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

[Launchpad Bug Tracker]

This bug was fixed in the package u-boot - 2021.01+dfsg-3ubuntu0~20.04.1

---------------
u-boot (2021.01+dfsg-3ubuntu0~20.04.1) focal; urgency=medium

  * SRU of 2021.01+dfsg-3 from hirsute to enable booting on HiFive Unmatched
    LP: #1934791, LP: #1925267, LP: #1923162

  [ Dimitri John Ledkov ]
  * Import meta-sifive u-boot patches.
  * Enable sifive_hifive_unmatched_fu740 target.
  * Build-depend on opensbi with fu740 errata fix.
  * Set default FDT files for the sifive boards.
  * Set USE_PREBOOT on unmatched board too (just like unleashed & qemu),
    otherwise u-boot's fdtfile from itb is not used (i.e. when
    extlinux.conf does not specify fdtdir). LP: #1923162
  * Unapply unmatched patches, whilst building unleashed platform. Fixes
    failure to boot from sd-card on Unleashed. LP: #1924761
  * sifive-unleashed-default-fdt-files.patch: split into unleashed &
    unmatched separate patches, for ease of upstreaming to meta-sifive and
    u-boot upstreams. Also this ensures that unleashed target is built
    with fdtfile= set, as unleashed target unapplies lots of patches.
  * Apply upstreamed patch "cmd: pxe_utils: sysboot: fix crash if either
    board or soc are not set." This fixes a crash booting any
    extlinux.conf with fdtdir specified, and dtbfile not set and
    "soc"/"board" not set in the environment LP: #1923162

  [ William 'jawn-smith' Wilson ]
  * Re-added d/p/lzo-to-lzno.patch as lzop is in universe prior to Groovy
  * Updated d/targets for compatibility with focal arm-trusted-firmware
  * Updated d/control for compatibility with focal debhelper
  * Reinstate rpi-config-migration script for focal
  * Prevent stripping of qemu binaries under focal where strip doesn't
    recognize the format

  [ Dave Jones ]
  * In d/control update opensbi dependency for focal

 -- William 'jawn-smith' Wilson <william.wilson at canonical.com>  Fri, 25
Jun 2021 18:21:47 +0000

** Changed in: u-boot (Ubuntu Focal)
       Status: Fix Committed => 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:
  Confirmed
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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