Enum aarch64::regs::CPACR_EL1::TTA::Value

#[repr(u64)]
pub enum Value {
    NoTrap = 0,
    TrapTrace = 1,
}

Traps EL0 and EL1 System register accesses to all implemented trace registers from both Execution states to EL1, or to EL2 when it is implemented and enabled in the current Security state and HCR_EL2.TGE is 1, as follows:

• In AArch64 state, accesses to trace registers are trapped, reported using ESR_ELx.EC value 0x18.

• In AArch32 state, MRC and MCR accesses to trace registers are trapped, reported using ESR_ELx.EC value 0x05.

• In AArch32 state, MCR and MCRR accesses to trace registers are trapped, reported using ESR_ELx.EC value 0x0C.

System register accesses to the trace registers can have side-effects. When a System register access is trapped, any side-effects that are normally associated with the access do not occur before the exception is taken.

If System register access to the trace functionality is not implemented, this bit is considered reserved.

On a Warm reset, this field resets to an undefined value.

Variants

NoTrap = 0

This control does not cause any instructions to be trapped.

TrapTrace = 1

This control causes EL0 and EL1 System register accesses to all implemented trace registers to be trapped.

Trait Implementations

impl Clone for Value

fn clone(&self) -> Value

Returns a copy of the value.

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

Performs copy-assignment from source.

impl PartialEq for Value

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

This method tests for self and other values to be equal, and is used by ==.

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

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

impl TryFromValue<u64> for Value

type EnumType = Value

fn try_from_value(v: u64) -> Option<<Value as TryFromValue<u64>>::EnumType>

impl Copy for Value

impl Eq for Value

impl StructuralPartialEq for Value