linux-kernel - Re: [PATCH v9 23/26] x86/resctrl: Configure mbm_cntr

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: <af70578b-e682-4e7d-8373-61f61fafdc0c@intel.com>
Date: Mon, 18 Nov 2024 11:23:18 -0800
From: Reinette Chatre <reinette.chatre@...el.com>
To: Babu Moger <babu.moger@....com>, <corbet@....net>, <tglx@...utronix.de>,
	<mingo@...hat.com>, <bp@...en8.de>, <dave.hansen@...ux.intel.com>
CC: <fenghua.yu@...el.com>, <x86@...nel.org>, <hpa@...or.com>,
	<thuth@...hat.com>, <paulmck@...nel.org>, <rostedt@...dmis.org>,
	<akpm@...ux-foundation.org>, <xiongwei.song@...driver.com>,
	<pawan.kumar.gupta@...ux.intel.com>, <daniel.sneddon@...ux.intel.com>,
	<perry.yuan@....com>, <sandipan.das@....com>, <kai.huang@...el.com>,
	<xiaoyao.li@...el.com>, <seanjc@...gle.com>, <jithu.joseph@...el.com>,
	<brijesh.singh@....com>, <xin3.li@...el.com>, <ebiggers@...gle.com>,
	<andrew.cooper3@...rix.com>, <mario.limonciello@....com>,
	<james.morse@....com>, <tan.shaopeng@...itsu.com>, <tony.luck@...el.com>,
	<vikas.shivappa@...ux.intel.com>, <linux-doc@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>, <peternewman@...gle.com>,
	<maciej.wieczor-retman@...el.com>, <eranian@...gle.com>,
	<jpoimboe@...nel.org>, <thomas.lendacky@....com>
Subject: Re: [PATCH v9 23/26] x86/resctrl: Configure mbm_cntr_assign mode if
 supported

Hi Babu,

On 10/29/24 4:21 PM, Babu Moger wrote:
> Configure mbm_cntr_assign on AMD. 'mbm_cntr_assign' mode in AMD is ABMC
> (Assignable Bandwidth Monitoring Counters). It is enabled by default when
> supported on the system.
> 
> When the ABMC is updated, it must be updated on all the logical processors
> in the resctrl domain.

This needs imperative tone.

Reinette