[kvm-unit-tests PATCH v3 11/16] scripts: Add KVMTOOL environment variable for kvmtool binary path

[Andrew Jones]

On Wed, May 07, 2025 at 04:12:51PM +0100, Alexandru Elisei wrote:
> 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.
> 
> 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 8cf67e4f3b51..d4fc7116abbe 100644
> --- a/scripts/arch-run.bash
> +++ b/scripts/arch-run.bash
> @@ -372,7 +372,7 @@ 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="$kvmtoolcmd"
>  			break
> @@ -381,6 +381,7 @@ search_kvmtool_binary ()
>  
>  	if [ -z "$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
>  
> -- 
> 2.49.0
>

Reviewed-by: Andrew Jones <andrew.jones at linux.dev>