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Subject[PATCH v7 09/12] evm: Deprecate EVM_ALLOW_METADATA_WRITES
Date
This patch deprecates the usage of EVM_ALLOW_METADATA_WRITES, as it is no
longer necessary. All the issues that prevent the usage of EVM portable
signatures just with a public key loaded have been solved.

This flag will remain available for a short time to ensure that users are
able to use EVM without it.

Signed-off-by: Roberto Sassu <roberto.sassu@huawei.com>
---
Documentation/ABI/testing/evm | 10 ++++++++--
1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/Documentation/ABI/testing/evm b/Documentation/ABI/testing/evm
index 2243b72e4110..553fd8a33e56 100644
--- a/Documentation/ABI/testing/evm
+++ b/Documentation/ABI/testing/evm
@@ -24,7 +24,7 @@ Description:
1 Enable digital signature validation
2 Permit modification of EVM-protected metadata at
runtime. Not supported if HMAC validation and
- creation is enabled.
+ creation is enabled (deprecated).
31 Disable further runtime modification of EVM policy
=== ==================================================

@@ -47,7 +47,13 @@ Description:

will enable digital signature validation, permit
modification of EVM-protected metadata and
- disable all further modification of policy
+ disable all further modification of policy. This option is now
+ deprecated in favor of::
+
+ echo 0x80000002 ><securityfs>/evm
+
+ as the outstanding issues that prevent the usage of EVM portable
+ signatures have been solved.

Echoing a value is additive, the new value is added to the
existing initialization flags.
--
2.25.1
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