The following commit has been merged into the x86/urgent branch of tip:
Commit-ID: e4ef7de160c6b12639c4fc49bcacb25b860ac76d
Gitweb: https://git.kernel.org/tip/e4ef7de160c6b12639c4fc49bcacb25b860ac76d
Author: Andy Lutomirski <luto@xxxxxxxxxx>
AuthorDate: Fri, 26 Jun 2020 10:21:14 -07:00
Committer: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
CommitterDate: Wed, 01 Jul 2020 10:00:26 +02:00
selftests/x86/syscall_nt: Add more flag combinations
Add EFLAGS.AC to the mix.
Signed-off-by: Andy Lutomirski <luto@xxxxxxxxxx>
Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Link: https://lkml.kernel.org/r/12924e2fe2c5826568b7fc9436d85ca7f5eb1743.1593191971.git.luto@xxxxxxxxxx
---
tools/testing/selftests/x86/syscall_nt.c | 15 +++++++++++++++
1 file changed, 15 insertions(+)
diff --git a/tools/testing/selftests/x86/syscall_nt.c b/tools/testing/selftests/x86/syscall_nt.c
index 02309a1..f060534 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;
}
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