cmd: pxe_utils: sysboot: add kaslr-seed generation support
this will add kaslrseed keyword to sysboot lable,
when it set, it will request to genarate random number
from hwrng as kaslr-seed.
with this patch exlinux.conf label looks like
label l0
menu testing
linux /boot/vmlinuz-5.15.16-arm
initrd /boot/initramfs-5.15.16-arm.img
fdtdir /boot/dtbs/5.15.16-arm/
kaslrseed
append root=UUID=92ae1e50-eeeb-4c5b-8939-7e1cd6cfb059 ro
Tested on Khadas VIM with kernel 5.16.0-rc5-arm64, Debian 11.
Signed-off-by: Zhang Ning <zhangn1985@qq.com>
diff --git a/doc/README.pxe b/doc/README.pxe
index a1f0423..75caa01 100644
--- a/doc/README.pxe
+++ b/doc/README.pxe
@@ -163,6 +163,8 @@
and then applied in the load order to the fdt blob stored at the
address indicated in the fdt_addr_r environment variable.
+kaslrseed - set this label to request random number from hwrng as kaslr seed.
+
append <string> - use <string> as the kernel command line when booting this
label.