4241d2b13a
* disk/ata.c: Spelling fixes. * disk/raid.c: Likewise. * disk/usbms.c: Likewise. * disk/dmraid_nvidia.c: Likewise. * kern/ieee1275/openfw.c: Likewise. * kern/ieee1275/init.c: Likewise. * kern/ieee1275/cmain.c: Likewise. * boot/i386/pc/cdboot.S: Likewise. * video/readers/png.c: Likewise. * video/i386/pc/vbe.c: Likewise. * fs/udf.c: Likewise. * fs/hfs.c: Likewise. * fs/reiserfs.c: Likewise. * efiemu/runtime/efiemu.c: Likewise. * efiemu/main.c: Likewise. * efiemu/mm.c: Likewise. * include/grub/elf.h: Likewise. * include/grub/xnu.h: Likewise. * include/grub/usbdesc.h: Likewise. * include/grub/usb.h: Likewise. * include/grub/script_sh.h: Likewise. * include/grub/lib/LzmaEnc.h: Likewise. * include/grub/efiemu/efiemu.h: Likewise. * include/grub/command.h: Likewise. * normal/menu.c: Likewise. * normal/main.c: Likewise. * normal/datetime.c: Likewise. * bus/usb/uhci.c: Likewise. * mmap/i386/uppermem.c: Likewise. * mmap/mmap.c: Likewise. * commands/acpi.c: Likewise. * commands/test.c: Likewise. * partmap/apple.c: Likewise. * font/font.c: Likewise. * loader/sparc64/ieee1275/linux.c: Likewise. * loader/macho.c: Likewise. * loader/i386/bsd_trampoline.S: Likewise. * loader/i386/bsd.c: Likewise. * loader/xnu.c: Likewise. * term/i386/pc/vesafb.c: Likewise. * term/usb_keyboard.c: Likewise. * util/resolve.c: Likewise. * util/getroot.c: Likewise.
85 lines
2.3 KiB
C
85 lines
2.3 KiB
C
/* Compute amount of lower and upper memory till the first hole. */
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/*
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* GRUB -- GRand Unified Bootloader
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* Copyright (C) 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/memory.h>
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#include <grub/mm.h>
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#include <grub/misc.h>
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grub_uint64_t
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grub_mmap_get_lower (void)
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{
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grub_uint64_t lower = 0;
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auto int NESTED_FUNC_ATTR hook (grub_uint64_t, grub_uint64_t, grub_uint32_t);
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int NESTED_FUNC_ATTR hook (grub_uint64_t addr, grub_uint64_t size,
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grub_uint32_t type)
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{
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if (type != GRUB_MACHINE_MEMORY_AVAILABLE)
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return 0;
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if (addr == 0)
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lower = size;
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return 0;
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}
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grub_mmap_iterate (hook);
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if (lower > 0x100000)
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lower = 0x100000;
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return lower;
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}
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grub_uint64_t
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grub_mmap_get_upper (void)
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{
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grub_uint64_t upper = 0;
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auto int NESTED_FUNC_ATTR hook (grub_uint64_t, grub_uint64_t, grub_uint32_t);
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int NESTED_FUNC_ATTR hook (grub_uint64_t addr, grub_uint64_t size,
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grub_uint32_t type)
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{
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if (type != GRUB_MACHINE_MEMORY_AVAILABLE)
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return 0;
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if (addr <= 0x100000 && addr + size > 0x100000)
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upper = addr + size - 0x100000;
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return 0;
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}
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grub_mmap_iterate (hook);
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return upper;
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}
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/* Count the continuous bytes after 64 MiB. */
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grub_uint64_t
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grub_mmap_get_post64 (void)
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{
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grub_uint64_t post64 = 0;
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auto int NESTED_FUNC_ATTR hook (grub_uint64_t, grub_uint64_t, grub_uint32_t);
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int NESTED_FUNC_ATTR hook (grub_uint64_t addr, grub_uint64_t size,
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grub_uint32_t type)
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{
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if (type != GRUB_MACHINE_MEMORY_AVAILABLE)
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return 0;
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if (addr <= 0x4000000 && addr + size > 0x4000000)
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post64 = addr + size - 0x4000000;
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return 0;
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}
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grub_mmap_iterate (hook);
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return post64;
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}
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