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[Xen-changelog] [xen-unstable] hvm: Only complain about short-period periodic tickers.



# HG changeset patch
# User kfraser@xxxxxxxxxxxxxxxxxxxxx
# Date 1184752832 -3600
# Node ID ad1c6cf0baafe149c9fe03be3255b95ffef68a34
# Parent  2cbaa58b131172dd7b35c384cbe2027e3893e26f
hvm: Only complain about short-period periodic tickers.
Signed-off-by: Keir Fraser <keir@xxxxxxxxxxxxx>
---
 xen/arch/x86/hvm/vpt.c |    8 +++++---
 1 files changed, 5 insertions(+), 3 deletions(-)

diff -r 2cbaa58b1311 -r ad1c6cf0baaf xen/arch/x86/hvm/vpt.c
--- a/xen/arch/x86/hvm/vpt.c    Wed Jul 18 10:10:04 2007 +0100
+++ b/xen/arch/x86/hvm/vpt.c    Wed Jul 18 11:00:32 2007 +0100
@@ -261,13 +261,15 @@ void create_periodic_time(
     pt->enabled = 1;
     pt->pending_intr_nr = 0;
 
-    if ( period < 900000 ) /* < 0.9 ms */
+    /* Periodic timer must be at least 0.9ms. */
+    if ( (period < 900000) && !one_shot )
     {
         gdprintk(XENLOG_WARNING,
                  "HVM_PlatformTime: program too small period %"PRIu64"\n",
                  period);
-        period = 900000; /* force to 0.9ms */
-    }
+        period = 900000;
+    }
+
     pt->period = period;
     pt->vcpu = v;
     pt->last_plt_gtime = hvm_get_guest_time(pt->vcpu);

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