xen/arm: implement vcpu_timer_destroy

Implement a function to destroy the per-vcpu phys and virt timers, call
it from vcpu_destroy.

Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Acked-by: Tim Deegan <tim@xen.org>
Committed-by: Ian Campbell <ian.campbell@citrix.com>

xen/arch/arm/domain.c

@@ -399,6 +399,7 @@ int vcpu_initialise(struct vcpu *v)
 
 void vcpu_destroy(struct vcpu *v)
 {
+    vcpu_timer_destroy(v);
     free_xenheap_pages(v->arch.stack, STACK_ORDER);
 }
 

xen/arch/arm/vtimer.c

@@ -65,6 +65,12 @@ int vcpu_vtimer_init(struct vcpu *v)
     return 0;
 }
 
+void vcpu_timer_destroy(struct vcpu *v)
+{
+    kill_timer(&v->arch.virt_timer.timer);
+    kill_timer(&v->arch.phys_timer.timer);
+}
+
 int virt_timer_save(struct vcpu *v)
 {
     v->arch.virt_timer.ctl = READ_CP32(CNTV_CTL);

xen/arch/arm/vtimer.h

@@ -24,6 +24,7 @@ extern int vcpu_vtimer_init(struct vcpu *v);
 extern int vtimer_emulate(struct cpu_user_regs *regs, union hsr hsr);
 extern int virt_timer_save(struct vcpu *v);
 extern int virt_timer_restore(struct vcpu *v);
+extern void vcpu_timer_destroy(struct vcpu *v);
 
 #endif