set_phy_ctrl(E1000State *s, int index, uint16_t val) { /* * QEMU 1.3 does not support link auto-negotiation emulation, so if we * migrate during auto negotiation, after migration the link will be * down. */ if (!(s->compat_flags & E1000_FLAG_AUTONEG)) { return; } if ((val & MII_CR_AUTO_NEG_EN) && (val & MII_CR_RESTART_AUTO_NEG)) { e1000_link_down(s); DBGOUT(PHY, "Start link auto negotiation\n"); timer_mod(s->autoneg_timer, qemu_clock_get_ms(QEMU_CLOCK_VIRTUAL) + 500); } }