Am 14.11.19 um 23:09 schrieb Rob Herring: > On Tue, Nov 12, 2019 at 4:47 AM Andreas Färber <afaerber@xxxxxxx> wrote: >> On the other hand, one might argue that such information should just be >> parsed by EBBR-conformant bootloaders and be passed to the kernel via >> standard UEFI interfaces and DMI tables. But I'm not aware of Barebox >> having implemented any of that yet, and even for U-Boot (e.g., Realtek >> based consumer devices...) not everyone has the GPL sources or tools to >> update their bootloader. So, having the kernel we control gather >> information relevant to kernel developers does make some sense to me. > > UEFI and DMI are orthogonal, right. You can't expect DMI on a UEFI+DT system. Not sure, that's why I CC'ed the EBBR folks for input. If it's not mandatory today, the next revision of EBBR could just require it - if that's the unified way between SBBR and EBBR. Little point in doing it only for EBBR. On my UEFI+DT based Raspberry Pi 3 Model B I do see it, note the non-filled Processor Information delivered by U-Boot: raspi3:~ # dmidecode # dmidecode 3.2 Getting SMBIOS data from sysfs. SMBIOS 3.0 present. 7 structures occupying 253 bytes. Table at 0x3CB3E020. Handle 0x0000, DMI type 0, 24 bytes BIOS Information Vendor: U-Boot Version: 2019.10 Release Date: 10/26/2019 ROM Size: 64 kB Characteristics: PCI is supported BIOS is upgradeable Selectable boot is supported I2O boot is supported Targeted content distribution is supported Handle 0x0001, DMI type 1, 27 bytes System Information Manufacturer: raspberrypi Product Name: rpi Version: Not Specified Serial Number: 00000000******** UUID: 30303030-3030-3030-6437-623461336666 Wake-up Type: Reserved SKU Number: Not Specified Family: Not Specified Handle 0x0002, DMI type 2, 14 bytes Base Board Information Manufacturer: raspberrypi Product Name: rpi Version: Not Specified Serial Number: Not Specified Asset Tag: Not Specified Features: Board is a hosting board Location In Chassis: Not Specified Chassis Handle: 0x0000 Type: Motherboard Handle 0x0003, DMI type 3, 21 bytes Chassis Information Manufacturer: raspberrypi Type: Desktop Lock: Not Present Version: Not Specified Serial Number: Not Specified Asset Tag: Not Specified Boot-up State: Safe Power Supply State: Safe Thermal State: Safe Security Status: None OEM Information: 0x00000000 Height: Unspecified Number Of Power Cords: Unspecified Contained Elements: 0 Handle 0x0004, DMI type 4, 48 bytes Processor Information Socket Designation: Not Specified Type: Central Processor Family: Unknown Manufacturer: Unknown ID: 00 00 00 00 00 00 00 00 Version: Unknown Voltage: Unknown External Clock: Unknown Max Speed: Unknown Current Speed: Unknown Status: Unpopulated Upgrade: None L1 Cache Handle: Not Provided L2 Cache Handle: Not Provided L3 Cache Handle: Not Provided Serial Number: Not Specified Asset Tag: Not Specified Part Number: Not Specified Characteristics: None Handle 0x0005, DMI type 32, 11 bytes System Boot Information Status: No errors detected Handle 0x0006, DMI type 127, 4 bytes End Of Table Regards, Andreas -- SUSE Software Solutions Germany GmbH Maxfeldstr. 5, 90409 Nürnberg, Germany GF: Felix Imendörffer HRB 36809 (AG Nürnberg)
