Compatibility drivers

Windows OS X (Mavericks) OS X (Yosemite) MacOS (El Capitan) macOS (High Sierra) macOS (Sierra) macOS (Mojave) macOS (Catalina).  · There are four steps to verify driver compatibility: Use Driver Verifier with the new Code Integrity compatibility checks enabled. Test the driver on a system with virtualization-based isolation of Code Integrity enabled. Run the HyperVisor Code Integrity Readiness Test in the Windows HLK. Use the.  · To implement HVCI compatible code, make sure your driver code does the following: Opts in to NX by default; Uses NX APIs/flags for memory allocation (NonPagedPoolNx) Does not use sections that are both writable and executable; Does not attempt to directly modify executable system memory; Does not use dynamic code in kernel.

To implement HVCI compatible code, make sure your driver code does the following: Opts in to NX by default; Uses NX APIs/flags for memory allocation (NonPagedPoolNx) Does not use sections that are both writable and executable; Does not attempt to directly modify executable system memory; Does not use dynamic code in kernel. Many drivers will already be compatible. If using standard settings with the old versions of the WDK and Visual Studio, a known issue is that the INIT section is marked as RWX. In Windows 10, however, the W will automatically be stripped, so if this is the only issue then the driver will be compatible. Troubleshoot compatibility feature allows older drivers to work with modern versions of Windows by making the drivers believe that it is being installed on a supported version of Windows. For more information, see Andre Da Costa's How to: Install and Update Hardware Drivers in Windows Let us know if you need further assistance.

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