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| author | Kees Cook <keescook@chromium.org> | 2018-08-27 14:51:54 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-06-25 11:46:25 +0200 |
| commit | 08d453eca365ac4fd93b559662248108885d631e (patch) | |
| tree | b0d75b1f16198c66f2e64fa5757e81aff0361629 /Documentation | |
| parent | 4395f2316066cf6d6afc8788b9491d9168a060e2 (diff) | |
| download | linux-stable-08d453eca365ac4fd93b559662248108885d631e.tar.gz linux-stable-08d453eca365ac4fd93b559662248108885d631e.tar.bz2 linux-stable-08d453eca365ac4fd93b559662248108885d631e.zip | |
random: make CPU trust a boot parameter
commit 9b25436662d5fb4c66eb527ead53cab15f596ee0 upstream.
Instead of forcing a distro or other system builder to choose
at build time whether the CPU is trusted for CRNG seeding via
CONFIG_RANDOM_TRUST_CPU, provide a boot-time parameter for end users to
control the choice. The CONFIG will set the default state instead.
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/admin-guide/kernel-parameters.txt | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt index 0c3c72a0ba97..5840c7e810f5 100644 --- a/Documentation/admin-guide/kernel-parameters.txt +++ b/Documentation/admin-guide/kernel-parameters.txt @@ -3526,6 +3526,12 @@ ramdisk_size= [RAM] Sizes of RAM disks in kilobytes See Documentation/blockdev/ramdisk.txt. + random.trust_cpu={on,off} + [KNL] Enable or disable trusting the use of the + CPU's random number generator (if available) to + fully seed the kernel's CRNG. Default is controlled + by CONFIG_RANDOM_TRUST_CPU. + ras=option[,option,...] [KNL] RAS-specific options cec_disable [X86] |