[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

[Xen-devel] paging mechanism clarification

  • To: <xen-devel@xxxxxxxxxxxxxxxxxxx>
  • From: "Pradeep Singh, TLS-Chennai" <pradeep_s@xxxxxx>
  • Date: Mon, 12 Mar 2007 11:25:51 +0530
  • Delivery-date: Sun, 11 Mar 2007 22:55:02 -0700
  • List-id: Xen developer discussion <xen-devel.lists.xensource.com>
  • Thread-index: AcdkaxdIRFOb74LzRkumlKpf+mzsXw==
  • Thread-topic: paging mechanism clarification

Hi All,

The Xen uses 2 level Paging Mechanism to resolve the Virtual Addresses into frame numbers from domU.The first level is taken care by the MMU for the domU i.e translation from virtual address to the physical address just like normal paging mechanism. The second level of translation is done by the Xen hypervisor.It translates the pseduo physical address recieved from the domU and treats it as a normal virtual address and finds the page frame using regualr paging mechanism.

And this whole 2 level paging consitutes Xen's shadow page tables. Right?

Is my understanding of Xen's paging mechanism correct?or am i missing something?

Thank you



The contents of this e-mail and any attachment(s) are confidential and intended 
for the named recipient(s) only.
It shall not attach any liability on the originator or HCL or its affiliates. 
Any views or opinions presented in 
this email are solely those of the author and may not necessarily reflect the 
opinions of HCL or its affiliates.
Any form of reproduction, dissemination, copying, disclosure, modification, 
distribution and / or publication of 
this message without the prior written consent of the author of this e-mail is 
strictly prohibited. If you have
received this email in error please delete it and notify the sender 
immediately. Before opening any mail and 
attachments please check them for viruses and defect.

Xen-devel mailing list



Lists.xenproject.org is hosted with RackSpace, monitoring our
servers 24x7x365 and backed by RackSpace's Fanatical Support®.