hi all, I have some confusion about the functionality of xc_dom_pfn_to_ptr. According to my understanding i think it''s used to return an ptr to the segment base by creating a physical_to_machine address mapping for each guest. but the part thats confusing me is that in the privcmd.c the MMAP switch case calls direct_remap_pfn_range which inturn calls apply_to_page_range which updates the dom0 page tables!!! why is this required?? Please correct me if my understanding is wrong. Thanks, Sandesh Please do not print this email unless it is absolutely necessary. The information contained in this electronic message and any attachments to this message are intended for the exclusive use of the addressee(s) and may contain proprietary, confidential or privileged information. If you are not the intended recipient, you should not disseminate, distribute or copy this e-mail. Please notify the sender immediately and destroy all copies of this message and any attachments. WARNING: Computer viruses can be transmitted via email. The recipient should check this email and any attachments for the presence of viruses. The company accepts no liability for any damage caused by any virus transmitted by this email. www.wipro.com _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel