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259d87146b
The RamDiskDxe driver in MdeModulePkg now will use EFI_ACPI_TABLE_PROTOCOL and EFI_ACPI_SDT_PROTOCOL during reporting RAM disks to NVDIMM Firmware Interface Table (NFIT). A Pcd 'PcdInstallAcpiSdtProtocol' controls whether the EFI_ACPI_SDT_PROTOCOL will be produced. Its default value is set to FALSE in MdeModulePkg. To make the NFIT reporting feature working properly under OVMF, the patch will set the Pcd to TRUE in OVMF DSC files. Also, the RamDiskDxe driver will sometimes report a NVDIMM Root Device using ASL code which is put in a Secondary System Description Table (SSDT) according to the ACPI 6.1 spec. Locating the SSDT requires modifying the [Rule.Common.DXE_DRIVER] field in OVMF FDF files. Cc: Laszlo Ersek <lersek@redhat.com> Cc: Jordan Justen <jordan.l.justen@intel.com> Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Hao Wu <hao.a.wu@intel.com> Reviewed-by: Laszlo Ersek <lersek@redhat.com> Reviewed-by: Samer El-Haj-Mahmoud <elhaj@hpe.com>