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| author | Andy Lutomirski <luto@kernel.org> | 2020-06-26 10:21:14 -0700 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2020-07-01 10:00:26 +0200 |
| commit | e4ef7de160c6b12639c4fc49bcacb25b860ac76d (patch) | |
| tree | 849c5af563ecac637032422084976c23b724d387 /tools | |
| parent | ffae641f57476369b4d503402b37ebe489d23395 (diff) | |
| download | lwn-e4ef7de160c6b12639c4fc49bcacb25b860ac76d.tar.gz lwn-e4ef7de160c6b12639c4fc49bcacb25b860ac76d.zip | |
selftests/x86/syscall_nt: Add more flag combinations
Add EFLAGS.AC to the mix.
Signed-off-by: Andy Lutomirski <luto@kernel.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lkml.kernel.org/r/12924e2fe2c5826568b7fc9436d85ca7f5eb1743.1593191971.git.luto@kernel.org
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/testing/selftests/x86/syscall_nt.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/tools/testing/selftests/x86/syscall_nt.c b/tools/testing/selftests/x86/syscall_nt.c index 02309a195041..f060534b66a0 100644 --- a/tools/testing/selftests/x86/syscall_nt.c +++ b/tools/testing/selftests/x86/syscall_nt.c @@ -73,6 +73,12 @@ int main(void) printf("[RUN]\tSet NT and issue a syscall\n"); do_it(X86_EFLAGS_NT); + printf("[RUN]\tSet AC and issue a syscall\n"); + do_it(X86_EFLAGS_AC); + + printf("[RUN]\tSet NT|AC and issue a syscall\n"); + do_it(X86_EFLAGS_NT | X86_EFLAGS_AC); + /* * Now try it again with TF set -- TF forces returns via IRET in all * cases except non-ptregs-using 64-bit full fast path syscalls. @@ -80,8 +86,17 @@ int main(void) sethandler(SIGTRAP, sigtrap, 0); + printf("[RUN]\tSet TF and issue a syscall\n"); + do_it(X86_EFLAGS_TF); + printf("[RUN]\tSet NT|TF and issue a syscall\n"); do_it(X86_EFLAGS_NT | X86_EFLAGS_TF); + printf("[RUN]\tSet AC|TF and issue a syscall\n"); + do_it(X86_EFLAGS_AC | X86_EFLAGS_TF); + + printf("[RUN]\tSet NT|AC|TF and issue a syscall\n"); + do_it(X86_EFLAGS_NT | X86_EFLAGS_AC | X86_EFLAGS_TF); + return nerrs == 0 ? 0 : 1; } |