[Bug 1995860] Re: Emulation of fence.tso hangs in endless loop

[Benjamin Drung]

** Also affects: u-boot (Ubuntu Kinetic)
   Importance: Undecided
       Status: New

** Also affects: opensbi (Ubuntu Kinetic)
   Importance: Undecided
       Status: New

** Also affects: u-boot-nezha (Ubuntu Kinetic)
   Importance: Undecided
       Status: New

** Also affects: u-boot (Ubuntu Lunar)
   Importance: Undecided
       Status: Fix Committed

** Also affects: opensbi (Ubuntu Lunar)
   Importance: Undecided
       Status: Fix Released

** Also affects: u-boot-nezha (Ubuntu Lunar)
   Importance: Undecided
       Status: Fix Committed

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https://bugs.launchpad.net/bugs/1995860

Title:
  Emulation of fence.tso hangs in endless loop

Status in opensbi package in Ubuntu:
  Fix Released
Status in u-boot package in Ubuntu:
  Fix Committed
Status in u-boot-nezha package in Ubuntu:
  Fix Committed
Status in opensbi source package in Kinetic:
  New
Status in u-boot source package in Kinetic:
  New
Status in u-boot-nezha source package in Kinetic:
  New
Status in opensbi source package in Lunar:
  Fix Released
Status in u-boot source package in Lunar:
  Fix Committed
Status in u-boot-nezha source package in Lunar:
  Fix Committed
Status in opensbi package in Debian:
  Unknown

Bug description:
  OpenSBI 1.1 has added an emulation of the fence.tso instruction
  missing on the Allwinner D1 SOC. This emulation hangs in an endless
  loop. This is fixed by the following upstream patch:

  111afc12306e ("lib: sbi_illegal_insn: Fix FENCE.TSO emulation infinite
  trap loop")

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