From c5d15db173ccbaa72b0b75d4a5afb784a99d4504 Mon Sep 17 00:00:00 2001 From: Venkatesh Yadav Abbarapu <venkatesh.abbarapu@amd.com> Date: Thu, 31 Aug 2023 08:56:12 +0530 Subject: [PATCH] arm64: versal: 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/20230831032612.2729-4-venkatesh.abbarapu@amd.com Signed-off-by: Michal Simek <michal.simek@amd.com> --- configs/xilinx_versal_virt_defconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/configs/xilinx_versal_virt_defconfig b/configs/xilinx_versal_virt_defconfig index 5d5a23b1a3..89566c7d52 100644 --- a/configs/xilinx_versal_virt_defconfig +++ b/configs/xilinx_versal_virt_defconfig @@ -51,6 +51,7 @@ 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 -- 2.39.5