descriptors.h File Reference

#include <mos/platform/platform.h>
#include <mos/types.h>

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Classes
struct	gdt_entry_t
struct	gdt_ptr_t
struct	tss64_t
struct	x86_cpu_descriptor_t
struct	idt_entry_t
struct	idtr_t

Macros
#define	GDT_NULL   0x00
#define	GDT_SEGMENT   0x10
#define	GDT_PRESENT   0x80
#define	GDT_GRANULARITY_BYTE   0x40
#define	GDT_GRANULARITY_PAGE   0xC0
#define	GDT_SEGMENT_NULL   0x00
#define	GDT_SEGMENT_KCODE   0x10
#define	GDT_SEGMENT_KDATA   0x20
#define	GDT_SEGMENT_USERCODE   0x30
#define	GDT_SEGMENT_USERDATA   0x40
#define	GDT_SEGMENT_TSS   0x50
#define	GDT_ENTRY_COUNT   6

Functions
	MOS_STATIC_ASSERT (sizeof(gdt_entry_t)==16, "gdt_entry_t is not 16 bytes")
	MOS_STATIC_ASSERT (sizeof(gdt_ptr_t)==2+sizeof(void *), "gdt_ptr_t is not 6 bytes")
	MOS_STATIC_ASSERT (sizeof(tss64_t)==0x68, "tss64_t is not 0x68 bytes")
	PER_CPU_DECLARE (x86_cpu_descriptor_t, x86_cpu_descriptor)
	MOS_STATIC_ASSERT (sizeof(idt_entry_t)==16, "idt_entry_t is not 16 bytes")
	MOS_STATIC_ASSERT (sizeof(idtr_t)==2+sizeof(void *), "idtr32_t is not 6 bytes")
void	x86_init_percpu_gdt (void)
void	x86_init_percpu_tss (void)
void	x86_init_percpu_idt (void)
void	x86_idt_init (void)
void	gdt_flush (gdt_ptr_t *gdt_ptr)
void	tss_flush (u32 tss_selector)
void	gdt_flush_only (gdt_ptr_t *gdt_ptr)

Macro Definition Documentation

GDT_NULL

#define GDT_NULL   0x00

Definition at line 8 of file descriptors.h.

GDT_SEGMENT

#define GDT_SEGMENT   0x10

Definition at line 9 of file descriptors.h.

GDT_PRESENT

#define GDT_PRESENT   0x80

Definition at line 10 of file descriptors.h.

GDT_GRANULARITY_BYTE

#define GDT_GRANULARITY_BYTE   0x40

Definition at line 12 of file descriptors.h.

GDT_GRANULARITY_PAGE

#define GDT_GRANULARITY_PAGE   0xC0

Definition at line 13 of file descriptors.h.

GDT_SEGMENT_NULL

#define GDT_SEGMENT_NULL   0x00

Definition at line 15 of file descriptors.h.

GDT_SEGMENT_KCODE

#define GDT_SEGMENT_KCODE   0x10

Definition at line 17 of file descriptors.h.

Referenced by x86_setup_thread_common().

GDT_SEGMENT_KDATA

#define GDT_SEGMENT_KDATA   0x20

Definition at line 18 of file descriptors.h.

Referenced by x86_setup_thread_common().

GDT_SEGMENT_USERCODE

#define GDT_SEGMENT_USERCODE   0x30

Definition at line 19 of file descriptors.h.

Referenced by x86_setup_thread_common().

GDT_SEGMENT_USERDATA

#define GDT_SEGMENT_USERDATA   0x40

Definition at line 20 of file descriptors.h.

Referenced by x86_setup_thread_common().

GDT_SEGMENT_TSS

#define GDT_SEGMENT_TSS   0x50

Definition at line 21 of file descriptors.h.

Referenced by x86_init_percpu_tss().

GDT_ENTRY_COUNT

#define GDT_ENTRY_COUNT   6

Definition at line 23 of file descriptors.h.

Function Documentation

MOS_STATIC_ASSERT() [1/5]

MOS_STATIC_ASSERT	(	sizeof(gdt_entry_t)	= =16,
		"gdt_entry_t is not 16 bytes"	)

MOS_STATIC_ASSERT() [2/5]

MOS_STATIC_ASSERT	(	sizeof(gdt_ptr_t)	= =2+sizeof(void *),
		"gdt_ptr_t is not 6 bytes"	)

MOS_STATIC_ASSERT() [3/5]

MOS_STATIC_ASSERT	(	sizeof(tss64_t)	= =0x68,
		"tss64_t is not 0x68 bytes"	)

PER_CPU_DECLARE()

PER_CPU_DECLARE ( x86_cpu_descriptor_t , x86_cpu_descriptor  )

extern

MOS_STATIC_ASSERT() [4/5]

MOS_STATIC_ASSERT	(	sizeof(idt_entry_t)	= =16,
		"idt_entry_t is not 16 bytes"	)

MOS_STATIC_ASSERT() [5/5]

MOS_STATIC_ASSERT	(	sizeof(idtr_t)	= =2+sizeof(void *),
		"idtr32_t is not 6 bytes"	)

x86_init_percpu_gdt()

void x86_init_percpu_gdt

(

void

)

Definition at line 59 of file descriptors.c.

Referenced by platform_ap_entry(), and platform_startup_early().

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x86_init_percpu_tss()

void x86_init_percpu_tss

(

void

)

Definition at line 86 of file descriptors.c.

Referenced by platform_ap_entry(), and platform_startup_early().

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x86_init_percpu_idt()

void x86_init_percpu_idt

(

void

)

Definition at line 36 of file idt.c.

Referenced by platform_ap_entry(), and platform_startup_early().

x86_idt_init()

void x86_idt_init

(

void

)

Definition at line 41 of file idt.c.

Referenced by platform_startup_early().

gdt_flush()

void gdt_flush ( gdt_ptr_t * gdt_ptr )

extern

Referenced by x86_init_percpu_gdt().

tss_flush()

void tss_flush ( u32 tss_selector )

extern

Referenced by x86_init_percpu_tss().

gdt_flush_only()

void gdt_flush_only ( gdt_ptr_t * gdt_ptr )

extern