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| author | Cédric Le Goater <clg@kaod.org> | 2018-10-12 10:07:23 +0200 |
|---|---|---|
| committer | Joel Stanley <joel@jms.id.au> | 2019-03-20 15:13:33 +1030 |
| commit | 4929e6cd69a3fa17781a19547526e124f12ef818 (patch) | |
| tree | dd690ab9f4eded5274ad08f6f00d2d8952e54826 /Documentation | |
| parent | 4e58371dea4a6ea7db80ff0447760d5f723e2798 (diff) | |
| download | blackbird-obmc-linux-4929e6cd69a3fa17781a19547526e124f12ef818.tar.gz blackbird-obmc-linux-4929e6cd69a3fa17781a19547526e124f12ef818.zip | |
/dev/mem: add a devmem kernel parameter to activate the device
For security reasons, some configuration needs to run without /dev/mem
but on some occasions, to debug HW for instance, it's still useful to
be able to reboot the system with access to physical memory.
Add a kernel parameter which activates the /dev/mem device only when
'mem.devmem' is enabled.
OpenBMC-Staging-Count: 3
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Joel Stanley <joel@jms.id.au>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/admin-guide/kernel-parameters.txt | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt index 858b6c0b9a15..b82566d85360 100644 --- a/Documentation/admin-guide/kernel-parameters.txt +++ b/Documentation/admin-guide/kernel-parameters.txt @@ -2475,6 +2475,9 @@ deep - Suspend-To-RAM or equivalent (if supported) See Documentation/admin-guide/pm/sleep-states.rst. + mem.devmem= Activate the /dev/mem device + Format: <bool> (1/Y/y=enable, 0/N/n=disable) + meye.*= [HW] Set MotionEye Camera parameters See Documentation/media/v4l-drivers/meye.rst. |
