All of lore.kernel.org
 help / color / mirror / Atom feed
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
To: joeyli <jlee@suse.com>
Cc: Ard Biesheuvel <ardb@kernel.org>,
	linux-efi <linux-efi@vger.kernel.org>,
	Thomas Gleixner <tglx@linutronix.de>
Subject: Re: [PATCH 1/2] efi: Disable runtime services on RT
Date: Wed, 20 Oct 2021 08:28:50 +0200	[thread overview]
Message-ID: <20211020062850.3wvw7lqauh6pzfd2@linutronix.de> (raw)
In-Reply-To: <20211020060955.GC3965@linux-l9pv.suse>

On 2021-10-20 14:09:55 [+0800], joeyli wrote:
> On Tue, Sep 28, 2021 at 04:24:34PM +0200, Sebastian Andrzej Siewior wrote:
> > On 2021-09-28 15:34:47 [+0200], Ard Biesheuvel wrote:
> > > Are you sure you want to disable EFI runtime services on all x86
> > > systems with PREEMPT_RT as well?
> > 
> > The only problem that I am aware of is that you need to reboot with
> > enabled runtime service (via bootargs, #2) in order to alter boot loader
> > settings.
> 
> Just provide another case:
> Anyone who uses mokutil for enrolling MOK will also need reboot with
> efi=runtime first.

I have no idea what it does. This enrolling is only required once
per-lifetime and not on each system boot, right?

> Joey Lee

Sebastian

  reply	other threads:[~2021-10-20  6:28 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-09-24 13:49 [PATCH 0/2] efi: Disable runtime services on RT Sebastian Andrzej Siewior
2021-09-24 13:49 ` [PATCH 1/2] " Sebastian Andrzej Siewior
2021-09-28 13:30   ` Ard Biesheuvel
2021-09-28 13:33     ` Sebastian Andrzej Siewior
2021-09-28 13:34       ` Ard Biesheuvel
2021-09-28 14:24         ` Sebastian Andrzej Siewior
2021-10-20  6:09           ` joeyli
2021-10-20  6:28             ` Sebastian Andrzej Siewior [this message]
2021-10-20  6:47               ` joeyli
2021-10-20  7:20                 ` Sebastian Andrzej Siewior
2021-09-28 20:28         ` Thomas Gleixner
2021-09-28 20:41           ` Ard Biesheuvel
2021-09-24 13:49 ` [PATCH 2/2] efi: Allow efi=runtime Sebastian Andrzej Siewior

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=20211020062850.3wvw7lqauh6pzfd2@linutronix.de \
    --to=bigeasy@linutronix.de \
    --cc=ardb@kernel.org \
    --cc=jlee@suse.com \
    --cc=linux-efi@vger.kernel.org \
    --cc=tglx@linutronix.de \
    /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.