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

[mirror_edk2.git] / OvmfPkg / XenBusDxe / XenBusDxe.h

/** @file\r
  Function declaration and internal data for XenBusDxe.\r
\r
  Copyright (C) 2014, Citrix Ltd.\r
\r
  SPDX-License-Identifier: BSD-2-Clause-Patent\r
\r
**/\r
\r
#ifndef __EFI_XENBUS_DXE_H__\r
#define __EFI_XENBUS_DXE_H__\r
\r
#include <Uefi.h>\r
\r
//\r
// Libraries\r
//\r
#include <Library/UefiBootServicesTableLib.h>\r
#include <Library/MemoryAllocationLib.h>\r
#include <Library/BaseMemoryLib.h>\r
#include <Library/BaseLib.h>\r
#include <Library/UefiLib.h>\r
#include <Library/DevicePathLib.h>\r
#include <Library/DebugLib.h>\r
#include <Library/PcdLib.h>\r
\r
//\r
// UEFI Driver Model Protocols\r
//\r
#include <Protocol/DriverBinding.h>\r
\r
//\r
// Consumed Protocols\r
//\r
#include <Protocol/XenIo.h>\r
\r
//\r
// Produced Protocols\r
//\r
#include <Protocol/XenBus.h>\r
\r
//\r
// Driver Version\r
//\r
#define XENBUS_DXE_VERSION  0x00000010\r
\r
//\r
// Protocol instances\r
//\r
extern EFI_DRIVER_BINDING_PROTOCOL   gXenBusDxeDriverBinding;\r
extern EFI_COMPONENT_NAME2_PROTOCOL  gXenBusDxeComponentName2;\r
extern EFI_COMPONENT_NAME_PROTOCOL   gXenBusDxeComponentName;\r
\r
//\r
// Include files with function prototypes\r
//\r
#include "DriverBinding.h"\r
#include "ComponentName.h"\r
\r
//\r
// Other stuff\r
//\r
#include <IndustryStandard/Xen/xen.h>\r
\r
typedef struct _XENBUS_DEVICE_PATH  XENBUS_DEVICE_PATH;\r
typedef struct _XENBUS_DEVICE       XENBUS_DEVICE;\r
\r
// Have the state of the driver.\r
#define XENBUS_DEVICE_SIGNATURE  SIGNATURE_32 ('X','B','s','t')\r
struct _XENBUS_DEVICE {\r
  UINT32                         Signature;\r
  EFI_DRIVER_BINDING_PROTOCOL    *This;\r
  EFI_HANDLE                     ControllerHandle;\r
  XENIO_PROTOCOL                 *XenIo;\r
  EFI_EVENT                      ExitBootEvent;\r
  EFI_DEVICE_PATH_PROTOCOL       *DevicePath;\r
  LIST_ENTRY                     ChildList;\r
\r
  shared_info_t                  *SharedInfo;\r
};\r
\r
// There is one of this struct allocated for every child.\r
#define XENBUS_PRIVATE_DATA_SIGNATURE  SIGNATURE_32 ('X', 'B', 'p', 'd')\r
typedef struct {\r
  UINTN                 Signature;\r
  LIST_ENTRY            Link;\r
  EFI_HANDLE            Handle;\r
  XENBUS_PROTOCOL       XenBusIo;\r
  XENBUS_DEVICE         *Dev;\r
  XENBUS_DEVICE_PATH    *DevicePath;\r
} XENBUS_PRIVATE_DATA;\r
\r
#define XENBUS_PRIVATE_DATA_FROM_THIS(a) \\r
  CR (a, XENBUS_PRIVATE_DATA, XenBusIo, XENBUS_PRIVATE_DATA_SIGNATURE)\r
#define XENBUS_PRIVATE_DATA_FROM_LINK(a) \\r
  CR (a, XENBUS_PRIVATE_DATA, Link, XENBUS_PRIVATE_DATA_SIGNATURE)\r
\r
/*\r
 * Helpers\r
 */\r
\r
/**\r
  Atomically test and clear a bit.\r
\r
  @param Bit      Bit index to test in *Address\r
  @param Address  The Address to the buffer that contain the bit to test.\r
\r
  @return Value of the Bit before it was cleared.\r
**/\r
INT32\r
EFIAPI\r
TestAndClearBit (\r
  IN INT32  Bit,\r
  IN VOID   *Address\r
  );\r
\r
CHAR8 *\r
AsciiStrDup (\r
  IN CONST CHAR8  *Str\r
  );\r
\r
#endif\r