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e1000: update nc.link_down in e1000_post_load()

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This patch introduced e1000_post_load(), it will be called in the end of
migration. nc.link_down could not be migrated, this patch updates
link_down in e1000_post_load() to keep it coincident with real link
status.

Signed-off-by: Amos Kong <akong@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@gmail.com>
This commit is contained in:
Amos Kong 2012-09-28 10:06:01 +08:00 committed by Stefan Hajnoczi
parent 9e12c5aff2
commit e4b8236440
1 changed files with 12 additions and 0 deletions
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12
hw/e1000.c
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@ -1079,11 +1079,23 @@ static bool is_version_1(void *opaque, int version_id)
return version_id == 1;
}
static int e1000_post_load(void *opaque, int version_id)
{
E1000State *s = opaque;
/* nc.link_down can't be migrated, so infer link_down according
* to link status bit in mac_reg[STATUS] */
s->nic->nc.link_down = (s->mac_reg[STATUS] & E1000_STATUS_LU) == 0;
return 0;
}
static const VMStateDescription vmstate_e1000 = {
.name = "e1000",
.version_id = 2,
.minimum_version_id = 1,
.minimum_version_id_old = 1,
.post_load = e1000_post_load,
.fields = (VMStateField []) {
VMSTATE_PCI_DEVICE(dev, E1000State),
VMSTATE_UNUSED_TEST(is_version_1, 4), /* was instance id */