On Tue, Mar 16, 2021 at 08:03:01AM +0000, Denis Osterland-Heim wrote: > Hi Sascha, > > Am Montag, den 15.03.2021, 09:04 +0100 schrieb Sascha Hauer: > > Hi Denis, > > > > On Fri, Mar 12, 2021 at 02:39:40PM +0000, Denis Osterland-Heim wrote: > > > Hi, > > > > > > It would be no problem to do it in a script. > > > I did it as a fist prove of concept. > > > My opinion is, that this hard coded implementation give stronger > > > guarantee that this code is really executed. > > > > You could also create a C function which you call from your board code. > good Idea > > > > > > > > > I would love to implement the HAB to check FIT signatures, > > > but with MMU enabled it will not work AFAIK and code requiring MMU disabled is not welcome. > > > > Are you sure it doesn't work? What I know is that the jump table for the > > HAB function is placed in the zero page which is set to faulting > > normally when the MMU is enabled. If that's the only problem we could > > solve that. > I would like to give it a try. > > enable CONFIG_ARCH_HAS_ZERO_PAGE > > zero_page_access(); > pvt->some_function(); > zero_page_faulting(); > > right? Yes, right. Sascha -- Pengutronix e.K. | | Steuerwalder Str. 21 | http://www.pengutronix.de/ | 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 | _______________________________________________ barebox mailing list barebox@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/barebox
