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| author | Anthony PERARD <anthony.perard@citrix.com> | 2014-10-29 06:51:18 +0000 |
|---|---|---|
| committer | jljusten <jljusten@Edk2> | 2014-10-29 06:51:18 +0000 |
| commit | 86d968e05ee062b10fe8d597b34f5eab2e2878bd (patch) | |
| tree | 8c950699bbd77f9bc8bc4ad2dce3aed7568ca78a /OvmfPkg/XenBusDxe/XenBus.h | |
| parent | c23c037fb3b47574950a19d4753fbeccff5e3d42 (diff) | |
| download | edk2-86d968e05ee062b10fe8d597b34f5eab2e2878bd.tar.gz edk2-86d968e05ee062b10fe8d597b34f5eab2e2878bd.tar.bz2 edk2-86d968e05ee062b10fe8d597b34f5eab2e2878bd.zip | |
OvmfPkg/XenBusDxe: Introduce XenBus support itself.
This is a bus-like on top of XenStore. It will look for advertised
ParaVirtualized devices and initialize them by producing XenBus
protocol.
Change in V4:
- Replace the license by the commonly used file header text.
- Clean XenBus.h header (remove copyright that does not belong to the
file anymore; and rewrite the brief description of the file)
- Fix description on the function
Change in V3:
- Insert to ChildList later, once populated.
- Remove XENBUS_XENSTORE_NODE macro.
- add comment to XenBusAddDevice and XenBusEnumerateBus about
concurrency calls.
- Add a description to the introduced member to the protocol.
Change in V2:
- comment, file header
- Fix comment style
- Error handling in the main init function
- coding style
- Fix error path in add device.
Origin: FreeBSD 10.0
License: This patch adds XenBus.c which is under the MIT licence.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
Acked-by: Jordan Justen <jordan.l.justen@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@16270 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'OvmfPkg/XenBusDxe/XenBus.h')
| -rw-r--r-- | OvmfPkg/XenBusDxe/XenBus.h | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/OvmfPkg/XenBusDxe/XenBus.h b/OvmfPkg/XenBusDxe/XenBus.h new file mode 100644 index 0000000000..e96439ab7b --- /dev/null +++ b/OvmfPkg/XenBusDxe/XenBus.h @@ -0,0 +1,44 @@ +/** @file
+ XenBus Bus driver declarations.
+
+ Copyright (C) 2014, Citrix Ltd.
+
+ 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 _XEN_XENBUS_XENBUSB_H
+#define _XEN_XENBUS_XENBUSB_H
+
+#include "XenBusDxe.h"
+
+#define XENBUS_DEVICE_PATH_TYPE_VBD 0x1
+struct _XENBUS_DEVICE_PATH {
+ VENDOR_DEVICE_PATH Vendor;
+ UINT8 Type;
+ UINT16 DeviceId;
+};
+
+
+/**
+ Perform XenBus bus enumeration and install protocol for children.
+
+ Caller should ensure that it is the only one to call this function. This
+ function cannot be called concurrently.
+
+ @param Dev A XENBUS_DEVICE instance.
+
+ @return On success, XENSTORE_STATUS_SUCCESS. Otherwise an errno value
+ indicating the type of failure.
+**/
+XENSTORE_STATUS
+XenBusEnumerateBus (
+ XENBUS_DEVICE *Dev
+ );
+
+#endif /* _XEN_XENBUS_XENBUSB_H */
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