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[Xen-devel] How can I use grant table in domainU?

  • To: "xen-devel" <xen-devel@xxxxxxxxxxxxxxxxxxx>
  • From: "ruozeng.w" <ruozeng.w@xxxxxxxxx>
  • Date: Mon, 4 Apr 2011 18:15:22 +0800
  • Delivery-date: Mon, 04 Apr 2011 03:15:58 -0700
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  • List-id: Xen developer discussion <xen-devel.lists.xensource.com>
Can applications runs in domainU use grant table?
 
I found a way in the document(/docs/misc/grant-tables.txt), using function gnttab_grant_foreign_access . But, this fucntion is defined in domainU kernel, for example, in my installation, it's in /linux-2.6.18-xen.hg/include/xen/gnttab.h.
 
Then how can I call this function in my own application?
If I wants to write a simple program(program1) runs in domainA, to map a frame to domainB, in which another simple program(program2) is running, then program2 can read the information program1 sent to domainB, what should I do?
 
thanks.
 
2011-04-04
Wishes
Ruozeng W 
 
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