[Bug 1900774] Re: [arm64] EFI stub: ERROR: FIRMWARE BUG: efi_loaded_image_t::image_base has bogus value

[dann frazier]

** Description changed:

  [Impact]
  When booting a kernel >= 5.7 via GRUB on an arm64 server, the EFI stub falsely reports a firmware bug:
  
  EFI stub: Booting Linux Kernel...
  EFI stub: EFI_RNG_PROTOCOL unavailable, no randomness supplied
  EFI stub: ERROR: FIRMWARE BUG: efi_loaded_image_t::image_base has bogus value
  EFI stub: Using DTB from configuration table
  EFI stub: Exiting boot services and installing virtual address map...
  [    0.000000] Booting Linux on physical CPU 0x0000000000 [0x431f0a10]
  
  [Test Case]
- Boot the groovy kernel.
+ Boot the arm64 groovy kernel, or any other kernel >= 5.7.
+ Regression test on x86.
  
  [Fix]
  https://github.com/rhboot/grub2/commit/1d5ef08216edec4d31d0e10cfdb30b5ebfef7a45
  
- [Regression Impact]
+ [Where Problems Could Occur]
+ The fix is in GRUB's EFI loader, so problems would likely appear early in the boot of the kernel (during EFI stub processing).

** Description changed:

  [Impact]
  When booting a kernel >= 5.7 via GRUB on an arm64 server, the EFI stub falsely reports a firmware bug:
  
  EFI stub: Booting Linux Kernel...
  EFI stub: EFI_RNG_PROTOCOL unavailable, no randomness supplied
  EFI stub: ERROR: FIRMWARE BUG: efi_loaded_image_t::image_base has bogus value
  EFI stub: Using DTB from configuration table
  EFI stub: Exiting boot services and installing virtual address map...
  [    0.000000] Booting Linux on physical CPU 0x0000000000 [0x431f0a10]
  
  [Test Case]
  Boot the arm64 groovy kernel, or any other kernel >= 5.7.
- Regression test on x86.
+ Regression test on an EFI based x86 system (e.g. lxc --vm)
  
  [Fix]
  https://github.com/rhboot/grub2/commit/1d5ef08216edec4d31d0e10cfdb30b5ebfef7a45
  
  [Where Problems Could Occur]
  The fix is in GRUB's EFI loader, so problems would likely appear early in the boot of the kernel (during EFI stub processing).

-- 
You received this bug notification because you are a member of Ubuntu
Foundations Bugs, which is subscribed to grub2 in Ubuntu.
https://bugs.launchpad.net/bugs/1900774

Title:
  [arm64] EFI stub: ERROR: FIRMWARE BUG: efi_loaded_image_t::image_base
  has bogus value

Status in grub2 package in Ubuntu:
  In Progress
Status in grub2 source package in Focal:
  New
Status in grub2 source package in Groovy:
  New
Status in grub2 source package in Hirsute:
  In Progress

Bug description:
  [Impact]
  When booting a kernel >= 5.7 via GRUB on an arm64 server, the EFI stub falsely reports a firmware bug:

  EFI stub: Booting Linux Kernel...
  EFI stub: EFI_RNG_PROTOCOL unavailable, no randomness supplied
  EFI stub: ERROR: FIRMWARE BUG: efi_loaded_image_t::image_base has bogus value
  EFI stub: Using DTB from configuration table
  EFI stub: Exiting boot services and installing virtual address map...
  [    0.000000] Booting Linux on physical CPU 0x0000000000 [0x431f0a10]

  [Test Case]
  Boot the arm64 groovy kernel, or any other kernel >= 5.7.
  Regression test on an EFI based x86 system (e.g. lxc --vm)

  [Fix]
  https://github.com/rhboot/grub2/commit/1d5ef08216edec4d31d0e10cfdb30b5ebfef7a45

  [Where Problems Could Occur]
  The fix is in GRUB's EFI loader, so problems would likely appear early in the boot of the kernel (during EFI stub processing).

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1900774/+subscriptions