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From: Andy Lutomirski <luto@kernel.org>
To: x86@kernel.org
Cc: linux-kernel@vger.kernel.org,
	Andrew Cooper <andrew.cooper3@citrix.com>,
	Juergen Gross <jgross@suse.com>,
	Andy Lutomirski <luto@kernel.org>
Subject: [PATCH 4/6] selftests/x86/syscall_nt: Add more flag combinations
Date: Fri, 26 Jun 2020 10:21:14 -0700	[thread overview]
Message-ID: <12924e2fe2c5826568b7fc9436d85ca7f5eb1743.1593191971.git.luto@kernel.org> (raw)
In-Reply-To: <cover.1593191971.git.luto@kernel.org>

Add EFLAGS.AC to the mix.

Signed-off-by: Andy Lutomirski <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 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;
 }
-- 
2.25.4


  parent reply	other threads:[~2020-06-26 17:21 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-06-26 17:21 [PATCH 0/6] x86/entry: Fixes Andy Lutomirski
2020-06-26 17:21 ` [PATCH 1/6] x86/entry: Assert that syscalls are on the right stack Andy Lutomirski
2020-07-01  8:04   ` [tip: x86/urgent] " tip-bot2 for Andy Lutomirski
2020-07-06 14:34   ` [PATCH] x86/entry: Mark check_user_regs() noinstr Peter Zijlstra
2020-06-26 17:21 ` [PATCH 2/6] x86/entry: Move SYSENTER's regs->sp and regs->flags fixups into C Andy Lutomirski
2020-07-01  8:04   ` [tip: x86/urgent] " tip-bot2 for Andy Lutomirski
2020-06-26 17:21 ` [PATCH 3/6] x86/entry/64/compat: Fix Xen PV SYSENTER frame setup Andy Lutomirski
2020-06-26 17:21   ` Andy Lutomirski
2020-06-28  2:47   ` Boris Ostrovsky
2020-06-28  2:47     ` Boris Ostrovsky
2020-07-01  8:04   ` [tip: x86/urgent] " tip-bot2 for Andy Lutomirski
2020-07-01 15:42   ` [PATCH 3/6] " Brian Gerst
2020-07-01 15:42     ` Brian Gerst
2020-07-01 18:39     ` Andy Lutomirski
2020-07-01 18:39       ` Andy Lutomirski
2020-07-02 12:54       ` Thomas Gleixner
2020-07-02 12:54         ` Thomas Gleixner
2020-06-26 17:21 ` Andy Lutomirski [this message]
2020-07-01  8:04   ` [tip: x86/urgent] selftests/x86/syscall_nt: Add more flag combinations tip-bot2 for Andy Lutomirski
2020-06-26 17:21 ` [PATCH 5/6] selftests/x86/syscall_nt: Clear weird flags after each test Andy Lutomirski
2020-07-01  8:04   ` [tip: x86/urgent] " tip-bot2 for Andy Lutomirski
2020-06-26 17:21 ` [PATCH 6/6] selftests/x86: Consolidate and fix get/set_eflags() helpers Andy Lutomirski
2020-07-01  8:04   ` [tip: x86/urgent] " tip-bot2 for Andy Lutomirski

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