From: Shubham Bansal <illusionist.neo@gmail.com>
To: Daniel Borkmann <daniel@iogearbox.net>
Cc: Kees Cook <keescook@chromium.org>,
Network Development <netdev@vger.kernel.org>,
"David S. Miller" <davem@davemloft.net>,
Alexei Starovoitov <ast@kernel.org>,
Russell King <linux@armlinux.org.uk>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>,
LKML <linux-kernel@vger.kernel.org>, Andrew Lunn <andrew@lunn.ch>
Subject: Re: [PATCH v2] arm: eBPF JIT compiler
Date: Tue, 20 Jun 2017 07:04:54 +0530 [thread overview]
Message-ID: <CAHgaXdLtX6yLdU3bMvS=g8FZ79sM_BW_+hHTMH=Mfk4TZqUnpw@mail.gmail.com> (raw)
In-Reply-To: <594813AA.5010001@iogearbox.net>
Hi Daniel,
>
> Sorry, had a travel over the weekend, so didn't read it in time.
>
> What is the issue with imitating in JIT what the interpreter is
> doing as a starting point? That should be generic enough to handle
> any case.
>
> Otherwise you'd need some sort of reverse mapping since verifier
> already converted BPF_CALL insns into relative helper addresses
> in imm part.
>
Sorry but I don't get what you are trying to say. Can you explain it
with an example?
-Shubham
WARNING: multiple messages have this Message-ID (diff)
From: illusionist.neo@gmail.com (Shubham Bansal)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2] arm: eBPF JIT compiler
Date: Tue, 20 Jun 2017 07:04:54 +0530 [thread overview]
Message-ID: <CAHgaXdLtX6yLdU3bMvS=g8FZ79sM_BW_+hHTMH=Mfk4TZqUnpw@mail.gmail.com> (raw)
In-Reply-To: <594813AA.5010001@iogearbox.net>
Hi Daniel,
>
> Sorry, had a travel over the weekend, so didn't read it in time.
>
> What is the issue with imitating in JIT what the interpreter is
> doing as a starting point? That should be generic enough to handle
> any case.
>
> Otherwise you'd need some sort of reverse mapping since verifier
> already converted BPF_CALL insns into relative helper addresses
> in imm part.
>
Sorry but I don't get what you are trying to say. Can you explain it
with an example?
-Shubham
next prev parent reply other threads:[~2017-06-20 1:34 UTC|newest]
Thread overview: 87+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-05-25 23:13 [PATCH v2] arm: eBPF JIT compiler Shubham Bansal
2017-05-25 23:13 ` Shubham Bansal
2017-05-25 23:23 ` Andrew Lunn
2017-05-25 23:23 ` Andrew Lunn
2017-05-25 23:34 ` Shubham Bansal
2017-05-25 23:34 ` Shubham Bansal
2017-05-25 23:36 ` Shubham Bansal
2017-05-25 23:36 ` Shubham Bansal
2017-05-26 16:57 ` Shubham Bansal
2017-05-26 16:57 ` Shubham Bansal
2017-05-30 18:50 ` Shubham Bansal
2017-05-30 18:50 ` Shubham Bansal
2017-05-30 19:11 ` Kees Cook
2017-05-30 19:11 ` Kees Cook
2017-05-30 19:19 ` Kees Cook
2017-05-30 19:19 ` Kees Cook
2017-06-06 19:47 ` Shubham Bansal
2017-06-06 19:47 ` Shubham Bansal
2017-06-12 2:00 ` Kees Cook
2017-06-12 2:00 ` Kees Cook
2017-06-12 2:00 ` Kees Cook
2017-06-12 10:21 ` Daniel Borkmann
2017-06-12 10:21 ` Daniel Borkmann
2017-06-12 10:21 ` Daniel Borkmann
2017-06-12 11:06 ` Russell King - ARM Linux
2017-06-12 11:06 ` Russell King - ARM Linux
2017-06-12 11:06 ` Russell King - ARM Linux
2017-06-12 15:41 ` Shubham Bansal
2017-06-12 15:41 ` Shubham Bansal
2017-06-12 15:41 ` Shubham Bansal
2017-06-12 15:40 ` Shubham Bansal
2017-06-12 15:40 ` Shubham Bansal
2017-06-12 15:40 ` Shubham Bansal
2017-06-12 22:45 ` Alexander Alemayhu
2017-06-12 22:45 ` Alexander Alemayhu
2017-06-12 22:45 ` Alexander Alemayhu
2017-06-12 22:47 ` David Miller
2017-06-12 22:47 ` David Miller
2017-06-12 23:17 ` Daniel Borkmann
2017-06-12 23:17 ` Daniel Borkmann
2017-06-12 23:17 ` Daniel Borkmann
2017-06-13 6:56 ` Shubham Bansal
2017-06-13 6:56 ` Shubham Bansal
2017-06-13 6:56 ` Shubham Bansal
2017-06-14 20:31 ` Daniel Borkmann
2017-06-14 20:31 ` Daniel Borkmann
2017-06-14 20:31 ` Daniel Borkmann
2017-06-17 12:23 ` Shubham Bansal
2017-06-17 12:23 ` Shubham Bansal
2017-06-17 12:23 ` Shubham Bansal
2017-06-19 18:10 ` Daniel Borkmann
2017-06-19 18:10 ` Daniel Borkmann
2017-06-19 18:10 ` Daniel Borkmann
2017-06-20 1:34 ` Shubham Bansal [this message]
2017-06-20 1:34 ` Shubham Bansal
2017-06-20 1:34 ` Shubham Bansal
2017-06-20 16:55 ` Daniel Borkmann
2017-06-20 16:55 ` Daniel Borkmann
2017-06-20 16:55 ` Daniel Borkmann
2017-06-21 14:26 ` Shubham Bansal
2017-06-21 14:26 ` Shubham Bansal
2017-06-21 14:26 ` Shubham Bansal
2017-06-21 16:32 ` Daniel Borkmann
2017-06-21 16:32 ` Daniel Borkmann
2017-06-21 16:32 ` Daniel Borkmann
2017-06-21 19:37 ` Shubham Bansal
2017-06-21 19:37 ` Shubham Bansal
2017-06-21 19:37 ` Shubham Bansal
2017-06-21 19:53 ` Daniel Borkmann
2017-06-21 19:53 ` Daniel Borkmann
2017-06-21 19:53 ` Daniel Borkmann
2017-06-23 22:39 ` Shubham Bansal
2017-06-23 22:39 ` Shubham Bansal
2017-07-05 22:11 ` Kees Cook
2017-07-05 22:11 ` Kees Cook
2017-07-05 22:11 ` Kees Cook
2017-07-05 22:38 ` Kees Cook
2017-07-05 22:38 ` Kees Cook
2017-07-05 22:38 ` Kees Cook
2017-07-06 3:49 ` Shubham Bansal
2017-07-06 3:49 ` Shubham Bansal
2017-07-07 4:42 ` Kees Cook
2017-07-07 4:42 ` Kees Cook
2017-07-07 4:42 ` Kees Cook
2017-07-07 4:49 ` Shubham Bansal
2017-07-07 4:49 ` Shubham Bansal
2017-07-07 4:49 ` Shubham Bansal
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