Webform display for specific roles
As per my knowledge you need to do little customization to achieve this. 


Check the roles
Perform your require action(permission)


code to check logged in user has both roles?

global $user;
$roleA = 'administrator';
$roleB = 'user1';
$roleC = 'some other role';
$user_roles = array_values($user-&gt;roles);

    if (in_array($roleA, $user_roles) &amp;&amp; in_array($roleC, $user_roles)) {
      // Do something.
    }
    elseif (in_array($roleA, $user_roles) &amp;&amp; in_array($roleB, $user_roles)) {
      // Do something.
    }
    elseif (in_array($roleB, $user_roles) &amp;&amp; in_array($roleC, $user_roles)) {
      // Do something.
    }


Second option.

You can look Rules module.