linux-kernel - Re: [PATCH v2] riscv: add support for SECCOMP and SECCOMP

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Date:   Wed, 28 Aug 2019 11:01:10 -0700
From:   Kees Cook <keescook@...omium.org>
To:     Andy Lutomirski <luto@...capital.net>
Cc:     David Abdurachmanov <david.abdurachmanov@...il.com>,
        Paul Walmsley <paul.walmsley@...ive.com>,
        Palmer Dabbelt <palmer@...ive.com>,
        Albert Ou <aou@...s.berkeley.edu>,
        Oleg Nesterov <oleg@...hat.com>,
        Will Drewry <wad@...omium.org>, Shuah Khan <shuah@...nel.org>,
        Alexei Starovoitov <ast@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>,
        Martin KaFai Lau <kafai@...com>,
        Song Liu <songliubraving@...com>, Yonghong Song <yhs@...com>,
        David Abdurachmanov <david.abdurachmanov@...ive.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Allison Randal <allison@...utok.net>,
        Alexios Zavras <alexios.zavras@...el.com>,
        Anup Patel <Anup.Patel@....com>,
        Vincent Chen <vincentc@...estech.com>,
        Alan Kao <alankao@...estech.com>,
        linux-riscv@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-kselftest@...r.kernel.org, netdev@...r.kernel.org,
        bpf@...r.kernel.org, me@...losedp.com
Subject: Re: [PATCH v2] riscv: add support for SECCOMP and SECCOMP_FILTER

On Wed, Aug 28, 2019 at 10:52:05AM -0700, Andy Lutomirski wrote:
> 
> 
> > On Aug 25, 2019, at 2:59 PM, Kees Cook <keescook@...omium.org> wrote:
> > 
> >> On Thu, Aug 22, 2019 at 01:55:22PM -0700, David Abdurachmanov wrote:
> >> This patch was extensively tested on Fedora/RISCV (applied by default on
> >> top of 5.2-rc7 kernel for <2 months). The patch was also tested with 5.3-rc
> >> on QEMU and SiFive Unleashed board.
> > 
> > Oops, I see the mention of QEMU here. Where's the best place to find
> > instructions on creating a qemu riscv image/environment?
> 
> I don’t suppose one of you riscv folks would like to contribute riscv support to virtme?  virtme-run —arch=riscv would be quite nice, and the total patch should be just a couple lines.  Unfortunately, it helps a lot to understand the subtleties of booting the architecture to write those couple lines :)

As it turns out, this is where I'm stuck. All the instructions I can
find are about booting a kernel off a disk image. :(

-- 
Kees Cook