linux-kernel - Re: [PATCH v2 2/4] x86/resctrl: Add sparse

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, 28 Sep 2023 13:47:30 -0700
From:   Reinette Chatre <reinette.chatre@...el.com>
To:     Maciej Wieczor-Retman <maciej.wieczor-retman@...el.com>,
        Fenghua Yu <fenghua.yu@...el.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        Dave Hansen <dave.hansen@...ux.intel.com>, <x86@...nel.org>,
        "H. Peter Anvin" <hpa@...or.com>
CC:     <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2 2/4] x86/resctrl: Add sparse_masks file in info

Hi Maciej,

On 9/22/2023 1:48 AM, Maciej Wieczor-Retman wrote:
> From: Fenghua Yu <fenghua.yu@...el.com>
> 
> Add the interface in resctrl FS to show if sparse cache allocations

Should this maybe be "cache allocation"?

> bit masks are supported on the platform. Reading the file returns
> either a "1" if non-contiguous 1s are supported and "0" otherwise.
> The file path is /sys/fs/resctrl/info/{resource}/sparse_masks, where
> {resource} can be either "L2" or "L3".
> 

Reinette