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From: Andrii Nakryiko <andrii.nakryiko@gmail.com>
To: Gabriele <phoenix1987@gmail.com>
Cc: bpf <bpf@vger.kernel.org>
Subject: Re: Read process VM from kernel
Date: Mon, 13 Sep 2021 20:47:33 -0700	[thread overview]
Message-ID: <CAEf4BzZokm=_5vdf3sCccTf2Enf0-kwij7dusykcgtWPkM=95g@mail.gmail.com> (raw)
In-Reply-To: <CAGnuNNuenDT4Y_UHsny6BK_b1+g2joePAdapdn7aLCi99Rh3bg@mail.gmail.com>

On Sat, Sep 11, 2021 at 2:05 AM Gabriele <phoenix1987@gmail.com> wrote:
>
> Hi there
>
> I recently started playing around with libbpf and I was wondering if
> it is possible to read a process' VM from the kernel side. In
> user-space one could use process_vm_read, but I haven't been able to
> find an equivalent BPF API for that.

Currently only current process's memory (in which BPF program is
running) can be read with bpf_probe_read_user(). I don't think there
is anything that allows reading some other process' data like
process_vm_read allows.

>
> Cheers,
> Gab

  reply	other threads:[~2021-09-14  3:47 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-09-11  9:02 Read process VM from kernel Gabriele
2021-09-14  3:47 ` Andrii Nakryiko [this message]
2021-09-14  4:24   ` Alexei Starovoitov
2022-01-05 23:52     ` Gabriele

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