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[Xen-changelog] [xen-3.1-testing] hvm: hpet: Tidy up hpet_to_ns_limit ca

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Subject:	[Xen-changelog] [xen-3.1-testing] hvm: hpet: Tidy up hpet_to_ns_limit calculation.
From:	"Xen patchbot-3.1-testing" <patchbot-3.1-testing@xxxxxxxxxxxxxxxxxxx>
Date:	Mon, 14 Jan 2008 09:20:33 -0800
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# HG changeset patch
# User Keir Fraser <keir.fraser@xxxxxxxxxx>
# Date 1200049673 0
# Node ID 0a8ce61dead86e598fe31ae4cf256f39ee7ee49d
# Parent  e3b73c4f44de29f4b9a93133f4f22b74811efa19
hvm: hpet: Tidy up hpet_to_ns_limit calculation.
Suggested by Haitao Shan @ Intel.
Signed-off-by: Keir Fraser <keir.fraser@xxxxxxxxxx>
xen-unstable changeset:   16707:51aa2f884f6446b7e376a749ead8038359b70ec1
xen-unstable date:        Fri Jan 11 11:01:36 2008 +0000
---
 xen/arch/x86/hvm/hpet.c |    2 +-
 1 files changed, 1 insertion(+), 1 deletion(-)

diff -r e3b73c4f44de -r 0a8ce61dead8 xen/arch/x86/hvm/hpet.c
--- a/xen/arch/x86/hvm/hpet.c   Fri Jan 11 11:07:11 2008 +0000
+++ b/xen/arch/x86/hvm/hpet.c   Fri Jan 11 11:07:53 2008 +0000
@@ -479,7 +479,7 @@ 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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