[Bug 1965796] Re: missing device-tree fixups

Launchpad Bug Tracker 1965796 at bugs.launchpad.net
Thu Mar 24 16:26:32 UTC 2022


** Merge proposal linked:
   https://code.launchpad.net/~xypron/grub/+git/grub/+merge/417641

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https://bugs.launchpad.net/bugs/1965796

Title:
  missing device-tree fixups

Status in grub2 package in Ubuntu:
  New

Bug description:
  When U-Boot loads a device-tree it makes fixups like adjusting the
  memory size before booting into Linux. When GRUB loads a device-tree
  these fixups are missing. On RISC-V the Linux kernel expects the
  property /chosen/boot-hartidproperty in the device-tree which is set
  during fixups.

  There are two solutions to this:

  Either always load the device-tree in U-Boot or call the
  EFI_DT_FIXUP_PROTOCOL implemented in U-Boot. Calling the protocol
  seems to be the better solution.

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