ia64/xen: preliminary support for save/restore.
preliminary support for save/restore. Although Save/restore isn't fully working yet, this patch is necessary to compile. Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: Tony Luck <tony.luck@intel.com>
This commit is contained in:
parent
a0df655ccd
commit
91834e685d
|
@ -3,7 +3,7 @@
|
|||
#
|
||||
|
||||
obj-y := hypercall.o xenivt.o xensetup.o xen_pv_ops.o irq_xen.o \
|
||||
hypervisor.o xencomm.o xcom_hcall.o grant-table.o time.o
|
||||
hypervisor.o xencomm.o xcom_hcall.o grant-table.o time.o suspend.o
|
||||
|
||||
obj-$(CONFIG_IA64_GENERIC) += machvec.o
|
||||
|
||||
|
|
64
arch/ia64/xen/suspend.c
Normal file
64
arch/ia64/xen/suspend.c
Normal file
|
@ -0,0 +1,64 @@
|
|||
/******************************************************************************
|
||||
* arch/ia64/xen/suspend.c
|
||||
*
|
||||
* Copyright (c) 2008 Isaku Yamahata <yamahata at valinux co jp>
|
||||
* VA Linux Systems Japan K.K.
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation; either version 2 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
||||
*
|
||||
* suspend/resume
|
||||
*/
|
||||
|
||||
#include <xen/xen-ops.h>
|
||||
#include <asm/xen/hypervisor.h>
|
||||
#include "time.h"
|
||||
|
||||
void
|
||||
xen_mm_pin_all(void)
|
||||
{
|
||||
/* nothing */
|
||||
}
|
||||
|
||||
void
|
||||
xen_mm_unpin_all(void)
|
||||
{
|
||||
/* nothing */
|
||||
}
|
||||
|
||||
void xen_pre_device_suspend(void)
|
||||
{
|
||||
/* nothing */
|
||||
}
|
||||
|
||||
void
|
||||
xen_pre_suspend()
|
||||
{
|
||||
/* nothing */
|
||||
}
|
||||
|
||||
void
|
||||
xen_post_suspend(int suspend_cancelled)
|
||||
{
|
||||
if (suspend_cancelled)
|
||||
return;
|
||||
|
||||
xen_ia64_enable_opt_feature();
|
||||
/* add more if necessary */
|
||||
}
|
||||
|
||||
void xen_arch_resume(void)
|
||||
{
|
||||
xen_timer_resume_on_aps();
|
||||
}
|
|
@ -26,6 +26,8 @@
|
|||
#include <linux/irq.h>
|
||||
#include <linux/clocksource.h>
|
||||
|
||||
#include <asm/timex.h>
|
||||
|
||||
#include <asm/xen/hypervisor.h>
|
||||
|
||||
#include <xen/interface/vcpu.h>
|
||||
|
@ -178,3 +180,34 @@ struct pv_time_ops xen_time_ops __initdata = {
|
|||
.do_steal_accounting = xen_do_steal_accounting,
|
||||
.clocksource_resume = xen_itc_jitter_data_reset,
|
||||
};
|
||||
|
||||
/* Called after suspend, to resume time. */
|
||||
static void xen_local_tick_resume(void)
|
||||
{
|
||||
/* Just trigger a tick. */
|
||||
ia64_cpu_local_tick();
|
||||
touch_softlockup_watchdog();
|
||||
}
|
||||
|
||||
void
|
||||
xen_timer_resume(void)
|
||||
{
|
||||
unsigned int cpu;
|
||||
|
||||
xen_local_tick_resume();
|
||||
|
||||
for_each_online_cpu(cpu)
|
||||
xen_init_missing_ticks_accounting(cpu);
|
||||
}
|
||||
|
||||
static void ia64_cpu_local_tick_fn(void *unused)
|
||||
{
|
||||
xen_local_tick_resume();
|
||||
xen_init_missing_ticks_accounting(smp_processor_id());
|
||||
}
|
||||
|
||||
void
|
||||
xen_timer_resume_on_aps(void)
|
||||
{
|
||||
smp_call_function(&ia64_cpu_local_tick_fn, NULL, 1);
|
||||
}
|
||||
|
|
|
@ -21,3 +21,4 @@
|
|||
*/
|
||||
|
||||
extern struct pv_time_ops xen_time_ops __initdata;
|
||||
void xen_timer_resume_on_aps(void);
|
||||
|
|
Loading…
Reference in New Issue
Block a user