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/usr/src/linux-headers-5.15.0-181/arch/x86/include/uapi/asm/

/usr/src/linux-headers-5.15.0-181/arch/x86/include/uapi/asm

Name	Size	Mode	Actions
a.out.h	756	0644	edit dl rm
auxvec.h	546	0644	edit dl rm
bitsperlong.h	321	0644	edit dl rm
boot.h	338	0644	edit dl rm
bootparam.h	8233	0644	edit dl rm
byteorder.h	200	0644	edit dl rm
debugreg.h	3344	0644	edit dl rm
e820.h	2620	0644	edit dl rm
hwcap2.h	324	0644	edit dl rm
hw_breakpoint.h	69	0644	edit dl rm
ist.h	869	0644	edit dl rm
Kbuild	117	0644	edit dl rm
kvm.h	10858	0644	edit dl rm
kvm_para.h	4315	0644	edit dl rm
kvm_perf.h	388	0644	edit dl rm
ldt.h	1306	0644	edit dl rm
mce.h	1745	0644	edit dl rm
mman.h	1002	0644	edit dl rm
msgbuf.h	1079	0644	edit dl rm
msr.h	361	0644	edit dl rm
mtrr.h	4240	0644	edit dl rm
perf_regs.h	1403	0644	edit dl rm
posix_types.h	250	0644	edit dl rm
posix_types_32.h	765	0644	edit dl rm
posix_types_64.h	609	0644	edit dl rm
posix_types_x32.h	581	0644	edit dl rm
prctl.h	524	0644	edit dl rm
processor-flags.h	6638	0644	edit dl rm
ptrace-abi.h	2037	0644	edit dl rm
ptrace.h	1630	0644	edit dl rm
sembuf.h	1070	0644	edit dl rm
setup.h	6	0644	edit dl rm
sgx.h	5935	0644	edit dl rm
shmbuf.h	1258	0644	edit dl rm
sigcontext.h	9950	0644	edit dl rm
sigcontext32.h	271	0644	edit dl rm
siginfo.h	422	0644	edit dl rm
signal.h	2200	0644	edit dl rm
stat.h	3131	0644	edit dl rm
statfs.h	416	0644	edit dl rm
svm.h	8917	0644	edit dl rm
swab.h	769	0644	edit dl rm
ucontext.h	2117	0644	edit dl rm
unistd.h	664	0644	edit dl rm
vm86.h	3201	0644	edit dl rm
vmx.h	7383	0644	edit dl rm
vsyscall.h	278	0644	edit dl rm

Edit: /usr/src/linux-headers-5.15.0-181/arch/x86/include/uapi/asm/e820.h (2620B)

/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
#ifndef _UAPI_ASM_X86_E820_H
#define _UAPI_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.
 */

#ifndef __KERNEL__
#define E820_X_MAX E820MAX
#endif

#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 /* _UAPI_ASM_X86_E820_H */

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