aboutsummaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
-rw-r--r--xen/arch/x86/platform_hypercall.c8
-rw-r--r--xen/common/schedule.c9
2 files changed, 10 insertions, 7 deletions
diff --git a/xen/arch/x86/platform_hypercall.c b/xen/arch/x86/platform_hypercall.c
index 7175a82658..2162811300 100644
--- a/xen/arch/x86/platform_hypercall.c
+++ b/xen/arch/x86/platform_hypercall.c
@@ -355,10 +355,14 @@ ret_t do_platform_op(XEN_GUEST_HANDLE_PARAM(xen_platform_op_t) u_xenpf_op)
for_each_cpu ( cpu, cpumap )
{
- if ( idle_vcpu[cpu] == NULL )
- cpumask_clear_cpu(cpu, cpumap);
idletime = get_cpu_idle_time(cpu);
+ if ( !idletime )
+ {
+ cpumask_clear_cpu(cpu, cpumap);
+ continue;
+ }
+
if ( copy_to_guest_offset(idletimes, cpu, &idletime, 1) )
{
ret = -EFAULT;
diff --git a/xen/common/schedule.c b/xen/common/schedule.c
index a8398bd9ed..1ddfb22df6 100644
--- a/xen/common/schedule.c
+++ b/xen/common/schedule.c
@@ -176,13 +176,12 @@ void vcpu_runstate_get(struct vcpu *v, struct vcpu_runstate_info *runstate)
uint64_t get_cpu_idle_time(unsigned int cpu)
{
- struct vcpu_runstate_info state;
- struct vcpu *v;
+ struct vcpu_runstate_info state = { 0 };
+ struct vcpu *v = idle_vcpu[cpu];
- if ( (v = idle_vcpu[cpu]) == NULL )
- return 0;
+ if ( cpu_online(cpu) && v )
+ vcpu_runstate_get(v, &state);
- vcpu_runstate_get(v, &state);
return state.time[RUNSTATE_running];
}