08bcec5020
* include/grub/i386/relocator.h (grub_relocator16_state): New member ebp. * grub-core/lib/i386/relocator.c (grub_relocator16_ebp): New extern variable. (grub_relocator16_boot): Handle %ebp. * grub-core/lib/i386/relocator16.S: Likewise. * grub-core/loader/i386/pc/freedos.c: Load BPB to pass kernel which partition to load from. Check that kernel file is not too large. Set register dl to BIOS unit number as well.
79 lines
2 KiB
C
79 lines
2 KiB
C
/*
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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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#ifndef GRUB_RELOCATOR_CPU_HEADER
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#define GRUB_RELOCATOR_CPU_HEADER 1
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#include <grub/types.h>
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#include <grub/err.h>
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#include <grub/relocator.h>
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struct grub_relocator32_state
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{
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grub_uint32_t esp;
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grub_uint32_t ebp;
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grub_uint32_t eax;
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grub_uint32_t ebx;
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grub_uint32_t ecx;
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grub_uint32_t edx;
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grub_uint32_t eip;
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grub_uint32_t esi;
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grub_uint32_t edi;
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};
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struct grub_relocator16_state
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{
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grub_uint16_t cs;
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grub_uint16_t ds;
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grub_uint16_t es;
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grub_uint16_t fs;
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grub_uint16_t gs;
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grub_uint16_t ss;
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grub_uint16_t sp;
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grub_uint16_t ip;
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grub_uint32_t ebx;
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grub_uint32_t edx;
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grub_uint32_t esi;
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grub_uint32_t ebp;
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int a20;
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};
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struct grub_relocator64_state
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{
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grub_uint64_t rsp;
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grub_uint64_t rax;
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grub_uint64_t rbx;
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grub_uint64_t rcx;
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grub_uint64_t rdx;
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grub_uint64_t rip;
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grub_uint64_t rsi;
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grub_addr_t cr3;
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};
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grub_err_t grub_relocator16_boot (struct grub_relocator *rel,
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struct grub_relocator16_state state);
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grub_err_t grub_relocator32_boot (struct grub_relocator *rel,
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struct grub_relocator32_state state,
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int avoid_efi_bootservices);
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grub_err_t grub_relocator64_boot (struct grub_relocator *rel,
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struct grub_relocator64_state state,
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grub_addr_t min_addr, grub_addr_t max_addr);
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#endif /* ! GRUB_RELOCATOR_CPU_HEADER */
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