17 Apr 2019 13:57:35 +0100
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Subject: [PATCH 18/24] s390x/pci: mark zpci devices as unmigratable
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RH-Author: Cornelia Huck <cohuck@redhat.com>
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Message-id: <20190417135741.25297-19-cohuck@redhat.com>
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Patchwork-id: 85796
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O-Subject: [RHEL-8.1.0 qemu-kvm PATCH v2 18/24] s390x/pci: mark zpci devices as unmigratable
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Bugzilla: 1699070
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RH-Acked-by: David Hildenbrand <david@redhat.com>
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RH-Acked-by: Thomas Huth <thuth@redhat.com>
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RH-Acked-by: Jens Freimann <jfreimann@redhat.com>
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We currently don't migrate any state for zpci devices, which are
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coupled with standard pci devices. This means funny things happen
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when we e.g. try to migrate with a virtio-pci device but the s390x-
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specific zpci state is not migrated (vfio-pci is not affected, as
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it is not migratable anyway.)
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Until this is fixed, mark zpci devices as unmigratable.
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Reported-by: David Hildenbrand <david@redhat.com>
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Reviewed-by: David Hildenbrand <david@redhat.com>
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Reviewed-by: Collin Walling <walling@linux.ibm.com>
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Signed-off-by: Cornelia Huck <cohuck@redhat.com>
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(cherry picked from commit aede5d5dfc5f3e4ea7467b28c51fda2f8945d117)
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Signed-off-by: Cornelia Huck <cohuck@redhat.com>
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Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
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---
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hw/s390x/s390-pci-bus.c | 10 ++++++++++
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1 file changed, 10 insertions(+)
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diff --git a/hw/s390x/s390-pci-bus.c b/hw/s390x/s390-pci-bus.c
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index 97d3eb8..07a286a 100644
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--- a/hw/s390x/s390-pci-bus.c
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+++ b/hw/s390x/s390-pci-bus.c
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@@ -1256,6 +1256,15 @@ static Property s390_pci_device_properties[] = {
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DEFINE_PROP_END_OF_LIST(),
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};
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+static const VMStateDescription s390_pci_device_vmstate = {
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+ .name = TYPE_S390_PCI_DEVICE,
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+ /*
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+ * TODO: add state handling here, so migration works at least with
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+ * emulated pci devices on s390x
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+ */
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+ .unmigratable = 1,
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+};
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+
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static void s390_pci_device_class_init(ObjectClass *klass, void *data)
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{
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DeviceClass *dc = DEVICE_CLASS(klass);
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@@ -1266,6 +1275,7 @@ static void s390_pci_device_class_init(ObjectClass *klass, void *data)
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dc->bus_type = TYPE_S390_PCI_BUS;
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dc->realize = s390_pci_device_realize;
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dc->props = s390_pci_device_properties;
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+ dc->vmsd = &s390_pci_device_vmstate;
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}
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static const TypeInfo s390_pci_device_info = {
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--
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1.8.3.1
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