Re: [Xen-devel] 32/64-bit hypercall interface

[Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>]

On 29 Sep 2005, at 21:12, Hollis Blanchard wrote:

> > start_info_t: tools, kernel
> > xen_parameters_info_t: tools, hypervisor
> > gnttab_setup_table_t: kernel, hypervisor
> > gnttab_transfer_t: kernel, hypervisor
> > struct xen_memory_reservation: tools, kernel, hypervisor
> > struct t_rec: tools, hypervisor
> > struct t_buf: tools, hypervisor
> >
> > (This was just a quick grep for "long" in xen/include/public.)
> Of course, pointers have the same problem. Thankfully, it seems 
> pointers are
> mostly found in the same list of offenders. (It's also a little harder 
> to
> grep for "*", so I could be missing some problems.)
How about writing a script that converts the Xen public headers into a 
set that, when compiled on 32-bit ppc, match the 64-bit ppc layout? 
That might be saner than trying to manually finesse our headers around 
the ppc abi so that building in 32-bit or 64-bit environment both 
happen to give same binary layout.
 -- Keir


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