diff --git a/Makefile b/Makefile
index 82e97b1..2a0f1d2 100644
--- a/Makefile
+++ b/Makefile
@@ -1,4 +1,4 @@
-ARCH?=arm
+ARCH?=x86_64
 
 QEMU=qemu-system-$(ARCH)
 QEMUFLAGS=-serial mon:stdio -d guest_errors
diff --git a/rust b/rust
index b72fa8c..a23064a 160000
--- a/rust
+++ b/rust
@@ -1 +1 @@
-Subproject commit b72fa8ca95c02e4b44b216a425fd563ad2ef58bb
+Subproject commit a23064af5ec7f52b287e2c60823fed92a4763502