net/e1000: update network information when macaddr is changed in guest

If we change macaddr in guest by 'ifconfig eth0 hw ether 12:12:12:34:35:36', the mac register of e1000 is already updated, but we don't update network information in qemu. Therefor, the information in monitor is wrong. This patch updates nic info when the second part of macaddr is written. Signed-off-by: Amos Kong <[email protected]> Signed-off-by: Stefan Hajnoczi <[email protected]>
coreycb · Oct 18, 2013 · 7c36507 · 7c36507
1 parent 655d3b6
commit 7c36507
Showing 1 changed file with 8 additions and 0 deletions.
diff --git a/hw/net/e1000.c b/hw/net/e1000.c
@@ -1106,7 +1106,15 @@ mac_read_clr8(E1000State *s, int index)
 static void
 mac_writereg(E1000State *s, int index, uint32_t val)
 {
+    uint32_t macaddr[2];
+
     s->mac_reg[index] = val;
+
+    if (index == RA + 1) {
+        macaddr[0] = cpu_to_le32(s->mac_reg[RA]);
+        macaddr[1] = cpu_to_le32(s->mac_reg[RA + 1]);
+        qemu_format_nic_info_str(qemu_get_queue(s->nic), (uint8_t *)macaddr);
+    }
 }
 
 static void