[Xen-changelog] [xen-unstable] hvm: hpet: Tidy up hpet_to_ns_limit calculation.

[Xen patchbot-unstable <patchbot-unstable@xxxxxxxxxxxxxxxxxxx>]

# HG changeset patch
# User Keir Fraser <keir.fraser@xxxxxxxxxx>
# Date 1200049296 0
# Node ID 51aa2f884f6446b7e376a749ead8038359b70ec1
# Parent  f2b4779623d26e30ebd693a1cfccfe1162243191
hvm: hpet: Tidy up hpet_to_ns_limit calculation.
Suggested by Haitao Shan @ Intel.
Signed-off-by: Keir Fraser <keir.fraser@xxxxxxxxxx>
---
 xen/arch/x86/hvm/hpet.c |    2 +-
 1 files changed, 1 insertion(+), 1 deletion(-)

diff -r f2b4779623d2 -r 51aa2f884f64 xen/arch/x86/hvm/hpet.c
--- a/xen/arch/x86/hvm/hpet.c   Fri Jan 11 10:59:48 2008 +0000
+++ b/xen/arch/x86/hvm/hpet.c   Fri Jan 11 11:01:36 2008 +0000
@@ -551,7 +551,7 @@ void hpet_init(struct vcpu *v)
     h->tsc_freq = ticks_per_sec(v);
 
     h->hpet_to_ns_scale = ((S_TO_NS * TSC_PER_HPET_TICK) << 10) / h->tsc_freq;
-    h->hpet_to_ns_limit = (~0ULL >> 1) / h->hpet_to_ns_scale;
+    h->hpet_to_ns_limit = ~0ULL / h->hpet_to_ns_scale;
 
     /* 64-bit main counter; 3 timers supported; LegacyReplacementRoute. */
     h->hpet.capability = 0x8086A201ULL;

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