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[Qemu-devel] [PULL 11/11] virtio-9p: add savem handlers
From: |
Michael S. Tsirkin |
Subject: |
[Qemu-devel] [PULL 11/11] virtio-9p: add savem handlers |
Date: |
Thu, 12 Nov 2015 17:09:36 +0200 |
From: Greg Kurz <address@hidden>
We don't support migration of mounted 9p shares. This is handled by a
migration blocker.
One would expect, however, to be able to migrate if the share is unmounted.
Unfortunately virtio-9p-device does not register savevm handlers at all !
Migration succeeds and leaves the guest with a dangling device...
This patch simply registers migration handlers for virtio-9p-device. Whether
migration is possible or not still depends on the migration blocker.
Signed-off-by: Greg Kurz <address@hidden>
Reviewed-by: Michael S. Tsirkin <address@hidden>
Signed-off-by: Michael S. Tsirkin <address@hidden>
---
hw/9pfs/virtio-9p-device.c | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/hw/9pfs/virtio-9p-device.c b/hw/9pfs/virtio-9p-device.c
index 93a407c..e3abcfa 100644
--- a/hw/9pfs/virtio-9p-device.c
+++ b/hw/9pfs/virtio-9p-device.c
@@ -43,6 +43,16 @@ static void virtio_9p_get_config(VirtIODevice *vdev, uint8_t
*config)
g_free(cfg);
}
+static void virtio_9p_save(QEMUFile *f, void *opaque)
+{
+ virtio_save(VIRTIO_DEVICE(opaque), f);
+}
+
+static int virtio_9p_load(QEMUFile *f, void *opaque, int version_id)
+{
+ return virtio_load(VIRTIO_DEVICE(opaque), f, version_id);
+}
+
static void virtio_9p_device_realize(DeviceState *dev, Error **errp)
{
VirtIODevice *vdev = VIRTIO_DEVICE(dev);
@@ -130,6 +140,7 @@ static void virtio_9p_device_realize(DeviceState *dev,
Error **errp)
}
v9fs_path_free(&path);
+ register_savevm(dev, "virtio-9p", -1, 1, virtio_9p_save, virtio_9p_load,
s);
return;
out:
g_free(s->ctx.fs_root);
--
MST
- [Qemu-devel] [PULL 01/11] virtio-pci: fix 1.0 virtqueue migration, (continued)
- [Qemu-devel] [PULL 01/11] virtio-pci: fix 1.0 virtqueue migration, Michael S. Tsirkin, 2015/11/12
- [Qemu-devel] [PULL 03/11] KVM: add support for any length io eventfd, Michael S. Tsirkin, 2015/11/12
- [Qemu-devel] [PULL 02/11] memory: don't try to adjust endianness for zero length eventfd, Michael S. Tsirkin, 2015/11/12
- [Qemu-devel] [PULL 04/11] virtio-pci: use zero length mmio eventfd for 1.0 notification cap when possible, Michael S. Tsirkin, 2015/11/12
- [Qemu-devel] [PULL 05/11] virtio-pci: introduce pio notification capability for modern device, Michael S. Tsirkin, 2015/11/12
- [Qemu-devel] [PULL 06/11] virtio-pci: unbreak queue_enable read, Michael S. Tsirkin, 2015/11/12
- [Qemu-devel] [PULL 08/11] vhost: rename RESET_DEVICE backto RESET_OWNER, Michael S. Tsirkin, 2015/11/12
- [Qemu-devel] [PULL 09/11] vhost: send SET_VRING_ENABLE at start/stop, Michael S. Tsirkin, 2015/11/12
- [Qemu-devel] [PULL 07/11] vhost-user: modify SET_LOG_BASE to pass mmap size and offset, Michael S. Tsirkin, 2015/11/12
- [Qemu-devel] [PULL 10/11] hw/virtio: Add PCIe capability to virtio devices, Michael S. Tsirkin, 2015/11/12
- [Qemu-devel] [PULL 11/11] virtio-9p: add savem handlers,
Michael S. Tsirkin <=
- Re: [Qemu-devel] [PULL 00/11] virtio, vhost: fixes for 2.5, Peter Maydell, 2015/11/12