x86.c File Reference

#include <device/mmio.h>
#include <arch/interrupt.h>
#include <arch/registers.h>
#include <boot/coreboot_tables.h>
#include <console/console.h>
#include <delay.h>
#include <device/pci.h>
#include <device/pci_ids.h>
#include <pc80/i8259.h>
#include <pc80/i8254.h>
#include <stdint.h>
#include <string.h>
#include <vbe.h>
#include <framebuffer_info.h>
#include <x86emu/regs.h>
#include "x86.h"

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Data Structures
struct	__packed

Macros
#define	PTR_TO_REAL_MODE(sym)    (void *)(REALMODE_BASE + ((char *)&(sym) - (char *)&__realmode_code))

Functions
static void	setup_realmode_code (void)
static void	setup_rombios (void)
static int	intXX_exception_handler (void)
static int	intXX_unknown_handler (void)
void	mainboard_interrupt_handlers (int intXX, int(*intXX_func)(void))
static void	setup_interrupt_handlers (void)
static void	write_idt_stub (void *target, u8 intnum)
static void	setup_realmode_idt (void)
void	run_bios (struct device *dev, unsigned long addr)
int asmlinkage	interrupt_handler (u32 intnumber, u32 gsfs, u32 dses, u32 edi, u32 esi, u32 ebp, u32 esp, u32 ebx, u32 edx, u32 ecx, u32 eax, u32 cs_ip, u16 stackflags)

Variables
unsigned char	__realmode_call
unsigned char	__realmode_interrupt
unsigned char	__realmode_buffer
X86EMU_sysEnv	_X86EMU_env
unsigned int(*	realmode_call )(u32 addr, u32 eax, u32 ebx, u32 ecx, u32 edx, u32 esi, u32 edi) asmlinkage
unsigned int(*	realmode_interrupt )(u32 intno, u32 eax, u32 ebx, u32 ecx, u32 edx, u32 esi, u32 edi) asmlinkage
static int(*	intXX_handler [256])(void) = { NULL }

Macro Definition Documentation

PTR_TO_REAL_MODE

#define PTR_TO_REAL_MODE

(

sym

)

(void *)(REALMODE_BASE + ((char *)&(sym) - (char *)&__realmode_code))

Definition at line 41 of file x86.c.

Function Documentation

interrupt_handler()

int asmlinkage interrupt_handler	(	u32	intnumber,
		u32	gsfs,
		u32	dses,
		u32	edi,
		u32	esi,
		u32	ebp,
		u32	esp,
		u32	ebx,
		u32	edx,
		u32	ecx,
		u32	eax,
		u32	cs_ip,
		u16	stackflags
	)

Definition at line 455 of file x86.c.

References BIOS_DEBUG, intXX_handler, M, printk, X86_CS, X86_EAX, X86_EBP, X86_EBX, X86_ECX, X86_EDI, X86_EDX, X86_EFLAGS, X86_EIP, X86_ESI, and X86_ESP.

intXX_exception_handler()

static int intXX_exception_handler ( void  )

static

Definition at line 79 of file x86.c.

References BIOS_INFO, M, printk, X86_CS, X86_EAX, X86_EBP, X86_EBX, X86_ECX, X86_EDI, X86_EDX, X86_EFLAGS, X86_EIP, X86_ESI, X86_ESP, and x86_exception().

Referenced by setup_interrupt_handlers().

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intXX_unknown_handler()

static int intXX_unknown_handler ( void  )

static

Definition at line 111 of file x86.c.

References BIOS_INFO, M, printk, and X86_EAX.

Referenced by setup_interrupt_handlers().

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mainboard_interrupt_handlers()

void mainboard_interrupt_handlers	(	int	intXX,
		int(*)(void)	intXX_func
	)

Definition at line 120 of file x86.c.

References intXX_handler.

run_bios()

void run_bios	(	struct device *	dev,
		unsigned long	addr
	)

Definition at line 409 of file x86.c.

References addr, BIOS_DEBUG, device::bus, device::class, pci_path::devfn, device::path, device_path::pci, PCI_CLASS_DISPLAY_VGA, printk, realmode_call, bus::secondary, setup_i8254(), setup_i8259(), setup_interrupt_handlers(), setup_realmode_code(), setup_realmode_idt(), setup_rombios(), and vbe_set_graphics().

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setup_interrupt_handlers()

static void setup_interrupt_handlers ( void  )

static

Definition at line 125 of file x86.c.

References int10_handler(), int12_handler(), int16_handler(), int1a_handler(), intXX_exception_handler(), intXX_handler, and intXX_unknown_handler().

Referenced by run_bios().

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setup_realmode_code()

static void setup_realmode_code ( void  )

static

Definition at line 53 of file x86.c.

References __realmode_call, __realmode_code, __realmode_code_size, __realmode_interrupt, BIOS_SPEW, memcpy(), printk, PTR_TO_REAL_MODE, REALMODE_BASE, realmode_call, and realmode_interrupt.

Referenced by run_bios().

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setup_realmode_idt()

static void setup_realmode_idt ( void  )

static

Definition at line 176 of file x86.c.

References __idt_handler_size, realmode_idt::cs, realmode_idt::offset, offset, and write_idt_stub().

Referenced by run_bios().

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setup_rombios()

static void setup_rombios ( void  )

static

Definition at line 65 of file x86.c.

References memcpy(), and write8().

Referenced by run_bios().

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write_idt_stub()

static void write_idt_stub ( void *  target, u8  intnum  )

static

Definition at line 168 of file x86.c.

References __idt_handler, __idt_handler_size, and memcpy().

Referenced by setup_realmode_idt().

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Variable Documentation

__realmode_buffer

unsigned char __realmode_buffer

extern

__realmode_call

unsigned char __realmode_call

extern

Referenced by setup_realmode_code().

__realmode_interrupt

unsigned char __realmode_interrupt

Definition at line 38 of file x86.c.

Referenced by setup_realmode_code().

_X86EMU_env

X86EMU_sysEnv _X86EMU_env

Definition at line 45 of file x86.c.

intXX_handler

int(* intXX_handler[256])(void) ( void  ) = { NULL }

static

Definition at line 77 of file x86.c.

Referenced by interrupt_handler(), mainboard_interrupt_handlers(), and setup_interrupt_handlers().

realmode_call

unsigned int(* realmode_call) (u32 addr, u32 eax, u32 ebx, u32 ecx, u32 edx, u32 esi, u32 edi) asmlinkage	(	u32	addr,
		u32	eax,
		u32	ebx,
		u32	ecx,
		u32	edx,
		u32	esi,
		u32	edi
	)

Definition at line 47 of file x86.c.

Referenced by run_bios(), and setup_realmode_code().

realmode_interrupt

unsigned int(* realmode_interrupt) (u32 intno, u32 eax, u32 ebx, u32 ecx, u32 edx, u32 esi, u32 edi) asmlinkage	(	u32	intno,
		u32	eax,
		u32	ebx,
		u32	ecx,
		u32	edx,
		u32	esi,
		u32	edi
	)

Definition at line 50 of file x86.c.

Referenced by setup_realmode_code().