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+
+This tool does one thing only: it modifies the kernel parameters
+used in a .axf file that is turn used by the ARM FAST or Foundation
+models to run an ARMv8 platform simulation.
+
+The .axf file in this directory is as it says, useless. It will not
+boot. It is only used as a template to create an axf file (sans
+initrd) that _will_ boot.
+
+The ./paxf program takes two parameters: the first is the name to use
+for the output axf file; the second is the string to use for the kernel
+parameters in the axf file. It also assumes that linux-system-useless.axf
+is in ./.
+
+To build it:
+
+ $ make
+
+To run it:
+
+ $ ./paxf <output-file> <kernel-parameters>
+
+For example, to recreate the axf file I use for an NFS root:
+
+ $ ./paxf foo.axf "root=/dev/nfs nfsroot=172.17.100.1:/home/ahs3/armv8-model/nfs-root,tcp,v3 rw ip=172.17.100.2:172.17.100.1:172.17.100.1:255.255.255.0:aarch64:eth0:none console=ttyAMA0 mem=2G earlyprintk debug maxcpus=2"
+
+