accel/hvf: Report HV_DENIED error

On MacOS 11 and subsequent versions, in case the resulting binary is not
signed with the proper entitlement, handle and report the HV_DENIED
error.

Signed-off-by: Antonio Caggiano <quic_acaggian@quicinc.com>
Message-Id: <20230608123014.28715-1-quic_acaggian@quicinc.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>

accel/hvf/hvf-all.c

@@ -38,6 +38,12 @@ void assert_hvf_ok(hv_return_t ret)
     case HV_UNSUPPORTED:
         error_report("Error: HV_UNSUPPORTED");
         break;
+#if defined(MAC_OS_VERSION_11_0) && \
+    MAC_OS_X_VERSION_MIN_REQUIRED >= MAC_OS_VERSION_11_0
+    case HV_DENIED:
+        error_report("Error: HV_DENIED");
+        break;
+#endif
     default:
         error_report("Unknown Error");
     }