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
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