OvmfPkg/VirtioBlkDxe/VirtioBlk.inf\r
OvmfPkg/VirtioScsiDxe/VirtioScsi.inf\r
OvmfPkg/QemuFlashFvbServicesRuntimeDxe/FvbServicesRuntimeDxe.inf\r
+ OvmfPkg/XenBusDxe/XenBusDxe.inf\r
OvmfPkg/EmuVariableFvbRuntimeDxe/Fvb.inf {\r
<LibraryClasses>\r
PlatformFvbLib|OvmfPkg/Library/EmuVariableFvbLib/EmuVariableFvbLib.inf\r
INF OvmfPkg/QemuFlashFvbServicesRuntimeDxe/FvbServicesRuntimeDxe.inf\r
INF OvmfPkg/EmuVariableFvbRuntimeDxe/Fvb.inf\r
INF MdeModulePkg/Universal/FaultTolerantWriteDxe/FaultTolerantWriteDxe.inf\r
+INF OvmfPkg/XenBusDxe/XenBusDxe.inf\r
\r
!if $(SECURE_BOOT_ENABLE) == TRUE\r
INF SecurityPkg/VariableAuthenticated/RuntimeDxe/VariableRuntimeDxe.inf\r
OvmfPkg/VirtioBlkDxe/VirtioBlk.inf\r
OvmfPkg/VirtioScsiDxe/VirtioScsi.inf\r
OvmfPkg/QemuFlashFvbServicesRuntimeDxe/FvbServicesRuntimeDxe.inf\r
+ OvmfPkg/XenBusDxe/XenBusDxe.inf\r
OvmfPkg/EmuVariableFvbRuntimeDxe/Fvb.inf {\r
<LibraryClasses>\r
PlatformFvbLib|OvmfPkg/Library/EmuVariableFvbLib/EmuVariableFvbLib.inf\r
INF OvmfPkg/QemuFlashFvbServicesRuntimeDxe/FvbServicesRuntimeDxe.inf\r
INF OvmfPkg/EmuVariableFvbRuntimeDxe/Fvb.inf\r
INF MdeModulePkg/Universal/FaultTolerantWriteDxe/FaultTolerantWriteDxe.inf\r
+INF OvmfPkg/XenBusDxe/XenBusDxe.inf\r
\r
!if $(SECURE_BOOT_ENABLE) == TRUE\r
INF SecurityPkg/VariableAuthenticated/RuntimeDxe/VariableRuntimeDxe.inf\r
OvmfPkg/VirtioBlkDxe/VirtioBlk.inf\r
OvmfPkg/VirtioScsiDxe/VirtioScsi.inf\r
OvmfPkg/QemuFlashFvbServicesRuntimeDxe/FvbServicesRuntimeDxe.inf\r
+ OvmfPkg/XenBusDxe/XenBusDxe.inf\r
OvmfPkg/EmuVariableFvbRuntimeDxe/Fvb.inf {\r
<LibraryClasses>\r
PlatformFvbLib|OvmfPkg/Library/EmuVariableFvbLib/EmuVariableFvbLib.inf\r
INF OvmfPkg/QemuFlashFvbServicesRuntimeDxe/FvbServicesRuntimeDxe.inf\r
INF OvmfPkg/EmuVariableFvbRuntimeDxe/Fvb.inf\r
INF MdeModulePkg/Universal/FaultTolerantWriteDxe/FaultTolerantWriteDxe.inf\r
+INF OvmfPkg/XenBusDxe/XenBusDxe.inf\r
\r
!if $(SECURE_BOOT_ENABLE) == TRUE\r
INF SecurityPkg/VariableAuthenticated/RuntimeDxe/VariableRuntimeDxe.inf\r
--- /dev/null
+/** @file\r
+ Component Name functions implementation for XenBus Bus driver.\r
+\r
+ Copyright (C) 2014, Citrix Ltd.\r
+\r
+ This program and the accompanying materials\r
+ are licensed and made available under the terms and conditions of the BSD License\r
+ which accompanies this 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,\r
+ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
+\r
+**/\r
+\r
+#include "XenBusDxe.h"\r
+\r
+///\r
+/// Component Name Protocol instance\r
+///\r
+GLOBAL_REMOVE_IF_UNREFERENCED\r
+EFI_COMPONENT_NAME_PROTOCOL gXenBusDxeComponentName = {\r
+ (EFI_COMPONENT_NAME_GET_DRIVER_NAME) XenBusDxeComponentNameGetDriverName,\r
+ (EFI_COMPONENT_NAME_GET_CONTROLLER_NAME)XenBusDxeComponentNameGetControllerName,\r
+ "eng"\r
+};\r
+\r
+///\r
+/// Component Name 2 Protocol instance\r
+///\r
+GLOBAL_REMOVE_IF_UNREFERENCED\r
+EFI_COMPONENT_NAME2_PROTOCOL gXenBusDxeComponentName2 = {\r
+ XenBusDxeComponentNameGetDriverName,\r
+ XenBusDxeComponentNameGetControllerName,\r
+ "en"\r
+};\r
+\r
+///\r
+/// Table of driver names\r
+///\r
+GLOBAL_REMOVE_IF_UNREFERENCED\r
+EFI_UNICODE_STRING_TABLE mXenBusDxeDriverNameTable[] = {\r
+ { "eng;en", (CHAR16 *)L"XenBus Bus Driver" },\r
+ { NULL, NULL }\r
+};\r
+\r
+///\r
+/// Table of controller names\r
+///\r
+GLOBAL_REMOVE_IF_UNREFERENCED\r
+EFI_UNICODE_STRING_TABLE mXenBusDxeControllerNameTable[] = {\r
+ { "eng;en", (CHAR16 *)L"XenBus Controller" },\r
+ { NULL, NULL }\r
+};\r
+\r
+/**\r
+ Retrieves a Unicode string that is the user-readable name of the EFI Driver.\r
+\r
+ @param This A pointer to the EFI_COMPONENT_NAME_PROTOCOL instance.\r
+ @param Language A pointer to a three-character ISO 639-2 language identifier.\r
+ This is the language of the driver name that that the caller\r
+ is requesting, and it must match one of the languages specified\r
+ in SupportedLanguages. The number of languages supported by a\r
+ driver is up to the driver writer.\r
+ @param DriverName A pointer to the Unicode string to return. This Unicode string\r
+ is the name of the driver specified by This in the language\r
+ specified by Language.\r
+\r
+ @retval EFI_SUCCESS The Unicode string for the Driver specified by This\r
+ and the language specified by Language was returned\r
+ in DriverName.\r
+ @retval EFI_INVALID_PARAMETER Language is NULL.\r
+ @retval EFI_INVALID_PARAMETER DriverName is NULL.\r
+ @retval EFI_UNSUPPORTED The driver specified by This does not support the\r
+ language specified by Language.\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+XenBusDxeComponentNameGetDriverName (\r
+ IN EFI_COMPONENT_NAME2_PROTOCOL *This,\r
+ IN CHAR8 *Language,\r
+ OUT CHAR16 **DriverName\r
+ )\r
+{\r
+ return LookupUnicodeString2 (\r
+ Language,\r
+ This->SupportedLanguages,\r
+ mXenBusDxeDriverNameTable,\r
+ DriverName,\r
+ (BOOLEAN)(This != &gXenBusDxeComponentName2)\r
+ );\r
+}\r
+\r
+/**\r
+ Retrieves a Unicode string that is the user readable name of the controller\r
+ that is being managed by an EFI Driver.\r
+\r
+ @param This A pointer to the EFI_COMPONENT_NAME_PROTOCOL instance.\r
+ @param ControllerHandle The handle of a controller that the driver specified by\r
+ This is managing. This handle specifies the controller\r
+ whose name is to be returned.\r
+ @param ChildHandle The handle of the child controller to retrieve the name\r
+ of. This is an optional parameter that may be NULL. It\r
+ will be NULL for device drivers. It will also be NULL\r
+ for a bus drivers that wish to retrieve the name of the\r
+ bus controller. It will not be NULL for a bus driver\r
+ that wishes to retrieve the name of a child controller.\r
+ @param Language A pointer to a three character ISO 639-2 language\r
+ identifier. This is the language of the controller name\r
+ that the caller is requesting, and it must match one\r
+ of the languages specified in SupportedLanguages. The\r
+ number of languages supported by a driver is up to the\r
+ driver writer.\r
+ @param ControllerName A pointer to the Unicode string to return. This Unicode\r
+ string is the name of the controller specified by\r
+ ControllerHandle and ChildHandle in the language specified\r
+ by Language, from the point of view of the driver specified\r
+ by This.\r
+\r
+ @retval EFI_SUCCESS The Unicode string for the user-readable name in the\r
+ language specified by Language for the driver\r
+ specified by This was returned in DriverName.\r
+ @retval EFI_INVALID_PARAMETER ControllerHandle is NULL.\r
+ @retval EFI_INVALID_PARAMETER ChildHandle is not NULL and it is not a valid EFI_HANDLE.\r
+ @retval EFI_INVALID_PARAMETER Language is NULL.\r
+ @retval EFI_INVALID_PARAMETER ControllerName is NULL.\r
+ @retval EFI_UNSUPPORTED The driver specified by This is not currently managing\r
+ the controller specified by ControllerHandle and\r
+ ChildHandle.\r
+ @retval EFI_UNSUPPORTED The driver specified by This does not support the\r
+ language specified by Language.\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+XenBusDxeComponentNameGetControllerName (\r
+ IN EFI_COMPONENT_NAME2_PROTOCOL *This,\r
+ IN EFI_HANDLE ControllerHandle,\r
+ IN EFI_HANDLE ChildHandle OPTIONAL,\r
+ IN CHAR8 *Language,\r
+ OUT CHAR16 **ControllerName\r
+ )\r
+{\r
+ EFI_STATUS Status;\r
+\r
+ if (ChildHandle != NULL) {\r
+ // TODO Get controller name for a child.\r
+ return EFI_UNSUPPORTED;\r
+ }\r
+\r
+ //\r
+ // Make sure this driver is currently managing ControllerHandle\r
+ //\r
+ Status = EfiTestManagedDevice (\r
+ ControllerHandle,\r
+ gXenBusDxeDriverBinding.DriverBindingHandle,\r
+ &gEfiPciIoProtocolGuid\r
+ );\r
+ if (EFI_ERROR (Status)) {\r
+ return Status;\r
+ }\r
+\r
+ //\r
+ // Lookup name of controller specified by ControllerHandle\r
+ //\r
+ return LookupUnicodeString2 (\r
+ Language,\r
+ This->SupportedLanguages,\r
+ mXenBusDxeControllerNameTable,\r
+ ControllerName,\r
+ (BOOLEAN)(This != &gXenBusDxeComponentName2)\r
+ );\r
+}\r
--- /dev/null
+/** @file\r
+ Component Name functions declaration for XenBus Bus driver.\r
+\r
+ Copyright (C) 2014, Citrix Ltd.\r
+\r
+ This program and the accompanying materials\r
+ are licensed and made available under the terms and conditions of the BSD License\r
+ which accompanies this 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,\r
+ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
+\r
+**/\r
+\r
+/**\r
+ Retrieves a Unicode string that is the user-readable name of the EFI Driver.\r
+\r
+ @param This A pointer to the EFI_COMPONENT_NAME_PROTOCOL instance.\r
+ @param Language A pointer to a three-character ISO 639-2 language identifier.\r
+ This is the language of the driver name that that the caller\r
+ is requesting, and it must match one of the languages specified\r
+ in SupportedLanguages. The number of languages supported by a\r
+ driver is up to the driver writer.\r
+ @param DriverName A pointer to the Unicode string to return. This Unicode string\r
+ is the name of the driver specified by This in the language\r
+ specified by Language.\r
+\r
+ @retval EFI_SUCCESS The Unicode string for the Driver specified by This\r
+ and the language specified by Language was returned\r
+ in DriverName.\r
+ @retval EFI_INVALID_PARAMETER Language is NULL.\r
+ @retval EFI_INVALID_PARAMETER DriverName is NULL.\r
+ @retval EFI_UNSUPPORTED The driver specified by This does not support the\r
+ language specified by Language.\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+XenBusDxeComponentNameGetDriverName (\r
+ IN EFI_COMPONENT_NAME2_PROTOCOL *This,\r
+ IN CHAR8 *Language,\r
+ OUT CHAR16 **DriverName\r
+ );\r
+\r
+/**\r
+ Retrieves a Unicode string that is the user readable name of the controller\r
+ that is being managed by an EFI Driver.\r
+\r
+ @param This A pointer to the EFI_COMPONENT_NAME_PROTOCOL instance.\r
+ @param ControllerHandle The handle of a controller that the driver specified by\r
+ This is managing. This handle specifies the controller\r
+ whose name is to be returned.\r
+ @param ChildHandle The handle of the child controller to retrieve the name\r
+ of. This is an optional parameter that may be NULL. It\r
+ will be NULL for device drivers. It will also be NULL\r
+ for a bus drivers that wish to retrieve the name of the\r
+ bus controller. It will not be NULL for a bus driver\r
+ that wishes to retrieve the name of a child controller.\r
+ @param Language A pointer to a three character ISO 639-2 language\r
+ identifier. This is the language of the controller name\r
+ that the caller is requesting, and it must match one\r
+ of the languages specified in SupportedLanguages. The\r
+ number of languages supported by a driver is up to the\r
+ driver writer.\r
+ @param ControllerName A pointer to the Unicode string to return. This Unicode\r
+ string is the name of the controller specified by\r
+ ControllerHandle and ChildHandle in the language specified\r
+ by Language, from the point of view of the driver specified\r
+ by This.\r
+\r
+ @retval EFI_SUCCESS The Unicode string for the user-readable name in the\r
+ language specified by Language for the driver\r
+ specified by This was returned in DriverName.\r
+ @retval EFI_INVALID_PARAMETER ControllerHandle is NULL.\r
+ @retval EFI_INVALID_PARAMETER ChildHandle is not NULL and it is not a valid EFI_HANDLE.\r
+ @retval EFI_INVALID_PARAMETER Language is NULL.\r
+ @retval EFI_INVALID_PARAMETER ControllerName is NULL.\r
+ @retval EFI_UNSUPPORTED The driver specified by This is not currently managing\r
+ the controller specified by ControllerHandle and\r
+ ChildHandle.\r
+ @retval EFI_UNSUPPORTED The driver specified by This does not support the\r
+ language specified by Language.\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+XenBusDxeComponentNameGetControllerName (\r
+ IN EFI_COMPONENT_NAME2_PROTOCOL *This,\r
+ IN EFI_HANDLE ControllerHandle,\r
+ IN EFI_HANDLE ChildHandle OPTIONAL,\r
+ IN CHAR8 *Language,\r
+ OUT CHAR16 **ControllerName\r
+ );\r
--- /dev/null
+/** @file\r
+ Driver Binding functions declaration for XenBus Bus driver.\r
+\r
+ Copyright (C) 2014, Citrix Ltd.\r
+\r
+ This program and the accompanying materials\r
+ are licensed and made available under the terms and conditions of the BSD License\r
+ which accompanies this 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,\r
+ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
+\r
+**/\r
+\r
+/**\r
+ Tests to see if this driver supports a given controller. If a child device is provided,\r
+ it further tests to see if this driver supports creating a handle for the specified child device.\r
+\r
+ @param[in] This A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance.\r
+ @param[in] ControllerHandle The handle of the controller to test. This handle\r
+ must support a protocol interface that supplies\r
+ an I/O abstraction to the driver.\r
+ @param[in] RemainingDevicePath A pointer to the remaining portion of a device path. This\r
+ parameter is ignored by device drivers, and is optional for bus\r
+ drivers. For bus drivers, if this parameter is not NULL, then\r
+ the bus driver must determine if the bus controller specified\r
+ by ControllerHandle and the child controller specified\r
+ by RemainingDevicePath are both supported by this\r
+ bus driver.\r
+\r
+ @retval EFI_SUCCESS The device specified by ControllerHandle and\r
+ RemainingDevicePath is supported by the driver specified by This.\r
+ @retval EFI_ALREADY_STARTED The device specified by ControllerHandle and\r
+ RemainingDevicePath is already being managed by the driver\r
+ specified by This.\r
+ @retval EFI_ACCESS_DENIED The device specified by ControllerHandle and\r
+ RemainingDevicePath is already being managed by a different\r
+ driver or an application that requires exclusive access.\r
+ Currently not implemented.\r
+ @retval EFI_UNSUPPORTED The device specified by ControllerHandle and\r
+ RemainingDevicePath is not supported by the driver specified by This.\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+XenBusDxeDriverBindingSupported (\r
+ IN EFI_DRIVER_BINDING_PROTOCOL *This,\r
+ IN EFI_HANDLE ControllerHandle,\r
+ IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath OPTIONAL\r
+ );\r
+\r
+/**\r
+ Starts a device controller or a bus controller.\r
+\r
+ The Start() function is designed to be invoked from the EFI boot service ConnectController().\r
+ As a result, much of the error checking on the parameters to Start() has been moved into this\r
+ common boot service. It is legal to call Start() from other locations,\r
+ but the following calling restrictions must be followed, or the system behavior will not be deterministic.\r
+ 1. ControllerHandle must be a valid EFI_HANDLE.\r
+ 2. If RemainingDevicePath is not NULL, then it must be a pointer to a naturally aligned\r
+ EFI_DEVICE_PATH_PROTOCOL.\r
+ 3. Prior to calling Start(), the Supported() function for the driver specified by This must\r
+ have been called with the same calling parameters, and Supported() must have returned EFI_SUCCESS.\r
+\r
+ @param[in] This A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance.\r
+ @param[in] ControllerHandle The handle of the controller to start. This handle\r
+ must support a protocol interface that supplies\r
+ an I/O abstraction to the driver.\r
+ @param[in] RemainingDevicePath A pointer to the remaining portion of a device path. This\r
+ parameter is ignored by device drivers, and is optional for bus\r
+ drivers. For a bus driver, if this parameter is NULL, then handles\r
+ for all the children of Controller are created by this driver.\r
+ If this parameter is not NULL and the first Device Path Node is\r
+ not the End of Device Path Node, then only the handle for the\r
+ child device specified by the first Device Path Node of\r
+ RemainingDevicePath is created by this driver.\r
+ If the first Device Path Node of RemainingDevicePath is\r
+ the End of Device Path Node, no child handle is created by this\r
+ driver.\r
+\r
+ @retval EFI_SUCCESS The device was started.\r
+ @retval EFI_DEVICE_ERROR The device could not be started due to a device error.Currently not implemented.\r
+ @retval EFI_OUT_OF_RESOURCES The request could not be completed due to a lack of resources.\r
+ @retval Others The driver failded to start the device.\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+XenBusDxeDriverBindingStart (\r
+ IN EFI_DRIVER_BINDING_PROTOCOL *This,\r
+ IN EFI_HANDLE ControllerHandle,\r
+ IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath OPTIONAL\r
+ );\r
+\r
+/**\r
+ Stops a device controller or a bus controller.\r
+\r
+ The Stop() function is designed to be invoked from the EFI boot service DisconnectController().\r
+ As a result, much of the error checking on the parameters to Stop() has been moved\r
+ into this common boot service. It is legal to call Stop() from other locations,\r
+ but the following calling restrictions must be followed, or the system behavior will not be deterministic.\r
+ 1. ControllerHandle must be a valid EFI_HANDLE that was used on a previous call to this\r
+ same driver's Start() function.\r
+ 2. The first NumberOfChildren handles of ChildHandleBuffer must all be a valid\r
+ EFI_HANDLE. In addition, all of these handles must have been created in this driver's\r
+ Start() function, and the Start() function must have called OpenProtocol() on\r
+ ControllerHandle with an Attribute of EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER.\r
+\r
+ @param[in] This A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance.\r
+ @param[in] ControllerHandle A handle to the device being stopped. The handle must\r
+ support a bus specific I/O protocol for the driver\r
+ to use to stop the device.\r
+ @param[in] NumberOfChildren The number of child device handles in ChildHandleBuffer.\r
+ @param[in] ChildHandleBuffer An array of child handles to be freed. May be NULL\r
+ if NumberOfChildren is 0.\r
+\r
+ @retval EFI_SUCCESS The device was stopped.\r
+ @retval EFI_DEVICE_ERROR The device could not be stopped due to a device error.\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+XenBusDxeDriverBindingStop (\r
+ IN EFI_DRIVER_BINDING_PROTOCOL *This,\r
+ IN EFI_HANDLE ControllerHandle,\r
+ IN UINTN NumberOfChildren,\r
+ IN EFI_HANDLE *ChildHandleBuffer OPTIONAL\r
+ );\r
--- /dev/null
+/** @file\r
+ This driver produces XenBus Protocol instances for each Xen PV devices.\r
+\r
+ This XenBus bus driver will first initialize differente services in order to\r
+ enumerate the ParaVirtualized devices available.\r
+\r
+ Those services are:\r
+ - HyperCall\r
+ - Event Channel\r
+ - Grant Table\r
+ - XenStore\r
+ - XenBus\r
+\r
+ Copyright (C) 2014, Citrix Ltd.\r
+\r
+ This program and the accompanying materials\r
+ are licensed and made available under the terms and conditions of the BSD License\r
+ which accompanies this 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,\r
+ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
+\r
+**/\r
+\r
+#include <IndustryStandard/Pci.h>\r
+#include <IndustryStandard/Acpi.h>\r
+#include <Library/DebugLib.h>\r
+\r
+#include "XenBusDxe.h"\r
+\r
+\r
+///\r
+/// Driver Binding Protocol instance\r
+///\r
+EFI_DRIVER_BINDING_PROTOCOL gXenBusDxeDriverBinding = {\r
+ XenBusDxeDriverBindingSupported,\r
+ XenBusDxeDriverBindingStart,\r
+ XenBusDxeDriverBindingStop,\r
+ XENBUS_DXE_VERSION,\r
+ NULL,\r
+ NULL\r
+};\r
+\r
+\r
+/**\r
+ Unloads an image.\r
+\r
+ @param ImageHandle Handle that identifies the image to be unloaded.\r
+\r
+ @retval EFI_SUCCESS The image has been unloaded.\r
+ @retval EFI_INVALID_PARAMETER ImageHandle is not a valid image handle.\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+XenBusDxeUnload (\r
+ IN EFI_HANDLE ImageHandle\r
+ )\r
+{\r
+ EFI_STATUS Status;\r
+\r
+ EFI_HANDLE *HandleBuffer;\r
+ UINTN HandleCount;\r
+ UINTN Index;\r
+\r
+ //\r
+ // Retrieve array of all handles in the handle database\r
+ //\r
+ Status = gBS->LocateHandleBuffer (\r
+ AllHandles,\r
+ NULL,\r
+ NULL,\r
+ &HandleCount,\r
+ &HandleBuffer\r
+ );\r
+ if (EFI_ERROR (Status)) {\r
+ return Status;\r
+ }\r
+\r
+ //\r
+ // Disconnect the current driver from handles in the handle database\r
+ //\r
+ for (Index = 0; Index < HandleCount; Index++) {\r
+ gBS->DisconnectController (HandleBuffer[Index], gImageHandle, NULL);\r
+ }\r
+\r
+ //\r
+ // Free the array of handles\r
+ //\r
+ FreePool (HandleBuffer);\r
+\r
+\r
+ //\r
+ // Uninstall protocols installed in the driver entry point\r
+ //\r
+ Status = gBS->UninstallMultipleProtocolInterfaces (\r
+ ImageHandle,\r
+ &gEfiDriverBindingProtocolGuid, &gXenBusDxeDriverBinding,\r
+ &gEfiComponentNameProtocolGuid, &gXenBusDxeComponentName,\r
+ &gEfiComponentName2ProtocolGuid, &gXenBusDxeComponentName2,\r
+ NULL\r
+ );\r
+ if (EFI_ERROR (Status)) {\r
+ return Status;\r
+ }\r
+\r
+ return EFI_SUCCESS;\r
+}\r
+\r
+/**\r
+ This is the declaration of an EFI image entry point. This entry point is\r
+ the same for UEFI Applications, UEFI OS Loaders, and UEFI Drivers including\r
+ both device drivers and bus drivers.\r
+\r
+ @param ImageHandle The firmware allocated handle for the UEFI image.\r
+ @param SystemTable A pointer to the EFI System Table.\r
+\r
+ @retval EFI_SUCCESS The operation completed successfully.\r
+ @retval Others An unexpected error occurred.\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+XenBusDxeDriverEntryPoint (\r
+ IN EFI_HANDLE ImageHandle,\r
+ IN EFI_SYSTEM_TABLE *SystemTable\r
+ )\r
+{\r
+ EFI_STATUS Status;\r
+\r
+ //\r
+ // Install UEFI Driver Model protocol(s).\r
+ //\r
+ Status = EfiLibInstallDriverBindingComponentName2 (\r
+ ImageHandle,\r
+ SystemTable,\r
+ &gXenBusDxeDriverBinding,\r
+ ImageHandle,\r
+ &gXenBusDxeComponentName,\r
+ &gXenBusDxeComponentName2\r
+ );\r
+ ASSERT_EFI_ERROR (Status);\r
+\r
+\r
+ return Status;\r
+}\r
+\r
+\r
+/**\r
+ Tests to see if this driver supports a given controller. If a child device is provided,\r
+ it further tests to see if this driver supports creating a handle for the specified child device.\r
+\r
+ @param[in] This A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance.\r
+ @param[in] ControllerHandle The handle of the controller to test. This handle\r
+ must support a protocol interface that supplies\r
+ an I/O abstraction to the driver.\r
+ @param[in] RemainingDevicePath A pointer to the remaining portion of a device path. This\r
+ parameter is ignored by device drivers, and is optional for bus\r
+ drivers. For bus drivers, if this parameter is not NULL, then\r
+ the bus driver must determine if the bus controller specified\r
+ by ControllerHandle and the child controller specified\r
+ by RemainingDevicePath are both supported by this\r
+ bus driver.\r
+\r
+ @retval EFI_SUCCESS The device specified by ControllerHandle and\r
+ RemainingDevicePath is supported by the driver specified by This.\r
+ @retval EFI_ALREADY_STARTED The device specified by ControllerHandle and\r
+ RemainingDevicePath is already being managed by the driver\r
+ specified by This.\r
+ @retval EFI_ACCESS_DENIED The device specified by ControllerHandle and\r
+ RemainingDevicePath is already being managed by a different\r
+ driver or an application that requires exclusive access.\r
+ Currently not implemented.\r
+ @retval EFI_UNSUPPORTED The device specified by ControllerHandle and\r
+ RemainingDevicePath is not supported by the driver specified by This.\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+XenBusDxeDriverBindingSupported (\r
+ IN EFI_DRIVER_BINDING_PROTOCOL *This,\r
+ IN EFI_HANDLE ControllerHandle,\r
+ IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath OPTIONAL\r
+ )\r
+{\r
+ EFI_STATUS Status;\r
+ EFI_PCI_IO_PROTOCOL *PciIo;\r
+ PCI_TYPE00 Pci;\r
+\r
+ Status = gBS->OpenProtocol (\r
+ ControllerHandle,\r
+ &gEfiPciIoProtocolGuid,\r
+ (VOID **)&PciIo,\r
+ This->DriverBindingHandle,\r
+ ControllerHandle,\r
+ EFI_OPEN_PROTOCOL_BY_DRIVER\r
+ );\r
+ if (EFI_ERROR (Status)) {\r
+ return Status;\r
+ }\r
+\r
+ Status = PciIo->Pci.Read (PciIo, EfiPciIoWidthUint32, 0,\r
+ sizeof Pci / sizeof (UINT32), &Pci);\r
+\r
+ if (Status == EFI_SUCCESS) {\r
+ if (Pci.Hdr.VendorId == PCI_VENDOR_ID_XEN &&\r
+ Pci.Hdr.DeviceId == PCI_DEVICE_ID_XEN_PLATFORM) {\r
+ Status = EFI_SUCCESS;\r
+ } else {\r
+ Status = EFI_UNSUPPORTED;\r
+ }\r
+ }\r
+\r
+ gBS->CloseProtocol (ControllerHandle, &gEfiPciIoProtocolGuid,\r
+ This->DriverBindingHandle, ControllerHandle);\r
+\r
+ return Status;\r
+}\r
+\r
+/**\r
+ Starts a bus controller.\r
+\r
+ The Start() function is designed to be invoked from the EFI boot service ConnectController().\r
+ As a result, much of the error checking on the parameters to Start() has been moved into this\r
+ common boot service. It is legal to call Start() from other locations,\r
+ but the following calling restrictions must be followed, or the system behavior will not be deterministic.\r
+ 1. ControllerHandle must be a valid EFI_HANDLE.\r
+ 2. If RemainingDevicePath is not NULL, then it must be a pointer to a naturally aligned\r
+ EFI_DEVICE_PATH_PROTOCOL.\r
+ 3. Prior to calling Start(), the Supported() function for the driver specified by This must\r
+ have been called with the same calling parameters, and Supported() must have returned EFI_SUCCESS.\r
+\r
+ @param[in] This A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance.\r
+ @param[in] ControllerHandle The handle of the controller to start. This handle\r
+ must support a protocol interface that supplies\r
+ an I/O abstraction to the driver.\r
+ @param[in] RemainingDevicePath A pointer to the remaining portion of a device path. This\r
+ parameter is ignored by device drivers, and is optional for bus\r
+ drivers. For a bus driver, if this parameter is NULL, then handles\r
+ for all the children of Controller are created by this driver.\r
+ If this parameter is not NULL and the first Device Path Node is\r
+ not the End of Device Path Node, then only the handle for the\r
+ child device specified by the first Device Path Node of\r
+ RemainingDevicePath is created by this driver.\r
+ If the first Device Path Node of RemainingDevicePath is\r
+ the End of Device Path Node, no child handle is created by this\r
+ driver.\r
+\r
+ @retval EFI_SUCCESS The device was started.\r
+ @retval EFI_DEVICE_ERROR The device could not be started due to a device error.Currently not implemented.\r
+ @retval EFI_OUT_OF_RESOURCES The request could not be completed due to a lack of resources.\r
+ @retval Others The driver failded to start the device.\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+XenBusDxeDriverBindingStart (\r
+ IN EFI_DRIVER_BINDING_PROTOCOL *This,\r
+ IN EFI_HANDLE ControllerHandle,\r
+ IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath OPTIONAL\r
+ )\r
+{\r
+ return EFI_UNSUPPORTED;\r
+}\r
+\r
+/**\r
+ Stops a bus controller.\r
+\r
+ The Stop() function is designed to be invoked from the EFI boot service DisconnectController().\r
+ As a result, much of the error checking on the parameters to Stop() has been moved\r
+ into this common boot service. It is legal to call Stop() from other locations,\r
+ but the following calling restrictions must be followed, or the system behavior will not be deterministic.\r
+ 1. ControllerHandle must be a valid EFI_HANDLE that was used on a previous call to this\r
+ same driver's Start() function.\r
+ 2. The first NumberOfChildren handles of ChildHandleBuffer must all be a valid\r
+ EFI_HANDLE. In addition, all of these handles must have been created in this driver's\r
+ Start() function, and the Start() function must have called OpenProtocol() on\r
+ ControllerHandle with an Attribute of EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER.\r
+\r
+ @param[in] This A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance.\r
+ @param[in] ControllerHandle A handle to the device being stopped. The handle must\r
+ support a bus specific I/O protocol for the driver\r
+ to use to stop the device.\r
+ @param[in] NumberOfChildren The number of child device handles in ChildHandleBuffer.\r
+ @param[in] ChildHandleBuffer An array of child handles to be freed. May be NULL\r
+ if NumberOfChildren is 0.\r
+\r
+ @retval EFI_SUCCESS The device was stopped.\r
+ @retval EFI_DEVICE_ERROR The device could not be stopped due to a device error.\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+XenBusDxeDriverBindingStop (\r
+ IN EFI_DRIVER_BINDING_PROTOCOL *This,\r
+ IN EFI_HANDLE ControllerHandle,\r
+ IN UINTN NumberOfChildren,\r
+ IN EFI_HANDLE *ChildHandleBuffer OPTIONAL\r
+ )\r
+{\r
+ return EFI_UNSUPPORTED;\r
+}\r
--- /dev/null
+/** @file\r
+ Function declaration and internal data for XenBusDxe.\r
+\r
+ Copyright (C) 2014, Citrix Ltd.\r
+\r
+ This program and the accompanying materials\r
+ are licensed and made available under the terms and conditions of the BSD License\r
+ which accompanies this 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,\r
+ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
+\r
+**/\r
+\r
+#ifndef __EFI_XENBUS_DXE_H__\r
+#define __EFI_XENBUS_DXE_H__\r
+\r
+#include <Uefi.h>\r
+\r
+//\r
+// Libraries\r
+//\r
+#include <Library/UefiBootServicesTableLib.h>\r
+#include <Library/MemoryAllocationLib.h>\r
+#include <Library/BaseMemoryLib.h>\r
+#include <Library/BaseLib.h>\r
+#include <Library/UefiLib.h>\r
+#include <Library/DevicePathLib.h>\r
+#include <Library/DebugLib.h>\r
+\r
+\r
+//\r
+// UEFI Driver Model Protocols\r
+//\r
+#include <Protocol/DriverBinding.h>\r
+\r
+\r
+//\r
+// Consumed Protocols\r
+//\r
+#include <Protocol/PciIo.h>\r
+\r
+\r
+//\r
+// Produced Protocols\r
+//\r
+\r
+\r
+//\r
+// Driver Version\r
+//\r
+#define XENBUS_DXE_VERSION 0x00000010\r
+\r
+\r
+//\r
+// Protocol instances\r
+//\r
+extern EFI_DRIVER_BINDING_PROTOCOL gXenBusDxeDriverBinding;\r
+extern EFI_COMPONENT_NAME2_PROTOCOL gXenBusDxeComponentName2;\r
+extern EFI_COMPONENT_NAME_PROTOCOL gXenBusDxeComponentName;\r
+\r
+\r
+//\r
+// Include files with function prototypes\r
+//\r
+#include "DriverBinding.h"\r
+#include "ComponentName.h"\r
+\r
+//\r
+// Other stuff\r
+//\r
+#define PCI_VENDOR_ID_XEN 0x5853\r
+#define PCI_DEVICE_ID_XEN_PLATFORM 0x0001\r
+\r
+\r
+#endif\r
--- /dev/null
+## @file\r
+# This driver produces a XenBus protocol for every Xen PV devices found.\r
+#\r
+# Copyright (C) 2014, Citrix Ltd.\r
+#\r
+# This program and the accompanying materials\r
+# are licensed and made available under the terms and conditions of the BSD License\r
+# which accompanies this 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,\r
+# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
+#\r
+##\r
+\r
+[Defines]\r
+ INF_VERSION = 0x00010005\r
+ BASE_NAME = XenBusDxe\r
+ FILE_GUID = 565ec8ba-a484-11e3-802b-b8ac6f7d65e6\r
+ MODULE_TYPE = UEFI_DRIVER\r
+\r
+ VERSION_STRING = 1.0\r
+ ENTRY_POINT = XenBusDxeDriverEntryPoint\r
+ UNLOAD_IMAGE = XenBusDxeUnload\r
+\r
+\r
+[Packages]\r
+ MdePkg/MdePkg.dec\r
+ OvmfPkg/OvmfPkg.dec\r
+\r
+[Sources]\r
+ XenBusDxe.h\r
+ XenBusDxe.c\r
+ DriverBinding.h\r
+ ComponentName.c\r
+ ComponentName.h\r
+\r
+[LibraryClasses]\r
+ UefiDriverEntryPoint\r
+ UefiBootServicesTableLib\r
+ MemoryAllocationLib\r
+ BaseMemoryLib\r
+ BaseLib\r
+ UefiLib\r
+ DevicePathLib\r
+ DebugLib\r
+ HobLib\r
+\r
+\r
+[Protocols]\r
+ gEfiDriverBindingProtocolGuid\r
+ gEfiPciIoProtocolGuid\r
+ gEfiComponentName2ProtocolGuid\r
+ gEfiComponentNameProtocolGuid\r
+\r
+\r
+[Guids]\r
+ gEfiXenInfoGuid\r
+\r
projects / mirror_edk2.git / commitdiff