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xen: machine operations 

Make the appropriate hypercalls to halt and reboot the virtual machine.

Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com>
Acked-by: Chris Wright <chrisw@sous-sol.org>
This commit is contained in:
Jeremy Fitzhardinge 2007-07-17 18:37:07 -07:00 committed by Jeremy Fitzhardinge
parent 0d16021196
commit fefa629abe
2 changed files with 44 additions and 3 deletions
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43
arch/i386/xen/enlighten.c
View File

@ -30,6 +30,7 @@
#include <xen/interface/xen.h>
#include <xen/interface/physdev.h>
#include <xen/interface/vcpu.h>
#include <xen/interface/sched.h>
#include <xen/features.h>
#include <xen/page.h>
@ -43,6 +44,7 @@
#include <asm/desc.h>
#include <asm/pgtable.h>
#include <asm/tlbflush.h>
#include <asm/reboot.h>
#include "xen-ops.h"
#include "mmu.h"
@ -900,6 +902,45 @@ static const struct smp_ops xen_smp_ops __initdata = {
};
#endif /* CONFIG_SMP */
static void xen_reboot(int reason)
{
#ifdef CONFIG_SMP
smp_send_stop();
#endif
if (HYPERVISOR_sched_op(SCHEDOP_shutdown, reason))
BUG();
}
static void xen_restart(char *msg)
{
xen_reboot(SHUTDOWN_reboot);
}
static void xen_emergency_restart(void)
{
xen_reboot(SHUTDOWN_reboot);
}
static void xen_machine_halt(void)
{
xen_reboot(SHUTDOWN_poweroff);
}
static void xen_crash_shutdown(struct pt_regs *regs)
{
xen_reboot(SHUTDOWN_crash);
}
static const struct machine_ops __initdata xen_machine_ops = {
.restart = xen_restart,
.halt = xen_machine_halt,
.power_off = xen_machine_halt,
.shutdown = xen_machine_halt,
.crash_shutdown = xen_crash_shutdown,
.emergency_restart = xen_emergency_restart,
};
/* First C function to be called on Xen boot */
asmlinkage void __init xen_start_kernel(void)
{
@ -912,6 +953,8 @@ asmlinkage void __init xen_start_kernel(void)
/* Install Xen paravirt ops */
paravirt_ops = xen_paravirt_ops;
machine_ops = xen_machine_ops;
#ifdef CONFIG_SMP
smp_ops = xen_smp_ops;
#endif

4
arch/i386/xen/smp.c
View File

@ -311,9 +311,7 @@ static void stop_self(void *v)
void xen_smp_send_stop(void)
{
cpumask_t mask = cpu_online_map;
cpu_clear(smp_processor_id(), mask);
xen_smp_call_function_mask(mask, stop_self, NULL, 0);
smp_call_function(stop_self, NULL, 0, 0);
}
void xen_smp_send_reschedule(int cpu)