On 02/13/2007 02:17 PM, Jeremy Fitzhardinge wrote: > Allocate a fixmap slot for use by a paravirt_ops implementation. Xen > uses this to map the hypervisor's shared info page, which doesn't have > a pseudo-physical page number, and therefore can't be mapped > ordinarily. > Why doesn't Xen allocate the shared_info page from the pseudo-physical space? Doesn't it already have to steal pages from the pseudo-physical space for e.g. initial page tables, console, etc? Why not do the same for shared_info, and then you don't need a reserve the fixmap slot. Dan
