All of lore.kernel.org
 help / color / mirror / Atom feed
From: Alan Cox <gnomes@lxorguk.ukuu.org.uk>
To: Avi Kivity <avi@scylladb.com>
Cc: "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: Proposal: CAP_PAYLOAD to reduce Meltdown and Spectre mitigation costs
Date: Sat, 6 Jan 2018 20:02:32 +0000	[thread overview]
Message-ID: <20180106200232.67387c5a@alans-desktop> (raw)
In-Reply-To: <a5398c4e-be02-0de6-5c76-c37320011eef@scylladb.com>

> I propose to create a new capability, CAP_PAYLOAD, that allows the 
> system administrator to designate an application as the main workload in 
> that system. Other processes (like sshd or monitoring daemons) exist to 
> support it, and so it makes sense to protect the rest of the system from 
> their being compromised.

Much more general would be to do this with cgroups both for group-group
trust and group-kernel trust levels.

Alan

  reply	other threads:[~2018-01-06 20:02 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-01-06 19:33 Proposal: CAP_PAYLOAD to reduce Meltdown and Spectre mitigation costs Avi Kivity
2018-01-06 20:02 ` Alan Cox [this message]
2018-01-07  9:16   ` Avi Kivity
2018-01-07 12:29     ` Theodore Ts'o
2018-01-07 12:34       ` Ozgur
2018-01-07 12:51       ` Avi Kivity
2018-01-07 18:06         ` Theodore Ts'o
2018-01-06 20:24 ` Willy Tarreau
2018-01-07  9:14   ` Avi Kivity
2018-01-07 17:39     ` Willy Tarreau
2018-01-07 14:36   ` Alan Cox
2018-01-07 15:15     ` Avi Kivity
2018-01-07 17:26     ` Willy Tarreau
2018-01-08  1:33 ` Casey Schaufler
2018-01-08  1:33   ` Casey Schaufler
2018-01-18 22:49 ` Pavel Machek

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20180106200232.67387c5a@alans-desktop \
    --to=gnomes@lxorguk.ukuu.org.uk \
    --cc=avi@scylladb.com \
    --cc=linux-kernel@vger.kernel.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.