linux-kernel - Re: [PATCH v4 1/2] RISC-V: clarify what some RISCV

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: <43f05f71-71f7-4073-ae3b-5f5fa35ad2b8@sifive.com>
Date: Sat, 2 Nov 2024 15:16:51 -0500
From: Samuel Holland <samuel.holland@...ive.com>
To: Conor Dooley <conor@...nel.org>, linux-riscv@...ts.infradead.org
Cc: Conor Dooley <conor.dooley@...rochip.com>, xiao.w.wang@...el.com,
 Andrew Jones <ajones@...tanamicro.com>, pulehui@...wei.com,
 Charlie Jenkins <charlie@...osinc.com>,
 Paul Walmsley <paul.walmsley@...ive.com>, Palmer Dabbelt
 <palmer@...belt.com>, linux-kernel@...r.kernel.org,
 Pu Lehui <pulehui@...weicloud.com>, Björn Töpel
 <bjorn@...nel.org>
Subject: Re: [PATCH v4 1/2] RISC-V: clarify what some RISCV_ISA* config
 options do

On 2024-10-24 5:19 AM, Conor Dooley wrote:
> From: Conor Dooley <conor.dooley@...rochip.com>
> 
> During some discussion on IRC yesterday and on Pu's bpf patch [1]
> I noticed that these RISCV_ISA* Kconfig options are not really clear
> about their implications. Many of these options have no impact on what
> userspace is allowed to do, for example an application can use Zbb
> regardless of whether or not the kernel does. Change the help text to
> try and clarify whether or not an option affects just the kernel, or
> also userspace. None of these options actually control whether or not an
> extension is detected dynamically as that's done regardless of Kconfig
> options, so drop any text that implies the option is required for
> dynamic detection, rewording them as "do x when y is detected".
> 
> Link: https://lore.kernel.org/linux-riscv/20240328-ferocity-repose-c554f75a676c@spud/ [1]
> Reviewed-by: Andrew Jones <ajones@...tanamicro.com>
> Signed-off-by: Conor Dooley <conor.dooley@...rochip.com>
> ---
>  arch/riscv/Kconfig | 36 +++++++++++++++++++-----------------
>  1 file changed, 19 insertions(+), 17 deletions(-)

Reviewed-by: Samuel Holland <samuel.holland@...ive.com>