Commit 6abb749e authored by Stefano Stabellini's avatar Stefano Stabellini
Browse files

xen/arm: use sched_op hypercalls for machine reboot and power off 



Changes in v5:
- set pm_power_off and arm_pm_restart from the Xen specific
intialization code.

Signed-off-by: default avatarStefano Stabellini <stefano.stabellini@eu.citrix.com>
parent d37a6e16

arch/arm/xen/enlighten.c

+24 −0
Original line number Diff line number Diff line
@@ -10,9 +10,12 @@ 
#include <xen/platform_pci.h>

#include <xen/xenbus.h>

#include <xen/page.h>

#include <xen/xen.h>

#include <xen/interface/sched.h>

#include <xen/xen-ops.h>

#include <asm/xen/hypervisor.h>

#include <asm/xen/hypercall.h>

#include <asm/system_misc.h>

#include <linux/interrupt.h>

#include <linux/irqreturn.h>

#include <linux/module.h>
@@ -173,6 +176,24 @@ static int __init xen_secondary_init(unsigned int cpu) 
	return 0;

}



static void xen_restart(char str, const char *cmd)

{

	struct sched_shutdown r = { .reason = SHUTDOWN_reboot };

	int rc;

	rc = HYPERVISOR_sched_op(SCHEDOP_shutdown, &r);

	if (rc)

		BUG();

}



static void xen_power_off(void)

{

	struct sched_shutdown r = { .reason = SHUTDOWN_poweroff };

	int rc;

	rc = HYPERVISOR_sched_op(SCHEDOP_shutdown, &r);

	if (rc)

		BUG();

}



/*

 * see Documentation/devicetree/bindings/arm/xen.txt for the

 * documentation of the Xen Device Tree format.
@@ -252,6 +273,9 @@ static int __init xen_guest_init(void) 
	if (!xen_initial_domain())

		xenbus_probe(NULL);



	pm_power_off = xen_power_off;

	arm_pm_restart = xen_restart;



	return 0;

}

core_initcall(xen_guest_init);