UefiCpuPkg: Move AsmRelocateApLoopStart from Mpfuncs.nasm to AmdSev.nasm

[mirror_edk2.git] / OvmfPkg / Library / BasePciCapLib / BasePciCapLib.h

/** @file\r
  Work with PCI capabilities in PCI config space -- internal type definitions.\r
\r
  Copyright (C) 2018, Red Hat, Inc.\r
\r
  SPDX-License-Identifier: BSD-2-Clause-Patent\r
**/\r
\r
#ifndef __BASE_PCI_CAP_LIB_H__\r
#define __BASE_PCI_CAP_LIB_H__\r
\r
#include <Library/OrderedCollectionLib.h>\r
\r
#include <Library/PciCapLib.h>\r
\r
//\r
// Structure that uniquely identifies a capability instance and serves as key\r
// for insertion and lookup.\r
//\r
typedef struct {\r
  PCI_CAP_DOMAIN    Domain;\r
  UINT16            CapId;\r
  UINT16            Instance;\r
} PCI_CAP_KEY;\r
\r
//\r
// In Instance==0 PCI_CAP objects, store NumInstances directly. In Instance>0\r
// PCI_CAP objects, link Instance#0 of the same (Domain, CapId). This way\r
// NumInstances needs maintenance in one object only, per (Domain, CapId) pair.\r
//\r
typedef union {\r
  UINT16     NumInstances;\r
  PCI_CAP    *InstanceZero;\r
} PCI_CAP_NUM_INSTANCES;\r
\r
//\r
// Complete the incomplete PCI_CAP structure here.\r
//\r
struct PCI_CAP {\r
  PCI_CAP_KEY              Key;\r
  PCI_CAP_NUM_INSTANCES    NumInstancesUnion;\r
  UINT16                   Offset;\r
  UINT16                   MaxSizeHint;\r
  UINT8                    Version;\r
};\r
\r
//\r
// Complete the incomplete PCI_CAP_LIST structure here.\r
//\r
struct PCI_CAP_LIST {\r
  ORDERED_COLLECTION    *Capabilities;\r
};\r
\r
#endif // __BASE_PCI_CAP_LIB_H__\r