On Fri, Jan 19, 2024 at 4:36 PM Marek Vasut marex@denx.de wrote:
Linux 6.6.y with KASLR enabled would print the following message on boot: " KASLR disabled due to lack of seed " Enable the 'kaslrseed' command so a random number seed can be pulled from CAAM and inserted into the /chosen node 'kaslr-seed' property of Linux kernel DT before boot, thus letting KASLR work properly.
Signed-off-by: Marek Vasut marex@denx.de
Cc: Fabio Estevam festevam@denx.de Cc: Stefano Babic sbabic@denx.de Cc: u-boot@dh-electronics.com
configs/imx8mp_dhcom_pdk2_defconfig | 2 ++ configs/imx8mp_dhcom_pdk3_defconfig | 2 ++ 2 files changed, 4 insertions(+)
diff --git a/configs/imx8mp_dhcom_pdk2_defconfig b/configs/imx8mp_dhcom_pdk2_defconfig index 4f907ce00d0..23fb6272ad5 100644 --- a/configs/imx8mp_dhcom_pdk2_defconfig +++ b/configs/imx8mp_dhcom_pdk2_defconfig @@ -117,6 +117,7 @@ CONFIG_CMD_BOOTCOUNT=y CONFIG_CMD_CACHE=y CONFIG_CMD_TIME=y CONFIG_CMD_GETTIME=y +CONFIG_CMD_KASLRSEED=y CONFIG_CMD_SYSBOOT=y CONFIG_CMD_UUID=y CONFIG_CMD_PMIC=y @@ -223,6 +224,7 @@ CONFIG_DM_REGULATOR_PCA9450=y CONFIG_SPL_DM_REGULATOR_PCA9450=y CONFIG_DM_REGULATOR_FIXED=y CONFIG_DM_REGULATOR_GPIO=y +CONFIG_DM_RNG=y CONFIG_DM_RTC=y CONFIG_RTC_M41T62=y CONFIG_CONS_INDEX=2 diff --git a/configs/imx8mp_dhcom_pdk3_defconfig b/configs/imx8mp_dhcom_pdk3_defconfig index 9972e2d96b6..0d47c12b1f9 100644 --- a/configs/imx8mp_dhcom_pdk3_defconfig +++ b/configs/imx8mp_dhcom_pdk3_defconfig @@ -119,6 +119,7 @@ CONFIG_CMD_BOOTCOUNT=y CONFIG_CMD_CACHE=y CONFIG_CMD_TIME=y CONFIG_CMD_GETTIME=y +CONFIG_CMD_KASLRSEED=y CONFIG_CMD_SYSBOOT=y CONFIG_CMD_UUID=y CONFIG_CMD_PMIC=y @@ -228,6 +229,7 @@ CONFIG_DM_REGULATOR_PCA9450=y CONFIG_SPL_DM_REGULATOR_PCA9450=y CONFIG_DM_REGULATOR_FIXED=y CONFIG_DM_REGULATOR_GPIO=y +CONFIG_DM_RNG=y CONFIG_DM_RTC=y CONFIG_RTC_M41T62=y CONFIG_CONS_INDEX=2 -- 2.43.0
Hi Marek,
Sorry to respond to an old thread but I ran across this when enabling KALSR on my boards.
I have noticed when you enable DM_RNG on IMX8M that SPL fails to bind the driver: Couldn't bind rng driver (-96) SEC0: RNG instantiated
sec_init failed!
Didn't you encounter this as well? It seems to me that we may need to add the ability to disable DM_RNG in the SPL unless I'm missing something.
Best Regards,
Tim