Hi Alexander, On 9 August 2016 at 08:11, Alexander Graf <ag...@suse.de> wrote: > > On 08/09/2016 03:57 PM, Simon Glass wrote: >> >> Hi Alexander, >> >> On 9 August 2016 at 00:48, Alexander Graf <ag...@suse.de> wrote: >>> >>> >>>> Am 08.08.2016 um 23:44 schrieb Simon Glass <s...@chromium.org>: >>>> >>>> Hi Alexander, >>>> >>>>> On 8 August 2016 at 08:06, Alexander Graf <ag...@suse.de> wrote: >>>>> We generate a few tables on x86 today that really can be used on ARM just >>>>> the same. One such example is the SMBIOS table, which people use with >>>>> tools >>>>> like "dmidecode" to identify which hardware they are running on. >>>>> >>>>> We're slowly growing needs to collect serial numbers from various devices >>>>> on ARM and SMBIOS seems the natural choice. So this patch set moves the >>>>> current SMBIOS generation into generic code and adds serial number >>>>> exposure >>>>> to it. >>>> >>>> Shouldn't we use device tree? Why would an ARM device use SMBIOS? >>> >>> Mostly because SBBR dictates it and every ARM server platform out there >>> provides SMBIOS tables ;). >>> >>> Also, both describe very different things. At least I have never seen >>> things like "The chassy of this server has 2 power connectors and is blue" >>> in device tree. >> >> So there is no DT binding for this information? Does this mean that >> U-Boot on ARM needs to pass information through just 'sitting in RAM >> somewhere' like x86? > > > I don't think there's a non-EFI way on ARM to pass this through at all, > correct. That's nothing new though - things like KASLR also depend on EFI.
That feels like it could just be done in U-Boot. The proliferation of bootloader stuff in Linux bugs me. It's the lowest-common-denominator problem. To me it seems that UEFI and U-Boot should implement these features, and then Linux doesn't need to. Anyway I do understand where you are going. Is it possible to provide EFI tables to Linux but not EFI boot/run-time services? Regards, Simon _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
