0169352eaa
This adds a XenIoMmioLib declaration and implementation that can be invoked to install the XENIO_PROTOCOL and a corresponding grant table address on a EFI handle. Contributed-under: TianoCore Contribution Agreement 1.0 Reviewed-by: Laszlo Ersek <lersek@redhat.com> Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Laszlo Ersek <lersek@redhat.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@16979 6f19259b-4bc3-4df7-8a09-765794883524
65 lines
2.0 KiB
C
65 lines
2.0 KiB
C
/** @file
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* Manage XenBus device path and I/O handles
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*
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* Copyright (c) 2015, Linaro Ltd. All rights reserved.<BR>
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*
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* This program and the accompanying materials are
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* licensed and made available under the terms and conditions of the BSD License
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* which accompanies this distribution. The full text of the license may be found at
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* http://opensource.org/licenses/bsd-license.php
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*
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* THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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* WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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*
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**/
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#ifndef _XENIO_MMIO_DEVICE_LIB_H_
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#define _XENIO_MMIO_DEVICE_LIB_H_
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/**
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Install the XENBUS_ROOT_DEVICE_PATH and XENIO_PROTOCOL protocols on
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the handle pointed to by @Handle, or on a new handle if it points to
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NULL
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@param Handle Pointer to the handle to install the protocols
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on, may point to a NULL handle.
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@param GrantTableAddress The address of the Xen grant table
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@retval EFI_SUCCESS Protocols were installed successfully
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@retval EFI_OUT_OF_RESOURCES The function failed to allocate memory required
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by the XenIo MMIO and device path protocols
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@return Status code returned by the boot service
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InstallMultipleProtocolInterfaces ()
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**/
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EFI_STATUS
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XenIoMmioInstall (
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IN OUT EFI_HANDLE *Handle,
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IN EFI_PHYSICAL_ADDRESS GrantTableAddress
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);
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/**
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Uninstall the XENBUS_ROOT_DEVICE_PATH and XENIO_PROTOCOL protocols
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@param Handle Handle onto which the protocols have been installed
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earlier by XenIoMmioInstall ()
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@retval EFI_SUCCESS Protocols were uninstalled successfully
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@return Status code returned by the boot service
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UninstallMultipleProtocolInterfaces ()
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**/
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EFI_STATUS
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XenIoMmioUninstall (
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IN EFI_HANDLE Handle
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);
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#endif
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