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[Xen-devel] About shadow flag(PG_refcounts)


  • To: <xen-devel@xxxxxxxxxxxxxxxxxxx>
  • From: "Li Yaqiong" <liyaq04@xxxxxxxxxx>
  • Date: Mon, 12 Jan 2009 11:15:14 +0800
  • Delivery-date: Sun, 11 Jan 2009 19:16:25 -0800
  • Importance: Normal
  • List-id: Xen developer discussion <xen-devel.lists.xensource.com>

Hi

         In Xen source code, a flag called PG_refcounts is used. Its explanation is “Refcounts based on shadow tables instead of guest tables”. I can’t understand it. Who can explain this flags in detail?

         Thanks!

-techie

 

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