linux-kernel - Re: [PATCH] ACPI: kernel-parameters.txt : Add intel_idle.max

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, 15 Dec 2011 17:47:28 +0100
From:	Thomas Renninger <trenn@...e.de>
To:	Masanari Iida <standby24x7@...il.com>
Cc:	linux-kernel@...r.kernel.org, linux-acpi@...r.kernel.org,
	rdunlap@...otime.net, lenb@...nel.org
Subject: Re: [PATCH] ACPI: kernel-parameters.txt : Add intel_idle.max_cstate

On Wednesday, December 14, 2011 05:18:52 PM Masanari Iida wrote:
> Add missing intel_idle.max_cstate in kernel-parameters.txt
I wonder whether this one should get documented at all.

Better would be to work towards a general cpuidle.max_state=
param which deprecates processor.max_cstate= (acpi_idle driver) and
intel_idle.max_cstate= and enables this functionality for all
other cpuidle drivers out there as well.

Something to turn off intel_idle driver and favor the acpi_idle
driver for debugging would still be needed then.

   Thomas

> 
> Signed-off-by Masanari Iida <standby24x7@...il.com>
> cc:Len Brown <lenb@...nel.org>
> cc:Randy Dunlap <rdunlap@...otime.net>
> ---
>  Documentation/kernel-parameters.txt |    5 +++++
>  1 files changed, 5 insertions(+), 0 deletions(-)
> 
> diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-
parameters.txt
> index 81c287f..c6a56d8 100644
> --- a/Documentation/kernel-parameters.txt
> +++ b/Documentation/kernel-parameters.txt
> @@ -1035,6 +1035,11 @@ bytes respectively. Such letter suffixes can also 
be entirely omitted.
>  			By default, super page will be supported if Intel IOMMU
>  			has the capability. With this option, super page will
>  			not be supported.
> +
> +	intel_idle.max_cstate=	[KNL,HW,ACPI,X86]
> +			0	disables intel_idle and fall back on acpi_idle.
> +			1 to 6	specify maximum depth of C-state.
> +
>  	intremap=	[X86-64, Intel-IOMMU]
>  			on	enable Interrupt Remapping (default)
>  			off	disable Interrupt Remapping
> -- 
> 1.7.6.4
> 
> --
> To unsubscribe from this list: send the line "unsubscribe linux-acpi" in
> the body of a message to majordomo@...r.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
> 

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/