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proof of concept interrupt wrapping

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This commit is contained in:
Vladimir 'phcoder' Serbinenko 2009-12-31 13:07:51 +01:00
parent f5a513064c
commit eb3f57d3c4
5 changed files with 176 additions and 78 deletions
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2
include/grub/i386/pc/biosdisk.h
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@ -106,7 +106,6 @@ struct grub_biosdisk_dap
grub_uint64_t block;
} __attribute__ ((packed));
int EXPORT_FUNC(grub_biosdisk_rw_int13_extensions) (int ah, int drive, void *dap);
int EXPORT_FUNC(grub_biosdisk_rw_standard) (int ah, int drive, int coff, int hoff,
int soff, int nsec, int segment);
int EXPORT_FUNC(grub_biosdisk_check_int13_extensions) (int drive);
@ -118,7 +117,6 @@ int EXPORT_FUNC(grub_biosdisk_get_diskinfo_standard) (int drive,
unsigned long *cylinders,
unsigned long *heads,
unsigned long *sectors);
int EXPORT_FUNC(grub_biosdisk_get_num_floppies) (void);
void grub_biosdisk_init (void);
void grub_biosdisk_fini (void);

50
include/grub/i386/pc/int.h Normal file
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@ -0,0 +1,50 @@
/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 2009 Free Software Foundation, Inc.
*
* GRUB is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* GRUB is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef GRUB_INTERRUPT_MACHINE_HEADER
#define GRUB_INTERRUPT_MACHINE_HEADER 1
#include <grub/symbol.h>
struct grub_cpu_int_registers
{
grub_uint16_t bx;
grub_uint16_t es;
grub_uint16_t cx;
grub_uint16_t ax;
grub_uint16_t dx;
grub_uint16_t ds;
grub_uint16_t di;
grub_uint16_t flags;
grub_uint16_t si;
};
#define GRUB_CPU_INT_FLAGS_CARRY 0x1
#define GRUB_CPU_INT_FLAGS_PARITY 0x4
#define GRUB_CPU_INT_FLAGS_ADJUST 0x10
#define GRUB_CPU_INT_FLAGS_ZERO 0x40
#define GRUB_CPU_INT_FLAGS_SIGN 0x80
#define GRUB_CPU_INT_FLAGS_TRAP 0x100
#define GRUB_CPU_INT_FLAGS_INTERRUPT 0x200
#define GRUB_CPU_INT_FLAGS_DIRECTION 0x400
#define GRUB_CPU_INT_FLAGS_OVERFLOW 0x800
#define GRUB_CPU_INT_FLAGS_DEFAULT GRUB_CPU_INT_FLAGS_INTERRUPT
void EXPORT_FUNC (grub_cpu_interrupt) (grub_uint8_t intno, struct grub_cpu_int_registers *regs);
#endif