diff --git a/emulation/qemu-q35/4.6-22-gecf3489/2017-05-03T18_14_05Z/revision.txt b/emulation/qemu-q35/4.6-22-gecf3489/2017-05-03T18_14_05Z/revision.txt
new file mode 100644
index 0000000..246fa38
--- /dev/null
+++ b/emulation/qemu-q35/4.6-22-gecf3489/2017-05-03T18_14_05Z/revision.txt
@@ -0,0 +1,5 @@
+Local revision: ecf3489
+Tagged revision: 4.6-22-gecf3489
+Upstream revision: ecf3489
+Upstream URL: review.coreboot.org:29418/coreboot
+Timestamp: 2017-05-03T18_14_05Z