1 files changed, 83 insertions, 0 deletions
diff --git a/src/VBox/Devices/EFI/Firmware/MdeModulePkg/Bus/Pci/PciBusDxe/PciDriverOverride.h b/src/VBox/Devices/EFI/Firmware/MdeModulePkg/Bus/Pci/PciBusDxe/PciDriverOverride.h
new file mode 100644
index 00000000..ab058fa7
--- /dev/null
+++ b/src/VBox/Devices/EFI/Firmware/MdeModulePkg/Bus/Pci/PciBusDxe/PciDriverOverride.h
@@ -0,0 +1,83 @@
+/** @file
+  Functions declaration for Bus Specific Driver Override protocol.
+
+Copyright (c) 2006 - 2019, Intel Corporation. All rights reserved.<BR>
+SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+
+#ifndef _EFI_PCI_DRIVER_OVERRRIDE_H_
+#define _EFI_PCI_DRIVER_OVERRRIDE_H_
+
+#define DRIVER_OVERRIDE_SIGNATURE SIGNATURE_32 ('d', 'r', 'o', 'v')
+
+//
+// PCI driver override driver image list
+//
+typedef struct {
+  UINT32                   Signature;
+  LIST_ENTRY               Link;
+  EFI_HANDLE               DriverImageHandle;
+  EFI_DEVICE_PATH_PROTOCOL *DriverImagePath;
+} PCI_DRIVER_OVERRIDE_LIST;
+
+
+#define DRIVER_OVERRIDE_FROM_LINK(a) \
+  CR (a, PCI_DRIVER_OVERRIDE_LIST, Link, DRIVER_OVERRIDE_SIGNATURE)
+
+/**
+  Initializes a PCI Driver Override Instance.
+
+  @param  PciIoDevice   PCI Device instance.
+
+**/
+VOID
+InitializePciDriverOverrideInstance (
+  IN OUT PCI_IO_DEVICE          *PciIoDevice
+  );
+
+/**
+  Add an overriding driver image.
+
+  @param PciIoDevice        Instance of PciIo device.
+  @param DriverImageHandle  Image handle of newly added driver image.
+  @param DriverImagePath    Device path of newly added driver image.
+
+  @retval EFI_SUCCESS          Successfully added driver.
+  @retval EFI_OUT_OF_RESOURCES No memory resource for new driver instance.
+  @retval other                Some error occurred when locating gEfiLoadedImageProtocolGuid.
+
+**/
+EFI_STATUS
+AddDriver (
+  IN PCI_IO_DEVICE            *PciIoDevice,
+  IN EFI_HANDLE               DriverImageHandle,
+  IN EFI_DEVICE_PATH_PROTOCOL *DriverImagePath
+  );
+
+
+/**
+  Uses a bus specific algorithm to retrieve a driver image handle for a controller.
+
+  @param  This                  A pointer to the EFI_BUS_SPECIFIC_DRIVER_OVERRIDE_PROTOCOL instance.
+  @param  DriverImageHandle     On input, a pointer to the previous driver image handle returned
+                                by GetDriver(). On output, a pointer to the next driver
+                                image handle. Passing in a NULL, will return the first driver
+                                image handle.
+
+  @retval EFI_SUCCESS           A bus specific override driver is returned in DriverImageHandle.
+  @retval EFI_NOT_FOUND         The end of the list of override drivers was reached.
+                                A bus specific override driver is not returned in DriverImageHandle.
+  @retval EFI_INVALID_PARAMETER DriverImageHandle is not a handle that was returned on a
+                                previous call to GetDriver().
+
+**/
+EFI_STATUS
+EFIAPI
+GetDriver (
+  IN EFI_BUS_SPECIFIC_DRIVER_OVERRIDE_PROTOCOL              *This,
+  IN OUT EFI_HANDLE                                         *DriverImageHandle
+  );
+
+#endif