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RE: [Xen-devel] map_domain_page


  • To: "Wei, Jinpeng" <jinpeng.wei@xxxxxxxxx>, <xen-devel@xxxxxxxxxxxxxxxxxxx>
  • From: "Li, Xin B" <xin.b.li@xxxxxxxxx>
  • Date: Sat, 9 Jun 2007 09:39:46 +0800
  • Delivery-date: Fri, 08 Jun 2007 18:38:23 -0700
  • List-id: Xen developer discussion <xen-devel.lists.xensource.com>
  • Thread-index: Acep/oW2nQEfrHFzRAGIYKmFO0jwwgAN9xGQ
  • Thread-topic: [Xen-devel] map_domain_page

it is to map a machine page into Xen address space. Xen only has 64M virtual address space on x86_32 , or 168M on PAE Xen, so it uses a cache mechanism to maintain the mapping between xen va and machine page.
-Xin

From: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx [mailto:xen-devel-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of Wei, Jinpeng
Sent: Saturday, June 09, 2007 2:55 AM
To: xen-devel@xxxxxxxxxxxxxxxxxxx
Subject: [Xen-devel] map_domain_page

Hi,

 

Can anybody shed light on the Xen function map_domain_page (in xen/arch/x86/x86_32/domain_page.c)? What is it doing?

 

Jinpeng Wei

 

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