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authorDavid Gstir <david@sigma-star.at>2024-04-03 10:21:21 +0300
committerJarkko Sakkinen <jarkko@kernel.org>2024-05-09 18:29:03 +0300
commitb85b253e23bc985ecb0dad329da2147fb396223c (patch)
tree3fcc2d5c26298c1f86231df1e12926a1de347703 /Documentation/admin-guide
parentdf866688d49ccbe4efcd2a3e7d1e1b5e6ee1aa71 (diff)
downloadlinux-b85b253e23bc985ecb0dad329da2147fb396223c.tar.xz
docs: document DCP-backed trusted keys kernel params
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 <richard@nod.at> Signed-off-by: Richard Weinberger <richard@nod.at> Co-developed-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at> Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at> Signed-off-by: David Gstir <david@sigma-star.at> Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org> Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
Diffstat (limited to 'Documentation/admin-guide')
-rw-r--r--Documentation/admin-guide/kernel-parameters.txt13
1 files changed, 13 insertions, 0 deletions
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index 396137ee018d..fd2b74092c47 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -6749,6 +6749,7 @@
- "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
@@ -6764,6 +6765,18 @@
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 the
+ blob key is all zeros. 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: <string>
[x86] reliable: mark tsc clocksource as reliable, this