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[Xen-devel] HVM Domain Grant Reference For Sharing Memory

  • To: "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>
  • From: "Kumar, Venkat" <Venkat.Kumar@xxxxxxx>
  • Date: Thu, 28 Aug 2008 13:50:16 +0800
  • Accept-language: en-US
  • Acceptlanguage: en-US
  • Delivery-date: Wed, 27 Aug 2008 22:50:55 -0700
  • List-id: Xen developer discussion <xen-devel.lists.xensource.com>
  • Thread-index: AckI0fJGlRlrrYD7QuqZr82oL2nsog==
  • Thread-topic: HVM Domain Grant Reference For Sharing Memory

HVM need not execute a Hypercall to offer a page instead it will fill the appropriate grant reference structure inside the grant table from the obtained index in the grant table.

But how will the HVM guest pass the grant reference to a PV guest so that he can map it.

Is it through Xenstore?

If it is through Xenstore, is there a hypercall involved?

If it is not through Xenstore, is there any other way which is currently supported?

 

Thx,

Venkat

 

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