improve nyx docs

1 files changed, 11 insertions, 11 deletions

diff --git a/nyx_mode/README.md b/nyx_mode/README.md
index aee9879e..7a2a8e6c 100644
--- a/nyx_mode/README.md
+++ b/nyx_mode/README.md
@@ -84,9 +84,17 @@ Then the final step: we generate the Nyx package configuration:
 python3 nyx_mode/packer/packer/nyx_config_gen.py PACKAGE-DIRECTORY Kernel
 ```
 
-
 ## Fuzzing with Nyx mode
 
+Note that you need to load the kvm kernel modules for Nyx:
+```
+sudo modprobe -r kvm-intel
+sudo modprobe -r kvm
+sudo modprobe  kvm enable_vmware_backdoor=y
+sudo modprobe  kvm-intel
+cat /sys/module/kvm/parameters/enable_vmware_backdoor | grep -q Y && echi OK || echo KVM module problem
+```
+
 All the hard parts are done, fuzzing with Nyx mode is easy - just supply the
 `PACKAGE-DIRECTORY` as fuzzing target and specify the `-X` option to afl-fuzz:
 
@@ -94,16 +102,8 @@ All the hard parts are done, fuzzing with Nyx mode is easy - just supply the
 afl-fuzz -i in -o out -X -- ./PACKAGE-DIRECTORY
 ```
 
-Most likely your first run will fail because the Linux modules have to be
-specially set up, but afl-fuzz will tell you this on startup and how to rectify
-the situation:
-
-```
-sudo modprobe -r kvm-intel # or kvm-amd for AMD processors
-sudo modprobe -r kvm
-sudo modprobe kvm enable_vmware_backdoor=y
-sudo modprobe kvm-intel # or kvm-amd for AMD processors
-```
+If you get a forkserver error upon starting then you did not load the Linux
+kvm kernel modules, see above.
 
 If you want to fuzz in parallel (and you should!), then this has to be done in a
 special way: