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| author | Ard Biesheuvel <ard.biesheuvel@linaro.org> | 2015-02-28 20:34:16 +0000 |
|---|---|---|
| committer | lersek <lersek@Edk2> | 2015-02-28 20:34:16 +0000 |
| commit | 0169352eaa357281fba57d176cceba3baf67400c (patch) | |
| tree | 5672fd2d1f0e4ce8699b07ba3e4fcaab267d181f /OvmfPkg/Include | |
| parent | b0022ab871d3590f2d074ad1359a4cd0627a2741 (diff) | |
| download | edk2-0169352eaa357281fba57d176cceba3baf67400c.tar.gz | |
ArmVirtualizationPkg: add XenIoMmioLib
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
Diffstat (limited to 'OvmfPkg/Include')
| -rw-r--r-- | OvmfPkg/Include/Library/XenIoMmioLib.h | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/OvmfPkg/Include/Library/XenIoMmioLib.h b/OvmfPkg/Include/Library/XenIoMmioLib.h new file mode 100644 index 000000000..3986c72c5 --- /dev/null +++ b/OvmfPkg/Include/Library/XenIoMmioLib.h @@ -0,0 +1,64 @@ +/** @file
+* Manage XenBus device path and I/O handles
+*
+* Copyright (c) 2015, Linaro Ltd. All rights reserved.<BR>
+*
+* This program and the accompanying materials are
+* licensed and made available under the terms and conditions of the BSD License
+* which accompanies this distribution. The full text of the license may be found at
+* http://opensource.org/licenses/bsd-license.php
+*
+* THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+* WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+*
+**/
+
+#ifndef _XENIO_MMIO_DEVICE_LIB_H_
+#define _XENIO_MMIO_DEVICE_LIB_H_
+
+/**
+
+ Install the XENBUS_ROOT_DEVICE_PATH and XENIO_PROTOCOL protocols on
+ the handle pointed to by @Handle, or on a new handle if it points to
+ NULL
+
+ @param Handle Pointer to the handle to install the protocols
+ on, may point to a NULL handle.
+
+ @param GrantTableAddress The address of the Xen grant table
+
+ @retval EFI_SUCCESS Protocols were installed successfully
+
+ @retval EFI_OUT_OF_RESOURCES The function failed to allocate memory required
+ by the XenIo MMIO and device path protocols
+
+ @return Status code returned by the boot service
+ InstallMultipleProtocolInterfaces ()
+
+**/
+EFI_STATUS
+XenIoMmioInstall (
+ IN OUT EFI_HANDLE *Handle,
+ IN EFI_PHYSICAL_ADDRESS GrantTableAddress
+ );
+
+
+/**
+
+ Uninstall the XENBUS_ROOT_DEVICE_PATH and XENIO_PROTOCOL protocols
+
+ @param Handle Handle onto which the protocols have been installed
+ earlier by XenIoMmioInstall ()
+
+ @retval EFI_SUCCESS Protocols were uninstalled successfully
+
+ @return Status code returned by the boot service
+ UninstallMultipleProtocolInterfaces ()
+
+**/
+EFI_STATUS
+XenIoMmioUninstall (
+ IN EFI_HANDLE Handle
+ );
+
+#endif
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