linux-kernel - Re: [PATCH bpf-next 0/1] Support kCFI + BPF on riscv64

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Date: Wed, 06 Mar 2024 22:40:30 +0000
From: patchwork-bot+netdevbpf@...nel.org
To: Puranjay Mohan <puranjay12@...il.com>
Cc: paul.walmsley@...ive.com, palmer@...belt.com, aou@...s.berkeley.edu,
 ast@...nel.org, daniel@...earbox.net, andrii@...nel.org,
 martin.lau@...ux.dev, eddyz87@...il.com, song@...nel.org,
 yonghong.song@...ux.dev, john.fastabend@...il.com, kpsingh@...nel.org,
 sdf@...gle.com, haoluo@...gle.com, jolsa@...nel.org, luke.r.nels@...il.com,
 xi.wang@...il.com, bjorn@...nel.org, samitolvanen@...gle.com,
 peterz@...radead.org, keescook@...omium.org, linux-riscv@...ts.infradead.org,
 linux-kernel@...r.kernel.org, bpf@...r.kernel.org
Subject: Re: [PATCH bpf-next 0/1] Support kCFI + BPF on riscv64

Hello:

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

On Sun,  3 Mar 2024 17:02:06 +0000 you wrote:
> With CONFIG_CFI_CLANG, the compiler injects a type preamble immediately
> before each function and a check to validate the target function type
> before indirect calls:
> 
>   ; type preamble
>     .word <id>
>   function:
>     ...
>   ; indirect call check
>     lw      t1, -4(a0)
>     lui     t2, <hi20>
>     addiw   t2, t2, <lo12>
>     beq     t1, t2, .Ltmp0
>     ebreak
>   .Ltmp0:
>     jarl    a0
> 
> [...]

Here is the summary with links:
  - [bpf-next,1/1] riscv64/cfi,bpf: Support kCFI + BPF on riscv64
    https://git.kernel.org/bpf/bpf-next/c/dfd646d117b7

You are awesome, thank you!
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