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[83.175.106.198]) by smtp.gmail.com with UTF8SMTPSA id t20-20020a50ab54000000b00533e915923asm8352930edc.49.2023.10.24.09.20.47 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 24 Oct 2023 09:20:48 -0700 (PDT) From: David Gstir To: Mimi Zohar , James Bottomley , Jarkko Sakkinen , Herbert Xu , "David S. Miller" Cc: David Gstir , Shawn Guo , Jonathan Corbet , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam , NXP Linux Team , Ahmad Fatoum , sigma star Kernel Team , David Howells , Li Yang , Paul Moore , James Morris , "Serge E. Hallyn" , "Paul E. McKenney" , Randy Dunlap , Catalin Marinas , "Rafael J. Wysocki" , Tejun Heo , "Steven Rostedt (Google)" , linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-integrity@vger.kernel.org, keyrings@vger.kernel.org, linux-crypto@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linuxppc-dev@lists.ozlabs.org, linux-security-module@vger.kernel.org, Richard Weinberger , David Oberhollenzer Subject: [PATCH v4 4/5] docs: document DCP-backed trusted keys kernel params Date: Tue, 24 Oct 2023 18:20:18 +0200 Message-ID: <20231024162024.51260-5-david@sigma-star.at> X-Mailer: git-send-email 2.42.0 In-Reply-To: <20231024162024.51260-1-david@sigma-star.at> References: <20231024162024.51260-1-david@sigma-star.at> Precedence: bulk X-Mailing-List: linux-doc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Document the kernel parameters trusted.dcp_use_otp_key and trusted.dcp_skip_zk_test for DCP-backed trusted keys. Co-developed-by: Richard Weinberger Signed-off-by: Richard Weinberger Co-developed-by: David Oberhollenzer Signed-off-by: David Oberhollenzer Signed-off-by: David Gstir --- Documentation/admin-guide/kernel-parameters.txt | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt index 0a1731a0f0ef..c11eda8b38e0 100644 --- a/Documentation/admin-guide/kernel-parameters.txt +++ b/Documentation/admin-guide/kernel-parameters.txt @@ -6566,6 +6566,7 @@ - "tpm" - "tee" - "caam" + - "dcp" If not specified then it defaults to iterating through the trust source list starting with TPM and assigns the first trust source as a backend which is initialized @@ -6581,6 +6582,18 @@ If not specified, "default" is used. In this case, the RNG's choice is left to each individual trust source. + trusted.dcp_use_otp_key + This is intended to be used in combination with + trusted.source=dcp and will select the DCP OTP key + instead of the DCP UNIQUE key blob encryption. + + trusted.dcp_skip_zk_test + This is intended to be used in combination with + trusted.source=dcp and will disable the check if all + the blob key is zero'ed. This is helpful for situations where + having this key zero'ed is acceptable. E.g. in testing + scenarios. + tsc= Disable clocksource stability checks for TSC. Format: [x86] reliable: mark tsc clocksource as reliable, this -- 2.35.3