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From: Matthew Garrett <mjg59@srcf.ucam.org>
To: Andy Lutomirski <luto@amacapital.net>
Cc: Thomas Gleixner <tglx@linutronix.de>,
	"Daniel P. Smith" <dpsmith@apertussolutions.com>,
	"Eric W. Biederman" <ebiederm@xmission.com>,
	Eric Biggers <ebiggers@kernel.org>,
	Ross Philipson <ross.philipson@oracle.com>,
	linux-kernel@vger.kernel.org, x86@kernel.org,
	linux-integrity@vger.kernel.org, linux-doc@vger.kernel.org,
	linux-crypto@vger.kernel.org, kexec@lists.infradead.org,
	linux-efi@vger.kernel.org, iommu@lists.linux-foundation.org,
	mingo@redhat.com, bp@alien8.de, hpa@zytor.com,
	dave.hansen@linux.intel.com, ardb@kernel.org,
	James.Bottomley@hansenpartnership.com, peterhuewe@gmx.de,
	jarkko@kernel.org, jgg@ziepe.ca, nivedita@alum.mit.edu,
	herbert@gondor.apana.org.au, davem@davemloft.net, corbet@lwn.net,
	dwmw2@infradead.org, baolu.lu@linux.intel.com,
	kanth.ghatraju@oracle.com, andrew.cooper3@citrix.com,
	trenchboot-devel@googlegroups.com
Subject: Re: [PATCH v9 06/19] x86: Add early SHA-1 support for Secure Launch early measurements
Date: Thu, 29 Aug 2024 04:25:26 +0100	[thread overview]
Message-ID: <Zs/qJsKu3StL3Wzt@srcf.ucam.org> (raw)
In-Reply-To: <CALCETrXQ7rChWLDqTG0+KY7rsfajSPguMnHO1G4VJi_mgwN9Zw@mail.gmail.com>

On Wed, Aug 28, 2024 at 08:17:05PM -0700, Andy Lutomirski wrote:

> Ross et al, can you confirm that your code actually, at least by
> default and with a monstrous warning to anyone who tries to change the
> default, caps SHA1 PCRs if SHA256 is available?  And then can we maybe
> all stop hassling the people trying to develop this series about the
> fact that they're doing their best with the obnoxious system that the
> TPM designers gave them?

Presumably this would be dependent upon non-SHA1 banks being enabled?

  reply	other threads:[~2024-08-29  3:34 UTC|newest]

Thread overview: 113+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-05-31  1:03 [PATCH v9 00/19] x86: Trenchboot secure dynamic launch Linux kernel support Ross Philipson
2024-05-31  1:03 ` [PATCH v9 01/19] x86/boot: Place kernel_info at a fixed offset Ross Philipson
2024-06-04 18:18   ` Jarkko Sakkinen
2024-06-04 20:28     ` ross.philipson
2024-05-31  1:03 ` [PATCH v9 02/19] Documentation/x86: Secure Launch kernel documentation Ross Philipson
2024-05-31  1:03 ` [PATCH v9 03/19] x86: Secure Launch Kconfig Ross Philipson
2024-05-31  1:03 ` [PATCH v9 04/19] x86: Secure Launch Resource Table header file Ross Philipson
2024-06-04 18:21   ` Jarkko Sakkinen
2024-06-04 20:31     ` ross.philipson
2024-06-04 22:36       ` Jarkko Sakkinen
2024-06-04 23:00         ` ross.philipson
2024-06-05  0:22           ` Jarkko Sakkinen
2024-06-05  0:27             ` Jarkko Sakkinen
2024-06-05  2:33             ` ross.philipson
2024-06-05  4:04               ` Jarkko Sakkinen
2024-06-05 19:03                 ` ross.philipson
2024-06-06  6:02                   ` Jarkko Sakkinen
2024-06-06 16:49                     ` ross.philipson
2024-06-20  0:18                       ` Jarkko Sakkinen
2024-06-20 16:55                         ` ross.philipson
2024-05-31  1:03 ` [PATCH v9 05/19] x86: Secure Launch main " Ross Philipson
2024-06-04 18:24   ` Jarkko Sakkinen
2024-06-04 20:52     ` ross.philipson
2024-05-31  1:03 ` [PATCH v9 06/19] x86: Add early SHA-1 support for Secure Launch early measurements Ross Philipson
2024-05-31  2:16   ` Eric Biggers
2024-05-31 13:54     ` Eric W. Biederman
2024-08-15 17:38       ` Daniel P. Smith
2024-08-15 19:10         ` Thomas Gleixner
2024-08-16 10:42           ` Jarkko Sakkinen
2024-08-16 11:01           ` Andrew Cooper
2024-08-16 11:22             ` Jarkko Sakkinen
2024-08-16 18:41               ` Matthew Garrett
2024-08-19 18:05                 ` Jarkko Sakkinen
2024-08-19 18:24                   ` Matthew Garrett
2024-08-20 15:26                     ` Jarkko Sakkinen
2024-08-22 18:29           ` Daniel P. Smith
2024-08-29  3:17           ` Andy Lutomirski
2024-08-29  3:25             ` Matthew Garrett [this message]
2024-08-29 17:26               ` Andy Lutomirski
2024-09-05  1:01             ` Daniel P. Smith
2024-09-13  0:34               ` Daniel P. Smith
2024-09-14  3:57                 ` Andy Lutomirski
2024-09-21 18:36                   ` Daniel P. Smith
2024-09-21 22:40                     ` Andy Lutomirski
2024-11-02 14:53                       ` Daniel P. Smith
2024-11-02 16:04                         ` James Bottomley
2024-11-15  1:17                           ` Daniel P. Smith
2024-11-18 18:43                             ` Andy Lutomirski
2024-11-18 18:50                               ` Andy Lutomirski
2024-11-18 19:12                               ` James Bottomley
2024-11-18 20:02                                 ` Andy Lutomirski
2024-11-21 20:11                                   ` ross.philipson
2024-11-21 20:54                                     ` Andy Lutomirski
2024-11-21 22:42                                       ` Andy Lutomirski
2024-11-22 23:37                                         ` ross.philipson
2024-12-12 19:56                                   ` Daniel P. Smith
2024-12-12 22:30                                     ` Andy Lutomirski
2024-12-14  2:56                                       ` Daniel P. Smith
2024-05-31 16:18     ` ross.philipson
2024-08-27 18:14     ` Eric Biggers
2024-08-28 20:14       ` ross.philipson
2024-08-28 23:13         ` Eric Biggers
2024-06-04 18:52   ` Jarkko Sakkinen
2024-06-04 21:02     ` ross.philipson
2024-06-04 22:40       ` Jarkko Sakkinen
2024-05-31  1:03 ` [PATCH v9 07/19] x86: Add early SHA-256 " Ross Philipson
2024-05-31  1:03 ` [PATCH v9 08/19] x86: Secure Launch kernel early boot stub Ross Philipson
2024-05-31 11:00   ` Ard Biesheuvel
2024-05-31 13:33     ` Ard Biesheuvel
2024-05-31 14:04       ` Ard Biesheuvel
2024-05-31 16:13         ` Ard Biesheuvel
2024-06-04 17:31         ` ross.philipson
2024-06-04 17:24       ` ross.philipson
2024-06-04 17:27         ` Ard Biesheuvel
2024-06-04 17:33           ` ross.philipson
2024-06-04 20:54             ` Ard Biesheuvel
2024-06-04 21:12               ` ross.philipson
2024-06-04 17:14     ` ross.philipson
2024-06-04 19:56   ` Jarkko Sakkinen
2024-06-04 21:09     ` ross.philipson
2024-06-04 22:43       ` Jarkko Sakkinen
2024-05-31  1:03 ` [PATCH v9 09/19] x86: Secure Launch kernel late " Ross Philipson
2024-06-04 19:58   ` Jarkko Sakkinen
2024-06-04 21:16     ` ross.philipson
2024-06-04 22:45       ` Jarkko Sakkinen
2024-06-04 19:59   ` Jarkko Sakkinen
2024-06-04 21:17     ` ross.philipson
2024-08-12 19:02     ` ross.philipson
2024-08-15 18:35       ` Jarkko Sakkinen
2024-05-31  1:03 ` [PATCH v9 10/19] x86: Secure Launch SMP bringup support Ross Philipson
2024-06-04 20:05   ` Jarkko Sakkinen
2024-06-04 21:47     ` ross.philipson
2024-06-04 22:46       ` Jarkko Sakkinen
2024-05-31  1:03 ` [PATCH v9 11/19] kexec: Secure Launch kexec SEXIT support Ross Philipson
2024-05-31  1:03 ` [PATCH v9 12/19] reboot: Secure Launch SEXIT support on reboot paths Ross Philipson
2024-05-31  1:03 ` [PATCH v9 13/19] tpm: Protect against locality counter underflow Ross Philipson
2024-06-04 20:12   ` Jarkko Sakkinen
2024-08-15 18:52     ` Daniel P. Smith
2024-05-31  1:03 ` [PATCH v9 14/19] tpm: Ensure tpm is in known state at startup Ross Philipson
2024-06-04 20:14   ` Jarkko Sakkinen
2024-08-15 19:24     ` Daniel P. Smith
2024-05-31  1:03 ` [PATCH v9 15/19] tpm: Make locality requests return consistent values Ross Philipson
2024-05-31  1:03 ` [PATCH v9 16/19] tpm: Add ability to set the preferred locality the TPM chip uses Ross Philipson
2024-06-04 20:27   ` Jarkko Sakkinen
2024-06-04 22:14     ` ross.philipson
2024-06-04 22:50       ` Jarkko Sakkinen
2024-06-04 23:04         ` ross.philipson
2024-05-31  1:03 ` [PATCH v9 17/19] tpm: Add sysfs interface to allow setting and querying the preferred locality Ross Philipson
2024-06-04 20:27   ` Jarkko Sakkinen
2024-05-31  1:03 ` [PATCH v9 18/19] x86: Secure Launch late initcall platform module Ross Philipson
2024-05-31  1:03 ` [PATCH v9 19/19] x86: EFI stub DRTM launch support for Secure Launch Ross Philipson
2024-05-31 11:09   ` Ard Biesheuvel
2024-06-04 17:22     ` ross.philipson

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