Hi, Thank you for your answer. At the beginning, I have tried to add arm64 specific code on the arm architecture folder, but it becomes a mess... Nevertheless, I can give an another try with this solution and then we can decide. 2016-04-08 19:30 GMT+02:00 Sascha Hauer <s.hauer@xxxxxxxxxxxxxx>: > Hi Raphaël, > > On Fri, Apr 08, 2016 at 02:01:21PM +0200, Raphaël Poggi wrote: >> Hi all, >> >> I am working on porting barebox on arm64 architecture. >> >> So I have some questions about it: >> >> - Is there any interest for barebox to support this architecture ? > > Definitely, yes. > >> >> - My port is running at EL1 for the moment, does the bootloader have >> to run at EL3 ? If yes, do you have hint to achieve this ? >> I think UEFI is running at EL3, but I am confused about that, >> what is the difference between UEFI and barebox ? Are they both >> booloader ? (I guess it is a "noob" question :/) > > UEFI is an interface to the firmware whereas barebox is a firmware. We > could implement a UEFI interface for barebox (the U-Boot guys already > did this). Also barebox can run on top of firmware with a (U)Efi > interface. > >> >> - I have some issues with malloc, when I use tlsf all malloc failed, >> but not with dlmalloc implementation, do you have an idea about this ? > > Do you have TLSF_64BIT defined? You may have defined it automatically > when you have CONFIG_64BIT defined, but if not tlsf malloc will not > work. > >> >> >> At the moment the current limitations of my port are : >> - MMU not implemented >> - barebox running at EL1 >> - barebox env not working >> - only test on qemu >> >> If you want to test it: >> https://github.com/raphui/barebox/tree/dev/armv8a_cleanup > > From a first look it the arm64 code looks very familiar. Do you think we > could merge it into the arm architecture rather than creating a new > architecture? > > I don't know in which exception level barebox should finally run in, but > I don't think that's a showstopper. > > Sascha > > -- > Pengutronix e.K. | | > Industrial Linux Solutions | http://www.pengutronix.de/ | > Peiner Str. 6-8, 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 _______________________________________________ barebox mailing list barebox@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/barebox
