On 4/18/24 6:21 PM, Tim Harvey wrote:
On Fri, Jan 19, 2024 at 4:36 PM Marek Vasut <ma...@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 <ma...@denx.de>
---
Cc: Fabio Estevam <feste...@denx.de>
Cc: Stefano Babic <sba...@denx.de>
Cc: u-b...@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!
Did you enable CAAM and ARCH_MISC_INIT on your machine, to initialize
CAAM in SPL ?
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.
No, but see above, I suspect that might be it, see also
1f908b1898bd ("ARM: imx8m: Deduplicate CAAM init with arch_misc_init()
call")
