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Name	Size	Permission	Date
a.out.h	756 B	-rw-r--r--	2026-05-19 00:00
amd_hsmp.h	12.99 KB	-rw-r--r--	2026-05-19 00:00
auxvec.h	546 B	-rw-r--r--	2026-05-19 00:00
bitsperlong.h	321 B	-rw-r--r--	2026-05-19 00:00
boot.h	323 B	-rw-r--r--	2026-05-19 00:00
bootparam.h	6.89 KB	-rw-r--r--	2026-05-19 00:00
bpf_perf_event.h	40 B	-rw-r--r--	2026-05-19 00:00
byteorder.h	200 B	-rw-r--r--	2026-05-19 00:00
debugreg.h	3.93 KB	-rw-r--r--	2026-05-19 00:00
e820.h	2.52 KB	-rw-r--r--	2026-05-19 00:00
elf.h	376 B	-rw-r--r--	2026-05-19 00:00
errno.h	31 B	-rw-r--r--	2026-05-19 00:00
fcntl.h	31 B	-rw-r--r--	2026-05-19 00:00
hw_breakpoint.h	69 B	-rw-r--r--	2026-05-19 00:00
hwcap2.h	324 B	-rw-r--r--	2026-05-19 00:00
ioctl.h	31 B	-rw-r--r--	2026-05-19 00:00
ioctls.h	32 B	-rw-r--r--	2026-05-19 00:00
ipcbuf.h	32 B	-rw-r--r--	2026-05-19 00:00
ist.h	854 B	-rw-r--r--	2026-05-19 00:00
kvm.h	22.64 KB	-rw-r--r--	2026-05-19 00:00
kvm_para.h	4.22 KB	-rw-r--r--	2026-05-19 00:00
kvm_perf.h	388 B	-rw-r--r--	2026-05-19 00:00
ldt.h	1.28 KB	-rw-r--r--	2026-05-19 00:00
mce.h	1.69 KB	-rw-r--r--	2026-05-19 00:00
mman.h	284 B	-rw-r--r--	2026-05-19 00:00
msgbuf.h	1.05 KB	-rw-r--r--	2026-05-19 00:00
msr.h	346 B	-rw-r--r--	2026-05-19 00:00
mtrr.h	3.9 KB	-rw-r--r--	2026-05-19 00:00
param.h	31 B	-rw-r--r--	2026-05-19 00:00
perf_regs.h	1.37 KB	-rw-r--r--	2026-05-19 00:00
poll.h	30 B	-rw-r--r--	2026-05-19 00:00
posix_types.h	224 B	-rw-r--r--	2026-05-19 00:00
posix_types_32.h	765 B	-rw-r--r--	2026-05-19 00:00
posix_types_64.h	609 B	-rw-r--r--	2026-05-19 00:00
posix_types_x32.h	581 B	-rw-r--r--	2026-05-19 00:00
prctl.h	1.14 KB	-rw-r--r--	2026-05-19 00:00
processor-flags.h	7.13 KB	-rw-r--r--	2026-05-19 00:00
ptrace-abi.h	1.99 KB	-rw-r--r--	2026-05-19 00:00
ptrace.h	1.46 KB	-rw-r--r--	2026-05-19 00:00
resource.h	34 B	-rw-r--r--	2026-05-19 00:00
sembuf.h	1.04 KB	-rw-r--r--	2026-05-19 00:00
setup.h	6 B	-rw-r--r--	2026-05-19 00:00
setup_data.h	1.72 KB	-rw-r--r--	2026-05-19 00:00
sgx.h	8.15 KB	-rw-r--r--	2026-05-19 00:00
shmbuf.h	1.29 KB	-rw-r--r--	2026-05-19 00:00
sigcontext.h	9.5 KB	-rw-r--r--	2026-05-19 00:00
sigcontext32.h	271 B	-rw-r--r--	2026-05-19 00:00
siginfo.h	422 B	-rw-r--r--	2026-05-19 00:00
signal.h	2 KB	-rw-r--r--	2026-05-19 00:00
socket.h	32 B	-rw-r--r--	2026-05-19 00:00
sockios.h	33 B	-rw-r--r--	2026-05-19 00:00
stat.h	3.06 KB	-rw-r--r--	2026-05-19 00:00
statfs.h	416 B	-rw-r--r--	2026-05-19 00:00
svm.h	9.74 KB	-rw-r--r--	2026-05-19 00:00
swab.h	724 B	-rw-r--r--	2026-05-19 00:00
termbits.h	34 B	-rw-r--r--	2026-05-19 00:00
termios.h	33 B	-rw-r--r--	2026-05-19 00:00
types.h	31 B	-rw-r--r--	2026-05-19 00:00
ucontext.h	2.07 KB	-rw-r--r--	2026-05-19 00:00
unistd.h	623 B	-rw-r--r--	2026-05-19 00:00
unistd_32.h	12.01 KB	-rw-r--r--	2026-05-19 00:00
unistd_64.h	9.9 KB	-rw-r--r--	2026-05-19 00:00
unistd_x32.h	17.42 KB	-rw-r--r--	2026-05-19 00:00
vm86.h	3.11 KB	-rw-r--r--	2026-05-19 00:00
vmx.h	7.42 KB	-rw-r--r--	2026-05-19 00:00
vsyscall.h	263 B	-rw-r--r--	2026-05-19 00:00

Rename

/* 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 */