SRU request submitted:
https://lists.ubuntu.com/archives/kernel-team/2018-February/090240.html
** Description changed:
+ == SRU Justification ==
+ IBM is requesting these two commits in Xenial, which are already
+ in Artful and Bionic. These commits allow identifying the microcode level
+ [MCL] of a [Z] system, hence let's one [IBM] know if the level includes
+ mitigation for Spectre or not.
+
+ Both commits are in mailine as of v4.12-rc1.
+
+ == Fixes ==
+ 09214545c4a4 ("s390/bitops: add for_each_set_bit_inv helper")
+ 157467ba9fb7 ("s390/cpuinfo: show facilities as reported by stfle")
+
+ == Regression Potential ==
+ Low. These fixes are specific to s390.
+
+
+ == Original Bug Description ==
Please backport this upstream commit:
commit 157467ba9fb7e379f0540707dd89111de441e45e
Author: Heiko Carstens <[email protected]>
Date: Sat Feb 25 12:16:48 2017 +0100
- s390/cpuinfo: show facilities as reported by stfle
-
- Add a new line to /proc/cpuinfo which shows all available facilities
- as reported by the stfle instruction:
-
- > cat /proc/cpuinfo
- ...
- facilities : 0 1 2 3 4 6 7 ...
- ...
+ s390/cpuinfo: show facilities as reported by stfle
+
+ Add a new line to /proc/cpuinfo which shows all available facilities
+ as reported by the stfle instruction:
+
+ > cat /proc/cpuinfo
+ ...
+ facilities : 0 1 2 3 4 6 7 ...
+ ...
As pre-req, also apply commit 9194bc62e6314f4d8cef60e80070ca2bb4182e99
Author: Heiko Carstens <[email protected]>
Date: Sat Feb 25 12:16:31 2017 +0100
- s390/bitops: add for_each_set_bit_inv helper
-
- Same helper function like for_each_set_bit in generic code.
-
- which introduces for_each_set_bit_inv() that is used to process the
facilities bits.
+ s390/bitops: add for_each_set_bit_inv helper
+
+ Same helper function like for_each_set_bit in generic code.
+
+ which introduces for_each_set_bit_inv() that is used to process the
+ facilities bits.
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https://bugs.launchpad.net/bugs/1744736
Title:
Ubuntu 16.04 - s390/cpuinfo: show facilities as reported by stfle
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