linux-kernel - Re: [RFC 0/1] mips: malta: Select PCI_QUIRKS if POWER_RESET_PIIX4

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] [day] [month] [year] [list]

Date:   Tue, 8 Aug 2023 16:55:50 +0100 (BST)
From:   "Maciej W. Rozycki" <macro@...am.me.uk>
To:     Zhangjin Wu <falcon@...ylab.org>
cc:     tanyuan@...ylab.org, linux-kernel@...r.kernel.org,
        linux-mips@...r.kernel.org, linux@...ssschuh.net,
        Thomas Bogendoerfer <tsbogend@...ha.franken.de>, w@....eu
Subject: Re: [RFC 0/1] mips: malta: Select PCI_QUIRKS if POWER_RESET_PIIX4_POWEROFF
 is enabled

On Sun, 6 Aug 2023, Zhangjin Wu wrote:

> To simplify the enablement of the poweroff support, selecting the required
> options for CONFIG_POWER_RESET=y may make many people happy especially when
> they are using a customized config (maybe tinyconfig based) for a target qemu
> board. Without normal poweroff support from the kernel side, qemu will simply
> hang there after a 'poweroff' command, which is a very bad experience for the
> automatical tests. Currently, based on tinyconfig, it is very hard to find the
> exact poweroff options, some architectures simply enable poweroff support by
> default, the others' poweroff options are hidden deeply, which make things very
> hard. 

 The settings are a bit buried indeed and I was hit by that myself at one 
point when upgrading the kernel using old .config, but honestly I think we 
want to let people strip the kernel from options they don't want or need, 
so I think it will best be sorted by presetting the useful options in the 
respective defconfigs and then maybe guard the more critical ones with `if 
EXPERT'.

  Maciej