arm64: versal-net: Enable the config CMD_KASLRSEED

Kernel Address Space Layout Randomization (KASLR) is a hardening
feature that aims to make it more difficult to take advantage
of known exploits in the kernel, by placing kernel data
structures at a random address at each boot.The bootloader
supports randomizing the virtual address at which the kernel image
is loaded. The bootloader must provide entropy by passing a random
u64 value in the /chosen/kaslr-seed device tree node.
When we run "kaslrseed" command from U-Boot, the bootloader will
genarate the kaslr-seed and update the /chosen/kaslr-seed DT property.

Signed-off-by: Venkatesh Yadav Abbarapu <venkatesh.abbarapu@amd.com>
Link: https://lore.kernel.org/r/20230831031658.2203-4-venkatesh.abbarapu@amd.com
Signed-off-by: Michal Simek <michal.simek@amd.com>

diff --git a/configs/xilinx_versal_net_virt_defconfig b/configs/xilinx_versal_net_virt_defconfig
index 9208e289c7a2b57a1ece167af79f2351b64e9d08..62322af458d691a3a674846b76de457ccddbd1b4 100644 (file)
--- a/configs/xilinx_versal_net_virt_defconfig
+++ b/configs/xilinx_versal_net_virt_defconfig
@@ -50,6 +50,7 @@ CONFIG_CMD_CACHE=y
 CONFIG_CMD_EFIDEBUG=y
 CONFIG_CMD_TIME=y
 CONFIG_CMD_RNG=y
+CONFIG_CMD_KASLRSEED=y
 CONFIG_CMD_TIMER=y
 CONFIG_CMD_SMC=y
 CONFIG_CMD_TPM=y