[Bug 1850752] Re: Update amd64-microcode to 20191022 for 17h family

[Steve Beattie]

I have prepared test amd64-microcode packages in the ubuntu-security-
proposed ppa https://launchpad.net/~ubuntu-security-
proposed/+archive/ubuntu/ppa/ ; it would be great if someone could test
one of them on a system with an AMD 17h family processer before they get
uploaded to the various proposed pockets.

(Please note that the Ubuntu Security Proposed PPA should not be
generally enabled, as it receives packages that have not been tested
yet.)

Thanks!

** Description changed:

  [Impact]
  
   * New microcode is available for AMD family 17h processors as of
  2019-10-22.
  
  [Test Case]
  
   * There is no testcase for new microcode, as it is unknown what has
  changed.
  
  [Regression Potential]
  
   * New microcode is published without a changelog, thus it is unknown what it fixes or regresses,
     yet it is recommeded to upgrade it. The 17h family microcode has been updated
  
  [Other Info]
  
   * https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-
  firmware.git/commit/?id=2b016afc348ba4b5fb2016ffcb2822f4a293da0c
  
+ For all proposed packages, the change to not override preset defaults
+ from auto-exported conf snippets loaded by initramfs-tools
+ (http://launchpadlibrarian.net/435434785/amd64-microcode_3.20181128.1ubuntu1_3.20181128.1ubuntu2.diff.gz)
+ is incorporated in addition to the newer microcode. This change had
+ already landed in disco and newer, is in the to be superceded package in
+ bionic-proposed, and is new to xenial's amd64-microcode package.
+ 
  This microcode update *may* address the Ryzen 3000 RDRAND bug, but it's
  not clear without any documentation.

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https://bugs.launchpad.net/bugs/1850752

Title:
  Update amd64-microcode to 20191022 for 17h family

Status in amd64-microcode package in Ubuntu:
  Fix Released
Status in amd64-microcode source package in Xenial:
  Confirmed
Status in amd64-microcode source package in Bionic:
  Confirmed
Status in amd64-microcode source package in Disco:
  Confirmed
Status in amd64-microcode source package in Eoan:
  Confirmed
Status in amd64-microcode source package in Focal:
  Fix Released

Bug description:
  [Impact]

   * New microcode is available for AMD family 17h processors as of
  2019-10-22.

  [Test Case]

   * There is no testcase for new microcode, as it is unknown what has
  changed.

  [Regression Potential]

   * New microcode is published without a changelog, thus it is unknown what it fixes or regresses,
     yet it is recommeded to upgrade it. The 17h family microcode has been updated

  [Other Info]

   * https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-
  firmware.git/commit/?id=2b016afc348ba4b5fb2016ffcb2822f4a293da0c

  For all proposed packages, the change to not override preset defaults
  from auto-exported conf snippets loaded by initramfs-tools
  (http://launchpadlibrarian.net/435434785/amd64-microcode_3.20181128.1ubuntu1_3.20181128.1ubuntu2.diff.gz)
  is incorporated in addition to the newer microcode. This change had
  already landed in disco and newer, is in the to be superceded package
  in bionic-proposed, and is new to xenial's amd64-microcode package.

  This microcode update *may* address the Ryzen 3000 RDRAND bug, but
  it's not clear without any documentation.

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