diff options
| author | Chris Morgan <[email protected]> | 2021-08-25 11:22:57 -0500 |
|---|---|---|
| committer | Kever Yang <[email protected]> | 2021-12-24 10:54:56 +0800 |
| commit | fe3dde3e7b0c01d081140fcb28e317a688440fbb (patch) | |
| tree | f73572b0c5f863f55d6ac2efd3ddf81610cb696f /cmd/Kconfig | |
| parent | 734ad933766f0dbbeafe1b27211686940a5e6d16 (diff) | |
cmd: kaslrseed: add command to generate value from hwrng
Allow the kaslr-seed value in the chosen node to be set from a hardware
rng source.
Tested on a Rockchip PX30 (Odroid Go Advance), you must have loaded
the devicetree first and prepared it for editing. On my device the
workflow goes as follows:
setenv dtb_loadaddr "0x01f00000"
load mmc 0:1 ${dtb_loadaddr} rk3326-odroid-go2.dtb
fdt addr ${dtb_loadaddr}
fdt resize
kaslrseed
and the output can be seen here:
fdt print /chosen
chosen {
kaslr-seed = <0x6f61df74 0x6f7b996c>;
stdout-path = "serial2:115200n8";
};
Signed-off-by: Chris Morgan <[email protected]>
Reviewed-by: Kever Yang <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
Diffstat (limited to 'cmd/Kconfig')
| -rw-r--r-- | cmd/Kconfig | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/cmd/Kconfig b/cmd/Kconfig index 5b30b13e438..02c298fdbe4 100644 --- a/cmd/Kconfig +++ b/cmd/Kconfig @@ -1814,6 +1814,13 @@ config CMD_RNG help Print bytes from the hardware random number generator. +config CMD_KASLRSEED + bool "kaslrseed" + depends on DM_RNG + help + Set the kaslr-seed in the chosen node with entropy provided by a + hardware random number generator. + config CMD_SLEEP bool "sleep" default y |