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authorAndy Lutomirski <luto@kernel.org>2020-06-26 20:21:14 +0300
committerThomas Gleixner <tglx@linutronix.de>2020-07-01 11:00:26 +0300
commite4ef7de160c6b12639c4fc49bcacb25b860ac76d (patch)
tree849c5af563ecac637032422084976c23b724d387 /tools
parentffae641f57476369b4d503402b37ebe489d23395 (diff)
downloadlinux-e4ef7de160c6b12639c4fc49bcacb25b860ac76d.tar.xz
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.c15
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;
}