From 8619f585387d022fd45b1fa153102f3409d9f144 Mon Sep 17 00:00:00 2001
From: Coiby Xu <coxu@redhat.com>
Date: Mar 24 2021 07:51:02 +0000
Subject: selftest: replace qemu-kvm with one based on dracut's run-qemu


Dracut's run-qemu could find  which virtualization technology to the
user in the order of kvm, kqemu, userspace. Using run-qemu could allow
running tests where qemu-kvm doesn't exist.

Signed-off-by: Coiby Xu <coxu@redhat.com>
Acked-by: Kairui Song <kasong@redhat.com>

---

diff --git a/tests/scripts/run-qemu b/tests/scripts/run-qemu
new file mode 100755
index 0000000..836387a
--- /dev/null
+++ b/tests/scripts/run-qemu
@@ -0,0 +1,23 @@
+#!/bin/bash
+# Check which virtualization technology to use
+# We prefer kvm, kqemu, userspace in that order.
+
+# This script is based on https://github.com/dracutdevs/dracut/blob/master/test/run-qemu
+
+export PATH=/sbin:/bin:/usr/sbin:/usr/bin
+
+[[ -x /usr/bin/qemu ]] && BIN=/usr/bin/qemu && ARGS="-cpu max"
+$(lsmod | grep -q '^kqemu ') && BIN=/usr/bin/qemu && ARGS="-kernel-kqemu -cpu host"
+[[ -c /dev/kvm && -x /usr/bin/kvm ]] && BIN=/usr/bin/kvm && ARGS="-cpu host"
+[[ -c /dev/kvm && -x /usr/bin/qemu-kvm ]] && BIN=/usr/bin/qemu-kvm && ARGS="-cpu host"
+[[ -c /dev/kvm && -x /usr/libexec/qemu-kvm ]] && BIN=/usr/libexec/qemu-kvm && ARGS="-cpu host"
+[[ -x /usr/bin/qemu-system-$(uname -i) ]] && BIN=/usr/bin/qemu-system-$(uname -i) && ARGS="-cpu max"
+[[ -c /dev/kvm && -x /usr/bin/qemu-system-$(uname -i) ]] && BIN=/usr/bin/qemu-system-$(uname -i) && ARGS="-enable-kvm -cpu host"
+
+[[ $BIN ]] || {
+   echo "Could not find a working KVM or QEMU to test with!" >&2
+   echo "Please install kvm or qemu." >&2
+   exit 1
+}
+
+exec $BIN $ARGS "$@"
diff --git a/tests/scripts/test-lib.sh b/tests/scripts/test-lib.sh
index aff5cd3..f8a2249 100644
--- a/tests/scripts/test-lib.sh
+++ b/tests/scripts/test-lib.sh
@@ -89,7 +89,7 @@ run_test_sync() {
 	local qemu_cmd=$(get_test_qemu_cmd $1)
 
 	if [ -n "$qemu_cmd" ]; then
-		timeout --foreground 10m qemu-kvm $(get_test_qemu_cmd $1)
+		timeout --foreground 10m $BASEDIR/run-qemu $(get_test_qemu_cmd $1)
 	else
 		echo "error: test qemu command line is not configured" > /dev/stderr
 		return 1