105 lines
3.1 KiB
C
105 lines
3.1 KiB
C
/**
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* PROJECT: ExectOS
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* COPYRIGHT: See COPYING.md in the top level directory
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* FILE: xtldr/xtldr.c
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* DESCRIPTION: XTOS UEFI Boot Loader
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* DEVELOPERS: Rafal Kupiec <belliash@codingworkshop.eu.org>
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*/
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#include <xtldr.h>
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/**
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* This routine is the entry point of the XT EFI boot loader.
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*
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* @param ImageHandle
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* Firmware-allocated handle that identifies the image.
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*
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* @param SystemTable
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* Provides the EFI system table.
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*
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* @return This routine returns status code.
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*
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* @since XT 1.0
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*/
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XTCDECL
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EFI_STATUS
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BlStartXtLoader(IN EFI_HANDLE ImageHandle,
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IN PEFI_SYSTEM_TABLE SystemTable)
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{
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EFI_STATUS Status;
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/* Set the system table and image handle */
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EfiImageHandle = ImageHandle;
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EfiSystemTable = SystemTable;
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/* Initialize XTLDR and early print XTLDR version */
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BlpInitializeEfiBootLoader();
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BlConsolePrint(L"XTLDR boot loader v%s\n", XTOS_VERSION);
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/* Parse configuration options passed from UEFI shell */
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Status = BlpParseCommandLine();
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if(Status != STATUS_EFI_SUCCESS)
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{
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/* Failed to parse command line options */
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BlDisplayErrorDialog(L"XTLDR", L"Failed to parse command line parameters.");
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}
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/* Attempt to early initialize debug console */
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if(DEBUG)
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{
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Status = BlpInitializeDebugConsole();
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if(Status != STATUS_EFI_SUCCESS)
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{
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/* Initialization failed, notify user on stdout */
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BlDisplayErrorDialog(L"XTLDR", L"Failed to initialize debug console.");
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}
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}
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/* Load XTLDR configuration file */
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Status = BlpLoadConfiguration();
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if(Status != STATUS_EFI_SUCCESS)
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{
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/* Failed to load/parse config file */
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BlDisplayErrorDialog(L"XTLDR", L"Failed to load and parse configuration file.");
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}
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/* Reinitialize debug console if it was not initialized earlier */
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if(DEBUG)
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{
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Status = BlpInitializeDebugConsole();
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if(Status != STATUS_EFI_SUCCESS)
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{
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/* Initialization failed, notify user on stdout */
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BlDisplayErrorDialog(L"XTLDR", L"Failed to initialize debug console.");
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}
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}
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/* Disable watchdog timer */
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Status = EfiSystemTable->BootServices->SetWatchdogTimer(0, 0x10000, 0, NULL);
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if(Status != STATUS_EFI_SUCCESS)
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{
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/* Failed to disable the timer, print message */
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BlDebugPrint(L"WARNING: Failed to disable watchdog timer\n");
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}
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/* Register loader protocol */
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Status = BlpRegisterXtLoaderProtocol();
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if(Status != STATUS_EFI_SUCCESS)
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{
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/* Failed to register loader protocol */
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BlDebugPrint(L"ERROR: Failed to register XTLDR boot protocol\n");
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}
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/* Discover and enumerate EFI block devices */
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Status = BlEnumerateBlockDevices();
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if(Status != STATUS_EFI_SUCCESS)
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{
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/* Failed to enumerate block devices */
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BlDebugPrint(L"ERROR: Failed to discover and enumerate block devices\n");
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}
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/* This point should be never reached, if this happen return error code */
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return STATUS_EFI_LOAD_ERROR;
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}
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