[Feature] add GA346 baseline version

Change-Id: Ic62933698569507dcf98240cdf5d9931ae34348f
diff --git a/src/kernel/linux/v4.19/tools/virtio/ringtest/README b/src/kernel/linux/v4.19/tools/virtio/ringtest/README
new file mode 100644
index 0000000..d83707a
--- /dev/null
+++ b/src/kernel/linux/v4.19/tools/virtio/ringtest/README
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+Partial implementation of various ring layouts, useful to tune virtio design.
+Uses shared memory heavily.
+
+Typical use:
+
+# sh run-on-all.sh perf stat -r 10 --log-fd 1 -- ./ring