We reverted a couple changes in 4.15.0-72.81 because they were causing a regression (bug 1853326) that was not understood at press time:
b042ff6848684 Revert "arm64: Get rid of __smccc_workaround_1_hvc_*"
5f395b984282e Revert "arm64: Use firmware to detect CPUs that are not affected by Spectre-v2"
This bug is to track the reapplication of these patches, once we've figured out the underlying issue.
We reverted a couple changes in 4.15.0-72.81 because they were causing a regression (bug 1853326) that was not understood at press time:
b042ff6848684 Revert "arm64: Get rid of __smccc_ workaround_ 1_hvc_* "
5f395b984282e Revert "arm64: Use firmware to detect CPUs that are not affected by Spectre-v2"
This bug is to track the reapplication of these patches, once we've figured out the underlying issue.