| /* memory_raw.h - describe the memory map on qemu/coreboot/multiboot/pc */ |
| /* |
| * GRUB -- GRand Unified Bootloader |
| * Copyright (C) 2002,2007,2008,2009,2013 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_MEMORY_CPU_RAW_HEADER |
| #define GRUB_MEMORY_CPU_RAW_HEADER 1 |
| |
| /* The scratch buffer used in real mode code. */ |
| #define GRUB_MEMORY_MACHINE_SCRATCH_ADDR 0x68000 |
| #define GRUB_MEMORY_MACHINE_SCRATCH_SEG (GRUB_MEMORY_MACHINE_SCRATCH_ADDR >> 4) |
| #define GRUB_MEMORY_MACHINE_SCRATCH_SIZE 0x9000 |
| |
| /* The real mode stack. */ |
| #define GRUB_MEMORY_MACHINE_REAL_STACK (0x2000 - 0x10) |
| |
| /* The size of the protect mode stack. */ |
| #define GRUB_MEMORY_MACHINE_PROT_STACK_SIZE 0xf000 |
| |
| /* The protected mode stack. */ |
| #define GRUB_MEMORY_MACHINE_PROT_STACK \ |
| (GRUB_MEMORY_MACHINE_SCRATCH_ADDR + GRUB_MEMORY_MACHINE_SCRATCH_SIZE \ |
| + GRUB_MEMORY_MACHINE_PROT_STACK_SIZE - 0x10) |
| |
| /* The memory area where GRUB uses its own purpose. This part is not added |
| into free memory for dynamic allocations. */ |
| #define GRUB_MEMORY_MACHINE_RESERVED_START \ |
| GRUB_MEMORY_MACHINE_SCRATCH_ADDR |
| #define GRUB_MEMORY_MACHINE_RESERVED_END \ |
| (GRUB_MEMORY_MACHINE_PROT_STACK + 0x10) |
| |
| /* The code segment of the protected mode. */ |
| #define GRUB_MEMORY_MACHINE_PROT_MODE_CSEG 0x8 |
| |
| /* The data segment of the protected mode. */ |
| #define GRUB_MEMORY_MACHINE_PROT_MODE_DSEG 0x10 |
| |
| /* The code segment of the pseudo real mode. */ |
| #define GRUB_MEMORY_MACHINE_PSEUDO_REAL_CSEG 0x18 |
| |
| /* The data segment of the pseudo real mode. */ |
| #define GRUB_MEMORY_MACHINE_PSEUDO_REAL_DSEG 0x20 |
| |
| #endif |
