diff options
Diffstat (limited to 'MdeModulePkg/Library/VariablePolicyLib/VariablePolicyExtraInitRuntimeDxe.c')
| -rw-r--r-- | MdeModulePkg/Library/VariablePolicyLib/VariablePolicyExtraInitRuntimeDxe.c | 168 |
1 files changed, 84 insertions, 84 deletions
diff --git a/MdeModulePkg/Library/VariablePolicyLib/VariablePolicyExtraInitRuntimeDxe.c b/MdeModulePkg/Library/VariablePolicyLib/VariablePolicyExtraInitRuntimeDxe.c index ffd43dc549..b29c3c788b 100644 --- a/MdeModulePkg/Library/VariablePolicyLib/VariablePolicyExtraInitRuntimeDxe.c +++ b/MdeModulePkg/Library/VariablePolicyLib/VariablePolicyExtraInitRuntimeDxe.c @@ -1,84 +1,84 @@ -/** @file -- VariablePolicyExtraInitRuntimeDxe.c
-This file contains extra init and deinit routines that register and unregister
-VariableAddressChange callbacks.
-
-Copyright (c) Microsoft Corporation.
-SPDX-License-Identifier: BSD-2-Clause-Patent
-
-**/
-
-#include <Library/UefiBootServicesTableLib.h>
-#include <Library/UefiRuntimeServicesTableLib.h>
-
-extern EFI_GET_VARIABLE mGetVariableHelper;
-extern UINT8 *mPolicyTable;
-STATIC BOOLEAN mIsVirtualAddrConverted;
-STATIC EFI_EVENT mVariablePolicyLibVirtualAddressChangeEvent = NULL;
-
-/**
- For the RuntimeDxe version of this lib, convert internal pointer addresses to virtual addresses.
-
- @param[in] Event Event whose notification function is being invoked.
- @param[in] Context The pointer to the notification function's context, which
- is implementation-dependent.
-**/
-STATIC
-VOID
-EFIAPI
-VariablePolicyLibVirtualAddressCallback (
- IN EFI_EVENT Event,
- IN VOID *Context
- )
-{
- gRT->ConvertPointer (0, (VOID **)&mPolicyTable);
- gRT->ConvertPointer (0, (VOID **)&mGetVariableHelper);
- mIsVirtualAddrConverted = TRUE;
-}
-
-/**
- An extra init hook that enables the RuntimeDxe library instance to
- register VirtualAddress change callbacks. Among other things.
-
- @retval EFI_SUCCESS Everything is good. Continue with init.
- @retval Others Uh... don't continue.
-
-**/
-EFI_STATUS
-VariablePolicyExtraInit (
- VOID
- )
-{
- return gBS->CreateEventEx (
- EVT_NOTIFY_SIGNAL,
- TPL_NOTIFY,
- VariablePolicyLibVirtualAddressCallback,
- NULL,
- &gEfiEventVirtualAddressChangeGuid,
- &mVariablePolicyLibVirtualAddressChangeEvent
- );
-}
-
-/**
- An extra deinit hook that enables the RuntimeDxe library instance to
- register VirtualAddress change callbacks. Among other things.
-
- @retval EFI_SUCCESS Everything is good. Continue with deinit.
- @retval Others Uh... don't continue.
-
-**/
-EFI_STATUS
-VariablePolicyExtraDeinit (
- VOID
- )
-{
- EFI_STATUS Status;
-
- Status = EFI_SUCCESS;
- if (mIsVirtualAddrConverted) {
- Status = gBS->CloseEvent (mVariablePolicyLibVirtualAddressChangeEvent);
- } else {
- Status = EFI_SUCCESS;
- }
-
- return Status;
-}
+/** @file -- VariablePolicyExtraInitRuntimeDxe.c +This file contains extra init and deinit routines that register and unregister +VariableAddressChange callbacks. + +Copyright (c) Microsoft Corporation. +SPDX-License-Identifier: BSD-2-Clause-Patent + +**/ + +#include <Library/UefiBootServicesTableLib.h> +#include <Library/UefiRuntimeServicesTableLib.h> + +extern EFI_GET_VARIABLE mGetVariableHelper; +extern UINT8 *mPolicyTable; +STATIC BOOLEAN mIsVirtualAddrConverted; +STATIC EFI_EVENT mVariablePolicyLibVirtualAddressChangeEvent = NULL; + +/** + For the RuntimeDxe version of this lib, convert internal pointer addresses to virtual addresses. + + @param[in] Event Event whose notification function is being invoked. + @param[in] Context The pointer to the notification function's context, which + is implementation-dependent. +**/ +STATIC +VOID +EFIAPI +VariablePolicyLibVirtualAddressCallback ( + IN EFI_EVENT Event, + IN VOID *Context + ) +{ + gRT->ConvertPointer (0, (VOID **)&mPolicyTable); + gRT->ConvertPointer (0, (VOID **)&mGetVariableHelper); + mIsVirtualAddrConverted = TRUE; +} + +/** + An extra init hook that enables the RuntimeDxe library instance to + register VirtualAddress change callbacks. Among other things. + + @retval EFI_SUCCESS Everything is good. Continue with init. + @retval Others Uh... don't continue. + +**/ +EFI_STATUS +VariablePolicyExtraInit ( + VOID + ) +{ + return gBS->CreateEventEx ( + EVT_NOTIFY_SIGNAL, + TPL_NOTIFY, + VariablePolicyLibVirtualAddressCallback, + NULL, + &gEfiEventVirtualAddressChangeGuid, + &mVariablePolicyLibVirtualAddressChangeEvent + ); +} + +/** + An extra deinit hook that enables the RuntimeDxe library instance to + register VirtualAddress change callbacks. Among other things. + + @retval EFI_SUCCESS Everything is good. Continue with deinit. + @retval Others Uh... don't continue. + +**/ +EFI_STATUS +VariablePolicyExtraDeinit ( + VOID + ) +{ + EFI_STATUS Status; + + Status = EFI_SUCCESS; + if (mIsVirtualAddrConverted) { + Status = gBS->CloseEvent (mVariablePolicyLibVirtualAddressChangeEvent); + } else { + Status = EFI_SUCCESS; + } + + return Status; +} |