131 lines
2.5 KiB
C
131 lines
2.5 KiB
C
/** @file
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Copyright (C) 2019, vit9696. All rights reserved.
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All rights reserved.
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This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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**/
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#include "OpenRuntimePrivate.h"
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#include <Library/BaseMemoryLib.h>
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#include <Library/DebugLib.h>
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#include <Library/OcBootManagementLib.h>
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#include <Library/UefiBootServicesTableLib.h>
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#include <Library/UefiRuntimeServicesTableLib.h>
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#include <Protocol/LoadedImage.h>
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#include <Protocol/OcFirmwareRuntime.h>
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STATIC
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VOID
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EFIAPI
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FwGetCurrent (
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OUT OC_FWRT_CONFIG *Config
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)
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{
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CopyMem (Config, gCurrentConfig, sizeof (*Config));
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}
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STATIC
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VOID
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EFIAPI
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FwSetMain (
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IN CONST OC_FWRT_CONFIG *Config
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)
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{
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CopyMem (&gMainConfig, Config, sizeof (gMainConfig));
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}
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STATIC
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VOID
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EFIAPI
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FwSetOverride (
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IN CONST OC_FWRT_CONFIG *Config
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)
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{
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if (Config != NULL) {
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CopyMem (&gOverrideConfig, Config, sizeof (gOverrideConfig));
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gCurrentConfig = &gOverrideConfig;
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} else {
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gCurrentConfig = &gMainConfig;
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}
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}
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STATIC
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EFI_STATUS
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EFIAPI
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FwGetExecArea (
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OUT EFI_PHYSICAL_ADDRESS *BaseAddress,
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OUT UINTN *Pages
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)
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{
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//
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// FIXME: This is not accurate, but it does not need to be for now.
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//
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*BaseAddress = (EFI_PHYSICAL_ADDRESS)(UINTN) FwGetCurrent;
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*Pages = 1;
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return EFI_SUCCESS;
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}
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STATIC
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OC_FIRMWARE_RUNTIME_PROTOCOL
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mOcFirmwareRuntimeProtocol = {
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OC_FIRMWARE_RUNTIME_REVISION,
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FwGetCurrent,
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FwSetMain,
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FwSetOverride,
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FwOnGetVariable,
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FwGetExecArea
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};
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EFI_STATUS
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EFIAPI
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UefiEntrypoint (
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IN EFI_HANDLE ImageHandle,
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IN EFI_SYSTEM_TABLE *SystemTable
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)
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{
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EFI_STATUS Status;
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VOID *Interface;
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EFI_HANDLE Handle;
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Status = gBS->LocateProtocol (
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&gOcFirmwareRuntimeProtocolGuid,
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NULL,
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&Interface
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);
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if (!EFI_ERROR(Status)) {
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//
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// In case for whatever reason one tried to reload the driver.
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//
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return EFI_ALREADY_STARTED;
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}
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//
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// Activate main configuration.
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//
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gCurrentConfig = &gMainConfig;
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RedirectRuntimeServices ();
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Handle = NULL;
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Status = gBS->InstallMultipleProtocolInterfaces (
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&Handle,
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&gOcFirmwareRuntimeProtocolGuid,
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&mOcFirmwareRuntimeProtocol,
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NULL
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);
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ASSERT_EFI_ERROR(Status);
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return EFI_SUCCESS;
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}
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