138 lines
3.5 KiB
C
138 lines
3.5 KiB
C
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/*
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* Copyright (C) 2001-2003 Hewlett-Packard Co.
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* Contributed by Stephane Eranian <eranian@hpl.hp.com>
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*
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* This file is part of the ELILO, the EFI Linux boot loader.
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*
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* ELILO is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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*
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* ELILO is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with ELILO; see the file COPYING. If not, write to the Free
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* Software Foundation, 59 Temple Place - Suite 330, Boston, MA
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* 02111-1307, USA.
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*
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* Please check out the elilo.txt for complete documentation on how
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* to use this program.
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*/
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/*
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* this file contains all the IA-64 specific code expected by generic loader
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*/
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#include <efi.h>
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#include <efilib.h>
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#include "elilo.h"
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#include "loader.h"
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#include "private.h"
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extern loader_ops_t plain_loader, gzip_loader;
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/*
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* IA-64 specific boot paramters initialization routine
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*/
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INTN
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sysdeps_create_boot_params(boot_params_t *bp, CHAR8 *cmdline, memdesc_t *initrd, UINTN *cookie)
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{
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UINTN cols, rows;
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SIMPLE_TEXT_OUTPUT_INTERFACE *conout;
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EFI_STATUS status;
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mmap_desc_t mdesc;
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/*
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* retrieve address of FPSWA interface
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* if not found, argument is not touched
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* will be 0 because of Memset()
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*/
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query_fpswa((VOID **)&bp->fpswa);
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if (get_memmap(&mdesc) == -1) return -1;
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DBG_PRT((L"Got memory map @ 0x%lx (%d bytes)", mdesc.md, mdesc.map_size));
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bp->efi_systab = (UINTN)systab;
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bp->efi_memmap = (UINTN)mdesc.md;
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bp->efi_memmap_size = mdesc.map_size;
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bp->efi_memdesc_size = mdesc.desc_size;
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bp->efi_memdesc_version = mdesc.desc_version;
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bp->command_line = (UINTN)cmdline;
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bp->initrd_start = (UINTN) initrd->start_addr;
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bp->initrd_size = initrd->pgcnt << EFI_PAGE_SHIFT;
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/* fetch console parameters: */
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conout = systab->ConOut;
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status = conout->QueryMode(conout, conout->Mode->Mode, &cols, &rows);
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if (EFI_ERROR(status)) {
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ERR_PRT((L"boot_params QueryMode failed %r", status));
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goto error;
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}
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DBG_PRT((L"Got console info: cols=%d rows=%d x=%d y=%d",
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cols, rows, conout->Mode->CursorColumn, conout->Mode->CursorRow));
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bp->console_info.num_cols = cols;
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bp->console_info.num_rows = rows;
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bp->console_info.orig_x = conout->Mode->CursorColumn;
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bp->console_info.orig_y = conout->Mode->CursorRow;
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*cookie = mdesc.cookie;
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return 0;
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error:
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/* free descriptors' memory */
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free_memmap(&mdesc);
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return -1;
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}
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VOID
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sysdeps_free_boot_params(boot_params_t *bp)
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{
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mmap_desc_t md;
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Memset(&md, 0, sizeof(md));
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md.md = (VOID *)bp->efi_memmap;
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free_memmap(&md);
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}
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INTN
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sysdeps_init(EFI_HANDLE dev)
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{
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loader_register(&plain_loader);
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loader_register(&gzip_loader);
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return 0;
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}
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INTN
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sysdeps_initrd_get_addr(kdesc_t *kd, memdesc_t *imem)
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{
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/*
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* We currently place the initrd at the next page aligned boundary
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* after the kernel.
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*
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* Current kernel implementation requires this (see arch/ia64/kernel/setup.c).
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*
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* IMPORTANT: EFI & kernel page sizes may differ. We have no way
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* of guessing what size the kernel uses. It is the responsibility
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* of the kernel to adjust.
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*
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*/
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#if 0
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imem->start_addr = (VOID *)ROUNDUP((UINTN)kd->kend, EFI_PAGE_SIZE);
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#else
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imem->start_addr = 0; /* let the allocator decide */
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#endif
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return 0;
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}
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