[Bug 1808498] Re: opal-prd occ reset causes hardlockup

[bugproxy]

------- Comment From hegdevasant at in.ibm.com 2019-03-21 04:54 EDT-------
Hello Canonical,

We have verified/tested the fix and it looks good. It fixes the issue
reported in this defect.

Thanks!

-Vasant

** Tags removed: verification-need-bionic verification-needed
** Tags added: verification-done verification-done-bionic

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https://bugs.launchpad.net/bugs/1808498

Title:
  opal-prd occ reset causes hardlockup

Status in The Ubuntu-power-systems project:
  Fix Committed
Status in skiboot package in Ubuntu:
  Fix Released
Status in skiboot source package in Bionic:
  Fix Committed
Status in skiboot source package in Cosmic:
  Fix Released
Status in skiboot source package in Disco:
  Fix Released

Bug description:
  [Impact]

  - Without the fix, the system will crash on upstream hostboot with NMI enabled systems when opal-prd occ reset is triggered on OpenBMC boxes
  - This patch enables HBRT to use HYP special wakeup register in openBMC which until now was only used in FSP based machines

  [Testcase]

  - opal-prd occ reset

  [Regression Potential]
  - Failure of OCC reset command

  [Other Info]

   * Original bug report.

  == Comment: #0 - Shilpasri G. Bhat <shigbhat at in.ibm.com> - 2018-12-14 00:14:51 ==
  On upstream hostboot with NMI enabled, opal-prd occ reset crashes. The following upstream patch needs to be backported to the package to avoid the error.

  commit 05dc67bf4f3d85fc6212d1644d46ce6d8bd71140
  opal-prd: hservice: Enable hservice->wakeup() in BMC

  Contact Information = shigbhat at in.ibm.com

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