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| author | Amit Shah <amit.shah@redhat.com> | 2010-08-19 06:51:04 +0530 |
|---|---|---|
| committer | Anthony Liguori <aliguori@us.ibm.com> | 2010-08-22 16:19:00 -0500 |
| commit | 8b53a865772789a3402a44aa80169f8dd728eba2 (patch) | |
| tree | 8b631a97e84bff356a61a2664faff2f92501b577 | |
| parent | 583cd3cb93649ef223e36bf33197de65c3d9767b (diff) | |
| download | qemu-8b53a865772789a3402a44aa80169f8dd728eba2.zip qemu-8b53a865772789a3402a44aa80169f8dd728eba2.tar.gz qemu-8b53a865772789a3402a44aa80169f8dd728eba2.tar.bz2 | |
virtio-serial: Cleanup on device hot-unplug
Free malloc'ed memory, unregister from savevm and clean up virtio-common
bits on device hot-unplug.
This was found performing a migration after device hot-unplug.
Reported-by: <lihuang@redhat.com>
Signed-off-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
| -rw-r--r-- | hw/virtio-pci.c | 10 | ||||
| -rw-r--r-- | hw/virtio-serial-bus.c | 17 | ||||
| -rw-r--r-- | hw/virtio.h | 1 |
3 files changed, 27 insertions, 1 deletions
diff --git a/hw/virtio-pci.c b/hw/virtio-pci.c index 17c3d15..82a6d78 100644 --- a/hw/virtio-pci.c +++ b/hw/virtio-pci.c @@ -599,6 +599,14 @@ static int virtio_serial_init_pci(PCIDevice *pci_dev) return 0; } +static int virtio_serial_exit_pci(PCIDevice *pci_dev) +{ + VirtIOPCIProxy *proxy = DO_UPCAST(VirtIOPCIProxy, pci_dev, pci_dev); + + virtio_serial_exit(proxy->vdev); + return virtio_exit_pci(pci_dev); +} + static int virtio_net_init_pci(PCIDevice *pci_dev) { VirtIOPCIProxy *proxy = DO_UPCAST(VirtIOPCIProxy, pci_dev, pci_dev); @@ -689,7 +697,7 @@ static PCIDeviceInfo virtio_info[] = { .qdev.alias = "virtio-serial", .qdev.size = sizeof(VirtIOPCIProxy), .init = virtio_serial_init_pci, - .exit = virtio_exit_pci, + .exit = virtio_serial_exit_pci, .qdev.props = (Property[]) { DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors, DEV_NVECTORS_UNSPECIFIED), diff --git a/hw/virtio-serial-bus.c b/hw/virtio-serial-bus.c index 0586b89..74ba5ec 100644 --- a/hw/virtio-serial-bus.c +++ b/hw/virtio-serial-bus.c @@ -41,6 +41,8 @@ struct VirtIOSerial { VirtIOSerialBus *bus; + DeviceState *qdev; + QTAILQ_HEAD(, VirtIOSerialPort) ports; /* bitmap for identifying active ports */ @@ -792,6 +794,8 @@ VirtIODevice *virtio_serial_init(DeviceState *dev, uint32_t max_nr_ports) vser->vdev.get_config = get_config; vser->vdev.set_config = set_config; + vser->qdev = dev; + /* * Register for the savevm section with the virtio-console name * to preserve backward compat @@ -801,3 +805,16 @@ VirtIODevice *virtio_serial_init(DeviceState *dev, uint32_t max_nr_ports) return vdev; } + +void virtio_serial_exit(VirtIODevice *vdev) +{ + VirtIOSerial *vser = DO_UPCAST(VirtIOSerial, vdev, vdev); + + unregister_savevm(vser->qdev, "virtio-console", vser); + + qemu_free(vser->ivqs); + qemu_free(vser->ovqs); + qemu_free(vser->ports_map); + + virtio_cleanup(vdev); +} diff --git a/hw/virtio.h b/hw/virtio.h index 30e472a..5836ab6 100644 --- a/hw/virtio.h +++ b/hw/virtio.h @@ -195,6 +195,7 @@ VirtIODevice *virtio_9p_init(DeviceState *dev, V9fsConf *conf); void virtio_net_exit(VirtIODevice *vdev); void virtio_blk_exit(VirtIODevice *vdev); +void virtio_serial_exit(VirtIODevice *vdev); #define DEFINE_VIRTIO_COMMON_FEATURES(_state, _field) \ DEFINE_PROP_BIT("indirect_desc", _state, _field, \ |