From 8dd38383a51d0fb6b025dc330aaa3470281da3b2 Mon Sep 17 00:00:00 2001 From: Ian Campbell Date: Thu, 17 Feb 2011 10:31:20 +0000 Subject: [PATCH] xen: suspend and resume system devices when running PVHVM Otherwise we fail to properly suspend/resume all of the emulated devices. Something between 2.6.38-rc2 and rc3 appears to have exposed this issue, but it's always been wrong not to do this. Signed-off-by: Ian Campbell Acked-by: Stefano Stabellini Acked-by: Jeremy Fitzhardinge --- drivers/xen/manage.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/drivers/xen/manage.c b/drivers/xen/manage.c index db8c4c4ac88..24177272bcb 100644 --- a/drivers/xen/manage.c +++ b/drivers/xen/manage.c @@ -37,11 +37,19 @@ static enum shutdown_state shutting_down = SHUTDOWN_INVALID; #ifdef CONFIG_PM_SLEEP static int xen_hvm_suspend(void *data) { + int err; struct sched_shutdown r = { .reason = SHUTDOWN_suspend }; int *cancelled = data; BUG_ON(!irqs_disabled()); + err = sysdev_suspend(PMSG_SUSPEND); + if (err) { + printk(KERN_ERR "xen_hvm_suspend: sysdev_suspend failed: %d\n", + err); + return err; + } + *cancelled = HYPERVISOR_sched_op(SCHEDOP_shutdown, &r); xen_hvm_post_suspend(*cancelled); @@ -53,6 +61,8 @@ static int xen_hvm_suspend(void *data) xen_timer_resume(); } + sysdev_resume(); + return 0; } -- 2.11.4.GIT