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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 16:29:51 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 16:29:51 +0000 |
commit | 6e7a315eb67cb6c113cf37e1d66c4f11a51a2b3e (patch) | |
tree | 32451fa3cdd9321fb2591fada9891b2cb70a9cd1 /include/grub/i386/memory.h | |
parent | Initial commit. (diff) | |
download | grub2-upstream/2.06.tar.xz grub2-upstream/2.06.zip |
Adding upstream version 2.06.upstream/2.06upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | include/grub/i386/memory.h | 80 |
1 files changed, 80 insertions, 0 deletions
diff --git a/include/grub/i386/memory.h b/include/grub/i386/memory.h new file mode 100644 index 0000000..5cb607f --- /dev/null +++ b/include/grub/i386/memory.h @@ -0,0 +1,80 @@ +/* memory.h - describe the memory map */ +/* + * GRUB -- GRand Unified Bootloader + * Copyright (C) 2002,2007,2008,2009 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_MEMORY_CPU_HEADER +#define GRUB_MEMORY_CPU_HEADER 1 + +#define PAGE_SHIFT 12 + +/* The flag for protected mode. */ +#define GRUB_MEMORY_CPU_CR0_PE_ON 0x1 +#define GRUB_MEMORY_CPU_CR4_PAE_ON 0x00000020 +#define GRUB_MEMORY_CPU_CR4_PSE_ON 0x00000010 +#define GRUB_MEMORY_CPU_CR0_PAGING_ON 0x80000000 +#define GRUB_MEMORY_CPU_AMD64_MSR 0xc0000080 +#define GRUB_MEMORY_CPU_AMD64_MSR_ON 0x00000100 + +#define GRUB_MEMORY_MACHINE_UPPER_START 0x100000 /* 1 MiB */ +#define GRUB_MEMORY_MACHINE_LOWER_SIZE GRUB_MEMORY_MACHINE_UPPER_START + +/* Some PTE definitions. */ +#define GRUB_PAGE_PRESENT 0x00000001 +#define GRUB_PAGE_RW 0x00000002 +#define GRUB_PAGE_USER 0x00000004 + +#ifndef ASM_FILE + +#define GRUB_MMAP_MALLOC_LOW 1 + +#include <grub/types.h> + +struct grub_e820_mmap_entry +{ + grub_uint64_t addr; + grub_uint64_t len; + grub_uint32_t type; +} GRUB_PACKED; + +grub_uint64_t grub_mmap_get_upper (void); +grub_uint64_t grub_mmap_get_lower (void); +grub_uint64_t grub_mmap_get_post64 (void); + +typedef grub_addr_t grub_phys_addr_t; + +static inline grub_phys_addr_t +grub_vtop (void *a) +{ + return (grub_phys_addr_t) a; +} + +static inline void * +grub_map_memory (grub_phys_addr_t a, grub_size_t size __attribute__ ((unused))) +{ + return (void *) a; +} + +static inline void +grub_unmap_memory (void *a __attribute__ ((unused)), + grub_size_t size __attribute__ ((unused))) +{ +} + +#endif + +#endif /* ! GRUB_MEMORY_CPU_HEADER */ |