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RE: [Xen-devel][VTD] 1:1 mapping for dom0 exhausts xenheap on x86/32 with 4G memory


  • To: "Keir Fraser" <Keir.Fraser@xxxxxxxxxxxx>, <xen-devel@xxxxxxxxxxxxxxxxxxx>
  • From: "Han, Weidong" <weidong.han@xxxxxxxxx>
  • Date: Fri, 28 Sep 2007 16:00:55 +0800
  • Cc: "Kay, Allen M" <allen.m.kay@xxxxxxxxx>
  • Delivery-date: Fri, 28 Sep 2007 01:01:42 -0700
  • List-id: Xen developer discussion <xen-devel.lists.xensource.com>
  • Thread-index: AcgBkBj9hxSsSLqpQVyYGgB006zGCwACo/mRAAFHAlAAAM8z9AAANg3gAABq4QgAABddoA==
  • Thread-topic: [Xen-devel][VTD] 1:1 mapping for dom0 exhausts xenheap on x86/32 with 4G memory

Keir Fraser wrote:
> It's fine. Pass NULL as the domain pointer to alloc_domheap_page()
> and you get anonymous pages from the global domain heap. The 'domain'
> in the name of alloc_domheap_page() and map_domain_page() functions
> is a bit misleading! 
> 
>  -- Keir

I see. I am going to implement alloc_domheap_page() and
map_domain_page() method. Thanks.

Weidong

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