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Commit fefa629a authored by Jeremy Fitzhardinge's avatar Jeremy Fitzhardinge Committed by Jeremy Fitzhardinge
Browse files

xen: machine operations 



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

Signed-off-by: default avatarJeremy Fitzhardinge <jeremy@xensource.com>
Acked-by: default avatarChris Wright <chrisw@sous-sol.org>
parent 0d160211

arch/i386/xen/enlighten.c

+43 −0
Original line number Diff line number Diff line
@@ -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

arch/i386/xen/smp.c

+1 −3
Original line number Diff line number Diff line
@@ -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)