[Xen-devel] [PATCH] hvm: remove pt_reset()

[Kouya Shimura <kouya@xxxxxxxxxxxxxx>]

Virtual platform timers are not sync'ed with guest's TSC any more
since c/s 17716. Thus pt_reset is now useless.

Signed-off-by: Kouya Shimura <kouya@xxxxxxxxxxxxxx>

diff -r b4fcb5f632dc xen/arch/x86/hvm/hvm.c
--- a/xen/arch/x86/hvm/hvm.c    Mon Aug 31 18:17:26 2009 +0100
+++ b/xen/arch/x86/hvm/hvm.c    Tue Sep 01 16:13:14 2009 +0900
@@ -1890,7 +1890,6 @@ int hvm_msr_write_intercept(struct cpu_u
     {
      case MSR_IA32_TSC:
         hvm_set_guest_tsc(v, msr_content);
-        pt_reset(v);
         break;
 
     case MSR_IA32_APICBASE:
diff -r b4fcb5f632dc xen/arch/x86/hvm/vpt.c
--- a/xen/arch/x86/hvm/vpt.c    Mon Aug 31 18:17:26 2009 +0100
+++ b/xen/arch/x86/hvm/vpt.c    Tue Sep 01 16:13:14 2009 +0900
@@ -327,24 +327,6 @@ void pt_intr_post(struct vcpu *v, struct
         cb(v, cb_priv);
 }
 
-void pt_reset(struct vcpu *v)
-{
-    struct list_head *head = &v->arch.hvm_vcpu.tm_list;
-    struct periodic_time *pt;
-
-    spin_lock(&v->arch.hvm_vcpu.tm_lock);
-
-    list_for_each_entry ( pt, head, list )
-    {
-        pt->pending_intr_nr = 0;
-        pt->last_plt_gtime = hvm_get_guest_time(pt->vcpu);
-        pt->scheduled = NOW() + pt->period;
-        set_timer(&pt->timer, pt->scheduled);
-    }
-
-    spin_unlock(&v->arch.hvm_vcpu.tm_lock);
-}
-
 void pt_migrate(struct vcpu *v)
 {
     struct list_head *head = &v->arch.hvm_vcpu.tm_list;
diff -r b4fcb5f632dc xen/include/asm-x86/hvm/vpt.h
--- a/xen/include/asm-x86/hvm/vpt.h     Mon Aug 31 18:17:26 2009 +0100
+++ b/xen/include/asm-x86/hvm/vpt.h     Tue Sep 01 16:13:14 2009 +0900
@@ -138,7 +138,6 @@ void pt_restore_timer(struct vcpu *v);
 void pt_restore_timer(struct vcpu *v);
 void pt_update_irq(struct vcpu *v);
 void pt_intr_post(struct vcpu *v, struct hvm_intack intack);
-void pt_reset(struct vcpu *v);
 void pt_migrate(struct vcpu *v);
 
 void pt_adjust_global_vcpu_target(struct vcpu *v);

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