OvmfPkg/MemEncryptSevLib: find pages of initial SMRAM save state map

[mirror_edk2.git] / OvmfPkg / Include / Library / VirtioMmioDeviceLib.h

/** @file\r
\r
  Definitions for the VirtIo MMIO Device Library\r
\r
  Copyright (C) 2013, ARM Ltd\r
\r
  This program and the accompanying materials are licensed and made available\r
  under the terms and conditions of the BSD License which accompanies this\r
  distribution. The full text of the license may be found at\r
  http://opensource.org/licenses/bsd-license.php\r
\r
  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, WITHOUT\r
  WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
\r
**/\r
\r
#ifndef _VIRTIO_MMIO_DEVICE_LIB_H_\r
#define _VIRTIO_MMIO_DEVICE_LIB_H_\r
\r
/**\r
\r
  Initialize VirtIo Device and Install VIRTIO_DEVICE_PROTOCOL protocol\r
\r
  @param[in] BaseAddress  Base Address of the VirtIo MMIO Device\r
\r
  @param[in] Handle       Handle of the device the driver should be attached\r
                          to.\r
\r
  @retval EFI_SUCCESS           The VirtIo Device has been installed\r
                                successfully.\r
\r
  @retval EFI_OUT_OF_RESOURCES  The function failed to allocate memory required\r
                                by the Virtio MMIO device initialization.\r
\r
  @retval EFI_UNSUPPORTED       BaseAddress does not point to a VirtIo MMIO\r
                                device.\r
\r
  @return                       Status code returned by InstallProtocolInterface\r
                                Boot Service function.\r
\r
**/\r
EFI_STATUS\r
VirtioMmioInstallDevice (\r
  IN PHYSICAL_ADDRESS       BaseAddress,\r
  IN EFI_HANDLE             Handle\r
  );\r
\r
/**\r
\r
  Uninstall the VirtIo Device\r
\r
  @param[in] Handle       Handle of the device where the VirtIo Device protocol\r
                          should have been installed.\r
\r
  @retval EFI_SUCCESS     The device has been un-initialized successfully.\r
\r
  @return                 Status code returned by UninstallProtocolInterface\r
                          Boot Service function.\r
\r
**/\r
EFI_STATUS\r
VirtioMmioUninstallDevice (\r
  IN EFI_HANDLE             Handle\r
  );\r
\r
#endif // _VIRTIO_MMIO_DEVICE_LIB_H_\r