Jan Kiszka wrote: > Hi, > > doesn't this patch [1] have some relevance for us as well? As we use > xnarch_remap_io_page_range also for non-IO memory, I'm hesitating to > suggest that we apply this unconditionally at xnarch level. Ideas welcome. >
Yes, I think it makes a lot of sense on powerpc at least, since doing so will set the PAGE_GUARDED bit as well, and we obviously want to avoid any out-of-order access of I/O memory. (I don't see the reason to force the VM_RESERVED and VM_IO on the vma though, since remap_pfn_range will do it anyway.) I'll merge that bit, thanks. > Jan > > [1] http://permalink.gmane.org/gmane.linux.kernel/653921 > > > > > ------------------------------------------------------------------------ > > _______________________________________________ > Xenomai-core mailing list > Xenomai-core@gna.org > https://mail.gna.org/listinfo/xenomai-core -- Philippe. _______________________________________________ Xenomai-core mailing list Xenomai-core@gna.org https://mail.gna.org/listinfo/xenomai-core
