From: Yonghong Song <yhs@fb.com>
To: <bpf@vger.kernel.org>
Cc: Alexei Starovoitov <ast@kernel.org>,
Andrii Nakryiko <andrii@kernel.org>,
Daniel Borkmann <daniel@iogearbox.net>, <kernel-team@fb.com>
Subject: [RFC PATCH bpf-next 5/7] bpf: arm64: No support of struct value argument
Date: Tue, 26 Jul 2022 10:11:56 -0700 [thread overview]
Message-ID: <20220726171156.713564-1-yhs@fb.com> (raw)
In-Reply-To: <20220726171129.708371-1-yhs@fb.com>
ARM64 does not support struct value argument for trampoline based
bpf programs yet.
Signed-off-by: Yonghong Song <yhs@fb.com>
---
arch/arm64/net/bpf_jit_comp.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/arch/arm64/net/bpf_jit_comp.c b/arch/arm64/net/bpf_jit_comp.c
index 7ca8779ae34f..27bda6b755ae 100644
--- a/arch/arm64/net/bpf_jit_comp.c
+++ b/arch/arm64/net/bpf_jit_comp.c
@@ -1982,6 +1982,10 @@ int arch_prepare_bpf_trampoline(struct bpf_tramp_image *im, void *image,
if (nargs > 8)
return -ENOTSUPP;
+ /* don't support struct argument */
+ if (m->struct_arg_bsize[0])
+ return -ENOTSUPP;
+
ret = prepare_trampoline(&ctx, im, tlinks, orig_call, nargs, flags);
if (ret < 0)
return ret;
--
2.30.2
next prev parent reply other threads:[~2022-07-26 17:12 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-07-26 17:11 [RFC PATCH bpf-next 0/7] bpf: Support struct value argument for trampoline base progs Yonghong Song
2022-07-26 17:11 ` [RFC PATCH bpf-next 1/7] bpf: Always return corresponding btf_type in __get_type_size() Yonghong Song
2022-07-26 17:11 ` [RFC PATCH bpf-next 2/7] bpf: Add struct argument info in btf_func_model Yonghong Song
2022-08-09 0:02 ` Andrii Nakryiko
2022-08-09 17:38 ` Yonghong Song
2022-08-10 0:25 ` Andrii Nakryiko
2022-08-11 6:24 ` Yonghong Song
2022-07-26 17:11 ` [RFC PATCH bpf-next 3/7] bpf: x86: Rename stack_size to regs_off in {save,restore}_regs() Yonghong Song
2022-07-26 17:11 ` [RFC PATCH bpf-next 4/7] bpf: x86: Support in-register struct arguments Yonghong Song
2022-07-29 11:10 ` Jiri Olsa
2022-07-31 17:00 ` Yonghong Song
2022-07-26 17:11 ` Yonghong Song [this message]
2022-07-26 17:12 ` [RFC PATCH bpf-next 6/7] bpf: Populate struct value info in btf_func_model Yonghong Song
2022-07-26 17:12 ` [RFC PATCH bpf-next 7/7] selftests/bpf: Add struct value tests with fentry programs Yonghong Song
2022-07-28 15:46 ` [RFC PATCH bpf-next 0/7] bpf: Support struct value argument for trampoline base progs Kui-Feng Lee
2022-07-28 17:46 ` Yonghong Song
2022-07-28 19:57 ` Kui-Feng Lee
2022-07-28 23:30 ` Yonghong Song
2022-07-29 18:04 ` Kui-Feng Lee
2022-08-02 23:46 ` Yonghong Song
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