linux-kernel - Re: [PATCH v4 0/5] x86: two-phase syscall tracing and seccomp fastpath

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

Date:	Thu, 31 Jul 2014 09:56:48 -0700
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Andy Lutomirski <luto@...capital.net>,
	Frederic Weisbecker <fweisbec@...il.com>
CC:	Oleg Nesterov <oleg@...hat.com>,
	linux-arch <linux-arch@...r.kernel.org>, X86 ML <x86@...nel.org>,
	LSM List <linux-security-module@...r.kernel.org>,
	Linux MIPS Mailing List <linux-mips@...ux-mips.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	Alexei Starovoitov <ast@...mgrid.com>,
	Will Drewry <wad@...omium.org>,
	Kees Cook <keescook@...omium.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v4 0/5] x86: two-phase syscall tracing and seccomp fastpath

On 07/30/2014 10:25 AM, Andy Lutomirski wrote:
> 
> And yet x86_64 has this code implemented in assembly even in the
> slowpath.  Go figure.
> 

There is way too much assembly in entry_64.S probably because things
have been grafted on, ahem, "organically".  It is darn nigh impossible
to even remotely figure out what goes on in that file.

	-hpa


--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/