[Xen-devel] accessing page frame in xen

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Subject:	[Xen-devel] accessing page frame in xen
From:	pallavi jk <pallutai@xxxxxxxxx>
Date:	Fri, 16 Jan 2009 16:47:25 +0530
Delivery-date:	Fri, 16 Jan 2009 03:17:49 -0800
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I am trying to access a page belonging to dom0 userspace, inside xen and read its contents. I have written the following code:

page_pfn = l1e_get_pfn(pte_val);

hypervisor_va = map_domain_page(page_pfn);

for(i=0;i<4096;i++)
{
                printk("\n%x ",*(unsigned char*)(hypervisor_va+i));
}
unmap_domain_page(hypervisor_va);

But my system is crashing when I try to do this. Am I missing something???...Where am I going wrong?

Thanx,
Pallavi

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[Xen-devel] accessing page frame in xen