From: Jethro Beekman <jethro@fortanix.com>
To: Nathaniel McCallum <npmccallum@redhat.com>, luto@kernel.org
Cc: Neil Horman <nhorman@redhat.com>,
jarkko.sakkinen@linux.intel.com, x86@kernel.org,
platform-driver-x86@vger.kernel.org,
linux-kernel@vger.kernel.org, mingo@redhat.com,
intel-sgx-kernel-dev@lists.01.org, hpa@zytor.com,
dvhart@infradead.org, tglx@linutronix.de, andy@infradead.org,
Peter Jones <pjones@redhat.com>
Subject: Re: [intel-sgx-kernel-dev] [PATCH v11 13/13] intel_sgx: in-kernel launch enclave
Date: Wed, 20 Jun 2018 11:39:00 -0700 [thread overview]
Message-ID: <b5c81504-83cd-8150-ebe4-41355026590f@fortanix.com> (raw)
In-Reply-To: <e3f8e5b9-aa1e-20da-37ac-3c3caafa66bc@fortanix.com>
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On 2018-06-20 11:16, Jethro Beekman wrote:
> > This last bit is also repeated in different words in Table 35-2 and
> > Section 42.2.2. The MSRs are *not writable* before the write-lock bit
> > itself is locked. Meaning the MSRs are either locked with Intel's key
> > hash, or not locked at all.
Actually, this might be a documentation bug. I have some test hardware
and I was able to configure the MSRs in the BIOS and then read the MSRs
after boot like this:
MSR 0x3a 0x0000000000040005
MSR 0x8c 0x20180620aaaaaaaa
MSR 0x8d 0x20180620bbbbbbbb
MSR 0x8e 0x20180620cccccccc
MSR 0x8f 0x20180620dddddddd
Since this is not production hardware, it could also be a CPU bug of course.
If it is indeed possible to configure AND lock the MSR values to
non-Intel values, I'm very much in favor of Nathaniels proposal to treat
the launch enclave like any other firmware blob.
Jethro Beekman | Fortanix
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next prev parent reply other threads:[~2018-06-20 18:39 UTC|newest]
Thread overview: 181+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-06-08 17:09 [PATCH v11 00/13] Intel SGX1 support Jarkko Sakkinen
2018-06-08 17:09 ` Jarkko Sakkinen
2018-06-08 17:09 ` Jarkko Sakkinen
2018-06-08 17:09 ` Jarkko Sakkinen
2018-06-08 17:09 ` [PATCH v11 01/13] compiler.h, kasan: add __SANITIZE_ADDRESS__ check for __no_kasan_or_inline Jarkko Sakkinen
2018-06-08 17:09 ` Jarkko Sakkinen
2018-06-08 17:09 ` [PATCH v11 02/13] x86, sgx: updated MAINTAINERS Jarkko Sakkinen
2018-06-08 17:09 ` Jarkko Sakkinen
2018-06-08 17:09 ` [PATCH v11 03/13] x86, sgx: add SGX definitions to cpufeature Jarkko Sakkinen
2018-06-08 17:09 ` Jarkko Sakkinen
2018-06-08 17:09 ` [PATCH v11 04/13] x86, sgx: add SGX definitions to msr-index.h Jarkko Sakkinen
2018-06-08 17:09 ` Jarkko Sakkinen
2018-06-08 17:25 ` Dave Hansen
2018-06-19 13:18 ` Jarkko Sakkinen
2018-06-19 13:18 ` Jarkko Sakkinen
2018-06-19 14:01 ` Dave Hansen
2018-06-19 14:01 ` Dave Hansen
2018-06-21 17:22 ` Jarkko Sakkinen
2018-06-21 17:22 ` Jarkko Sakkinen
2018-06-08 17:09 ` [PATCH v11 05/13] x86, cpufeatures: add Intel-defined SGX leaf CPUID_12_EAX Jarkko Sakkinen
2018-06-08 17:09 ` Jarkko Sakkinen
2018-06-08 17:09 ` [PATCH v11 06/13] crypto: aesni: add minimal build option for SGX LE Jarkko Sakkinen
2018-06-08 17:09 ` Jarkko Sakkinen
2018-06-08 17:27 ` Dave Hansen
2018-06-11 15:24 ` Sean Christopherson
2018-06-08 17:09 ` [PATCH v11 07/13] x86, sgx: detect Intel SGX Jarkko Sakkinen
2018-06-08 17:09 ` Jarkko Sakkinen
2018-06-08 17:36 ` Dave Hansen
2018-06-18 21:36 ` [intel-sgx-kernel-dev] " Andy Lutomirski
2018-06-25 7:39 ` Jarkko Sakkinen
2018-06-19 13:33 ` Jarkko Sakkinen
2018-06-19 13:33 ` Jarkko Sakkinen
2018-06-11 11:35 ` Neil Horman
2018-06-19 13:34 ` Jarkko Sakkinen
2018-06-19 13:34 ` Jarkko Sakkinen
2018-06-08 17:09 ` [PATCH v11 08/13] x86, sgx: added ENCLS wrappers Jarkko Sakkinen
2018-06-08 17:09 ` Jarkko Sakkinen
2018-06-08 17:43 ` Dave Hansen
2018-06-19 13:25 ` Jarkko Sakkinen
2018-06-19 13:25 ` Jarkko Sakkinen
2018-06-20 13:12 ` Sean Christopherson
2018-06-20 13:12 ` Sean Christopherson
2018-06-25 9:16 ` Jarkko Sakkinen
2018-06-25 9:16 ` Jarkko Sakkinen
2018-06-08 17:09 ` [PATCH v11 09/13] x86, sgx: basic routines for enclave page cache Jarkko Sakkinen
2018-06-08 17:09 ` Jarkko Sakkinen
2018-06-08 18:21 ` Jethro Beekman
2018-06-18 21:33 ` [intel-sgx-kernel-dev] " Andy Lutomirski
2018-06-25 7:36 ` Jarkko Sakkinen
2018-06-19 14:08 ` Jarkko Sakkinen
2018-06-19 14:08 ` Jarkko Sakkinen
2018-06-19 15:44 ` Jethro Beekman
2018-06-19 15:44 ` Jethro Beekman
2018-06-08 18:24 ` Dave Hansen
2018-06-19 14:57 ` Jarkko Sakkinen
2018-06-19 14:57 ` Jarkko Sakkinen
2018-06-19 15:19 ` Neil Horman
2018-06-19 15:19 ` Neil Horman
2018-06-19 15:32 ` Dave Hansen
2018-06-19 15:32 ` Dave Hansen
2018-06-25 9:01 ` Jarkko Sakkinen
2018-06-25 9:01 ` Jarkko Sakkinen
2018-06-19 15:59 ` Sean Christopherson
2018-06-19 15:59 ` Sean Christopherson
2018-06-25 9:14 ` Jarkko Sakkinen
2018-06-25 9:14 ` Jarkko Sakkinen
2018-06-10 5:32 ` [intel-sgx-kernel-dev] " Andy Lutomirski
2018-06-11 15:12 ` Sean Christopherson
2018-06-20 13:21 ` Sean Christopherson
2018-06-20 13:21 ` Sean Christopherson
2018-06-25 9:21 ` Jarkko Sakkinen
2018-06-25 9:21 ` Jarkko Sakkinen
2018-06-25 16:14 ` Neil Horman
2018-06-25 16:14 ` Neil Horman
2018-06-20 15:26 ` Sean Christopherson
2018-06-20 15:26 ` Sean Christopherson
2018-06-25 9:21 ` Jarkko Sakkinen
2018-06-25 9:21 ` Jarkko Sakkinen
2018-06-08 17:09 ` [PATCH v11 10/13] intel_sgx: driver for Intel Software Guard Extensions Jarkko Sakkinen
2018-06-08 17:09 ` Jarkko Sakkinen
2018-06-08 19:35 ` Dave Hansen
2018-06-19 13:29 ` Jarkko Sakkinen
2018-06-19 13:29 ` Jarkko Sakkinen
2018-06-08 17:09 ` [PATCH v11 11/13] intel_sgx: ptrace() support Jarkko Sakkinen
2018-06-08 17:09 ` Jarkko Sakkinen
2018-06-08 18:34 ` Dave Hansen
2018-06-11 15:02 ` Sean Christopherson
2018-06-19 13:38 ` Jarkko Sakkinen
2018-06-08 17:09 ` [PATCH v11 12/13] intel_sgx: driver documentation Jarkko Sakkinen
2018-06-08 17:09 ` Jarkko Sakkinen
2018-06-08 17:09 ` Jarkko Sakkinen
2018-06-08 18:32 ` Jethro Beekman
2018-06-19 13:30 ` Jarkko Sakkinen
2018-06-19 13:30 ` Jarkko Sakkinen
2018-06-08 21:41 ` Randy Dunlap
2018-06-08 21:41 ` Randy Dunlap
2018-06-19 13:31 ` Jarkko Sakkinen
2018-06-19 13:31 ` Jarkko Sakkinen
2018-06-08 17:09 ` [PATCH v11 13/13] intel_sgx: in-kernel launch enclave Jarkko Sakkinen
2018-06-08 17:09 ` Jarkko Sakkinen
2018-06-08 18:50 ` [intel-sgx-kernel-dev] " Andy Lutomirski
2018-06-19 15:05 ` Jarkko Sakkinen
2018-06-10 5:39 ` Andy Lutomirski
2018-06-11 5:17 ` Andy Lutomirski
2018-06-11 11:52 ` Neil Horman
2018-06-12 4:55 ` Andy Lutomirski
2018-06-12 17:45 ` Neil Horman
2018-06-18 21:58 ` Andy Lutomirski
2018-06-19 13:17 ` Neil Horman
2018-06-20 16:28 ` Nathaniel McCallum
2018-06-20 18:16 ` Jethro Beekman
2018-06-20 18:39 ` Jethro Beekman [this message]
2018-06-20 21:01 ` Sean Christopherson
2018-06-21 12:32 ` Nathaniel McCallum
2018-06-21 15:29 ` Neil Horman
2018-06-21 19:11 ` Nathaniel McCallum
2018-06-21 21:20 ` Sean Christopherson
2018-06-25 21:00 ` Nathaniel McCallum
2018-06-25 22:35 ` Sean Christopherson
2018-06-21 22:48 ` Andy Lutomirski
2018-06-25 21:06 ` Nathaniel McCallum
2018-06-25 23:40 ` Andy Lutomirski
2018-06-25 9:41 ` Jarkko Sakkinen
2018-06-25 15:45 ` Andy Lutomirski
2018-06-25 21:28 ` Nathaniel McCallum
2018-06-26 8:43 ` Jarkko Sakkinen
2018-06-26 15:01 ` Nathaniel McCallum
2018-06-27 15:31 ` Jarkko Sakkinen
2018-06-21 12:12 ` Nathaniel McCallum
2018-06-25 9:27 ` Jarkko Sakkinen
2018-06-25 21:26 ` Nathaniel McCallum
2018-06-20 7:23 ` Jarkko Sakkinen
2018-06-12 10:50 ` [PATCH v11 00/13] Intel SGX1 support Pavel Machek
2018-06-12 10:50 ` Pavel Machek
2018-06-19 14:59 ` Jarkko Sakkinen
2018-06-19 14:59 ` Jarkko Sakkinen
2018-06-19 14:59 ` Jarkko Sakkinen
2018-06-19 20:04 ` Pavel Machek
2018-06-19 20:04 ` Pavel Machek
2018-06-19 20:23 ` Peter Zijlstra
2018-06-19 20:23 ` Peter Zijlstra
2018-06-19 20:23 ` Peter Zijlstra
2018-06-19 20:23 ` Peter Zijlstra
2018-06-19 21:48 ` Josh Triplett
2018-06-19 21:48 ` Josh Triplett
2018-06-19 21:48 ` Josh Triplett
2018-06-19 21:48 ` Josh Triplett
2018-12-09 20:06 ` Pavel Machek
2018-12-09 20:06 ` Pavel Machek
2018-12-09 20:06 ` Pavel Machek
2018-12-09 20:06 ` Pavel Machek
2018-12-10 7:47 ` Josh Triplett
2018-12-10 7:47 ` Josh Triplett
2018-12-10 7:47 ` Josh Triplett
2018-12-10 7:47 ` Josh Triplett
2018-12-10 8:27 ` Pavel Machek
2018-12-10 8:27 ` Pavel Machek
2018-12-10 8:27 ` Pavel Machek
2018-12-10 8:27 ` Pavel Machek
2018-12-10 23:12 ` Josh Triplett
2018-12-10 23:12 ` Josh Triplett
2018-12-10 23:12 ` Josh Triplett
2018-12-10 23:12 ` Josh Triplett
2018-12-11 18:10 ` Dave Hansen
2018-12-11 18:10 ` Dave Hansen
2018-12-11 18:10 ` Dave Hansen
2018-12-11 18:10 ` Dave Hansen
2018-12-11 18:31 ` Sean Christopherson
2018-12-11 18:31 ` Sean Christopherson
2018-12-11 18:31 ` Sean Christopherson
2018-12-11 18:31 ` Sean Christopherson
2018-06-19 20:36 ` Peter Zijlstra
2018-06-19 20:36 ` Peter Zijlstra
2018-06-19 20:36 ` Peter Zijlstra
2018-06-19 20:36 ` Peter Zijlstra
2018-06-21 12:55 ` Ingo Molnar
2018-06-21 12:55 ` Ingo Molnar
2018-06-21 12:55 ` Ingo Molnar
2018-06-25 9:44 ` Jarkko Sakkinen
2018-06-25 9:44 ` Jarkko Sakkinen
2018-06-25 9:44 ` Jarkko Sakkinen
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