linux-kernel - Re: [PATCH v4 11/15] configfs-tsm: Allow the privlevel

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: Fri, 26 Apr 2024 13:51:45 -0700
From: Dan Williams <dan.j.williams@...el.com>
To: Tom Lendacky <thomas.lendacky@....com>, <linux-kernel@...r.kernel.org>,
	<x86@...nel.org>, <linux-coco@...ts.linux.dev>, <svsm-devel@...onut-svsm.dev>
CC: Thomas Gleixner <tglx@...utronix.de>, Ingo Molnar <mingo@...hat.com>,
	Borislav Petkov <bp@...en8.de>, Dave Hansen <dave.hansen@...ux.intel.com>,
	"H. Peter Anvin" <hpa@...or.com>, Andy Lutomirski <luto@...nel.org>, "Peter
 Zijlstra" <peterz@...radead.org>, Dan Williams <dan.j.williams@...el.com>,
	Michael Roth <michael.roth@....com>, Ashish Kalra <ashish.kalra@....com>
Subject: Re: [PATCH v4 11/15] configfs-tsm: Allow the privlevel_floor
 attribute to be updated

Tom Lendacky wrote:
> With the introduction of an SVSM, Linux will be running at a non-zero
> VMPL. Any request for an attestation report at a higher privilege VMPL
> than what Linux is currently running will result in an error. Allow for
> the privlevel_floor attribute to be updated dynamically so that the
> attribute may be set dynamically. Set the privlevel_floor attribute to
> be the value of the vmpck_id being used.
> 
> Signed-off-by: Tom Lendacky <thomas.lendacky@....com>

This addresses my comment on the last version.

Acked-by: Dan Williams <dan.j.williams@...el.com>