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34f7f79827
We recently discovered some of our mitigation patching was not safe against other CPUs running concurrently. Add a test which enable/disables all mitigations in a tight loop while also running some stress load. On an unpatched system this almost always leads to an oops and panic/reboot, but we also check if the kernel becomes tainted in case we have a non-fatal oops. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20210507064225.1556312-1-mpe@ellerman.id.au |
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| .. | ||
| .gitignore | ||
| branch_loops.S | ||
| entry_flush.c | ||
| flush_utils.c | ||
| flush_utils.h | ||
| Makefile | ||
| mitigation-patching.sh | ||
| rfi_flush.c | ||
| spectre_v2.c | ||
| uaccess_flush.c | ||