Messages in this thread | | | Date | Sat, 10 Feb 2018 15:31:23 +0300 | From | Alexander Sergeyev <> | Subject | update spectre v2 microcodes blacklist |
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Hello,
Intel released an updated microcode revision guidance [1] (8 Feb). The link is available in press-release [2], but it's quite easy to miss.
Some microcode revisions that were blacklisted before are now tested and pronounced production-ready:
> Lines with “***” were previously recommended to discontinue use. > Subsequent testing by Intel has determined that these were unaffected > by the stability issues and have been re-released without > modification.
I didn't fully match the updated revision guidance and spectre_bad_microcodes[] in arch/x86/kernel/cpu/intel.c, but at least microcode 0xc2 for intel skylakes should not be blacklisted anymore.
The update is also revelant to a recent blacklist backport to 4.9-stable: https://patchwork.kernel.org/patch/10209021/
[1] https://newsroom.intel.com/wp-content/uploads/sites/11/2018/02/microcode-update-guidance.pdf [2] https://newsroom.intel.com/news/security-issue-update-progress-continues-firmware-updates/
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