[Xen-devel] accessing page frame in xen

[pallavi jk <pallutai@xxxxxxxxx>]

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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