test/vhost: Fix. Allow user to define vm password in vhost tests.

Change-Id: I31f1037686144a515aafdf2bb8daa0924d49fb7f
Signed-off-by: Pawel Kaminski <pawelx.kaminski@intel.com>
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/466319
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>

test/vhost/common.sh

@@ -4,6 +4,7 @@
 TEST_DIR=$(readlink -f $rootdir/..)
 VM_DIR=$VHOST_DIR/vms
 TARGET_DIR=$VHOST_DIR/vhost
+VM_PASSWORD="root"
 
 #TODO: Move vhost_vm_image.qcow2 into VHOST_DIR on test systems.
 VM_IMAGE=$HOME/vhost_vm_image.qcow2
@@ -308,7 +309,7 @@ function vm_exec()
 	local vm_num="$1"
 	shift
 
-	sshpass -p root ssh \
+	sshpass -p "$VM_PASSWORD" ssh \
 		-o UserKnownHostsFile=/dev/null \
 		-o StrictHostKeyChecking=no \
 		-o User=root \
@@ -326,7 +327,7 @@ function vm_scp()
 	local vm_num="$1"
 	shift
 
-	sshpass -p root scp \
+	sshpass -p "$VM_PASSWORD" scp \
 		-o UserKnownHostsFile=/dev/null \
 		-o StrictHostKeyChecking=no \
 		-o User=root \

test/vhost/windows/windows_scsi_compliance.sh

@@ -45,6 +45,7 @@ done
 
 trap 'rm -f $aio_file; rm -rf $testdir/results; error_exit' SIGINT SIGTERM ERR
 
+VM_PASSWORD="$ssh_pass"
 mkdir -p $testdir/results
 dd if=/dev/zero of=$aio_file bs=1M count=512