Changeset 98644 in vbox for trunk/src/VBox/HostDrivers

Timestamp:

Feb 20, 2023 12:05:56 PM (2 years ago)

Author:

vboxsync

Message:

VMM,SUPLib: Adjustments for running tstPDMQueue in driverless mode on hardened windows builds. This adds a fFlags parameter to VMR3Create and defines VMCREATE_F_DRIVERLESS, allowing it to switch between default and driverless suplib initialization. The default CFGM config constructor was amended to enable the IEM fallback option by default (only relevant to amd64/x86).

File:

• trunk/src/VBox/HostDrivers/Support/win/SUPLib-win.cpp (modified) (2 diffs)

trunk/src/VBox/HostDrivers/Support/win/SUPLib-win.cpp

@@ -151 +151 @@
 #endif
     }
+
+#if !defined(IN_SUP_HARDENED_R3)
+    /*
+     * Driverless?
+     */
+    if (fFlags & SUPR3INIT_F_DRIVERLESS)
+    {
+        pThis->fDriverless = true;
+        return VINF_SUCCESS;
+    }
+#endif
 
     /*
@@ -274 +285 @@
                 pErrInfo->pszMsg[0] = '\0';
         }
+
+        /*
+         * Do fallback.
+         */
+        if (   (fFlags & SUPR3INIT_F_DRIVERLESS_MASK)
+            && rcNt != -1 /** @todo */ )
+        {
+            LogRel(("Failed to open '%.*ls' rc=%Rrc rcNt=%#x - Switching to driverless mode.\n",
+                    NtName.Length / sizeof(WCHAR), NtName.Buffer, rc, rcNt));
+            pThis->fDriverless = true;
+            return VINF_SUCCESS;
+        }
+
 #else
         RT_NOREF1(penmWhat);