[Bug 1923162] Re: riscv64 images fail to boot in qemu

[William Wilson]

** Changed in: u-boot (Ubuntu Hirsute)
       Status: Confirmed => Fix Released

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https://bugs.launchpad.net/bugs/1923162

Title:
  riscv64 images fail to boot in qemu

Status in linux-riscv package in Ubuntu:
  Invalid
Status in u-boot package in Ubuntu:
  Fix Released
Status in u-boot-menu package in Ubuntu:
  Fix Released
Status in linux-riscv source package in Focal:
  Invalid
Status in u-boot source package in Focal:
  Fix Released
Status in u-boot-menu source package in Focal:
  Fix Released
Status in linux-riscv source package in Hirsute:
  Invalid
Status in u-boot source package in Hirsute:
  Fix Released
Status in u-boot-menu source package in Hirsute:
  Fix Released

Bug description:
  [Impact]

   * u-boot may crash when attempting to boot extlinux.conf which
  specifies fdtdir; the given u-boot config doesn't specify a dtb
  filename to load; autodetection tries to make one up using $soc &
  $board variables; and if one or both of them are not set (as it is the
  case for qemu) it would crash. Fix this crash by doing validation /
  checking when quering for $soc & $board variables in autodetectionn.

  [Test Plan]

   * Use qemu & uboot produced by the build that fixes this bug report
  properly and attempt to boot hirsute's riscv64+unmatched image.

   * It should boot correctly without a crash / qemu backtrace.

  [Where problems could occur]

   * This patch is bein upstreamed. If one is using external uboot (i.e.
  provided by some other vendor) it may still crash when trying to boot
  Ubuntu's riscv64 rootfs or cloud image.

  [Other Info]
   
   * Patch is being reviewed upstream https://lists.denx.de/pipermail/u-boot/2021-May/449176.html

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