[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] Why we relocate xen location in __start_xen method?
On Fri, 7 Dec 2012, asad raza wrote: > in ARM Archietecture. > __start_xen () > > -----> setup_pagetables() > { > /* Calculate virt-to-phys offset for the new location */ > phys_offset = xen_paddr - (unsigned long) _start; > > /* Copy */ > memcpy((void *) dest_va, _start, _end - _start); > } We relocate Xen to the top of RAM (and align to a XEN_PADDR_ALIGN boundary) to free some precious low RAM and be independent from the behaviour of the bootloader. See xen/arch/arm/setup.c:get_xen_paddr. _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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