JFIF$        dd7 

Viewing File: /usr/src/kernels/5.14.0-503.33.1.el9_5.x86_64/arch/x86/include/asm/setup.h

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_SETUP_H
#define _ASM_X86_SETUP_H

#include <uapi/asm/setup.h>

#define COMMAND_LINE_SIZE 2048

#include <linux/linkage.h>
#include <asm/page_types.h>
#include <asm/ibt.h>

#ifdef __i386__

#include <linux/pfn.h>
/*
 * Reserved space for vmalloc and iomap - defined in asm/page.h
 */
#define MAXMEM_PFN	PFN_DOWN(MAXMEM)
#define MAX_NONPAE_PFN	(1 << 20)

#endif /* __i386__ */

#define PARAM_SIZE 4096		/* sizeof(struct boot_params) */

#define OLD_CL_MAGIC		0xA33F
#define OLD_CL_ADDRESS		0x020	/* Relative to real mode data */
#define NEW_CL_POINTER		0x228	/* Relative to real mode data */

#ifndef __ASSEMBLY__
#include <asm/bootparam.h>
#include <asm/x86_init.h>

/* Interrupt control for vSMPowered x86_64 systems */
#ifdef CONFIG_X86_64
void vsmp_init(void);
#else
static inline void vsmp_init(void) { }
#endif

struct pt_regs;

void setup_bios_corruption_check(void);
void early_platform_quirks(void);

extern unsigned long saved_video_mode;

extern void reserve_standard_io_resources(void);
extern void i386_reserve_resources(void);
extern unsigned long __startup_64(unsigned long physaddr, struct boot_params *bp);
extern void startup_64_setup_env(unsigned long physbase);
extern void early_setup_idt(void);
extern void __init do_early_exception(struct pt_regs *regs, int trapnr);

#ifdef CONFIG_X86_INTEL_MID
extern void x86_intel_mid_early_setup(void);
#else
static inline void x86_intel_mid_early_setup(void) { }
#endif

#ifdef CONFIG_X86_INTEL_CE
extern void x86_ce4100_early_setup(void);
#else
static inline void x86_ce4100_early_setup(void) { }
#endif

#ifndef _SETUP

#include <asm/espfix.h>
#include <linux/kernel.h>

/*
 * This is set up by the setup-routine at boot-time
 */
extern struct boot_params boot_params;
extern char _text[];

static inline bool kaslr_enabled(void)
{
	return IS_ENABLED(CONFIG_RANDOMIZE_MEMORY) &&
		!!(boot_params.hdr.loadflags & KASLR_FLAG);
}

/*
 * Apply no randomization if KASLR was disabled at boot or if KASAN
 * is enabled. KASAN shadow mappings rely on regions being PGD aligned.
 */
static inline bool kaslr_memory_enabled(void)
{
	return kaslr_enabled() && !IS_ENABLED(CONFIG_KASAN);
}

static inline unsigned long kaslr_offset(void)
{
	return (unsigned long)&_text - __START_KERNEL;
}

/*
 * Do NOT EVER look at the BIOS memory size location.
 * It does not work on many machines.
 */
#define LOWMEMSIZE()	(0x9f000)

/* exceedingly early brk-like allocator */
extern unsigned long _brk_end;
void *extend_brk(size_t size, size_t align);

/*
 * Reserve space in the .brk section, which is a block of memory from which the
 * caller is allowed to allocate very early (before even memblock is available)
 * by calling extend_brk().  All allocated memory will be eventually converted
 * to memblock.  Any leftover unallocated memory will be freed.
 *
 * The size is in bytes.
 */
#define RESERVE_BRK(name, size)					\
	__section(".bss..brk") __aligned(1) __used	\
	static char __brk_##name[size]

extern void probe_roms(void);

void clear_bss(void);

#ifdef __i386__

asmlinkage void __init __noreturn i386_start_kernel(void);
void __init mk_early_pgtbl_32(void);

#else
asmlinkage void __init __noreturn x86_64_start_kernel(char *real_mode);
asmlinkage void __init __noreturn x86_64_start_reservations(char *real_mode_data);

#endif /* __i386__ */
#endif /* _SETUP */

#else  /* __ASSEMBLY */

.macro __RESERVE_BRK name, size
	.pushsection .bss..brk, "aw"
SYM_DATA_START(__brk_\name)
	.skip \size
SYM_DATA_END(__brk_\name)
	.popsection
.endm

#define RESERVE_BRK(name, size) __RESERVE_BRK name, size

#endif /* __ASSEMBLY__ */

#endif /* _ASM_X86_SETUP_H */
Back to Directory  nL+D550H?Mx ,D"v]qv;6*Zqn)ZP0!1 A "#a$2Qr D8 a Ri[f\mIykIw0cuFcRı?lO7к_f˓[C$殷WF<_W ԣsKcëIzyQy/_LKℂ;C",pFA:/]=H  ~,ls/9ć:[=/#f;)x{ٛEQ )~ =𘙲r*2~ a _V=' kumFD}KYYC)({ *g&f`툪ry`=^cJ.I](*`wq1dđ#̩͑0;H]u搂@:~וKL Nsh}OIR*8:2 !lDJVo(3=M(zȰ+i*NAr6KnSl)!JJӁ* %݉?|D}d5:eP0R;{$X'xF@.ÊB {,WJuQɲRI;9QE琯62fT.DUJ;*cP A\ILNj!J۱+O\͔]ޒS߼Jȧc%ANolՎprULZԛerE2=XDXgVQeӓk yP7U*omQIs,K`)6\G3t?pgjrmۛجwluGtfh9uyP0D;Uڽ"OXlif$)&|ML0Zrm1[HXPlPR0'G=i2N+0e2]]9VTPO׮7h(F*癈'=QVZDF,d߬~TX G[`le69CR(!S2!P <0x<!1AQ "Raq02Br#SCTb ?Ζ"]mH5WR7k.ۛ!}Q~+yԏz|@T20S~Kek *zFf^2X*(@8r?CIuI|֓>^ExLgNUY+{.RѪ τV׸YTD I62'8Y27'\TP.6d&˦@Vqi|8-OΕ]ʔ U=TL8=;6c| !qfF3aů&~$l}'NWUs$Uk^SV:U# 6w++s&r+nڐ{@29 gL u"TÙM=6(^"7r}=6YݾlCuhquympǦ GjhsǜNlɻ}o7#S6aw4!OSrD57%|?x>L |/nD6?/8w#[)L7+6〼T ATg!%5MmZ/c-{1_Je"|^$'O&ޱմTrb$w)R$& N1EtdU3Uȉ1pM"N*(DNyd96.(jQ)X 5cQɎMyW?Q*!R>6=7)Xj5`J]e8%t!+'!1Q5 !1 AQaqё#2"0BRb?Gt^## .llQT $v,,m㵜5ubV =sY+@d{N! dnO<.-B;_wJt6;QJd.Qc%p{ 1,sNDdFHI0ГoXшe黅XۢF:)[FGXƹ/w_cMeD,ʡcc.WDtA$j@:) -# u c1<@ۗ9F)KJ-hpP]_x[qBlbpʖw q"LFGdƶ*s+ډ_Zc"?%t[IP 6J]#=ɺVvvCGsGh1 >)6|ey?Lӣm,4GWUi`]uJVoVDG< SB6ϏQ@ TiUlyOU0kfV~~}SZ@*WUUi##; s/[=!7}"WN]'(L! ~y5g9T̅JkbM' +s:S +B)v@Mj e Cf jE 0Y\QnzG1д~Wo{T9?`Rmyhsy3!HAD]mc1~2LSu7xT;j$`}4->L#vzŏILS ֭T{rjGKC;bpU=-`BsK.SFw4Mq]ZdHS0)tLg