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[win-pv-devel] [PATCH 0/5] Remove use of KeNumberProcessors


  • To: win-pv-devel@xxxxxxxxxxxxxxxxxxxx
  • From: Paul Durrant <pdurrant@xxxxxxxxx>
  • Date: Thu, 29 Jan 2015 14:11:04 +0000
  • Delivery-date: Thu, 29 Jan 2015 14:11:26 +0000
  • List-id: Developer list for the Windows PV Drivers subproject <win-pv-devel.lists.xenproject.org>

KeNumberProcessors has been obsolete for many releases of Windows so it's
about time the drivers stopped using it.
The modifications are not quite as simple as replacing occurences of
KeNumberProcessors with KeQueryActiveProcessorCount() though because the
DP WLK - Hot-Add HCK test fakes processor addition and will fool the FIFO
EVTCHN code into doing the wrong thing, so we need to be more careful.
Also, this series takes the opportunity to make use of processor callbacks
to make sure we get CPU information for hot added processors.


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