OvmfPkg: Apply uncrustify changes

[mirror_edk2.git] / OvmfPkg / XenIoPvhDxe / XenIoPvhDxe.c

/** @file\r
\r
  Driver for the XenIo protocol\r
\r
  This driver simply allocate space for the grant tables.\r
\r
  Copyright (c) 2019, Citrix Systems, Inc.\r
\r
  SPDX-License-Identifier: BSD-2-Clause-Patent\r
\r
**/\r
\r
#include <Library/MemoryAllocationLib.h>\r
#include <Library/PcdLib.h>\r
#include <Library/XenIoMmioLib.h>\r
#include <Library/XenPlatformLib.h>\r
\r
EFI_STATUS\r
EFIAPI\r
InitializeXenIoPvhDxe (\r
  IN EFI_HANDLE        ImageHandle,\r
  IN EFI_SYSTEM_TABLE  *SystemTable\r
  )\r
{\r
  VOID        *Allocation;\r
  EFI_STATUS  Status;\r
  EFI_HANDLE  XenIoHandle;\r
\r
  Allocation  = NULL;\r
  XenIoHandle = NULL;\r
\r
  if (!XenPvhDetected ()) {\r
    return EFI_UNSUPPORTED;\r
  }\r
\r
  Allocation = AllocateReservedPages (FixedPcdGet32 (PcdXenGrantFrames));\r
  if (Allocation == NULL) {\r
    Status = EFI_OUT_OF_RESOURCES;\r
    goto Error;\r
  }\r
\r
  Status = XenIoMmioInstall (&XenIoHandle, (UINTN)Allocation);\r
  if (EFI_ERROR (Status)) {\r
    goto Error;\r
  }\r
\r
  return EFI_SUCCESS;\r
\r
Error:\r
  if (Allocation != NULL) {\r
    FreePages (Allocation, FixedPcdGet32 (PcdXenGrantFrames));\r
  }\r
\r
  return Status;\r
}\r