373 lines
8.1 KiB
C
373 lines
8.1 KiB
C
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/*++
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Copyright (c) 1992 Microsoft Corporation
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Module Name:
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initia64.c
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Abstract:
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Does any ia64-specific initialization, then starts the common ARC osloader
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Author:
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John Vert (jvert) 4-Nov-1993
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Revision History:
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--*/
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#include "bldria64.h"
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#include "msg.h"
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#include <netboot.h>
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#include <string.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <efi.h>
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UCHAR Argv0String[100];
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UCHAR BootPartitionName[80];
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UCHAR KernelBootDevice[80];
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UCHAR OsLoadFilename[100];
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UCHAR OsLoaderFilename[100];
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UCHAR SystemPartition[100];
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UCHAR OsLoadPartition[100];
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UCHAR OsLoadOptions[100];
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UCHAR ConsoleInputName[50];
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UCHAR ConsoleOutputName[50];
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UCHAR FullKernelPath[200];
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ARC_STATUS
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BlGetEfiBootOptions(
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OUT PUCHAR Argv0String OPTIONAL,
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OUT PUCHAR SystemPartition OPTIONAL,
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OUT PUCHAR OsLoaderFilename OPTIONAL,
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OUT PUCHAR OsLoadPartition OPTIONAL,
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OUT PUCHAR OsLoadFilename OPTIONAL,
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OUT PUCHAR FullKernelPath OPTIONAL,
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OUT PUCHAR OsLoadOptions OPTIONAL
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);
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BlPreProcessLoadOptions(
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PCHAR szOsLoadOptions
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);
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#define MAXBOOTVARSIZE 1024
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VOID
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BlpTruncateMemory (
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IN ULONG MaxMemory
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);
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#if defined(_MERCED_A0_)
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VOID
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KiProcessorWorkAround(
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);
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#endif
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VOID
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BlStartup(
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IN PCHAR PartitionName
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)
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/*++
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Routine Description:
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Does Intel-specific initialization, particularly presenting the boot.ini
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menu and running NTDETECT, then calls to the common osloader.
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Arguments:
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PartitionName - Supplies the ARC name of the partition (or floppy) that
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setupldr was loaded from.
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Return Value:
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Does not return
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--*/
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{
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ULONG Argc = 0;
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PUCHAR Argv[10];
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ARC_STATUS Status;
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ULONG BootFileId;
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PCHAR BootFile;
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ULONG Read;
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#if !defined(NO_LEGACY_DRIVERS)
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PCHAR p;
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#endif
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ULONG i;
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ULONG DriveId;
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ULONG FileSize;
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ULONG Count;
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LARGE_INTEGER SeekPosition;
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PCHAR LoadOptions = NULL;
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#ifdef FW_HEAP
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extern BOOLEAN FwDescriptorsValid;
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#endif
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PCHAR BadLinkName = NULL;
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UNREFERENCED_PARAMETER( PartitionName );
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//
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// Initialize ARC StdIo functionality
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//
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strcpy(ConsoleInputName,"consolein=multi(0)key(0)keyboard(0)");
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strcpy(ConsoleOutputName,"consoleout=multi(0)video(0)monitor(0)");
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Argv[0]=ConsoleInputName;
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Argv[1]=ConsoleOutputName;
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BlInitStdio (2, Argv);
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//
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// Check ntldr partition for hiberation image
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//
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do {
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BlClearScreen();
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Status = BlGetEfiBootOptions(
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Argv0String,
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SystemPartition,
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OsLoaderFilename,
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OsLoadPartition,
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OsLoadFilename,
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FullKernelPath,
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OsLoadOptions
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);
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if ( Status != ESUCCESS ) {
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BlPrint(BlFindMessage(BL_EFI_OPTION_FAILURE));
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goto BootFailed;
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}
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BlClearScreen();
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#if !defined(NO_LEGACY_DRIVERS)
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p = FullKernelPath;
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//
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// Initialize SCSI boot driver, if necessary.
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//
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if(!_strnicmp(p,"scsi(",5)) {
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AEInitializeIo(DriveId);
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}
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#endif // NO_LEGACY_DRIVERS
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#if FW_HEAP
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//
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// Indicate that fw memory descriptors cannot be changed from
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// now on.
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//
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FwDescriptorsValid = FALSE;
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#endif
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//
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// convert it to all one case
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//
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if (OsLoadOptions[0]) {
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_strupr(OsLoadOptions);
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}
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Argv[Argc++]=Argv0String;
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Argv[Argc++]=OsLoaderFilename;
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Argv[Argc++]=SystemPartition;
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Argv[Argc++]=OsLoadFilename;
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Argv[Argc++]=OsLoadPartition;
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Argv[Argc++]=OsLoadOptions;
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BlPreProcessLoadOptions( OsLoadOptions );
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//
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// In the x86 case, we would have already initialized the
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// headless port so that the user could actually make his
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// boot selection over the headless port. However, on ia64,
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// that selection is happening during firmware.
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//
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// If the user wants us to redirect (via the OsLoadOptions), then
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// we should try to do it here.
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//
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if( strstr(OsLoadOptions, "/REDIRECT")) {
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//
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// Yep, then want us to redirect. Try and initialize the
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// port.
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//
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BlInitializeHeadlessPort();
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#if 0
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if( LoaderRedirectionInformation.PortNumber == 0 ) {
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//
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// We couldn't get any redirection information
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// from the firmware. But the user really wants
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// us to redirect. Better guess.
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//
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LoaderRedirectionInformation.PortNumber = 1;
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LoaderRedirectionInformation.BaudRate = 9600;
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//
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// Now try again, this time with feeling...
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//
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BlInitializeHeadlessPort();
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}
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#endif
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}
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Status = BlOsLoader( Argc, Argv, NULL );
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BootFailed:
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if (Status != ESUCCESS) {
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//
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// Boot failed, wait for reboot
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//
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while (TRUE) {
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while (!BlGetKey()); // BOOT FAILED!
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if (BlTerminalHandleLoaderFailure()) {
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ArcRestart();
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}
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}
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}
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} while (TRUE);
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}
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BlPreProcessLoadOptions(
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PCHAR szOsLoadOptions
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)
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{
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CHAR szTemp[MAXBOOTVARSIZE];
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PCHAR p;
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ULONG MaxMemory = 0;
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ULONG ConfigFlagValue=0;
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strcpy( szTemp, szOsLoadOptions );
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_strupr( szTemp );
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#if 0
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if( p = strstr( szTemp, ";" ) ) {
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*p = '\0';
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}
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#endif
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//
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// Process MAXMEM
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//
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if( p = strstr( szTemp, "/MAXMEM=" ) ) {
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MaxMemory = atoi( p + sizeof("/MAXMEM=") - 1 );
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BlpTruncateMemory( MaxMemory );
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}
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#if defined(_MERCED_A0_)
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//
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// Process CONFIGFLAG
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//
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if ( p = strstr(szTemp, "CONFIGFLAG") ) {
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if ( p = strstr(p, "=") ) {
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ConfigFlagValue = atol(p+1);
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KiProcessorWorkAround(ConfigFlagValue);
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}
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}
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#endif
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}
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BOOLEAN
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WillMemoryBeUsableByOs(
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IN MEMORY_TYPE Type
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)
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{
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BOOLEAN RetVal = FALSE;
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switch (Type) {
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case MemoryFree:
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case MemoryFreeContiguous:
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case MemoryFirmwareTemporary:
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case MemorySpecialMemory:
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RetVal = TRUE;
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}
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return(RetVal);
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}
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VOID
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BlpTruncateMemory (
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IN ULONG MaxMemory
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)
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/*++
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Routine Description:
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Eliminates all the memory descriptors above a given boundary
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Arguments:
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MaxMemory - Supplies the maximum memory boundary in megabytes
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Return Value:
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None.
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--*/
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{
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ULONG MaxPage = (MaxMemory * _1MB );
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PLIST_ENTRY Current;
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PMEMORY_ALLOCATION_DESCRIPTOR MemoryDescriptor;
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if (MaxMemory == 0) {
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return;
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}
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Current = BlLoaderBlock->MemoryDescriptorListHead.Flink;
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while (Current != &BlLoaderBlock->MemoryDescriptorListHead) {
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MemoryDescriptor = CONTAINING_RECORD(Current,
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MEMORY_ALLOCATION_DESCRIPTOR,
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ListEntry);
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Current = Current->Flink;
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if (WillMemoryBeUsableByOs(MemoryDescriptor->MemoryType)) {
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if (MemoryDescriptor->BasePage >= MaxPage) {
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//
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// This memory descriptor lies entirely above the boundary,
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// mark it as firmware permanent. this is easier than
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// unlinking the entry and has the same effect since no one
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// can use this memory.
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//
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MemoryDescriptor->MemoryType = MemoryFirmwarePermanent;
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} else if (MemoryDescriptor->BasePage + MemoryDescriptor->PageCount > MaxPage) {
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//
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// This memory descriptor crosses the boundary, truncate it.
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//
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MemoryDescriptor->PageCount = MaxPage - MemoryDescriptor->BasePage;
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} else {
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//
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// This one's ok, keep it.
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//
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}
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} else {
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//
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// skip it
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//
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}
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}
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}
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