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xen: suspend: pull pre/post suspend hooks out into suspend_info 

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
This commit is contained in:
Ian Campbell 2011-02-17 11:04:20 +00:00 committed by Stefano Stabellini
parent 07af38102f
commit 55fb4acef7
1 changed files with 18 additions and 5 deletions
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23
drivers/xen/manage.c
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@ -37,6 +37,8 @@ static enum shutdown_state shutting_down = SHUTDOWN_INVALID;
struct suspend_info {
int cancelled;
unsigned long arg; /* extra hypercall argument */
void (*pre)(void);
void (*post)(int cancelled);
};
static void xen_hvm_post_suspend(int cancelled)
@ -74,6 +76,9 @@ static int xen_hvm_suspend(void *data)
return err;
}
if (si->pre)
si->pre();
/*
* This hypercall returns 1 if suspend was cancelled
* or the domain was merely checkpointed, and 0 if it
@ -81,7 +86,8 @@ static int xen_hvm_suspend(void *data)
*/
si->cancelled = HYPERVISOR_suspend(si->arg);
xen_hvm_post_suspend(si->cancelled);
if (si->post)
si->post(si->cancelled);
if (!si->cancelled) {
xen_irq_resume();
@ -108,7 +114,8 @@ static int xen_suspend(void *data)
return err;
}
xen_pre_suspend();
if (si->pre)
si->pre();
/*
* This hypercall returns 1 if suspend was cancelled
@ -117,7 +124,8 @@ static int xen_suspend(void *data)
*/
si->cancelled = HYPERVISOR_suspend(si->arg);
xen_post_suspend(si->cancelled);
if (si->post)
si->post(si->cancelled);
if (!si->cancelled) {
xen_irq_resume();
@ -165,10 +173,15 @@ static void do_suspend(void)
si.cancelled = 1;
if (xen_hvm_domain())
if (xen_hvm_domain()) {
si.arg = 0UL;
else
si.pre = NULL;
si.post = &xen_hvm_post_suspend;
} else {
si.arg = virt_to_mfn(xen_start_info);
si.pre = &xen_pre_suspend;
si.post = &xen_post_suspend;
}
if (xen_hvm_domain())
err = stop_machine(xen_hvm_suspend, &si, cpumask_of(0));