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]
Message-ID: <87pne1azvt.fsf@nanos.tec.linutronix.de>
Date:   Wed, 26 Feb 2020 20:53:58 +0100
From:   Thomas Gleixner <tglx@...utronix.de>
To:     Andy Lutomirski <luto@...nel.org>,
        LKML <linux-kernel@...r.kernel.org>
Cc:     x86@...nel.org, Steven Rostedt <rostedt@...dmis.org>,
        Brian Gerst <brgerst@...il.com>,
        Juergen Gross <jgross@...e.com>,
        Paolo Bonzini <pbonzini@...hat.com>,
        Arnd Bergmann <arnd@...db.de>
Subject: Re: [patch 7/8] x86/entry: Move irq tracing to prepare_exit_to_user_mode()

Andy Lutomirski <luto@...nel.org> writes:

> On 2/25/20 2:08 PM, Thomas Gleixner wrote:
>> which again gets it out of the ASM code.
>
> Why is this better than just sticking the tracing in
> __prepare_exit_from_usermode() or just not splitting it in the first
> place?

The split is there because prepare_exit_from_usermode() is used from the
idtentry maze as well. Once that stuff is converted in the later series
the split goes away again.

Thanks,

        tglx

Powered by blists - more mailing lists

Powered by Openwall GNU/*/Linux Powered by OpenVZ