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[Xen-devel] [PATCH 1/4] CPUIDLE: Avoid remnant HPET intr while force hpe
| To: | "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx> |
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| Subject: | [Xen-devel] [PATCH 1/4] CPUIDLE: Avoid remnant HPET intr while force hpetbroadcast |
| From: | "Wei, Gang" <gang.wei@xxxxxxxxx> |
| Date: | Tue, 9 Sep 2008 16:26:18 +0800 |
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| Delivery-date: | Tue, 09 Sep 2008 01:26:56 -0700 |
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| Thread-topic: | [PATCH 1/4] CPUIDLE: Avoid remnant HPET intr while force hpetbroadcast |
CPUIDLE: Avoid remnant HPET intr while force hpetbroadcast Exit from C3 is mainly caused by HPET intr if force enable hpetbroadcast. But it is still probably caused by other unexpected events. In this case the HPET timer may still be alive while there is no CPU in C3. Avoid those remnant HPET intr can save cpu handling time and increase idle time. Signed-off-by: Wei Gang <gang.wei@xxxxxxxxx>
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