On Mon, Oct 12, 2015 at 04:17:54PM +0200, Ingo Molnar wrote: > * Matt Fleming <[email protected]> wrote: > > On Mon, 12 Oct, at 02:49:36PM, Ingo Molnar wrote: > > > So why not unmap them after bootup? Is there any reason to call into EFI > > > code > > > while the system is up and running? > > > > That's where the runtime services code lives. So if you want things like > > EFI > > variables (used by the distro installer, among other things) you need to > > map the > > runtime regions. > > So EFI variables could be queried during bootup and saved on the Linux side.
That wouldn't support writing to EFI variables. Or using the EFI capsule update system to update firmware. - Josh Triplett -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
