[v2,0/2] Add measurement and event log support for CC platforms

Message ID	20240215030002.281456-1-sathyanarayanan.kuppuswamy@linux.intel.com
Headers	show Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.13]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id AB80A1864; Thu, 15 Feb 2024 03:02:05 +0000 (UTC) From: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com> To: Ard Biesheuvel <ardb@kernel.org> Cc: Ilias Apalodimas <ilias.apalodimas@linaro.org>, linux-kernel@vger.kernel.org, linux-efi@vger.kernel.org Subject: [PATCH v2 0/2] Add measurement and event log support for CC platforms Date: Thu, 15 Feb 2024 03:00:00 +0000 Message-Id: <20240215030002.281456-1-sathyanarayanan.kuppuswamy@linux.intel.com> Precedence: bulk MIME-Version: 1.0 Content-Transfer-Encoding: 8bit
Series	Add measurement and event log support for CC platforms \| expand [v2,0/2] Add measurement and event log support for CC platforms [v2,1/2] efi/libstub: Add Confidential Computing (CC) measurement support [v2,2/2] efi/libstub: Add get_event_log() support for CC platforms

Message ID

20240215030002.281456-1-sathyanarayanan.kuppuswamy@linux.intel.com

Headers

From: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
To: Ard Biesheuvel <ardb@kernel.org>
Cc: Ilias Apalodimas <ilias.apalodimas@linaro.org>,
	linux-kernel@vger.kernel.org,
	linux-efi@vger.kernel.org
Subject: [PATCH v2 0/2] Add measurement and event log support for CC platforms
Date: Thu, 15 Feb 2024 03:00:00 +0000
Message-Id: 
 <20240215030002.281456-1-sathyanarayanan.kuppuswamy@linux.intel.com>
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MIME-Version: 1.0
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Series

Add measurement and event log support for CC platforms | expand

Message

Kuppuswamy Sathyanarayanan Feb. 15, 2024, 3 a.m. UTC

In a Confidential Computing (CC) environment, not all platforms
implement TPM support. Instead, it may support measurement and event
logging based upon the hardware Trusted Execution Environment (TEE)
capability. For such cases, UEFI specification [1] defines an
alternative measurement protocol and interfaces. This patch set
enables this support in EFI bootstub.

https://uefi.org/specs/UEFI/2.10/38_Confidential_Computing.html#efi-cc-measurement-protocol [1]

Changes since v1:

* Add missing tagged event data.
* Add support for get_event_log().

Kuppuswamy Sathyanarayanan (2):
  efi/libstub: Add Confidential Computing (CC) measurement support
  efi/libstub: Add get_event_log() support for CC platforms

 .../firmware/efi/libstub/efi-stub-helper.c    | 127 ++++++++++++++----
 drivers/firmware/efi/libstub/efi-stub.c       |   2 +-
 drivers/firmware/efi/libstub/efistub.h        |  78 ++++++++++-
 drivers/firmware/efi/libstub/tpm.c            |  78 +++++++----
 drivers/firmware/efi/libstub/x86-stub.c       |   2 +-
 include/linux/efi.h                           |   4 +
 6 files changed, 235 insertions(+), 56 deletions(-)