[Bug 2098421] Update Released

[Nick Rosbrook]

The verification of the Stable Release Update for u-boot has completed
successfully and the package is now being released to -updates.
Subsequently, the Ubuntu Stable Release Updates Team is being
unsubscribed and will not receive messages about this bug report.  In
the event that you encounter a regression using the package from
-updates please report a new bug using ubuntu-bug and tag the bug report
regression-update so we can easily find any regressions.

-- 
You received this bug notification because you are a member of Ubuntu
Foundations Bugs, which is subscribed to u-boot in Ubuntu.
https://bugs.launchpad.net/bugs/2098421

Title:
  [SRU] U-Boot 2024.01 fails to boot on RISC-V with QEMU 9.0 and cpu=max

Status in u-boot package in Ubuntu:
  Fix Released
Status in u-boot source package in Noble:
  Fix Released
Status in u-boot source package in Oracular:
  Fix Released
Status in u-boot source package in Plucky:
  Fix Released

Bug description:
  [ Impact ]

  RISC-V device-trees have moved to using riscv,isa-extensions instead
  of riscv,isa. If riscv,isa is missing, U-Boot 2024.01 fails to boot.
  This can be demonstrated with QEMU 9.0 and cpu=max.

  The following patches provide a remedy:

  0d95add3b1c7 ("riscv: cpu: improve multi-letter extension detection in supports_extension()"
  b90edde70127 ("riscv: don't read riscv, isa in the riscv cpu's get_desc()")
  f39b1b77d822 ("riscv: support extension probing using riscv, isa-extensions")

  [Test Plan ]

  With QEMU 9.0 installed run:

  qemu-system-riscv64 -M virt -cpu max \
  -kernel /usr/lib/u-boot/qemu-riscv64_smode/uboot.elf

  For regression testing:

  Install u-boot-sifive on the Unmatched board and boot.
  Install u-boot-microchip on the Icicle board and boot.
  Install u-boot-starfive on the VisionFive 2 board and boot.

  [ Where problems could occur ]

  Booting on QEMU or real hardware might fail if the implementation of
  ISA string parsing were incorrect.

  [ Other Info ]

  n/a

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/u-boot/+bug/2098421/+subscriptions