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| author | Andy Lutomirski <[email protected]> | 2019-07-02 03:43:19 +0000 |
|---|---|---|
| committer | Thomas Gleixner <[email protected]> | 2019-07-02 06:45:20 +0000 |
| commit | 9402eaf4c11f0b892eda7b2bcb4654ab34ce34f9 (patch) | |
| tree | 5b392bddeac59062107c2e2adacaf80fc514bc66 /tools/perf/scripts/python/failed-syscalls-by-pid.py | |
| parent | x86/mtrr: Skip cache flushes on CPUs with cache self-snooping (diff) | |
| download | kernel-9402eaf4c11f0b892eda7b2bcb4654ab34ce34f9.tar.gz kernel-9402eaf4c11f0b892eda7b2bcb4654ab34ce34f9.zip | |
selftests/x86: Test SYSCALL and SYSENTER manually with TF set
Make sure that both variants of the nasty TF-in-compat-syscall are
exercised regardless of what vendor's CPU is running the tests.
Also change the intentional signal after SYSCALL to use ud2, which
is a lot more comprehensible.
This crashes the kernel due to an FSGSBASE bug right now.
This test *also* detects a bug in KVM when run on an Intel host. KVM
people, feel free to use it to help debug. There's a bunch of code in this
test to warn instead of going into an infinite looping when the bug gets
triggered.
Reported-by: Vegard Nossum <[email protected]>
Signed-off-by: Andy Lutomirski <[email protected]>
Signed-off-by: Thomas Gleixner <[email protected]>
Cc: "BaeChang Seok" <[email protected]>
Cc: Borislav Petkov <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Paolo Bonzini <[email protected]>
Cc: [email protected]
Cc: "Bae, Chang Seok" <[email protected]>
Link: https://lkml.kernel.org/r/5f5de10441ab2e3005538b4c33be9b1965d1bb63.1562035429.git.luto@kernel.org
Diffstat (limited to 'tools/perf/scripts/python/failed-syscalls-by-pid.py')
0 files changed, 0 insertions, 0 deletions