[kvm-unit-tests PATCH v4 08/13] scripts: Add KVMTOOL environment variable for kvmtool binary path

[Alexandru Elisei]

kvmtool is often used for prototyping new features, and a developer might
not want to install it system-wide. Add a KVMTOOL environment variable to
make it easier for tests to use a binary not in $PATH.

Reviewed-by: Andrew Jones <andrew.jones at linux.dev>
Reviewed-by: Shaoqin Huang <shahuang at redhat.com>
Signed-off-by: Alexandru Elisei <alexandru.elisei at arm.com>
---
 run_tests.sh          | 1 +
 scripts/arch-run.bash | 3 ++-
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/run_tests.sh b/run_tests.sh
index dd9d27377905..150a06a91064 100755
--- a/run_tests.sh
+++ b/run_tests.sh
@@ -36,6 +36,7 @@ The following environment variables are used:
     TIMEOUT         Timeout duration for the timeout(1) command
     CHECK           Overwrites the 'check' unit test parameter (see
                     docs/unittests.txt)
+    KVMTOOL         Path to kvmtool binary for ARCH-run
 EOF
 }
 
diff --git a/scripts/arch-run.bash b/scripts/arch-run.bash
index 354ce80fe3fa..c440f2162bac 100644
--- a/scripts/arch-run.bash
+++ b/scripts/arch-run.bash
@@ -369,7 +369,7 @@ search_kvmtool_binary ()
 {
 	local kvmtoolcmd kvmtool
 
-	for kvmtoolcmd in lkvm vm lkvm-static; do
+	for kvmtoolcmd in ${KVMTOOL:-lkvm vm lkvm-static}; do
 		if "$kvmtoolcmd" --help 2>/dev/null| grep -q 'The most commonly used'; then
 			kvmtool="$kvmtoolcmd"
 			break
@@ -378,6 +378,7 @@ search_kvmtool_binary ()
 
 	if [ -z "$kvmtool" ]; then
 		echo "A kvmtool binary was not found." >&2
+		echo "You can set a custom location by using the KVMTOOL=<path> environment variable." >&2
 		return 2
 	fi
 
-- 
2.50.0