segment_descriptor Struct Reference

#include <segmentation.h>

Data Fields
union {
uint16_t   limit_low
uint16_t   reserved_task_gate_0
uint16_t   offset_low
};
union {
uint16_t   segment_selector
uint16_t   base_low
};
union {
uint8_t   base_mid
uint8_t   reserved_task_gate_1
struct {
uint8_t   reserved_or_param:5
uint8_t   always_0_0:3
}
};
union {
struct {
uint8_t   accessed:1
uint8_t   rw:1
uint8_t   cd:1
uint8_t   executable:1
uint8_t   descriptor_type:1
uint8_t   dpl:2
uint8_t   present:1
}
struct {
uint8_t   type:4
uint8_t   use_other_union:4
}
};
union {
uint16_t   offset_hi
uint16_t   reserved_task_gate_2
struct {
uint8_t   limit_hi:4
uint8_t   avl:1
uint8_t   flags_l:1
uint8_t   db:1
uint8_t   granularity:1
uint8_t   base_hi
}
};

Field Documentation

[union]

union { ... } segment_descriptor

[union]

union { ... } segment_descriptor

[union]

union { ... } segment_descriptor

[union]

union { ... } segment_descriptor

[union]

union { ... } segment_descriptor

accessed

uint8_t segment_descriptor::accessed

always_0_0

uint8_t segment_descriptor::always_0_0

avl

uint8_t segment_descriptor::avl

base_hi

uint8_t segment_descriptor::base_hi

base_low

uint16_t segment_descriptor::base_low

base_mid

uint8_t segment_descriptor::base_mid

cd

uint8_t segment_descriptor::cd

db

uint8_t segment_descriptor::db

descriptor_type

uint8_t segment_descriptor::descriptor_type

dpl

uint8_t segment_descriptor::dpl

executable

uint8_t segment_descriptor::executable

flags_l

uint8_t segment_descriptor::flags_l

granularity

uint8_t segment_descriptor::granularity

limit_hi

uint8_t segment_descriptor::limit_hi

limit_low

uint16_t segment_descriptor::limit_low

offset_hi

uint16_t segment_descriptor::offset_hi

offset_low

uint16_t segment_descriptor::offset_low

present

uint8_t segment_descriptor::present

reserved_or_param

uint8_t segment_descriptor::reserved_or_param

reserved_task_gate_0

uint16_t segment_descriptor::reserved_task_gate_0

reserved_task_gate_1

uint8_t segment_descriptor::reserved_task_gate_1

reserved_task_gate_2

uint16_t segment_descriptor::reserved_task_gate_2

rw

uint8_t segment_descriptor::rw

segment_selector

uint16_t segment_descriptor::segment_selector

type

uint8_t segment_descriptor::type

use_other_union

uint8_t segment_descriptor::use_other_union

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The documentation for this struct was generated from the following file:

• zephyr/arch/x86/ia32/segmentation.h