7ad30299da
We do table search in many places doing exactly the same algorithm. The only minor variance in users is which table is used if several entries are present. As specification mandates uniqueness and even if it ever isn't, first entry is good enough, unify this code and always use the first entry. Signed-off-by: Vladimir Serbinenko <phcoder@gmail.com> Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
36 lines
1.2 KiB
C
36 lines
1.2 KiB
C
/* fdt.c - EFI Flattened Device Tree interaction */
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/*
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* GRUB -- GRand Unified Bootloader
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* Copyright (C) 2006,2007 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/efi/efi.h>
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#include <grub/mm.h>
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void *
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grub_efi_get_firmware_fdt (void)
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{
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static grub_guid_t fdt_guid = GRUB_EFI_DEVICE_TREE_GUID;
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void *firmware_fdt = grub_efi_find_configuration_table (&fdt_guid);
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if (firmware_fdt) {
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grub_dprintf ("linux", "found registered FDT @ %p\n", firmware_fdt);
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} else {
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grub_dprintf ("linux", "not found registered FDT\n");
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}
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return firmware_fdt;
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}
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