Hi Miquel, On 2 May 2018 at 02:59, Miquel Raynal <miquel.ray...@bootlin.com> wrote: > Sandbx is run in userspace. What is done in baremetal applications like > U-Boot is using an address in memory which is supposedly free to load > and store data to it. The user interaction in U-Boot's shell works like > that and it is hard to find another way to transfer a 'buffer' from one > side to the other. It is always possible to fill an environment > variable, but not that easy to use. > > Of course our Linux distributions do not allow such salvage accesses and > Sandbox will simply be killed. To avoid such scenario, it is possible, > when compiling the Sandbox driver, to allocate some memory so the > pointer that is given does not point to an unauthorized area anymore. > This just give the possibility to run all the TPM commands without > killing Sandbox. >
map_sysmem() and map_to_sysmem() are supposed to handle this, assuming I understand the problem correctly. Regards, Simon _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de https://lists.denx.de/listinfo/u-boot
