Don't check for /dev/kvm etc

Check the properties instead (capability not implementation).

Bug: 218276733
Test: atest VirtualizationTestCases.64
Change-Id: Ifa5d463effb09b30d0166c0bfde13da86978d90c

tests/common.cc

@@ -14,14 +14,22 @@
  * limitations under the License.
  */
 
+#include <android/sysprop/HypervisorProperties.sysprop.h>
+
 #include "virt/VirtualizationTest.h"
 
+using android::sysprop::HypervisorProperties::hypervisor_protected_vm_supported;
+using android::sysprop::HypervisorProperties::hypervisor_vm_supported;
+
 namespace {
 
 bool isVmSupported() {
-    const std::array<const char *, 4> needed_files = {
-            "/dev/kvm",
-            "/dev/vhost-vsock",
+    bool has_capability = hypervisor_vm_supported().value_or(false) ||
+            hypervisor_protected_vm_supported().value_or(false);
+    if (!has_capability) {
+        return false;
+    }
+    const std::array<const char *, 2> needed_files = {
             "/apex/com.android.virt/bin/crosvm",
             "/apex/com.android.virt/bin/virtualizationservice",
     };