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

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

Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
This commit is contained in:
Stefano Stabellini 2013-04-25 10:23:07 +00:00
parent d37a6e1687
commit 6abb749e83
1 changed files with 24 additions and 0 deletions
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24
arch/arm/xen/enlighten.c
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@ -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);