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From: KP Singh <kpsingh@kernel.org>
To: Gilad Reti <gilad.reti@gmail.com>
Cc: bpf <bpf@vger.kernel.org>, Yonghong Song <yhs@fb.com>,
	Alexei Starovoitov <ast@kernel.org>,
	Daniel Borkmann <daniel@iogearbox.net>,
	Andrii Nakryiko <andrii@kernel.org>,
	Martin KaFai Lau <kafai@fb.com>, Song Liu <songliubraving@fb.com>,
	John Fastabend <john.fastabend@gmail.com>,
	Shuah Khan <shuah@kernel.org>,
	Networking <netdev@vger.kernel.org>,
	open list <linux-kernel@vger.kernel.org>,
	linux-kselftest@vger.kernel.org
Subject: Re: [PATCH bpf v2 1/2] bpf: support PTR_TO_MEM{,_OR_NULL} register spilling
Date: Wed, 13 Jan 2021 23:29:16 +0100
Message-ID: <CACYkzJ5o7QBR1stFTqxGJv2gbS0qsVKZW6BJ3iBUagy5_S+N0w@mail.gmail.com> (raw)
In-Reply-To: <20210113053810.13518-1-gilad.reti@gmail.com>

On Wed, Jan 13, 2021 at 6:38 AM Gilad Reti <gilad.reti@gmail.com> wrote:
>
> Add support for pointer to mem register spilling, to allow the verifier
> to track pointers to valid memory addresses. Such pointers are returned
> for example by a successful call of the bpf_ringbuf_reserve helper.
>
> The patch was partially contributed by CyberArk Software, Inc.
>
> Fixes: 457f44363a88 ("bpf: Implement BPF ring buffer and verifier support for it")
> Suggested-by: Yonghong Song <yhs@fb.com>
> Signed-off-by: Gilad Reti <gilad.reti@gmail.com>

Acked-by: KP Singh <kpsingh@kernel.org>

  parent reply index

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-01-13  5:38 Gilad Reti
2021-01-13  5:38 ` [PATCH bpf v2 2/2] selftests/bpf: add verifier test for PTR_TO_MEM spill Gilad Reti
2021-01-13 16:05   ` Yonghong Song
2021-01-13 22:28     ` KP Singh
2021-01-13 22:29 ` KP Singh [this message]
2021-01-14  4:02   ` [PATCH bpf v2 1/2] bpf: support PTR_TO_MEM{,_OR_NULL} register spilling Alexei Starovoitov

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