Author: royger
Date: Mon Jun 16 08:46:31 2014
New Revision: 267531
URL: http://svnweb.freebsd.org/changeset/base/267531
Log:
xen: add shutdown hook for PVH
Add the PV shutdown hook to PVH.
Sponsored by: Citrix Systems R&D
Approved by: gibbs
dev/xen/control/control.c:
- Make xen_pv_shutdown_final available on XENHVM builds.
- Register the Xen PV shutdown hook for PVH guests.
Modified:
head/sys/dev/xen/control/control.c
Modified: head/sys/dev/xen/control/control.c
==============================================================================
--- head/sys/dev/xen/control/control.c Mon Jun 16 08:45:51 2014
(r267530)
+++ head/sys/dev/xen/control/control.c Mon Jun 16 08:46:31 2014
(r267531)
@@ -316,21 +316,6 @@ xctrl_suspend()
EVENTHANDLER_INVOKE(power_resume);
}
-static void
-xen_pv_shutdown_final(void *arg, int howto)
-{
- /*
- * Inform the hypervisor that shutdown is complete.
- * This is not necessary in HVM domains since Xen
- * emulates ACPI in that mode and FreeBSD's ACPI
- * support will request this transition.
- */
- if (howto & (RB_HALT | RB_POWEROFF))
- HYPERVISOR_shutdown(SHUTDOWN_poweroff);
- else
- HYPERVISOR_shutdown(SHUTDOWN_reboot);
-}
-
#else
/* HVM mode suspension. */
@@ -440,6 +425,21 @@ xctrl_crash()
panic("Xen directed crash");
}
+static void
+xen_pv_shutdown_final(void *arg, int howto)
+{
+ /*
+ * Inform the hypervisor that shutdown is complete.
+ * This is not necessary in HVM domains since Xen
+ * emulates ACPI in that mode and FreeBSD's ACPI
+ * support will request this transition.
+ */
+ if (howto & (RB_HALT | RB_POWEROFF))
+ HYPERVISOR_shutdown(SHUTDOWN_poweroff);
+ else
+ HYPERVISOR_shutdown(SHUTDOWN_reboot);
+}
+
/*------------------------------ Event Reception
-----------------------------*/
static void
xctrl_on_watch_event(struct xs_watch *watch, const char **vec, unsigned int
len)
@@ -522,10 +522,9 @@ xctrl_attach(device_t dev)
xctrl->xctrl_watch.callback_data = (uintptr_t)xctrl;
xs_register_watch(&xctrl->xctrl_watch);
-#ifndef XENHVM
- EVENTHANDLER_REGISTER(shutdown_final, xen_pv_shutdown_final, NULL,
- SHUTDOWN_PRI_LAST);
-#endif
+ if (xen_pv_domain())
+ EVENTHANDLER_REGISTER(shutdown_final, xen_pv_shutdown_final,
NULL,
+ SHUTDOWN_PRI_LAST);
return (0);
}
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