From: Pavel Machek <pavel@ucw.cz>
To: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Cc: "Cedric Blancher" <cedric.blancher@gmail.com>,
platform-driver-x86@vger.kernel.org, x86@kernel.org,
"Linux Kernel Mailing List" <linux-kernel@vger.kernel.org>,
"Borislav Petkov" <bp@suse.de>,
"David S. Miller" <davem@davemloft.net>,
"Greg Kroah-Hartman" <gregkh@linuxfoundation.org>,
"Grzegorz Andrejczuk" <grzegorz.andrejczuk@intel.com>,
"Haim Cohen" <haim.cohen@intel.com>,
"Ingo Molnar" <mingo@kernel.org>,
"Janakarajan Natarajan" <Janakarajan.Natarajan@amd.com>,
"Jim Mattson" <jmattson@google.com>,
"Kan Liang" <Kan.liang@intel.com>,
"Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>,
"Kyle Huey" <me@kylehuey.com>, "Len Brown" <len.brown@intel.com>,
"open list:DOCUMENTATION" <linux-doc@vger.kernel.org>,
"open list:FILESYSTEMS (VFS and infrastructure)"
<linux-fsdevel@vger.kernel.org>,
"Mauro Carvalho Chehab" <mchehab@kernel.org>,
"Paolo Bonzini" <pbonzini@redhat.com>,
"Piotr Luc" <piotr.luc@intel.com>,
"Radim Krčmář" <rkrcmar@redhat.com>,
"Randy Dunlap" <rdunlap@infradead.org>,
"Sean Christopherson" <sean.j.christopherson@intel.com>,
"Thomas Gleixner" <tglx@linutronix.de>,
"Tom Lendacky" <thomas.lendacky@amd.com>,
"Vikas Shivappa" <vikas.shivappa@linux.intel.com>
Subject: Re: [PATCH v6 00/11] Intel SGX Driver
Date: Thu, 8 Feb 2018 09:46:53 +0100 [thread overview]
Message-ID: <20180208084653.GA4595@amd> (raw)
In-Reply-To: <20180109142730.ndhxmw6p22kae5fv@linux.intel.com>
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On Tue 2018-01-09 16:27:30, Jarkko Sakkinen wrote:
> On Thu, Jan 04, 2018 at 03:17:24PM +0100, Cedric Blancher wrote:
> > So how does this protect against the MELTDOWN attack (CVE-2017-5754)
> > and the MELTATOMBOMBA4 worm which uses this exploit?
> >
> > Ced
>
> Everything going out of L1 gets encrypted. This is done to defend
> against peripheral like adversaries and should work also against
> meltdown.
Yeah, but useless against spectre and ability to introduce bit flips
means this is generally useless...
Pavel
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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WARNING: multiple messages have this Message-ID (diff)
From: Pavel Machek <pavel@ucw.cz>
To: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Cc: Cedric Blancher <cedric.blancher@gmail.com>,
platform-driver-x86@vger.kernel.org, x86@kernel.org,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Borislav Petkov <bp@suse.de>,
"David S. Miller" <davem@davemloft.net>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Grzegorz Andrejczuk <grzegorz.andrejczuk@intel.com>,
Haim Cohen <haim.cohen@intel.com>, Ingo Molnar <mingo@kernel.org>,
Janakarajan Natarajan <Janakarajan.Natarajan@amd.com>,
Jim Mattson <jmattson@google.com>,
Kan Liang <Kan.liang@intel.com>,
"Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>,
Kyle Huey <me@kylehuey.com>, Len Brown <len.brown@intel.com>,
"open list:DOCUMENTATION" <linux-doc@vger.kernel.org>,
"open list:FILESYSTEMS (VFS and infrastructure)"
<linux-fsdevel@vger.kernel>
Subject: Re: [PATCH v6 00/11] Intel SGX Driver
Date: Thu, 8 Feb 2018 09:46:53 +0100 [thread overview]
Message-ID: <20180208084653.GA4595@amd> (raw)
In-Reply-To: <20180109142730.ndhxmw6p22kae5fv@linux.intel.com>
[-- Attachment #1: Type: text/plain, Size: 686 bytes --]
On Tue 2018-01-09 16:27:30, Jarkko Sakkinen wrote:
> On Thu, Jan 04, 2018 at 03:17:24PM +0100, Cedric Blancher wrote:
> > So how does this protect against the MELTDOWN attack (CVE-2017-5754)
> > and the MELTATOMBOMBA4 worm which uses this exploit?
> >
> > Ced
>
> Everything going out of L1 gets encrypted. This is done to defend
> against peripheral like adversaries and should work also against
> meltdown.
Yeah, but useless against spectre and ability to introduce bit flips
means this is generally useless...
Pavel
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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next prev parent reply other threads:[~2018-02-08 8:46 UTC|newest]
Thread overview: 132+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-11-25 19:29 [PATCH v6 00/11] Intel SGX Driver Jarkko Sakkinen
2017-11-25 19:29 ` Jarkko Sakkinen
2017-11-25 19:29 ` [PATCH v6 01/11] intel_sgx: updated MAINTAINERS Jarkko Sakkinen
2017-11-25 20:19 ` Joe Perches
2017-11-26 10:41 ` Bjørn Mork
2017-11-26 15:33 ` Jarkko Sakkinen
2017-11-25 19:29 ` [PATCH v6 02/11] x86: add SGX definition to cpufeature Jarkko Sakkinen
2017-11-25 19:29 ` [PATCH v6 03/11] x86: define IA32_FEATURE_CONTROL.SGX_ENABLE Jarkko Sakkinen
2017-11-28 17:13 ` Sean Christopherson
2017-11-28 20:47 ` Jarkko Sakkinen
2017-11-25 19:29 ` [PATCH v6 04/11] x86: define IA32_FEATUE_CONTROL.SGX_LC Jarkko Sakkinen
2017-11-28 17:16 ` Sean Christopherson
2017-11-28 18:28 ` Sean Christopherson
2017-11-28 20:53 ` Jarkko Sakkinen
2017-11-28 21:24 ` Jarkko Sakkinen
2017-11-28 21:33 ` Sean Christopherson
2017-11-28 21:55 ` Jarkko Sakkinen
2017-11-28 22:00 ` Sean Christopherson
2017-11-28 22:21 ` Jarkko Sakkinen
2017-11-29 15:38 ` Jarkko Sakkinen
2017-11-30 3:05 ` Kai Huang
2017-11-30 16:44 ` Jarkko Sakkinen
2017-11-28 21:40 ` Jarkko Sakkinen
2017-11-28 21:44 ` Sean Christopherson
2017-11-28 22:03 ` Jarkko Sakkinen
2017-11-28 22:11 ` Jarkko Sakkinen
2017-11-28 20:51 ` Jarkko Sakkinen
2017-11-25 19:29 ` [PATCH v6 05/11] x86: add SGX MSRs to msr-index.h Jarkko Sakkinen
2017-11-28 17:22 ` Sean Christopherson
2017-11-28 20:48 ` Jarkko Sakkinen
2017-11-25 19:29 ` [PATCH v6 06/11] intel_sgx: driver for Intel Software Guard Extensions Jarkko Sakkinen
2017-11-26 17:33 ` Jarkko Sakkinen
2017-11-26 18:46 ` Jarkko Sakkinen
2017-11-26 19:01 ` Jarkko Sakkinen
2017-11-29 18:02 ` Jarkko Sakkinen
2017-11-28 19:07 ` Sean Christopherson
2017-11-30 17:32 ` Sean Christopherson
2017-12-04 8:59 ` Jarkko Sakkinen
2017-11-25 19:29 ` [PATCH v6 07/11] intel_sgx: ptrace() support Jarkko Sakkinen
2017-11-26 15:44 ` Jarkko Sakkinen
2017-11-26 15:50 ` Joe Perches
2017-11-26 16:53 ` Jarkko Sakkinen
2017-11-26 17:01 ` Jarkko Sakkinen
2017-11-25 19:29 ` [PATCH v6 08/11] intel_sgx: in-kernel launch enclave Jarkko Sakkinen
2017-11-27 9:58 ` Till Smejkal
2017-11-28 20:17 ` Jarkko Sakkinen
2017-11-28 22:38 ` Jarkko Sakkinen
2017-12-04 9:23 ` Jarkko Sakkinen
2017-11-25 19:29 ` [PATCH v6 09/11] fs/pipe.c: export create_pipe_files() and replace_fd() Jarkko Sakkinen
2017-11-25 19:29 ` Jarkko Sakkinen
2017-11-28 14:35 ` Christoph Hellwig
2017-11-28 14:35 ` Christoph Hellwig
2017-11-28 20:42 ` Jarkko Sakkinen
2017-11-28 20:42 ` Jarkko Sakkinen
2017-11-28 21:05 ` Christoph Hellwig
2017-11-28 21:05 ` Christoph Hellwig
2017-11-28 21:57 ` Jarkko Sakkinen
2017-11-28 21:57 ` Jarkko Sakkinen
2017-11-29 23:13 ` Christoph Hellwig
2017-11-29 23:13 ` Christoph Hellwig
2017-11-30 16:43 ` Jarkko Sakkinen
2017-11-30 16:43 ` Jarkko Sakkinen
2017-11-30 18:38 ` James Bottomley
2017-11-30 18:38 ` James Bottomley
2017-12-04 9:00 ` Jarkko Sakkinen
2017-12-04 9:00 ` Jarkko Sakkinen
2017-12-04 9:00 ` Jarkko Sakkinen
2017-12-07 17:37 ` Jarkko Sakkinen
2017-12-07 17:37 ` Jarkko Sakkinen
2017-12-07 17:37 ` Jarkko Sakkinen
2017-12-08 13:05 ` Jarkko Sakkinen
2017-12-08 13:05 ` Jarkko Sakkinen
2017-11-25 19:29 ` [PATCH v6 10/11] intel_sgx: glue code for in-kernel LE Jarkko Sakkinen
2017-12-13 23:34 ` Christopherson, Sean J
2017-12-13 23:34 ` Christopherson, Sean J
2017-11-25 19:29 ` [PATCH v6 11/11] intel_sgx: driver documentation Jarkko Sakkinen
2017-11-25 19:29 ` Jarkko Sakkinen
2017-12-12 14:07 ` [PATCH v6 00/11] Intel SGX Driver Pavel Machek
2017-12-12 14:07 ` Pavel Machek
2017-12-12 14:07 ` Pavel Machek
2017-12-14 11:18 ` Jarkko Sakkinen
2017-12-14 11:18 ` Jarkko Sakkinen
2017-12-14 11:18 ` Jarkko Sakkinen
2017-12-19 23:33 ` Jarkko Sakkinen
2017-12-19 23:33 ` Jarkko Sakkinen
2017-12-19 23:33 ` Jarkko Sakkinen
2017-12-20 13:18 ` Jarkko Sakkinen
2017-12-20 13:18 ` Jarkko Sakkinen
2017-12-20 13:18 ` Jarkko Sakkinen
2018-01-04 14:17 ` Cedric Blancher
2018-01-04 14:17 ` Cedric Blancher
2018-01-04 14:27 ` Greg Kroah-Hartman
2018-01-04 14:27 ` Greg Kroah-Hartman
2018-01-04 19:18 ` Ozgur
2018-01-04 15:08 ` James Bottomley
2018-01-04 15:08 ` James Bottomley
2018-01-09 14:27 ` Jarkko Sakkinen
2018-01-09 14:27 ` Jarkko Sakkinen
2018-02-08 8:46 ` Pavel Machek [this message]
2018-02-08 8:46 ` Pavel Machek
2018-02-08 13:48 ` Jarkko Sakkinen
2018-02-08 13:48 ` Jarkko Sakkinen
2017-12-27 10:30 Dr. Greg Wettstein
2017-12-27 10:30 ` Dr. Greg Wettstein
2017-12-27 10:30 ` Dr. Greg Wettstein
2017-12-27 20:46 ` Pavel Machek
2017-12-27 20:46 ` Pavel Machek
2017-12-27 20:46 ` Pavel Machek
2018-01-03 0:59 Dr. Greg Wettstein
2018-01-03 0:59 ` Dr. Greg Wettstein
2018-01-03 0:59 ` Dr. Greg Wettstein
2018-01-03 2:00 ` Christian Stroetmann
2018-01-03 9:48 ` Pavel Machek
2018-01-03 9:48 ` Pavel Machek
2018-01-03 9:48 ` Pavel Machek
2018-01-04 8:02 Dr. Greg Wettstein
2018-01-04 9:20 ` Christian Stroetmann
2018-01-04 9:06 Dr. Greg Wettstein
2018-01-04 9:06 ` Dr. Greg Wettstein
2018-01-04 9:06 ` Dr. Greg Wettstein
2018-01-09 14:25 ` Jarkko Sakkinen
2018-01-09 14:25 ` Jarkko Sakkinen
2018-01-09 14:25 ` Jarkko Sakkinen
2018-01-04 21:09 Dr. Greg Wettstein
2018-01-04 21:09 ` Dr. Greg Wettstein
2018-01-05 9:50 Dr. Greg Wettstein
2018-01-09 21:50 Dr. Greg Wettstein
2018-01-09 21:50 ` Dr. Greg Wettstein
2018-01-09 21:50 ` Dr. Greg Wettstein
2018-01-10 16:16 ` Jarkko Sakkinen
2018-01-10 16:16 ` Jarkko Sakkinen
2018-01-10 16:16 ` Jarkko Sakkinen
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