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xen: add static initialization of steal_clock op to xen_time_ops 

pv_time_ops might be overwritten with xen_time_ops after the
steal_clock operation has been initialized already. To prevent calling
a now uninitialized function pointer add the steal_clock static
initialization to xen_time_ops.

Signed-off-by: Juergen Gross <jgross@suse.com>
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
This commit is contained in:
Juergen Gross 2016-07-26 14:15:11 +02:00 committed by David Vrabel
parent ee42d665d3
commit d34c30cc1f
3 changed files with 3 additions and 1 deletions
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1
arch/x86/xen/time.c
View File

@ -364,6 +364,7 @@ void xen_timer_resume(void)
static const struct pv_time_ops xen_time_ops __initconst = {
.sched_clock = xen_clocksource_read,
.steal_clock = xen_steal_clock,
};
static void __init xen_time_init(void)

2
drivers/xen/time.c
View File

@ -80,7 +80,7 @@ bool xen_vcpu_stolen(int vcpu)
return per_cpu(xen_runstate, vcpu).state == RUNSTATE_runnable;
}
static u64 xen_steal_clock(int cpu)
u64 xen_steal_clock(int cpu)
{
struct vcpu_runstate_info state;

1
include/xen/xen-ops.h
View File

@ -29,6 +29,7 @@ bool xen_vcpu_stolen(int vcpu);
void xen_setup_runstate_info(int cpu);
void xen_time_setup_guest(void);
void xen_get_runstate_snapshot(struct vcpu_runstate_info *res);
u64 xen_steal_clock(int cpu);
int xen_setup_shutdown_event(void);