From: Feng Jiang <jiangfeng@kylinos.cn>
To: "Alexei Starovoitov" <ast@kernel.org>,
"Daniel Borkmann" <daniel@iogearbox.net>,
"Andrii Nakryiko" <andrii@kernel.org>,
"Eduard Zingerman" <eddyz87@gmail.com>,
"Kumar Kartikeya Dwivedi" <memxor@gmail.com>,
"Martin KaFai Lau" <martin.lau@linux.dev>,
"Song Liu" <song@kernel.org>,
"Yonghong Song" <yonghong.song@linux.dev>,
"Jiri Olsa" <jolsa@kernel.org>,
"Emil Tsalapatis" <emil@etsalapatis.com>,
"Ihor Solodrai" <ihor.solodrai@linux.dev>,
"Luke Nelson" <luke.r.nels@gmail.com>,
"Xi Wang" <xi.wang@gmail.com>, "Björn Töpel" <bjorn@kernel.org>,
"Pu Lehui" <pulehui@huawei.com>,
"Puranjay Mohan" <puranjay@kernel.org>,
"Paul Walmsley" <pjw@kernel.org>,
"Palmer Dabbelt" <palmer@dabbelt.com>,
"Albert Ou" <aou@eecs.berkeley.edu>,
"Alexandre Ghiti" <alex@ghiti.fr>,
"Shuah Khan" <shuah@kernel.org>,
"Nathan Chancellor" <nathan@kernel.org>,
"Nick Desaulniers" <ndesaulniers@google.com>,
"Bill Wendling" <morbo@google.com>,
"Justin Stitt" <justinstitt@google.com>
Cc: bpf@vger.kernel.org, linux-riscv@lists.infradead.org,
linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org,
llvm@lists.linux.dev, Feng Jiang <jiangfeng@kylinos.cn>
Subject: [PATCH bpf-next v2 2/2] selftests/bpf: Enable stack argument tests for RV64
Date: Thu, 13 Aug 2026 07:18:43 +0000 [thread overview]
Message-ID: <20260813-bpf-riscv-stack-args-v2-2-efea8f9b3fe1@kylinos.cn> (raw)
In-Reply-To: <20260813-bpf-riscv-stack-args-v2-0-efea8f9b3fe1@kylinos.cn>
Enable the stack argument selftests for RV64. The riscv guard is
restricted to __riscv_xlen == 64 since stack arguments are only
supported by the RV64 JIT.
Keep the __BPF_FEATURE_STACK_ARGUMENT gate, defined by clang with
BPF stack argument support [1].
[1] https://github.com/llvm/llvm-project/pull/189060
Signed-off-by: Feng Jiang <jiangfeng@kylinos.cn>
---
tools/testing/selftests/bpf/progs/btf__stack_arg_precision.c | 3 ++-
tools/testing/selftests/bpf/progs/btf__verifier_stack_arg_order.c | 3 ++-
tools/testing/selftests/bpf/progs/exceptions.c | 5 +++--
tools/testing/selftests/bpf/progs/stack_arg.c | 3 ++-
tools/testing/selftests/bpf/progs/stack_arg_kfunc.c | 3 ++-
tools/testing/selftests/bpf/progs/stack_arg_precision.c | 3 ++-
tools/testing/selftests/bpf/progs/verifier_stack_arg.c | 3 ++-
tools/testing/selftests/bpf/progs/verifier_stack_arg_order.c | 3 ++-
8 files changed, 17 insertions(+), 9 deletions(-)
diff --git a/tools/testing/selftests/bpf/progs/btf__stack_arg_precision.c b/tools/testing/selftests/bpf/progs/btf__stack_arg_precision.c
index 8d38aafe66a2..ab12397a9b52 100644
--- a/tools/testing/selftests/bpf/progs/btf__stack_arg_precision.c
+++ b/tools/testing/selftests/bpf/progs/btf__stack_arg_precision.c
@@ -4,7 +4,8 @@
#include <bpf/bpf_helpers.h>
#include "../test_kmods/bpf_testmod_kfunc.h"
-#if (defined(__TARGET_ARCH_x86) || defined(__TARGET_ARCH_arm64)) && \
+#if (defined(__TARGET_ARCH_x86) || defined(__TARGET_ARCH_arm64) || \
+ (defined(__TARGET_ARCH_riscv) && __riscv_xlen == 64)) && \
defined(__BPF_FEATURE_STACK_ARGUMENT)
long subprog_call_mem_kfunc(long a, long b, long c, long d, long e, long size)
diff --git a/tools/testing/selftests/bpf/progs/btf__verifier_stack_arg_order.c b/tools/testing/selftests/bpf/progs/btf__verifier_stack_arg_order.c
index 99bc115f8380..a980a3a399d3 100644
--- a/tools/testing/selftests/bpf/progs/btf__verifier_stack_arg_order.c
+++ b/tools/testing/selftests/bpf/progs/btf__verifier_stack_arg_order.c
@@ -3,7 +3,8 @@
#include <vmlinux.h>
#include <bpf/bpf_helpers.h>
-#if (defined(__TARGET_ARCH_x86) || defined(__TARGET_ARCH_arm64)) && \
+#if (defined(__TARGET_ARCH_x86) || defined(__TARGET_ARCH_arm64) || \
+ (defined(__TARGET_ARCH_riscv) && __riscv_xlen == 64)) && \
defined(__BPF_FEATURE_STACK_ARGUMENT)
int subprog_bad_order_6args(int a, int b, int c, int d, int e, int f)
diff --git a/tools/testing/selftests/bpf/progs/exceptions.c b/tools/testing/selftests/bpf/progs/exceptions.c
index c8d716fbd419..bae20f0f247e 100644
--- a/tools/testing/selftests/bpf/progs/exceptions.c
+++ b/tools/testing/selftests/bpf/progs/exceptions.c
@@ -379,8 +379,9 @@ int exception_bad_assert_range_with(struct __sk_buff *ctx)
return 1;
}
-#if (defined(__TARGET_ARCH_x86) || defined(__TARGET_ARCH_arm64)) \
- && defined(__BPF_FEATURE_STACK_ARGUMENT)
+#if (defined(__TARGET_ARCH_x86) || defined(__TARGET_ARCH_arm64) || \
+ (defined(__TARGET_ARCH_riscv) && __riscv_xlen == 64)) && \
+ defined(__BPF_FEATURE_STACK_ARGUMENT)
const volatile bool has_stack_arg = true;
diff --git a/tools/testing/selftests/bpf/progs/stack_arg.c b/tools/testing/selftests/bpf/progs/stack_arg.c
index 944e3bb603e7..3e9ed37c57bb 100644
--- a/tools/testing/selftests/bpf/progs/stack_arg.c
+++ b/tools/testing/selftests/bpf/progs/stack_arg.c
@@ -21,7 +21,8 @@ struct {
int timer_result;
-#if (defined(__TARGET_ARCH_x86) || defined(__TARGET_ARCH_arm64)) && \
+#if (defined(__TARGET_ARCH_x86) || defined(__TARGET_ARCH_arm64) || \
+ (defined(__TARGET_ARCH_riscv) && __riscv_xlen == 64)) && \
defined(__BPF_FEATURE_STACK_ARGUMENT)
const volatile bool has_stack_arg = true;
diff --git a/tools/testing/selftests/bpf/progs/stack_arg_kfunc.c b/tools/testing/selftests/bpf/progs/stack_arg_kfunc.c
index 345f2da2e361..b6b1a8aa7f44 100644
--- a/tools/testing/selftests/bpf/progs/stack_arg_kfunc.c
+++ b/tools/testing/selftests/bpf/progs/stack_arg_kfunc.c
@@ -6,7 +6,8 @@
#include "bpf_kfuncs.h"
#include "../test_kmods/bpf_testmod_kfunc.h"
-#if (defined(__TARGET_ARCH_x86) || defined(__TARGET_ARCH_arm64)) && \
+#if (defined(__TARGET_ARCH_x86) || defined(__TARGET_ARCH_arm64) || \
+ (defined(__TARGET_ARCH_riscv) && __riscv_xlen == 64)) && \
defined(__BPF_FEATURE_STACK_ARGUMENT)
const volatile bool has_stack_arg = true;
diff --git a/tools/testing/selftests/bpf/progs/stack_arg_precision.c b/tools/testing/selftests/bpf/progs/stack_arg_precision.c
index bee2eeec021d..6eebafe7f2f8 100644
--- a/tools/testing/selftests/bpf/progs/stack_arg_precision.c
+++ b/tools/testing/selftests/bpf/progs/stack_arg_precision.c
@@ -6,7 +6,8 @@
#include "../test_kmods/bpf_testmod_kfunc.h"
#include "bpf_misc.h"
-#if (defined(__TARGET_ARCH_x86) || defined(__TARGET_ARCH_arm64)) && \
+#if (defined(__TARGET_ARCH_x86) || defined(__TARGET_ARCH_arm64) || \
+ (defined(__TARGET_ARCH_riscv) && __riscv_xlen == 64)) && \
defined(__BPF_FEATURE_STACK_ARGUMENT)
/* Force kfunc extern BTF generation for inline asm call below.
diff --git a/tools/testing/selftests/bpf/progs/verifier_stack_arg.c b/tools/testing/selftests/bpf/progs/verifier_stack_arg.c
index 7e0ce5db28a0..e8cd296fe763 100644
--- a/tools/testing/selftests/bpf/progs/verifier_stack_arg.c
+++ b/tools/testing/selftests/bpf/progs/verifier_stack_arg.c
@@ -12,7 +12,8 @@ struct {
__type(value, long long);
} map_hash_8b SEC(".maps");
-#if (defined(__TARGET_ARCH_x86) || defined(__TARGET_ARCH_arm64)) && \
+#if (defined(__TARGET_ARCH_x86) || defined(__TARGET_ARCH_arm64) || \
+ (defined(__TARGET_ARCH_riscv) && __riscv_xlen == 64)) && \
defined(__BPF_FEATURE_STACK_ARGUMENT)
__noinline __used
diff --git a/tools/testing/selftests/bpf/progs/verifier_stack_arg_order.c b/tools/testing/selftests/bpf/progs/verifier_stack_arg_order.c
index c9fe4857da3f..562e8319ffc2 100644
--- a/tools/testing/selftests/bpf/progs/verifier_stack_arg_order.c
+++ b/tools/testing/selftests/bpf/progs/verifier_stack_arg_order.c
@@ -5,7 +5,8 @@
#include <bpf/bpf_helpers.h>
#include "bpf_misc.h"
-#if (defined(__TARGET_ARCH_x86) || defined(__TARGET_ARCH_arm64)) && \
+#if (defined(__TARGET_ARCH_x86) || defined(__TARGET_ARCH_arm64) || \
+ (defined(__TARGET_ARCH_riscv) && __riscv_xlen == 64)) && \
defined(__BPF_FEATURE_STACK_ARGUMENT)
__noinline __used __naked
--
2.53.0
next prev parent reply other threads:[~2026-08-13 7:19 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-08-13 7:18 [PATCH bpf-next v2 0/2] bpf, riscv: Add BPF stack arguments support for RV64 JIT Feng Jiang
2026-08-13 7:18 ` [PATCH bpf-next v2 1/2] " Feng Jiang
2026-08-13 8:25 ` bot+bpf-ci
2026-08-13 11:35 ` Feng Jiang
2026-08-13 7:18 ` Feng Jiang [this message]
2026-08-13 8:11 ` [PATCH bpf-next v2 2/2] selftests/bpf: Enable stack argument tests for RV64 bot+bpf-ci
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