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qemu:virtio-net: Save status and add some save infrastructure (Alex Williamson)

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The status register should probably be saved since its guest visible.
Also add a little bit if infrastructure for handling various save
revisions.

Signed-off-by: Alex Williamson <alex.williamson@hp.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6533 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
aliguori 2009-02-05 22:36:04 +00:00
parent b580763f86
commit 9d6271b8a0
1 changed files with 8 additions and 2 deletions
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10
hw/virtio-net.c
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@ -16,6 +16,8 @@
#include "qemu-timer.h"
#include "virtio-net.h"
#define VIRTIO_NET_VM_VERSION 3
typedef struct VirtIONet
{
VirtIODevice vdev;
@ -292,13 +294,14 @@ static void virtio_net_save(QEMUFile *f, void *opaque)
qemu_put_buffer(f, n->mac, 6);
qemu_put_be32(f, n->tx_timer_active);
qemu_put_be32(f, n->mergeable_rx_bufs);
qemu_put_be16(f, n->status);
}
static int virtio_net_load(QEMUFile *f, void *opaque, int version_id)
{
VirtIONet *n = opaque;
if (version_id != 2)
if (version_id < 2 || version_id > VIRTIO_NET_VM_VERSION)
return -EINVAL;
virtio_load(&n->vdev, f);
@ -307,6 +310,9 @@ static int virtio_net_load(QEMUFile *f, void *opaque, int version_id)
n->tx_timer_active = qemu_get_be32(f);
n->mergeable_rx_bufs = qemu_get_be32(f);
if (version_id >= 3)
n->status = qemu_get_be16(f);
if (n->tx_timer_active) {
qemu_mod_timer(n->tx_timer,
qemu_get_clock(vm_clock) + TX_TIMER_INTERVAL);
@ -348,6 +354,6 @@ void virtio_net_init(PCIBus *bus, NICInfo *nd, int devfn)
n->tx_timer_active = 0;
n->mergeable_rx_bufs = 0;
register_savevm("virtio-net", virtio_net_id++, 2,
register_savevm("virtio-net", virtio_net_id++, VIRTIO_NET_VM_VERSION,
virtio_net_save, virtio_net_load, n);
}