Wei, Gang
2008-Jul-14 08:57 UTC
[Xen-devel] [PATCH]PIT broadcast to fix local APIC timer stop issue for Deep C state
Local APIC timer may stop at deep C state (C3/C4...) entry/exit. Initial HPET broadcast working in legacy replacing mode, broke RTC intr, so was bypassed. This patch add the logic that use platform timer (PIT) to reenable local APIC timer at C state entry/exit. Currently, only keep PIT enabled with 100Hz freq. The next step is trying to dynamically enable/disable PIT while needed, and give it lower freq. signed-off-by: Yu Ke <ke.yu@intel.com> signed-off-by: Tian Kevin <kevin.tian@intel.com> signed-off-by: Wei Gang <gang.wei@intel.com> Jimmy _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel
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