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| author |   Kees Cook <keescook@chromium.org> | 2018-08-27 14:51:54 -0700 |
|---|---|---|
| committer |   Theodore Ts'o <tytso@mit.edu> | 2018-09-01 12:51:54 -0400 |
| commit | 9b25436662d5fb4c66eb527ead53cab15f596ee0 (patch) | |
| tree | f81de29079d0cd3e4816cae947a0a3b0b3c4767a /Documentation | |
| parent | random: Make crng state queryable (diff) | |
| download | linux-dev-9b25436662d5fb4c66eb527ead53cab15f596ee0.tar.xz linux-dev-9b25436662d5fb4c66eb527ead53cab15f596ee0.zip | |
random: make CPU trust a boot parameter
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>
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 0c8f7889efa1..227c5c6fa4c1 100644 --- a/Documentation/admin-guide/kernel-parameters.txt +++ b/Documentation/admin-guide/kernel-parameters.txt @@ -3390,6 +3390,12 @@ 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] |