From: Andi Kleen <ak@linux.intel.com>
To: speck@linutronix.de
Subject: [MODERATED] Re: L!TF Bulletin #4: The state of the horrors
Date: Wed, 18 Jul 2018 12:36:37 -0700 [thread overview]
Message-ID: <20180718193637.GH25412@tassilo.jf.intel.com> (raw)
In-Reply-To: <alpine.DEB.2.21.1807131608360.2171@nanos.tec.linutronix.de>
> Thanks everyone involved for patches, testing, review and entertaining
> discussions!
Just looking through the patches again. Thanks for implementing
the dynamic control.
+3.2. EPT not supported or disabled
+""""""""""""""""""""""""""""""""""
+
+ If EPT is not supported by the processor or disabled in the hypervisor,
+ the system is fully protected. SMT can stay enabled and L1D flushing on
+ VMENTER is not required.
AFAIK we're still missing a patch to ensure that the shadow page tables
are actually inverted if needed, or did I miss it?
The code just copies the original currently I think, which means
the shadow is as attackable as the original.
Rest looks good to me.
-Andi
next prev parent reply other threads:[~2018-07-18 19:36 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-07-13 15:08 L!TF Bulletin #4: The state of the horrors Thomas Gleixner
2018-07-13 15:56 ` [MODERATED] " Konrad Rzeszutek Wilk
2018-07-14 12:57 ` Thomas Gleixner
2018-07-14 19:08 ` [MODERATED] " Greg KH
2018-07-15 7:32 ` Greg KH
2018-07-18 19:36 ` Andi Kleen [this message]
2018-07-18 19:45 ` Thomas Gleixner
2018-07-19 8:46 ` [MODERATED] Re: ***UNCHECKED*** " Alexander Graf
2018-07-23 16:10 ` [MODERATED] " David Woodhouse
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=20180718193637.GH25412@tassilo.jf.intel.com \
--to=ak@linux.intel.com \
--cc=speck@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.