/*++\r
\r
-Copyright (c) 2006, Intel Corporation \r
-All rights reserved. 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
+Copyright (c) 2006, Intel Corporation\r
+All rights reserved. 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
Module Name:\r
\r
RuntimeLib.c\r
\r
-Abstract:\r
-\r
- Light weight lib to support Tiano drivers.\r
-\r
--*/\r
\r
-#include <SalApi.h>\r
#include <RuntimeLibInternal.h>\r
\r
//\r
// Driver Lib Module Globals\r
//\r
+static EFI_EVENT mEfiVirtualNotifyEvent;\r
+EFI_RUNTIME_SERVICES *mRT;\r
\r
-STATIC EFI_EVENT mRuntimeNotifyEvent;\r
-STATIC EFI_EVENT mEfiVirtualNotifyEvent;\r
-\r
-STATIC EFI_PLABEL mPlabel;\r
-STATIC EXTENDED_SAL_BOOT_SERVICE_PROTOCOL *mEsalBootService;\r
-\r
-EFI_RUNTIME_SERVICES *mRT = NULL;\r
-\r
-STATIC\r
VOID\r
EFIAPI\r
RuntimeDriverExitBootServices (\r
Arguments:\r
\r
Event - The Event that is being processed\r
- \r
+\r
Context - Event Context\r
\r
-Returns: \r
+Returns:\r
\r
None\r
\r
--*/\r
{\r
- EFI_EVENT_NOTIFY ChildNotifyEventHandler;\r
- UINTN Index;\r
-\r
- for (Index = 0; _gDriverExitBootServicesEvent[Index] != NULL; Index++) {\r
- ChildNotifyEventHandler = _gDriverExitBootServicesEvent[Index];\r
- ChildNotifyEventHandler (Event, NULL);\r
+ if (EfiAtRuntime()) {\r
+ return;\r
}\r
}\r
\r
Routine Description:\r
\r
Fixup internal data so that EFI can be call in virtual mode.\r
- Call the passed in Child Notify event and convert any pointers in \r
+ Call the passed in Child Notify event and convert any pointers in\r
lib to virtual mode.\r
\r
Arguments:\r
\r
Event - The Event that is being processed\r
- \r
+\r
Context - Event Context\r
\r
-Returns: \r
+Returns:\r
\r
None\r
\r
--*/\r
{\r
- UINTN Index;\r
+ UINTN Index;\r
EFI_EVENT_NOTIFY ChildNotifyEventHandler;\r
\r
for (Index = 0; _gDriverSetVirtualAddressMapEvent[Index] != NULL; Index++) {\r
ChildNotifyEventHandler (Event, NULL);\r
}\r
\r
- mRT->ConvertPointer (0x0, (VOID **) &mPlabel.EntryPoint);\r
- mRT->ConvertPointer (EFI_IPF_GP_POINTER, (VOID **) &mPlabel.GP);\r
-\r
- SetEsalVirtualEntryPoint (mPlabel.EntryPoint, mPlabel.GP);\r
-\r
//\r
- // Clear out BootService globals\r
+ // Update global for Runtime Services Table\r
//\r
- gBS = NULL;\r
- gST = NULL;\r
- mRT = NULL;\r
+ EfiConvertPointer (0, (VOID **) &mRT);\r
}\r
\r
EFI_STATUS\r
+EFIAPI\r
RuntimeDriverLibConstruct (\r
IN EFI_HANDLE ImageHandle,\r
IN EFI_SYSTEM_TABLE *SystemTable\r
\r
Routine Description:\r
\r
- Intialize runtime Driver Lib if it has not yet been initialized. \r
+ Intialize runtime Driver Lib if it has not yet been initialized.\r
\r
Arguments:\r
\r
ImageHandle - The firmware allocated handle for the EFI image.\r
- \r
+\r
SystemTable - A pointer to the EFI System Table.\r
\r
GoVirtualChildEvent - Caller can register a virtual notification event.\r
\r
--*/\r
{\r
- EFI_PLABEL *Plabel;\r
EFI_STATUS Status;\r
\r
mRT = SystemTable->RuntimeServices;\r
\r
- //\r
- // The protocol contains a function pointer, which is an indirect procedure call.\r
- // An indirect procedure call goes through a plabel, and pointer to a function is\r
- // a pointer to a plabel. To implement indirect procedure calls that can work in\r
- // both physical and virtual mode, two plabels are required (one physical and one\r
- // virtual). So lets grap the physical PLABEL for the EsalEntryPoint and store it\r
- // away. We cache it in a module global, so we can register the vitrual version.\r
- //\r
- Status = gBS->LocateProtocol (&gEfiExtendedSalBootServiceProtocolGuid, NULL, &mEsalBootService);\r
- ASSERT_EFI_ERROR (Status);\r
-\r
- Plabel = (EFI_PLABEL *) (UINTN) mEsalBootService->ExtendedSalProc;\r
-\r
- mPlabel.EntryPoint = Plabel->EntryPoint;\r
- mPlabel.GP = Plabel->GP;\r
-\r
- SetEsalPhysicalEntryPoint (mPlabel.EntryPoint, mPlabel.GP);\r
-\r
- //\r
- // Register our ExitBootServices () notify function\r
- //\r
-\r
- Status = gBS->CreateEvent (\r
- EFI_EVENT_SIGNAL_EXIT_BOOT_SERVICES,\r
- EFI_TPL_NOTIFY,\r
- RuntimeDriverExitBootServices,\r
- NULL,\r
- &mRuntimeNotifyEvent\r
- );\r
- ASSERT_EFI_ERROR (Status);\r
-\r
//\r
// Register SetVirtualAddressMap () notify function\r
//\r
- \r
- Status = gBS->CreateEvent (\r
- EFI_EVENT_SIGNAL_VIRTUAL_ADDRESS_CHANGE,\r
- EFI_TPL_NOTIFY,\r
- RuntimeLibVirtualNotifyEvent,\r
- NULL,\r
- mEfiVirtualNotifyEvent\r
- );\r
- ASSERT_EFI_ERROR (Status);\r
+ if (_gDriverSetVirtualAddressMapEvent[0] != NULL) {\r
+ Status = gBS->CreateEvent (\r
+ EVT_SIGNAL_VIRTUAL_ADDRESS_CHANGE,\r
+ TPL_NOTIFY,\r
+ RuntimeLibVirtualNotifyEvent,\r
+ NULL,\r
+ &mEfiVirtualNotifyEvent\r
+ );\r
+ ASSERT_EFI_ERROR (Status);\r
+ }\r
\r
return EFI_SUCCESS;\r
}\r
\r
EFI_STATUS\r
+EFIAPI\r
RuntimeDriverLibDeconstruct (\r
- VOID\r
+ IN EFI_HANDLE ImageHandle,\r
+ IN EFI_SYSTEM_TABLE *SystemTable\r
)\r
/*++\r
\r
Routine Description:\r
\r
This routine will free some resources which have been allocated in\r
- EfiInitializeRuntimeDriverLib(). If a runtime driver exits with an error, \r
+ EfiInitializeRuntimeDriverLib(). If a runtime driver exits with an error,\r
it must call this routine to free the allocated resource before the exiting.\r
\r
Arguments:\r
\r
None\r
\r
-Returns: \r
+Returns:\r
\r
EFI_SUCCESS - Shotdown the Runtime Driver Lib successfully\r
EFI_UNSUPPORTED - Runtime Driver lib was not initialized at all\r
{\r
EFI_STATUS Status;\r
\r
- //\r
- // Close our ExitBootServices () notify function\r
- //\r
- Status = gBS->CloseEvent (mRuntimeNotifyEvent);\r
- ASSERT_EFI_ERROR (Status);\r
-\r
//\r
// Close SetVirtualAddressMap () notify function\r
//\r
- Status = gBS->CloseEvent (mEfiVirtualNotifyEvent);\r
- ASSERT_EFI_ERROR (Status);\r
+ if (_gDriverSetVirtualAddressMapEvent[0] != NULL) {\r
+ Status = gBS->CloseEvent (mEfiVirtualNotifyEvent);\r
+ ASSERT_EFI_ERROR (Status);\r
+ }\r
\r
return EFI_SUCCESS;\r
}\r
\r
BOOLEAN\r
+EFIAPI\r
EfiAtRuntime (\r
VOID\r
)\r
Arguments:\r
NONE\r
\r
-Returns: \r
+Returns:\r
TRUE - If ExitBootService () has been called\r
\r
--*/\r
{\r
- EFI_GUID Guid = EFI_EXTENDED_SAL_VIRTUAL_SERVICES_PROTOCOL_GUID;\r
+ EFI_GUID Guid;\r
SAL_RETURN_REGS ReturnReg;\r
\r
- ReturnReg = EfiCallEsalService (&Guid, IsEfiRuntime, 0, 0, 0, 0, 0, 0, 0);\r
+ *((UINT64 *) &Guid) = EFI_EXTENDED_SAL_VIRTUAL_SERVICES_PROTOCOL_GUID_LO;\r
+ *(((UINT64 *)&Guid) + 1) = EFI_EXTENDED_SAL_VIRTUAL_SERVICES_PROTOCOL_GUID_HI;\r
+\r
+ ReturnReg = EsalCall (&Guid, IsEfiRuntime, 0, 0, 0, 0, 0, 0, 0);\r
\r
return (BOOLEAN) (ReturnReg.r9 == 1);\r
}\r
\r
BOOLEAN\r
+EFIAPI\r
EfiGoneVirtual (\r
VOID\r
)\r
Arguments:\r
NONE\r
\r
-Returns: \r
+Returns:\r
TRUE - If SetVirtualAddressMap () has been called\r
\r
--*/\r
{\r
- EFI_GUID Guid = EFI_EXTENDED_SAL_VIRTUAL_SERVICES_PROTOCOL_GUID;\r
+ EFI_GUID Guid;\r
SAL_RETURN_REGS ReturnReg;\r
\r
- ReturnReg = EfiCallEsalService (&Guid, IsVirtual, 0, 0, 0, 0, 0, 0, 0);\r
+ *((UINT64 *) &Guid) = EFI_EXTENDED_SAL_VIRTUAL_SERVICES_PROTOCOL_GUID_LO;\r
+ *(((UINT64 *)&Guid) + 1) = EFI_EXTENDED_SAL_VIRTUAL_SERVICES_PROTOCOL_GUID_HI;\r
+\r
+ ReturnReg = EsalCall (&Guid, IsVirtual, 0, 0, 0, 0, 0, 0, 0);\r
\r
return (BOOLEAN) (ReturnReg.r9 == 1);\r
}\r
+\r
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