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| author | Josh Poimboeuf <jpoimboe@kernel.org> | 2022-06-14 15:07:19 -0700 |
|---|---|---|
| committer | Borislav Petkov <bp@suse.de> | 2022-06-27 10:34:00 +0200 |
| commit | 0fe4aeea9c01baabecc8c3afc7889c809d939bc2 (patch) | |
| tree | 7b2532b4d57abff89e5fd5203ee8743df6dd3aea /tools/objtool | |
| parent | 3ebc170068885b6fc7bedda6c667bb2c4d533159 (diff) | |
x86/bugs: Do IBPB fallback check only once
When booting with retbleed=auto, if the kernel wasn't built with
CONFIG_CC_HAS_RETURN_THUNK, the mitigation falls back to IBPB. Make
sure a warning is printed in that case. The IBPB fallback check is done
twice, but it really only needs to be done once.
Signed-off-by: Josh Poimboeuf <jpoimboe@kernel.org>
Signed-off-by: Borislav Petkov <bp@suse.de>
Diffstat (limited to 'tools/objtool')
0 files changed, 0 insertions, 0 deletions