diff --git a/sys/dev/xen/blkfront/blkfront.c b/sys/dev/xen/blkfront/blkfront.c index 9eca2201f89..d76fc01a4bd 100644 --- a/sys/dev/xen/blkfront/blkfront.c +++ b/sys/dev/xen/blkfront/blkfront.c @@ -1537,6 +1537,11 @@ xbd_resume(device_t dev) { struct xbd_softc *sc = device_get_softc(dev); + if (xen_suspend_cancelled) { + sc->xbd_state = XBD_STATE_CONNECTED; + return (0); + } + DPRINTK("xbd_resume: %s\n", xenbus_get_node(dev)); xbd_free(sc); diff --git a/sys/dev/xen/control/control.c b/sys/dev/xen/control/control.c index ae13c6c1007..d4249886332 100644 --- a/sys/dev/xen/control/control.c +++ b/sys/dev/xen/control/control.c @@ -148,6 +148,7 @@ __FBSDID("$FreeBSD$"); #include +bool xen_suspend_cancelled; /*--------------------------- Forward Declarations --------------------------*/ /** Function signature for shutdown event handlers. */ typedef void (xctrl_shutdown_handler_t)(void); @@ -196,7 +197,6 @@ xctrl_suspend() #ifdef SMP cpuset_t cpu_suspend_map; #endif - int suspend_cancelled; EVENTHANDLER_INVOKE(power_suspend_early); stop_all_proc(); @@ -267,16 +267,20 @@ xctrl_suspend() intr_suspend(); xen_hvm_suspend(); - suspend_cancelled = HYPERVISOR_suspend(0); + xen_suspend_cancelled = !!HYPERVISOR_suspend(0); - xen_hvm_resume(suspend_cancelled != 0); - intr_resume(suspend_cancelled != 0); + if (!xen_suspend_cancelled) { + xen_hvm_resume(false); + } + intr_resume(xen_suspend_cancelled != 0); enable_intr(); /* * Reset grant table info. */ - gnttab_resume(NULL); + if (!xen_suspend_cancelled) { + gnttab_resume(NULL); + } #ifdef SMP if (!CPU_EMPTY(&cpu_suspend_map)) { diff --git a/sys/dev/xen/netfront/netfront.c b/sys/dev/xen/netfront/netfront.c index 459712ab3fd..dea722a35a4 100644 --- a/sys/dev/xen/netfront/netfront.c +++ b/sys/dev/xen/netfront/netfront.c @@ -439,6 +439,20 @@ static int netfront_resume(device_t dev) { struct netfront_info *info = device_get_softc(dev); + u_int i; + + if (xen_suspend_cancelled) { + for (i = 0; i < info->num_queues; i++) { + XN_RX_LOCK(&info->rxq[i]); + XN_TX_LOCK(&info->txq[i]); + } + netfront_carrier_on(info); + for (i = 0; i < info->num_queues; i++) { + XN_RX_UNLOCK(&info->rxq[i]); + XN_TX_UNLOCK(&info->txq[i]); + } + return (0); + } netif_disconnect_backend(info); return (0); diff --git a/sys/xen/xen-os.h b/sys/xen/xen-os.h index 96e084fe601..044433ae3d3 100644 --- a/sys/xen/xen-os.h +++ b/sys/xen/xen-os.h @@ -56,6 +56,8 @@ extern char *console_page; extern int xen_disable_pv_disks; extern int xen_disable_pv_nics; +extern bool xen_suspend_cancelled; + enum xen_domain_type { XEN_NATIVE, /* running on bare hardware */ XEN_PV_DOMAIN, /* running in a PV domain */ diff --git a/sys/xen/xenbus/xenbusb.c b/sys/xen/xenbus/xenbusb.c index 3a0e54353cb..8b755e2a62c 100644 --- a/sys/xen/xenbus/xenbusb.c +++ b/sys/xen/xenbus/xenbusb.c @@ -791,6 +791,11 @@ xenbusb_resume(device_t dev) if (device_get_state(kids[i]) == DS_NOTPRESENT) continue; + if (xen_suspend_cancelled) { + DEVICE_RESUME(kids[i]); + continue; + } + ivars = device_get_ivars(kids[i]); xs_unregister_watch(&ivars->xd_otherend_watch);