diff options
author | orivej <orivej@yandex-team.ru> | 2022-02-10 16:45:01 +0300 |
---|---|---|
committer | Daniil Cherednik <dcherednik@yandex-team.ru> | 2022-02-10 16:45:01 +0300 |
commit | 2d37894b1b037cf24231090eda8589bbb44fb6fc (patch) | |
tree | be835aa92c6248212e705f25388ebafcf84bc7a1 /contrib/libs/linux-headers/asm/e820_x86.h | |
parent | 718c552901d703c502ccbefdfc3c9028d608b947 (diff) | |
download | ydb-2d37894b1b037cf24231090eda8589bbb44fb6fc.tar.gz |
Restoring authorship annotation for <orivej@yandex-team.ru>. Commit 2 of 2.
Diffstat (limited to 'contrib/libs/linux-headers/asm/e820_x86.h')
-rw-r--r-- | contrib/libs/linux-headers/asm/e820_x86.h | 160 |
1 files changed, 80 insertions, 80 deletions
diff --git a/contrib/libs/linux-headers/asm/e820_x86.h b/contrib/libs/linux-headers/asm/e820_x86.h index 7e57e107d4..b4bc4dc540 100644 --- a/contrib/libs/linux-headers/asm/e820_x86.h +++ b/contrib/libs/linux-headers/asm/e820_x86.h @@ -1,80 +1,80 @@ -/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ -#ifndef _ASM_X86_E820_H -#define _ASM_X86_E820_H -#define E820MAP 0x2d0 /* our map */ -#define E820MAX 128 /* number of entries in E820MAP */ - -/* - * Legacy E820 BIOS limits us to 128 (E820MAX) nodes due to the - * constrained space in the zeropage. If we have more nodes than - * that, and if we've booted off EFI firmware, then the EFI tables - * passed us from the EFI firmware can list more nodes. Size our - * internal memory map tables to have room for these additional - * nodes, based on up to three entries per node for which the - * kernel was built: MAX_NUMNODES == (1 << CONFIG_NODES_SHIFT), - * plus E820MAX, allowing space for the possible duplicate E820 - * entries that might need room in the same arrays, prior to the - * call to sanitize_e820_map() to remove duplicates. The allowance - * of three memory map entries per node is "enough" entries for - * the initial hardware platform motivating this mechanism to make - * use of additional EFI map entries. Future platforms may want - * to allow more than three entries per node or otherwise refine - * this size. - */ - -#define E820_X_MAX E820MAX - -#define E820NR 0x1e8 /* # entries in E820MAP */ - -#define E820_RAM 1 -#define E820_RESERVED 2 -#define E820_ACPI 3 -#define E820_NVS 4 -#define E820_UNUSABLE 5 -#define E820_PMEM 7 - -/* - * This is a non-standardized way to represent ADR or NVDIMM regions that - * persist over a reboot. The kernel will ignore their special capabilities - * unless the CONFIG_X86_PMEM_LEGACY option is set. - * - * ( Note that older platforms also used 6 for the same type of memory, - * but newer versions switched to 12 as 6 was assigned differently. Some - * time they will learn... ) - */ -#define E820_PRAM 12 - -/* - * reserved RAM used by kernel itself - * if CONFIG_INTEL_TXT is enabled, memory of this type will be - * included in the S3 integrity calculation and so should not include - * any memory that BIOS might alter over the S3 transition - */ -#define E820_RESERVED_KERN 128 - -#ifndef __ASSEMBLY__ -#include <linux/types.h> -struct e820entry { - __u64 addr; /* start of memory segment */ - __u64 size; /* size of memory segment */ - __u32 type; /* type of memory segment */ -} __attribute__((packed)); - -struct e820map { - __u32 nr_map; - struct e820entry map[E820_X_MAX]; -}; - -#define ISA_START_ADDRESS 0xa0000 -#define ISA_END_ADDRESS 0x100000 - -#define BIOS_BEGIN 0x000a0000 -#define BIOS_END 0x00100000 - -#define BIOS_ROM_BASE 0xffe00000 -#define BIOS_ROM_END 0xffffffff - -#endif /* __ASSEMBLY__ */ - - -#endif /* _ASM_X86_E820_H */ +/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ +#ifndef _ASM_X86_E820_H +#define _ASM_X86_E820_H +#define E820MAP 0x2d0 /* our map */ +#define E820MAX 128 /* number of entries in E820MAP */ + +/* + * Legacy E820 BIOS limits us to 128 (E820MAX) nodes due to the + * constrained space in the zeropage. If we have more nodes than + * that, and if we've booted off EFI firmware, then the EFI tables + * passed us from the EFI firmware can list more nodes. Size our + * internal memory map tables to have room for these additional + * nodes, based on up to three entries per node for which the + * kernel was built: MAX_NUMNODES == (1 << CONFIG_NODES_SHIFT), + * plus E820MAX, allowing space for the possible duplicate E820 + * entries that might need room in the same arrays, prior to the + * call to sanitize_e820_map() to remove duplicates. The allowance + * of three memory map entries per node is "enough" entries for + * the initial hardware platform motivating this mechanism to make + * use of additional EFI map entries. Future platforms may want + * to allow more than three entries per node or otherwise refine + * this size. + */ + +#define E820_X_MAX E820MAX + +#define E820NR 0x1e8 /* # entries in E820MAP */ + +#define E820_RAM 1 +#define E820_RESERVED 2 +#define E820_ACPI 3 +#define E820_NVS 4 +#define E820_UNUSABLE 5 +#define E820_PMEM 7 + +/* + * This is a non-standardized way to represent ADR or NVDIMM regions that + * persist over a reboot. The kernel will ignore their special capabilities + * unless the CONFIG_X86_PMEM_LEGACY option is set. + * + * ( Note that older platforms also used 6 for the same type of memory, + * but newer versions switched to 12 as 6 was assigned differently. Some + * time they will learn... ) + */ +#define E820_PRAM 12 + +/* + * reserved RAM used by kernel itself + * if CONFIG_INTEL_TXT is enabled, memory of this type will be + * included in the S3 integrity calculation and so should not include + * any memory that BIOS might alter over the S3 transition + */ +#define E820_RESERVED_KERN 128 + +#ifndef __ASSEMBLY__ +#include <linux/types.h> +struct e820entry { + __u64 addr; /* start of memory segment */ + __u64 size; /* size of memory segment */ + __u32 type; /* type of memory segment */ +} __attribute__((packed)); + +struct e820map { + __u32 nr_map; + struct e820entry map[E820_X_MAX]; +}; + +#define ISA_START_ADDRESS 0xa0000 +#define ISA_END_ADDRESS 0x100000 + +#define BIOS_BEGIN 0x000a0000 +#define BIOS_END 0x00100000 + +#define BIOS_ROM_BASE 0xffe00000 +#define BIOS_ROM_END 0xffffffff + +#endif /* __ASSEMBLY__ */ + + +#endif /* _ASM_X86_E820_H */ |