[Xen-devel] /dev/mem and /dev/kmem

["Tian, Kevin" <kevin.tian@xxxxxxxxx>]

Based on different interfaces used by /dev/mem and /dev/kmem 
(direct_remap_pfn_range for former, and remap_pfn_range for the 
latter), could I think that /dev/mem is the interface for dom0 to map 
machine memory directly, while /dev/kmem is still geared to dom0's 
own memory? If yes, then I may understand how Xserver can map 
VGABIOS and why DOMID_IO is used for /dev/mem... :-)

Thanks,
Kevin

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