mirror of
https://git.proxmox.com/git/grub2
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243 lines
6.3 KiB
C
243 lines
6.3 KiB
C
/* appleloader.c - apple legacy boot loader. */
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/*
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* GRUB -- GRand Unified Bootloader
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* Copyright (C) 2008,2009 Free Software Foundation, Inc.
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*
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* GRUB 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 3 of the License, or
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* (at your option) any later version.
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*
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* GRUB 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 GRUB. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <grub/loader.h>
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#include <grub/err.h>
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#include <grub/mm.h>
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#include <grub/dl.h>
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#include <grub/misc.h>
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#include <grub/efi/api.h>
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#include <grub/efi/efi.h>
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#include <grub/command.h>
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#include <grub/i18n.h>
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GRUB_MOD_LICENSE ("GPLv3+");
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static grub_dl_t my_mod;
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static grub_efi_handle_t image_handle;
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static grub_efi_char16_t *cmdline;
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static grub_err_t
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grub_appleloader_unload (void)
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{
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grub_efi_boot_services_t *b;
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b = grub_efi_system_table->boot_services;
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efi_call_1 (b->unload_image, image_handle);
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grub_free (cmdline);
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cmdline = 0;
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grub_dl_unref (my_mod);
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return GRUB_ERR_NONE;
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}
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static grub_err_t
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grub_appleloader_boot (void)
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{
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grub_efi_boot_services_t *b;
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b = grub_efi_system_table->boot_services;
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efi_call_3 (b->start_image, image_handle, 0, 0);
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grub_appleloader_unload ();
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return grub_errno;
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}
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struct piwg_full_device_path
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{
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struct grub_efi_memory_mapped_device_path comp1;
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struct grub_efi_piwg_device_path comp2;
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struct grub_efi_device_path end;
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};
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#define MAKE_PIWG_PATH(st, en) \
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{ \
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.comp1 = \
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{ \
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.header = { \
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.type = GRUB_EFI_HARDWARE_DEVICE_PATH_TYPE, \
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.subtype = GRUB_EFI_MEMORY_MAPPED_DEVICE_PATH_SUBTYPE, \
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.length = sizeof (struct grub_efi_memory_mapped_device_path) \
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}, \
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.memory_type = GRUB_EFI_MEMORY_MAPPED_IO, \
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.start_address = st, \
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.end_address = en \
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}, \
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.comp2 = \
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{ \
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.header = { \
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.type = GRUB_EFI_MEDIA_DEVICE_PATH_TYPE, \
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.subtype = GRUB_EFI_PIWG_DEVICE_PATH_SUBTYPE, \
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.length = sizeof (struct grub_efi_piwg_device_path) \
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}, \
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.guid = GRUB_EFI_VENDOR_APPLE_GUID \
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}, \
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.end = \
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{ \
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.type = GRUB_EFI_END_DEVICE_PATH_TYPE, \
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.subtype = GRUB_EFI_END_ENTIRE_DEVICE_PATH_SUBTYPE, \
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.length = sizeof (struct grub_efi_device_path) \
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} \
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}
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/* early 2006 Core Duo / Core Solo models */
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static struct piwg_full_device_path devpath_1 = MAKE_PIWG_PATH (0xffe00000,
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0xfff9ffff);
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/* mid-2006 Mac Pro (and probably other Core 2 models) */
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static struct piwg_full_device_path devpath_2 = MAKE_PIWG_PATH (0xffe00000,
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0xfff7ffff);
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/* mid-2007 MBP ("Santa Rosa" based models) */
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static struct piwg_full_device_path devpath_3 = MAKE_PIWG_PATH (0xffe00000,
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0xfff8ffff);
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/* early-2008 MBA */
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static struct piwg_full_device_path devpath_4 = MAKE_PIWG_PATH (0xffc00000,
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0xfff8ffff);
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/* late-2008 MB/MBP (NVidia chipset) */
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static struct piwg_full_device_path devpath_5 = MAKE_PIWG_PATH (0xffcb4000,
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0xffffbfff);
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/* mid-2010 MB/MBP (NVidia chipset) */
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static struct piwg_full_device_path devpath_6 = MAKE_PIWG_PATH (0xffcc4000,
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0xffffbfff);
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static struct piwg_full_device_path devpath_7 = MAKE_PIWG_PATH (0xff981000,
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0xffc8ffff);
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/* mid-2012 MBP retina (MacBookPro10,1) */
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static struct piwg_full_device_path devpath_8 = MAKE_PIWG_PATH (0xff990000,
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0xffb2ffff);
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struct devdata
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{
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const char *model;
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grub_efi_device_path_t *devpath;
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};
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struct devdata devs[] =
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{
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{"Core Duo/Solo", (grub_efi_device_path_t *) &devpath_1},
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{"Mac Pro", (grub_efi_device_path_t *) &devpath_2},
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{"MBP", (grub_efi_device_path_t *) &devpath_3},
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{"MBA", (grub_efi_device_path_t *) &devpath_4},
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{"MB NV", (grub_efi_device_path_t *) &devpath_5},
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{"MB NV2", (grub_efi_device_path_t *) &devpath_6},
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{"MBP2011", (grub_efi_device_path_t *) &devpath_7},
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{"MBP2012", (grub_efi_device_path_t *) &devpath_8},
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{NULL, NULL},
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};
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static grub_err_t
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grub_cmd_appleloader (grub_command_t cmd __attribute__ ((unused)),
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int argc, char *argv[])
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{
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grub_efi_boot_services_t *b;
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grub_efi_loaded_image_t *loaded_image;
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struct devdata *pdev;
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grub_dl_ref (my_mod);
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/* Initialize some global variables. */
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image_handle = 0;
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b = grub_efi_system_table->boot_services;
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for (pdev = devs ; pdev->devpath ; pdev++)
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if (efi_call_6 (b->load_image, 0, grub_efi_image_handle, pdev->devpath,
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NULL, 0, &image_handle) == GRUB_EFI_SUCCESS)
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break;
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if (! pdev->devpath)
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{
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grub_error (GRUB_ERR_BAD_OS, "can't find model");
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goto fail;
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}
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grub_dprintf ("appleload", "Model: %s\n", pdev->model);
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loaded_image = grub_efi_get_loaded_image (image_handle);
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if (! loaded_image)
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{
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grub_error (GRUB_ERR_BAD_OS, "no loaded image available");
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goto fail;
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}
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if (argc > 0)
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{
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int i, len;
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grub_efi_char16_t *p16;
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for (i = 0, len = 0; i < argc; i++)
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len += grub_strlen (argv[i]) + 1;
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len *= sizeof (grub_efi_char16_t);
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cmdline = p16 = grub_malloc (len);
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if (! cmdline)
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goto fail;
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for (i = 0; i < argc; i++)
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{
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char *p8;
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p8 = argv[i];
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while (*p8)
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*(p16++) = *(p8++);
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*(p16++) = ' ';
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}
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*(--p16) = 0;
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loaded_image->load_options = cmdline;
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loaded_image->load_options_size = len;
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}
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grub_loader_set (grub_appleloader_boot, grub_appleloader_unload, 0);
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return 0;
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fail:
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grub_dl_unref (my_mod);
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return grub_errno;
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}
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static grub_command_t cmd;
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GRUB_MOD_INIT(appleloader)
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{
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cmd = grub_register_command ("appleloader", grub_cmd_appleloader,
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N_("[OPTS]"),
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/* TRANSLATORS: This command is used on EFI to
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switch to BIOS mode and boot the OS requiring
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BIOS. */
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N_("Boot BIOS-based system."));
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my_mod = mod;
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}
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GRUB_MOD_FINI(appleloader)
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{
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grub_unregister_command (cmd);
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}
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