FileVault

FileVault is macOS's builtin drive encryption, and with OpenCore support for it has been drastically improved compared to the legacy Clover drivers.

To start, you'll need the following .efi drivers:

OpenRuntime.efi
- OpenUsbKbDxe.efi for DuetPkg users(systems without UEFI support)

Do not use VirtualSMC.efi with OpenCore, its already baked inside. You do however require VirtualSMC.kext still

Setting in your config.plist:

Misc -> Boot
- PollAppleHotKeys set to YES(While not needed can be helpful)
Misc -> Security
- AuthRestart set to YES(Enables Authenticated restart for FileVault 2 so password is not required on reboot. Can be considered a security risk so optional)
NVRAM -> Add -> 4D1EDE05-38C7-4A6A-9CC6-4BCCA8B38C14
- UIScale set to 02 for high resolution small displays
UEFI -> Input
- KeySupport set to YES(Only when using OpenCore's builtin input, users of OpenUsbKbDxe should avoid)
UEFI -> Output
- ProvideConsoleGop to YES
UEFI -> ProtocolOverrides
- FirmwareVolume set to YES
- HashServices set to YES for Broadwell and older(this includes X99), this is needed for systems with broken SHA-1 hashing
UEFI -> Quirks
- RequestBootVarRouting set to YES
- ExitBootServicesDelay set to 3000-5000 if you receive Still waiting for root device on Aptio IV firmwares(Broadwell and older)

With all this, you can proceed to enable FileVault like on a normal mac under System Preferences -> Security & Privacy -> FileVault

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