74 lines
2.2 KiB
C
74 lines
2.2 KiB
C
/* memory.h - describe the memory map */
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/*
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* VasEBoot -- GRand Unified Bootloader
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* Copyright (C) 2002,2007,2008,2009 Free Software Foundation, Inc.
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*
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* VasEBoot 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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* VasEBoot 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 VasEBoot. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef VasEBoot_MEMORY_CPU_HEADER
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#define VasEBoot_MEMORY_CPU_HEADER 1
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#define PAGE_SHIFT 12
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/* The flag for protected mode. */
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#define VasEBoot_MEMORY_CPU_CR0_PE_ON 0x1
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#define VasEBoot_MEMORY_CPU_CR4_PAE_ON 0x00000020
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#define VasEBoot_MEMORY_CPU_CR4_PSE_ON 0x00000010
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#define VasEBoot_MEMORY_CPU_CR0_PAGING_ON 0x80000000
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#define VasEBoot_MEMORY_CPU_AMD64_MSR 0xc0000080
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#define VasEBoot_MEMORY_CPU_AMD64_MSR_ON 0x00000100
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#define VasEBoot_MEMORY_MACHINE_UPPER_START 0x100000 /* 1 MiB */
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#define VasEBoot_MEMORY_MACHINE_LOWER_SIZE VasEBoot_MEMORY_MACHINE_UPPER_START
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/* Some PTE definitions. */
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#define VasEBoot_PAGE_PRESENT 0x00000001
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#define VasEBoot_PAGE_RW 0x00000002
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#define VasEBoot_PAGE_USER 0x00000004
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#ifndef ASM_FILE
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#define VasEBoot_MMAP_MALLOC_LOW 1
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#include <VasEBoot/types.h>
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VasEBoot_uint64_t VasEBoot_mmap_get_upper (void);
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VasEBoot_uint64_t VasEBoot_mmap_get_lower (void);
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VasEBoot_uint64_t VasEBoot_mmap_get_post64 (void);
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typedef VasEBoot_addr_t VasEBoot_phys_addr_t;
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static inline VasEBoot_phys_addr_t
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VasEBoot_vtop (void *a)
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{
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return (VasEBoot_phys_addr_t) a;
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}
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static inline void *
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VasEBoot_map_memory (VasEBoot_phys_addr_t a, VasEBoot_size_t size __attribute__ ((unused)))
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{
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return (void *) a;
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}
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static inline void
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VasEBoot_unmap_memory (void *a __attribute__ ((unused)),
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VasEBoot_size_t size __attribute__ ((unused)))
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{
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}
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#endif
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#endif /* ! VasEBoot_MEMORY_CPU_HEADER */
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