Enum cortex_a::registers::SCTLR_EL2::C::Value

#[repr(u64)]
pub enum Value {
    NonCacheable,
    Cacheable,
}

Cacheability control, for data accesses.

0 The following are Non-cacheable for all levels of data and unified cache:

• Data accesses to Normal memory from EL2.
• When HCR_EL2.{E2H, TGE} != {1, 1}, Normal memory accesses to the EL2 translation tables.
• When EL2 is enabled in the current Security state and HCR_EL2.{E2H, TGE} == {1, 1}:
  • Data accesses to Normal memory from EL0.
  • Normal memory accesses to the EL2&0 translation tables.

1 This control has no effect on the Cacheability of:

• Data access to Normal memory from EL2.
• When HCR_EL2.{E2H, TGE} != {1, 1}, Normal memory accesses to the EL2 translation tables.
• When EL2 is enabled in the current Security state and HCR_EL2.{E2H, TGE} == {1, 1}:
  • Data accesses to Normal memory from EL0.
  • Normal memory accesses to the EL2&0 translation tables.

When EL2 is disabled in the current Security state or HCR_EL2.{E2H, TGE} != {1, 1}, this bit has no effect on the EL1&0 translation regime.

On a Warm reset, in a system where the PE resets into EL2, this field resets to 0.

Variants

NonCacheable

Cacheable

Trait Implementations

impl TryFromValue<u64> for Value

type EnumType = Value

fn try_from(v: u64) -> Option<Self::EnumType>