Struct tartan_arch::x86_common::protection::GateDescriptorFlags

pub struct GateDescriptorFlags(/* private fields */);

Available on x86 or x86-64 only.

Settings for GateDescriptors.

Implementations

impl GateDescriptorFlags

pub fn call_param_count(&self) -> u8

Number of stack parameters to copy if the code segment referenced by a call gate uses a different stack segment.

Only applies to call gates.

pub fn interrupt_stack_index(&self) -> u8

Available on x86-64 only.

One-based index of the interrupt_stack pointer to use when handling an interrupt though this gate.

If this value is zero, then the stack segment is set to null.

Only applies to interrupt and trap gates.

pub fn set_call_param_count(&mut self, value: u8)

Number of stack parameters to copy if the code segment referenced by a call gate uses a different stack segment.

Only applies to call gates.

pub fn with_call_param_count(&self, value: u8) -> Self

Number of stack parameters to copy if the code segment referenced by a call gate uses a different stack segment.

Only applies to call gates.

pub fn set_interrupt_stack_index(&mut self, value: u8)

Available on x86-64 only.

One-based index of the interrupt_stack pointer to use when handling an interrupt though this gate.

If this value is zero, then the stack segment is set to null.

Only applies to interrupt and trap gates.

pub fn with_interrupt_stack_index(&self, value: u8) -> Self

Available on x86-64 only.

One-based index of the interrupt_stack pointer to use when handling an interrupt though this gate.

If this value is zero, then the stack segment is set to null.

Only applies to interrupt and trap gates.

Trait Implementations

impl Bitfield<u32> for GateDescriptorFlags

fn new(value: T) -> Self

Construct a new bitfield type from its underlying representation

fn value(self) -> T

Unwrap the bitfield into its underlying representation

impl Clone for GateDescriptorFlags

fn clone(&self) -> GateDescriptorFlags

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for GateDescriptorFlags

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for GateDescriptorFlags

fn default() -> GateDescriptorFlags

Returns the “default value” for a type.

impl DescriptorFlags for GateDescriptorFlags

fn system_type(&self) -> SystemDescriptorType

If this is a system descriptor, indicates which type.

fn application_accessed(&self) -> bool

The processor sets this bit whenever a segment register points to this segment.

fn code_readable(&self) -> bool

If this is a code descriptor, indicates that the segment can be read. Otherwise, it is execute-only.

fn data_writable(&self) -> bool

If this is a data descriptor, indicates that this segment is writable.

fn code_conforming(&self) -> bool

If this is a code descriptor, indicates that this segment can be executed with lower privileges than privilege_level.

fn data_expand_down(&self) -> bool

If this is a data descriptor, indicates that the segment expands toward lower addresses (stack-like) if its limit is changed.

fn is_code(&self) -> bool

Indicates whether this is a code (true) or data (false) descriptor.

fn is_application(&self) -> bool

S: Indicates that this is an application section descriptor if true. Otherwise, this is a system descriptor.

fn privilege_level(&self) -> u8

DPL: The privilege level associated with the segment.

fn present(&self) -> bool

P: Indicates that the segment is defined.

fn code_mode_64(&self) -> bool

Available on x86-64 only.

L: If this is a code segment, indicates that it should be executed in 64-bit mode.

fn application_mode_32(&self) -> bool

D/B: Indicates that the segment uses 32-bit mode. Otherwise, it is 16-bit, unless code_mode_64 is set.

fn set_system_type(&mut self, value: SystemDescriptorType)

If this is a system descriptor, indicates which type.

fn with_system_type(&self, value: SystemDescriptorType) -> Self

If this is a system descriptor, indicates which type.

fn set_application_accessed(&mut self, value: bool)

The processor sets this bit whenever a segment register points to this segment.

fn with_application_accessed(&mut self, value: bool) -> Self

The processor sets this bit whenever a segment register points to this segment.

fn set_code_readable(&mut self, value: bool)

If this is a code descriptor, indicates that the segment can be read. Otherwise, it is execute-only.

fn with_code_readable(&mut self, value: bool) -> Self

If this is a code descriptor, indicates that the segment can be read. Otherwise, it is execute-only.

fn set_data_writable(&mut self, value: bool)

If this is a data descriptor, indicates that this segment is writable.

fn with_data_writable(&mut self, value: bool) -> Self

If this is a data descriptor, indicates that this segment is writable.

fn set_code_conforming(&mut self, value: bool)

If this is a code descriptor, indicates that this segment can be executed with lower privileges than privilege_level.

fn with_code_conforming(&mut self, value: bool) -> Self

If this is a code descriptor, indicates that this segment can be executed with lower privileges than privilege_level.

fn set_data_expand_down(&mut self, value: bool)

If this is a data descriptor, indicates that the segment expands toward lower addresses (stack-like) if its limit is changed.

fn with_data_expand_down(&mut self, value: bool) -> Self

If this is a data descriptor, indicates that the segment expands toward lower addresses (stack-like) if its limit is changed.

fn set_is_code(&mut self, value: bool)

Indicates whether this is a code (true) or data (false) descriptor.

fn with_is_code(&mut self, value: bool) -> Self

Indicates whether this is a code (true) or data (false) descriptor.

fn set_is_application(&mut self, value: bool)

S: Indicates that this is an application section descriptor if true. Otherwise, this is a system descriptor.

fn with_is_application(&mut self, value: bool) -> Self

S: Indicates that this is an application section descriptor if true. Otherwise, this is a system descriptor.

fn set_privilege_level(&mut self, value: u8)

DPL: The privilege level associated with the segment.

fn with_privilege_level(&self, value: u8) -> Self

DPL: The privilege level associated with the segment.

fn set_present(&mut self, value: bool)

P: Indicates that the segment is defined.

fn with_present(&mut self, value: bool) -> Self

P: Indicates that the segment is defined.

fn set_code_mode_64(&mut self, value: bool)

Available on x86-64 only.

L: If this is a code segment, indicates that it should be executed in 64-bit mode.

fn with_code_mode_64(&mut self, value: bool) -> Self

Available on x86-64 only.

L: If this is a code segment, indicates that it should be executed in 64-bit mode.

fn set_application_mode_32(&mut self, value: bool)

D/B: Indicates that the segment uses 32-bit mode. Otherwise, it is 16-bit, unless code_mode_64 is set.

fn with_application_mode_32(&mut self, value: bool) -> Self

D/B: Indicates that the segment uses 32-bit mode. Otherwise, it is 16-bit, unless code_mode_64 is set.

fn fmt_fields(&self, f: &mut DebugStruct<'_, '_>)

Print this object’s bitfield values. Helper method for Debug implementations.

fn is_gate(&self) -> bool

Indicates that this is a GateDescriptor.

impl From<GateDescriptorFlags> for u32

fn from(val: GateDescriptorFlags) -> Self

Converts to this type from the input type.

impl From<u32> for GateDescriptorFlags

fn from(val: u32) -> Self

Converts to this type from the input type.

impl PartialEq for GateDescriptorFlags

fn eq(&self, other: &GateDescriptorFlags) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for GateDescriptorFlags

impl Eq for GateDescriptorFlags

impl StructuralPartialEq for GateDescriptorFlags