From e4b823644044de1b8070fde82d0aad8053dc3333 Mon Sep 17 00:00:00 2001
From: Amos Kong <akong@redhat.com>
Date: Fri, 28 Sep 2012 10:06:01 +0800
Subject: [PATCH] e1000: update nc.link_down in e1000_post_load()
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>
---
hw/e1000.c | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/hw/e1000.c b/hw/e1000.c
index ec3a7c4ecc..63fee10794 100644
--- a/hw/e1000.c
+++ b/hw/e1000.c
@@ -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 */
--
2.30.2