From: Andi Kleen <ak@linux.intel.com>
To: Pavel Machek <pavel@ucw.cz>
Cc: vbabka@suse.cz, mhocko@suse.com, hpa@zytor.com,
torvalds@linux-foundation.org, dave.hansen@intel.com,
kernel list <linux-kernel@vger.kernel.org>,
tglx@linutronix.de, mingo@redhat.com, bp@alien8.de
Subject: Re: l1tf: Kernel suggests I throw away third of my memory. I'd rather not
Date: Wed, 17 Oct 2018 07:08:46 -0700 [thread overview]
Message-ID: <20181017140846.GB23838@tassilo.jf.intel.com> (raw)
In-Reply-To: <20181017105610.GA4260@amd>
On Wed, Oct 17, 2018 at 12:56:10PM +0200, Pavel Machek wrote:
> Hi!
>
> 6a012288 suggests I throw away 1GB on RAM. On 3GB system.. that is not
> going to be pleasant.
Just rebuild your kernel with PAE? I assume your CPU supports it.
This will also give you NX, which if you're really worried
about security is far more important than L1TF.
If you don't worry about security just ignore.
-Andi
next prev parent reply other threads:[~2018-10-17 14:08 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-10-17 10:56 l1tf: Kernel suggests I throw away third of my memory. I'd rather not Pavel Machek
2018-10-17 11:15 ` Michal Hocko
2018-10-17 11:32 ` Pavel Machek
2018-10-17 12:17 ` Michal Hocko
2018-10-17 22:21 ` Dave Hansen
2018-10-18 7:10 ` Vlastimil Babka
2018-10-17 14:08 ` Andi Kleen [this message]
2018-10-17 14:13 ` Vlastimil Babka
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