Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18;
Content-Type: text/plain; charset="utf-8"
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Subject: Re: [PATCH bpf-next,v3] riscv, bpf: Add BPF exception tables
From:   patchwork-bot+netdevbpf@kernel.org
Message-Id: <163537620786.14362.5033693418821355895.git-patchwork-notify@kernel.org>
Date:   Wed, 27 Oct 2021 23:10:07 +0000
References: <20211027111822.3801679-1-tongtiangen@huawei.com>
In-Reply-To: <20211027111822.3801679-1-tongtiangen@huawei.com>
To:     tongtiangen <tongtiangen@huawei.com>
Cc:     paul.walmsley@sifive.com, palmer@dabbelt.com,
        palmerdabbelt@google.com, aou@eecs.berkeley.edu, bjorn@kernel.org,
        luke.r.nels@gmail.com, xi.wang@gmail.com, ast@kernel.org,
        daniel@iogearbox.net, andrii@kernel.org, kafai@fb.com,
        songliubraving@fb.com, yhs@fb.com, john.fastabend@gmail.com,
        kpsingh@kernel.org, linux-riscv@lists.infradead.org,
        linux-kernel@vger.kernel.org, netdev@vger.kernel.org,
        bpf@vger.kernel.org
Precedence: bulk

Hello:

This patch was applied to bpf/bpf-next.git (master)
by Daniel Borkmann <daniel@iogearbox.net>:

On Wed, 27 Oct 2021 11:18:22 +0000 you wrote:
> When a tracing BPF program attempts to read memory without using the
> bpf_probe_read() helper, the verifier marks the load instruction with
> the BPF_PROBE_MEM flag. Since the riscv JIT does not currently recognize
> this flag it falls back to the interpreter.
> 
> Add support for BPF_PROBE_MEM, by appending an exception table to the
> BPF program. If the load instruction causes a data abort, the fixup
> infrastructure finds the exception table and fixes up the fault, by
> clearing the destination register and jumping over the faulting
> instruction.
> 
> [...]

Here is the summary with links:
  - [bpf-next,v3] riscv, bpf: Add BPF exception tables
    https://git.kernel.org/bpf/bpf-next/c/252c765bd764

You are awesome, thank you!
-- 
Deet-doot-dot, I am a bot.
https://korg.docs.kernel.org/patchwork/pwbot.html