netdev - [PATCH net-next v2 0/4] arm64 BPF JIT updates

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Date:	Mon,  6 Jun 2016 22:22:55 -0700
From:	Zi Shen Lim <zlim.lnx@...il.com>
To:	"David S. Miller" <davem@...emloft.net>,
	Catalin Marinas <catalin.marinas@....com>,
	Will Deacon <will.deacon@....com>
Cc:	Zi Shen Lim <zlim.lnx@...il.com>, Yang Shi <yang.shi@...aro.org>,
	Alexei Starovoitov <ast@...nel.org>,
	Daniel Borkmann <daniel@...earbox.net>, netdev@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [PATCH net-next v2 0/4] arm64 BPF JIT updates

Updates for arm64 eBPF JIT.
The main addition here is implementation of bpf_tail_call.

#1: Fix missing header inclusion in linux/bpf.h.
#2: Add bpf_tail_call for arm64.
#3,4: Optimizations to reduce instruction count for jitted code.

Changes since v1:
 - Added patch #1 to address build error due to missing header inclusion
   in linux/bpf.h. (Thanks to suggestion and ack by Daniel Borkmann)
   Ordered it ahead of bpf_tail_call patch #2 so build error is not
   triggered.

Zi Shen Lim (4):
  bpf: fix missing header inclusion
  arm64: bpf: implement bpf_tail_call() helper
  arm64: bpf: optimize JMP_CALL
  arm64: bpf: optimize LD_ABS, LD_IND

 arch/arm64/net/bpf_jit.h      |   3 +-
 arch/arm64/net/bpf_jit_comp.c | 111 ++++++++++++++++++++++++++++++++++++------
 include/linux/bpf.h           |   1 +
 3 files changed, 99 insertions(+), 16 deletions(-)

-- 
1.9.1