1 files changed, 41 insertions, 0 deletions
diff --git a/roms/edk2/OvmfPkg/Library/BasePciCapPciSegmentLib/BasePciCapPciSegmentLib.h b/roms/edk2/OvmfPkg/Library/BasePciCapPciSegmentLib/BasePciCapPciSegmentLib.h
new file mode 100644
index 000000000..a806bf320
--- /dev/null
+++ b/roms/edk2/OvmfPkg/Library/BasePciCapPciSegmentLib/BasePciCapPciSegmentLib.h
@@ -0,0 +1,41 @@
+/** @file
+  Plug a PciSegmentLib backend into PciCapLib, for config space access --
+  internal macro and type definitions.
+
+  Copyright (C) 2018, Red Hat, Inc.
+
+  SPDX-License-Identifier: BSD-2-Clause-Patent
+**/
+
+#ifndef __BASE_PCI_CAP_PCI_SEGMENT_LIB_H__
+#define __BASE_PCI_CAP_PCI_SEGMENT_LIB_H__
+
+#include <Library/DebugLib.h>
+
+#include <Library/PciCapPciSegmentLib.h>
+
+#define SEGMENT_DEV_SIG SIGNATURE_64 ('P', 'C', 'P', 'S', 'G', 'M', 'N', 'T')
+
+typedef struct {
+  //
+  // Signature identifying the derived class.
+  //
+  UINT64 Signature;
+  //
+  // Members added by the derived class, specific to the use of PciSegmentLib.
+  //
+  PCI_CAP_DOMAIN MaxDomain;
+  UINT16         SegmentNr;
+  UINT8          BusNr;
+  UINT8          DeviceNr;
+  UINT8          FunctionNr;
+  //
+  // Base class.
+  //
+  PCI_CAP_DEV BaseDevice;
+} SEGMENT_DEV;
+
+#define SEGMENT_DEV_FROM_PCI_CAP_DEV(PciDevice) \
+  CR (PciDevice, SEGMENT_DEV, BaseDevice, SEGMENT_DEV_SIG)
+
+#endif // __BASE_PCI_CAP_PCI_SEGMENT_LIB_H__