diff --git a/Makefile b/Makefile
index 608df40..bfc0f29 100644
--- a/Makefile
+++ b/Makefile
@@ -3,6 +3,8 @@ GIT_REF := $(shell git log -1 --format=%H)
 GIT_AUTHOR := $(shell git log -1 --format=%an)
 GIT_PUBKEY := $(shell git log -1 --format=%GK)
 GIT_TIMESTAMP := $(shell git log -1 --format=%cd --date=iso)
+EFI := false
+,:=,
 export
 
 ## Use env vars from latest release when reproducing
@@ -68,8 +70,14 @@ vm: out/dev-shell.digest out/airgap.iso out/sdcard.img
 			-device sd-card,drive=external \
 			-drive id=external,if=none,format=raw,file=out/sdcard.img \
 			-device usb-storage,drive=usbdrive \
-			-drive id=usbdrive,if=none,format=raw,file=out/airgap.iso \
-			-boot order=c \
+			$(if $(filter $(EFI),true) ,\
+				-bios /usr/share/ovmf/OVMF.fd \
+				-drive id=boot$(,)if=virtio$(,)format=raw$(,)file=out/airgap.iso \
+			,\
+				-drive id=usbdrive,if=none,format=raw,file=out/airgap.iso \
+				-boot order=c \
+			) \
+			$(if (,$(wildcard /dev/kvm)),,-cpu host --accel kvm) \
 			-nographic; \
 		"