--- Comment From mranw...@us.ibm.com 2019-04-29 17:43 EDT---
I did some more testing, including toggling
/sys/kernel/debug/powerpc/count_cache_flush and checking the code in xmon
before:
c000db58 7ee00026 mfcrr23
c000db5c fae101a0 std r23,416(r1)
--- Comment From mranw...@us.ibm.com 2019-04-29 14:42 EDT---
An initial test looks good, thank you!
mranweil@ltc-wspoon5:~$ dpkg --list |grep linux-image-4\.15\.0-49
ii linux-image-4.15.0-49-generic4.15.0-49.53
ppc64el Signed kernel
--- Comment From mranw...@us.ibm.com 2019-04-12 14:02 EDT---
I tried out the PPA kernel you posted, Manoj, and it looks good here, too, from
my testing:
mranweil@ltc-wspoon5:~$ cat /proc/version
Linux version 4.15.0-48-generic (buildd@bos02-ppc64el-002) (gcc version 7.3.0
(Ubuntu
--- Comment From eller...@au1.ibm.com 2019-04-12 02:19 EDT---
This passed my tests in simulator.
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https://bugs.launchpad.net/bugs/1822870
Title:
Backport support for software
--- Comment From mranw...@us.ibm.com 2019-04-11 03:16 EDT---
We're missing one more patch - we need 51c3c62b58b3 powerpc: Avoid code
patching freed init sections added in. I will attach a new patch tarball
including that after I try that out.
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--- Comment From mranw...@us.ibm.com 2019-04-10 23:12 EDT---
Hi Manoj,
Looks good, I think, here's some output:
mranweil@ltc-wspoon5:~$ cat /proc/version
Linux version 4.15.0-48-generic (buildd@bos02-ppc64el-015) (gcc version 7.3.0
(Ubuntu 7.3.0-27ubuntu1~18.04))
--- Comment From mranw...@us.ibm.com 2019-04-09 10:04 EDT---
There's a couple extra patches we need to add to have all the mitigations (some
that are from earlier than these DD 2.3 changes) from here:
https://github.com/linuxppc/wiki/wiki/Spectre-and-Meltdown-Related-Commits
I'll attach
--- Comment From mranw...@us.ibm.com 2019-04-02 15:26 EDT---
Disco appears to be missing only this patch on master, but it's included on
master-next:
92edf8df0ff2ae86cc632eeca0e651fd8431d40d powerpc/security: Fix spectre_v2
reporting
The HWE and Cosmic are missing these patches:
