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https://git.proxmox.com/git/grub2
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94f064b4c9
* include/grub/i386/pc/int.h (grub_i386_idt): New struct. (grub_realidt): New var. * grub-core/lib/i386/relocator16.S (grub_relocator16_idt): New variable Load idt. * grub-core/lib/i386/relocator.c (grub_relocator16_idt): New declaration. (grub_relocator16_boot): Set grub_relocator16_idt. * grub-core/kern/i386/realmode.S (realidt): Renamed to ... (LOCAL(realidt)): ... this. * grub-core/boot/i386/pc/startup_raw.S: Pass pointer to realidt in eax. * grub-core/kern/i386/pc/startup.S: Save pointer to realidt. (grub_realidt): New variable.
67 lines
1.9 KiB
C
67 lines
1.9 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_INTERRUPT_MACHINE_HEADER
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#define GRUB_INTERRUPT_MACHINE_HEADER 1
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#include <grub/symbol.h>
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#include <grub/types.h>
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struct grub_bios_int_registers
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{
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grub_uint32_t eax;
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grub_uint16_t es;
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grub_uint16_t ds;
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grub_uint16_t flags;
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grub_uint16_t dummy;
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grub_uint32_t ebx;
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grub_uint32_t ecx;
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grub_uint32_t edi;
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grub_uint32_t esi;
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grub_uint32_t edx;
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};
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#define GRUB_CPU_INT_FLAGS_CARRY 0x1
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#define GRUB_CPU_INT_FLAGS_PARITY 0x4
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#define GRUB_CPU_INT_FLAGS_ADJUST 0x10
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#define GRUB_CPU_INT_FLAGS_ZERO 0x40
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#define GRUB_CPU_INT_FLAGS_SIGN 0x80
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#define GRUB_CPU_INT_FLAGS_TRAP 0x100
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#define GRUB_CPU_INT_FLAGS_INTERRUPT 0x200
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#define GRUB_CPU_INT_FLAGS_DIRECTION 0x400
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#define GRUB_CPU_INT_FLAGS_OVERFLOW 0x800
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#ifdef GRUB_MACHINE_PCBIOS
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#define GRUB_CPU_INT_FLAGS_DEFAULT GRUB_CPU_INT_FLAGS_INTERRUPT
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#else
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#define GRUB_CPU_INT_FLAGS_DEFAULT 0
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#endif
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void EXPORT_FUNC (grub_bios_interrupt) (grub_uint8_t intno,
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struct grub_bios_int_registers *regs);
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struct grub_i386_idt
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{
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grub_uint16_t limit;
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grub_uint32_t base;
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} __attribute__ ((packed));
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#ifdef GRUB_MACHINE_PCBIOS
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extern struct grub_i386_idt *EXPORT_VAR(grub_realidt);
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#endif
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#endif
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