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Documentation: clarify PR_SPEC_L1D_FLUSH
authorBrendan Jackman <jackmanb@google.com>
Wed, 15 Oct 2025 17:02:05 +0000 (17:02 +0000)
committerJonathan Corbet <corbet@lwn.net>
Wed, 29 Oct 2025 22:19:27 +0000 (16:19 -0600)
commitaab703b3c6f62f698d294444abe05cc83b50cff2
treeca4532edaec33ab673cd49e4b3883a67e96fe5d1tree | snapshot
parentba2457109d5b47a90fe565b39524f7225fc23e60commit | diff
Documentation: clarify PR_SPEC_L1D_FLUSH

For PR_SPEC_STORE_BYPASS and PR_SPEC_INDIRECT_BRANCH, PR_SPEC_DISABLE
means "disable the speculation bug" i.e. "enable the mitigation".

For PR_SPEC_L1D_FLUSH, PR_SPEC_DISABLE means "disable the mitigation".
This is not obvious, so document it.

Signed-off-by: Brendan Jackman <jackmanb@google.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <20251015-l1d-flush-doc-v1-1-f8cefea3f2f2@google.com>
Documentation/userspace-api/spec_ctrl.rst diff | blob | blame | history
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