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Re: [Qemu-devel] [PATCH] balloon: Fix failure of updating guest memory s
From: |
Li, Liang Z |
Subject: |
Re: [Qemu-devel] [PATCH] balloon: Fix failure of updating guest memory status |
Date: |
Fri, 1 Jul 2016 08:43:57 +0000 |
> > + if (s->stats_vq_elem == NULL) {
> > + virtqueue_push(s->svq, &elem, 0);
> > + virtio_notify(vdev, s->svq);
> > + return;
> > + }
> > virtqueue_push(s->svq, s->stats_vq_elem, s->stats_vq_offset);
> > virtio_notify(vdev, s->svq);
> > g_free(s->stats_vq_elem);
> >
>
> Hi, the right fix is to migrate s->stats_vq_elem if it is not NULL. See how
> it's
> done in hw/char/virtio-serial.c's virtio_serial_save_device
> (save) and fetch_active_ports_list (load).
>
> Paolo
Hi Paolo,
If we try to migrate ' migrate s->stats_vq_elem ', how to make it works with
the old version ?
with a new feature bit? Or with some version control?
Thanks!
Liang
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Li, Liang Z <=