linux-kernel - [tip: x86/urgent] selftests/x86/syscall

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Message-ID: <159359069113.4006.10361236382568138234.tip-bot2@tip-bot2>
Date:   Wed, 01 Jul 2020 08:04:51 -0000
From:   "tip-bot2 for Andy Lutomirski" <tip-bot2@...utronix.de>
To:     linux-tip-commits@...r.kernel.org
Cc:     Andy Lutomirski <luto@...nel.org>,
        Thomas Gleixner <tglx@...utronix.de>, x86 <x86@...nel.org>,
        LKML <linux-kernel@...r.kernel.org>
Subject: [tip: x86/urgent] selftests/x86/syscall_nt: Add more flag combinations

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@...nel.org>
AuthorDate:    Fri, 26 Jun 2020 10:21:14 -07:00
Committer:     Thomas Gleixner <tglx@...utronix.de>
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@...nel.org>
Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
Link: https://lkml.kernel.org/r/12924e2fe2c5826568b7fc9436d85ca7f5eb1743.1593191971.git.luto@kernel.org

---
 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;
 }