VfioIgdPkg - EFI drivers supporting IGD passthrough

The VfioIgdPkg repository provides EFI DXE drivers supporting Intel Integrated Graphics (IGD) passthrough with VFIO and QEMU.

According to OVMF Bug #935, upstream OVMF is not willing to accept the IGD-specific code. As a alternative solution, a virtual PCI Option ROM is used to provide required DXE drivers for initializing IGD device in guest and GOP display output. For more details, refer QEMU docs/igd-assign.txt.

This reposititory consists of two DXE drivers:

• IgdAssignmentDxe (Required): Sets up OpRegion and BDSM (Base of Data Stolen Memory) register.
• PlatformGopPolicy (Optional): Implements the protocol required by proprietary Intel GOP driver.

Build

# Build IgdAssignmentDxe only (NO GOP display output)
$ ./build.sh igd.rom

# Build with IntelGopDriver (with GOP display output)
$ ./build.sh --gop /path/to/IntelGopDriver.efi igd.rom

IntelGopDriver can be extracted from host firmware using tools like UEFITool or UEFI BIOS Updater.