From: Jinjie Ruan <ruanjinjie@huawei.com>
To: <catalin.marinas@arm.com>, <will@kernel.org>,
<chenhuacai@kernel.org>, <kernel@xen0n.name>, <hca@linux.ibm.com>,
<gor@linux.ibm.com>, <agordeev@linux.ibm.com>,
<borntraeger@linux.ibm.com>, <svens@linux.ibm.com>,
<oleg@redhat.com>, <tglx@kernel.org>, <mingo@redhat.com>,
<bp@alien8.de>, <dave.hansen@linux.intel.com>, <hpa@zytor.com>,
<arnd@arndb.de>, <shuah@kernel.org>, <kevin.brodsky@arm.com>,
<ruanjinjie@huawei.com>, <yeoreum.yun@arm.com>,
<anshuman.khandual@arm.com>, <thuth@redhat.com>,
<ryan.roberts@arm.com>, <mark.rutland@arm.com>, <song@kernel.org>,
<ziyao@disroot.org>, <linusw@kernel.org>,
<schuster.simon@siemens-energy.com>, <jremus@linux.ibm.com>,
<akpm@linux-foundation.org>, <mathieu.desnoyers@efficios.com>,
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<linux-kernel@vger.kernel.org>, <loongarch@lists.linux.dev>,
<linux-s390@vger.kernel.org>, <linux-arch@vger.kernel.org>,
<linux-kselftest@vger.kernel.org>
Subject: [PATCH v14 4/4] selftests: sud_test: Support aarch64
Date: Fri, 20 Mar 2026 18:42:22 +0800 [thread overview]
Message-ID: <20260320104222.1381274-5-ruanjinjie@huawei.com> (raw)
In-Reply-To: <20260320104222.1381274-1-ruanjinjie@huawei.com>
From: kemal <kmal@cock.li>
Support aarch64 to test "Syscall User Dispatch" feature with
sud_test selftest testcase.
On qemu-kvm machine, the sud_benchmark test results are as below:
# ./sud_benchmark
Calibrating test set to last ~5 seconds...
test iterations = 24500000
Avg syscall time 208ns.
Enabling syscall trapping.
Caught sys_1c2
trapped_call_count 1, native_call_count 0.
Avg syscall time 213ns.
Interception overhead: 2.5% (+5ns).
Reviewed-by: Yeoreum Yun <yeoreum.yun@arm.com>
Signed-off-by: kemal <kmal@cock.li>
Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com>
---
tools/testing/selftests/syscall_user_dispatch/sud_benchmark.c | 2 +-
tools/testing/selftests/syscall_user_dispatch/sud_test.c | 4 ++++
2 files changed, 5 insertions(+), 1 deletion(-)
diff --git a/tools/testing/selftests/syscall_user_dispatch/sud_benchmark.c b/tools/testing/selftests/syscall_user_dispatch/sud_benchmark.c
index 073a03702ff5..6059abe75cb3 100644
--- a/tools/testing/selftests/syscall_user_dispatch/sud_benchmark.c
+++ b/tools/testing/selftests/syscall_user_dispatch/sud_benchmark.c
@@ -41,7 +41,7 @@
* out of the box, but don't enable them until they support syscall user
* dispatch.
*/
-#if defined(__x86_64__) || defined(__i386__)
+#if defined(__x86_64__) || defined(__i386__) || defined(__aarch64__)
#define TEST_BLOCKED_RETURN
#endif
diff --git a/tools/testing/selftests/syscall_user_dispatch/sud_test.c b/tools/testing/selftests/syscall_user_dispatch/sud_test.c
index b855c6000287..3ffea2f4a66d 100644
--- a/tools/testing/selftests/syscall_user_dispatch/sud_test.c
+++ b/tools/testing/selftests/syscall_user_dispatch/sud_test.c
@@ -192,6 +192,10 @@ static void handle_sigsys(int sig, siginfo_t *info, void *ucontext)
((ucontext_t *)ucontext)->uc_mcontext.__gregs[REG_A0] =
((ucontext_t *)ucontext)->uc_mcontext.__gregs[REG_A7];
#endif
+#ifdef __aarch64__
+ ((ucontext_t *)ucontext)->uc_mcontext.regs[0] = (unsigned int)
+ ((ucontext_t *)ucontext)->uc_mcontext.regs[8];
+#endif
}
int setup_sigsys_handler(void)
--
2.34.1
next prev parent reply other threads:[~2026-03-20 10:41 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-03-20 10:42 [PATCH v14 0/4] arm64: Use generic TIF bits for common thread flags Jinjie Ruan
2026-03-20 10:42 ` [PATCH v14 1/4] s390: Rename TIF_SINGLE_STEP to TIF_SINGLESTEP Jinjie Ruan
2026-03-20 10:42 ` [PATCH v14 2/4] asm-generic: Move TIF_SINGLESTEP to generic TIF bits Jinjie Ruan
2026-04-09 7:42 ` Mark Rutland
2026-04-10 3:39 ` Jinjie Ruan
2026-03-20 10:42 ` [PATCH v14 3/4] arm64: Use generic TIF bits for common thread flags Jinjie Ruan
2026-04-01 10:55 ` Catalin Marinas
2026-04-02 1:41 ` Jinjie Ruan
2026-03-20 10:42 ` Jinjie Ruan [this message]
2026-03-20 13:40 ` [PATCH v14 4/4] selftests: sud_test: Support aarch64 Linus Walleij
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