On 4/19/22 03:05, AKASHI Takahiro wrote:
With this patch set[1] applied, UEFI subsystem maintains a list of its disk objects dynamically at runtime based on block device's probing. (See "issues" and "prerequisite" below.)
[1] https://github.com/t-akashi/u-boot/tree/efi/dm_disk
For instance, => dm tree Class Index Probed Driver Name
root 0 [ + ] root_driver root_driver ... pci 0 [ + ] pci_generic_ecam |-- pcie@10000000 ... ahci 0 [ ] ahci_pci | |-- ahci_pci scsi 0 [ ] ahci_scsi | | `-- ahci_scsi usb 0 [ ] xhci_pci | `-- xhci_pci ... => efi devices Missing RNG device for EFI_RNG_PROTOCOL No EFI system partition Unable to find TPMv2 device Device Device Path ================ ==================== 000000013eee88d0 /VenHw(..) 000000013ffeb798 /VenHw(..)/Uart(0,0,D,D) 000000013eeeb810 /VenHw(..)/MAC(525252525252,1) => scsi rescan
With the series binding block devices after initializing the UEFI sub-system works fine. Also unbinding is reflected in the EFI devices.
But this series breaks UEFI compliance. All block devices must be probed before booting. Without this GRUB will not be able to read the boot partition with vmlinuz and initrd.
Will you provide the missing patch?
Best regards
Heinrich