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Name	Size	Permission
a.out.h	693 B	-rw-r--r--
auxvec.h	483 B	-rw-r--r--
bitsperlong.h	229 B	-rw-r--r--
boot.h	260 B	-rw-r--r--
bootparam.h	4.39 KB	-rw-r--r--
bpf_perf_event.h	40 B	-rw-r--r--
byteorder.h	137 B	-rw-r--r--
debugreg.h	3.15 KB	-rw-r--r--
e820.h	2.63 KB	-rw-r--r--
errno.h	31 B	-rw-r--r--
fcntl.h	31 B	-rw-r--r--
hw_breakpoint.h	6 B	-rw-r--r--
hyperv.h	12.98 KB	-rw-r--r--
ioctl.h	31 B	-rw-r--r--
ioctls.h	32 B	-rw-r--r--
ipcbuf.h	32 B	-rw-r--r--
ist.h	790 B	-rw-r--r--
kvm.h	6.81 KB	-rw-r--r--
kvm_para.h	2.8 KB	-rw-r--r--
kvm_perf.h	325 B	-rw-r--r--
ldt.h	963 B	-rw-r--r--
mce.h	1.22 KB	-rw-r--r--
mman.h	1.01 KB	-rw-r--r--
msgbuf.h	32 B	-rw-r--r--
msr-index.h	29.04 KB	-rw-r--r--
msr.h	283 B	-rw-r--r--
mtrr.h	4.06 KB	-rw-r--r--
param.h	31 B	-rw-r--r--
perf_regs.h	1.24 KB	-rw-r--r--
poll.h	30 B	-rw-r--r--
posix_types.h	161 B	-rw-r--r--
posix_types_32.h	702 B	-rw-r--r--
posix_types_64.h	546 B	-rw-r--r--
posix_types_x32.h	518 B	-rw-r--r--
prctl.h	190 B	-rw-r--r--
processor-flags.h	6.32 KB	-rw-r--r--
ptrace-abi.h	1.76 KB	-rw-r--r--
ptrace.h	1.17 KB	-rw-r--r--
resource.h	34 B	-rw-r--r--
sembuf.h	699 B	-rw-r--r--
setup.h	6 B	-rw-r--r--
shmbuf.h	32 B	-rw-r--r--
sigcontext.h	5.11 KB	-rw-r--r--
sigcontext32.h	1.64 KB	-rw-r--r--
siginfo.h	431 B	-rw-r--r--
signal.h	2.77 KB	-rw-r--r--
socket.h	32 B	-rw-r--r--
sockios.h	33 B	-rw-r--r--
stat.h	2.89 KB	-rw-r--r--
statfs.h	353 B	-rw-r--r--
svm.h	5.09 KB	-rw-r--r--
swab.h	661 B	-rw-r--r--
termbits.h	34 B	-rw-r--r--
termios.h	33 B	-rw-r--r--
types.h	113 B	-rw-r--r--
ucontext.h	339 B	-rw-r--r--
unistd.h	296 B	-rw-r--r--
unistd_32.h	9.37 KB	-rw-r--r--
unistd_64.h	8.59 KB	-rw-r--r--
unistd_x32.h	15.12 KB	-rw-r--r--
vm86.h	2.98 KB	-rw-r--r--
vmx.h	6.53 KB	-rw-r--r--
vsyscall.h	375 B	-rw-r--r--

Code Editor : e820.h

#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.
 */

/*
 * Odd: 'make headers_check' complains about numa.h if I try
 * to collapse the next two #ifdef lines to a single line:
 *	#if defined(__KERNEL__) && defined(CONFIG_EFI)
 */
#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 */

${this.title}

Code Editor : e820.h