[Bug 1888231] Re: [UBUNTU 20.04] zipl: Fix KVM IPL without bootindex

[Łukasz Zemczak]

Hello bugproxy, or anyone else affected,

Accepted s390-tools into focal-proposed. The package will build now and
be available at
https://launchpad.net/ubuntu/+source/s390-tools/2.12.0-0ubuntu3.1 in a
few hours, and then in the -proposed repository.

Please help us by testing this new package.  See
https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how
to enable and use -proposed.  Your feedback will aid us getting this
update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug,
mentioning the version of the package you tested, what testing has been
performed on the package and change the tag from verification-needed-
focal to verification-done-focal. If it does not fix the bug for you,
please add a comment stating that, and change the tag to verification-
failed-focal. In either case, without details of your testing we will
not be able to proceed.

Further information regarding the verification process can be found at
https://wiki.ubuntu.com/QATeam/PerformingSRUVerification .  Thank you in
advance for helping!

N.B. The updated package will be released to -updates after the bug(s)
fixed by this package have been verified and the package has been in
-proposed for a minimum of 7 days.

** Changed in: s390-tools (Ubuntu Focal)
       Status: In Progress => Fix Committed

** Tags added: verification-needed verification-needed-focal

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https://bugs.launchpad.net/bugs/1888231

Title:
  [UBUNTU 20.04] zipl: Fix KVM IPL without bootindex

Status in Ubuntu on IBM z Systems:
  In Progress
Status in s390-tools package in Ubuntu:
  Fix Released
Status in s390-tools source package in Focal:
  Fix Committed
Status in s390-tools source package in Groovy:
  Fix Released

Bug description:
  [Impact] 
   * Without bootindex specified there is no IPL parmblock on KVM which can be read by the stage3 loader.
   * Backported to allow IBM Z users to boot KVM machines without secure initial program loader (IPL) data and without bootindex= parameter specified

  [Test Case]
   * prepare a new non-secure IPL and try booting via this IPL, without specifying the bootindex= parameter
   * check if stage3 loader runs successfully

  [Regression Potential]

   * regressions in zipl/stage3 could break newly created IPLs
   * If an IPL is broken, the boot sequence on IBM Z machines could not work
   * the package is only available on s390x and thus could only affects IBM Z machines
   * Existing boot devices / IPLs would not be affected

  [Other Info]
   * Needs to be tested/verified by IBM internally
   * Patch is included in upstream 2.14.0 release
   * Related to LP: #1892350 and LP: #1893027

  === Original Description ===
  Description:   zipl: Fix KVM IPL without bootindex
  Symptom:       Failed IPL on KVM when no bootindex is specified.
  Problem:       Without bootindex specified there is no IPL parmblock
                 on KVM which can be read by the stage3 loader.
  Solution:      In case diag308 gives a response code 0x102 the stage3
                 loader can safely assume that no secure IPL is required
                 since no IPL report block exists.
  Reproduction:  IPL on KVM without 'bootindex=' attached.
  Upstream-ID:   c9066bf5497300db5e0ba11bf111683ea225d8c8
                 b7f1977d3f9332f82e7f388fb18076b89b83944e

  Component:     s390-tools 2.14

  Should also be integrated into 20.04, where secure boot is enabled.

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