X-Git-Url: https://git.proxmox.com/?p=mirror_edk2.git;a=blobdiff_plain;f=OvmfPkg%2FXenBusDxe%2FXenBusDxe.h;h=8b32505cb09c6a7c426ae55d48ca0c66111ef3de;hp=388d2996953ca3e278486dcf6bbdadc1c9d97e39;hb=HEAD;hpb=956622c4c9b25becf57ccc1771ffbc92b78ed005

diff --git a/OvmfPkg/XenBusDxe/XenBusDxe.h b/OvmfPkg/XenBusDxe/XenBusDxe.h
index 388d299695..8b32505cb0 100644
--- a/OvmfPkg/XenBusDxe/XenBusDxe.h
+++ b/OvmfPkg/XenBusDxe/XenBusDxe.h
@@ -3,13 +3,7 @@
 
   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.
+  SPDX-License-Identifier: BSD-2-Clause-Patent
 
 **/
 
@@ -28,38 +22,34 @@
 #include <Library/UefiLib.h>
 #include <Library/DevicePathLib.h>
 #include <Library/DebugLib.h>
-
+#include <Library/PcdLib.h>
 
 //
 // UEFI Driver Model Protocols
 //
 #include <Protocol/DriverBinding.h>
 
-
 //
 // Consumed Protocols
 //
-#include <Protocol/PciIo.h>
-
+#include <Protocol/XenIo.h>
 
 //
 // Produced Protocols
 //
-
+#include <Protocol/XenBus.h>
 
 //
 // Driver Version
 //
 #define XENBUS_DXE_VERSION  0x00000010
 
-
 //
 // Protocol instances
 //
-extern EFI_DRIVER_BINDING_PROTOCOL  gXenBusDxeDriverBinding;
+extern EFI_DRIVER_BINDING_PROTOCOL   gXenBusDxeDriverBinding;
 extern EFI_COMPONENT_NAME2_PROTOCOL  gXenBusDxeComponentName2;
-extern EFI_COMPONENT_NAME_PROTOCOL  gXenBusDxeComponentName;
-
+extern EFI_COMPONENT_NAME_PROTOCOL   gXenBusDxeComponentName;
 
 //
 // Include files with function prototypes
@@ -72,23 +62,61 @@ extern EFI_COMPONENT_NAME_PROTOCOL  gXenBusDxeComponentName;
 //
 #include <IndustryStandard/Xen/xen.h>
 
-#define PCI_VENDOR_ID_XEN                0x5853
-#define PCI_DEVICE_ID_XEN_PLATFORM       0x0001
-
-
-typedef struct _XENBUS_DEVICE XENBUS_DEVICE;
+typedef struct _XENBUS_DEVICE_PATH  XENBUS_DEVICE_PATH;
+typedef struct _XENBUS_DEVICE       XENBUS_DEVICE;
 
 // Have the state of the driver.
-#define XENBUS_DEVICE_SIGNATURE SIGNATURE_32 ('X','B','s','t')
+#define XENBUS_DEVICE_SIGNATURE  SIGNATURE_32 ('X','B','s','t')
 struct _XENBUS_DEVICE {
-  UINT32                        Signature;
-  EFI_DRIVER_BINDING_PROTOCOL   *This;
-  EFI_HANDLE                    ControllerHandle;
-  EFI_PCI_IO_PROTOCOL           *PciIo;
-  EFI_EVENT                     ExitBootEvent;
-
-  VOID                          *Hyperpage;
-  shared_info_t                 *SharedInfo;
+  UINT32                         Signature;
+  EFI_DRIVER_BINDING_PROTOCOL    *This;
+  EFI_HANDLE                     ControllerHandle;
+  XENIO_PROTOCOL                 *XenIo;
+  EFI_EVENT                      ExitBootEvent;
+  EFI_DEVICE_PATH_PROTOCOL       *DevicePath;
+  LIST_ENTRY                     ChildList;
+
+  shared_info_t                  *SharedInfo;
 };
 
+// There is one of this struct allocated for every child.
+#define XENBUS_PRIVATE_DATA_SIGNATURE  SIGNATURE_32 ('X', 'B', 'p', 'd')
+typedef struct {
+  UINTN                 Signature;
+  LIST_ENTRY            Link;
+  EFI_HANDLE            Handle;
+  XENBUS_PROTOCOL       XenBusIo;
+  XENBUS_DEVICE         *Dev;
+  XENBUS_DEVICE_PATH    *DevicePath;
+} XENBUS_PRIVATE_DATA;
+
+#define XENBUS_PRIVATE_DATA_FROM_THIS(a) \
+  CR (a, XENBUS_PRIVATE_DATA, XenBusIo, XENBUS_PRIVATE_DATA_SIGNATURE)
+#define XENBUS_PRIVATE_DATA_FROM_LINK(a) \
+  CR (a, XENBUS_PRIVATE_DATA, Link, XENBUS_PRIVATE_DATA_SIGNATURE)
+
+/*
+ * Helpers
+ */
+
+/**
+  Atomically test and clear a bit.
+
+  @param Bit      Bit index to test in *Address
+  @param Address  The Address to the buffer that contain the bit to test.
+
+  @return Value of the Bit before it was cleared.
+**/
+INT32
+EFIAPI
+TestAndClearBit (
+  IN INT32  Bit,
+  IN VOID   *Address
+  );
+
+CHAR8 *
+AsciiStrDup (
+  IN CONST CHAR8  *Str
+  );
+
 #endif