cortex_a/registers/
currentel.rs

1// SPDX-License-Identifier: Apache-2.0 OR MIT
2//
3// Copyright (c) 2018-2022 by the author(s)
4//
5// Author(s):
6//   - Andre Richter <andre.o.richter@gmail.com>
7
8//! Current Exception Level
9//!
10//! Holds the current Exception level.
11
12use tock_registers::{interfaces::Readable, register_bitfields};
13
14register_bitfields! {u64,
15    pub CurrentEL [
16        /// Current Exception level. Possible values of this field are:
17        ///
18        /// 00 EL0
19        /// 01 EL1
20        /// 10 EL2
21        /// 11 EL3
22        ///
23        /// When the HCR_EL2.NV bit is 1, Non-secure EL1 read accesses to the CurrentEL register
24        /// return the value of 0x2 in this field.
25        ///
26        /// This field resets to a value that is architecturally UNKNOWN.
27        EL OFFSET(2) NUMBITS(2) [
28            EL0 = 0,
29            EL1 = 1,
30            EL2 = 2,
31            EL3 = 3
32        ]
33    ]
34}
35
36pub struct Reg;
37
38impl Readable for Reg {
39    type T = u64;
40    type R = CurrentEL::Register;
41
42    sys_coproc_read_raw!(u64, "CurrentEL", "x");
43}
44
45#[allow(non_upper_case_globals)]
46pub const CurrentEL: Reg = Reg {};
cortex_a/registers/currentel.rs

cortex_a/registers/
currentel.rs
