haraldwolff/qemu-patch-raspberry4
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virtio-balloon: Add exit handler, fix memleaks

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Add an exit handler that will free up RAM after a virtio-balloon device
is unplugged.

Signed-off-by: Amit Shah <amit.shah@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Amit Shah 2011-07-27 13:50:41 +05:30 committed by Anthony Liguori
parent 514e73eceb
commit 855d7e259f
3 changed files with 16 additions and 1 deletions
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5
hw/virtio-balloon.c
View file

@ -297,3 +297,8 @@ VirtIODevice *virtio_balloon_init(DeviceState *dev)
return &s->vdev;
}
void virtio_balloon_exit(VirtIODevice *vdev)
{
virtio_cleanup(vdev);
}

11
hw/virtio-pci.c
View file

@ -795,6 +795,15 @@ static int virtio_balloon_init_pci(PCIDevice *pci_dev)
return 0;
}
static int virtio_balloon_exit_pci(PCIDevice *pci_dev)
{
VirtIOPCIProxy *proxy = DO_UPCAST(VirtIOPCIProxy, pci_dev, pci_dev);
virtio_pci_stop_ioeventfd(proxy);
virtio_balloon_exit(proxy->vdev);
return virtio_exit_pci(pci_dev);
}
static PCIDeviceInfo virtio_info[] = {
{
.qdev.name = "virtio-blk-pci",
@ -869,7 +878,7 @@ static PCIDeviceInfo virtio_info[] = {
.qdev.alias = "virtio-balloon",
.qdev.size = sizeof(VirtIOPCIProxy),
.init = virtio_balloon_init_pci,
.exit = virtio_exit_pci,
.exit = virtio_balloon_exit_pci,
.vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET,
.device_id = PCI_DEVICE_ID_VIRTIO_BALLOON,
.revision = VIRTIO_PCI_ABI_VERSION,

1
hw/virtio.h
View file

@ -213,6 +213,7 @@ 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);
void virtio_balloon_exit(VirtIODevice *vdev);
#define DEFINE_VIRTIO_COMMON_FEATURES(_state, _field) \
DEFINE_PROP_BIT("indirect_desc", _state, _field, \