Andrew Walbran | dfb7337 | 2022-04-21 10:52:27 +0000 | [diff] [blame] | 1 | // Copyright 2022, The Android Open Source Project |
| 2 | // |
| 3 | // Licensed under the Apache License, Version 2.0 (the "License"); |
| 4 | // you may not use this file except in compliance with the License. |
| 5 | // You may obtain a copy of the License at |
| 6 | // |
| 7 | // http://www.apache.org/licenses/LICENSE-2.0 |
| 8 | // |
| 9 | // Unless required by applicable law or agreed to in writing, software |
| 10 | // distributed under the License is distributed on an "AS IS" BASIS, |
| 11 | // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 12 | // See the License for the specific language governing permissions and |
| 13 | // limitations under the License. |
| 14 | |
| 15 | //! Exception handlers. |
| 16 | |
Jakob Vukalovic | c9afb51 | 2023-03-30 16:04:32 +0000 | [diff] [blame] | 17 | use crate::{helpers::page_4kb_of, read_sysreg}; |
Pierre-Clément Tosi | da4440a | 2022-08-22 18:06:32 +0100 | [diff] [blame] | 18 | use vmbase::console; |
Andrew Walbran | dd74b90 | 2022-04-14 16:12:50 +0000 | [diff] [blame] | 19 | use vmbase::{console::emergency_write_str, eprintln, power::reboot}; |
Andrew Walbran | dfb7337 | 2022-04-21 10:52:27 +0000 | [diff] [blame] | 20 | |
Jakob Vukalovic | c9afb51 | 2023-03-30 16:04:32 +0000 | [diff] [blame] | 21 | const ESR_32BIT_EXT_DABT: usize = 0x96000010; |
Pierre-Clément Tosi | 446136e | 2022-10-19 10:10:42 +0100 | [diff] [blame] | 22 | const UART_PAGE: usize = page_4kb_of(console::BASE_ADDRESS); |
Pierre-Clément Tosi | da4440a | 2022-08-22 18:06:32 +0100 | [diff] [blame] | 23 | |
Andrew Walbran | dfb7337 | 2022-04-21 10:52:27 +0000 | [diff] [blame] | 24 | #[no_mangle] |
Pierre-Clément Tosi | 8cbd4b7 | 2022-08-11 13:59:31 +0100 | [diff] [blame] | 25 | extern "C" fn sync_exception_current(_elr: u64, _spsr: u64) { |
Jakob Vukalovic | c9afb51 | 2023-03-30 16:04:32 +0000 | [diff] [blame] | 26 | let esr = read_sysreg!("esr_el1"); |
| 27 | let far = read_sysreg!("far_el1"); |
Pierre-Clément Tosi | da4440a | 2022-08-22 18:06:32 +0100 | [diff] [blame] | 28 | // Don't print to the UART if we're handling the exception it could raise. |
Jakob Vukalovic | c9afb51 | 2023-03-30 16:04:32 +0000 | [diff] [blame] | 29 | if esr != ESR_32BIT_EXT_DABT || page_4kb_of(far) != UART_PAGE { |
Pierre-Clément Tosi | da4440a | 2022-08-22 18:06:32 +0100 | [diff] [blame] | 30 | emergency_write_str("sync_exception_current\n"); |
Jakob Vukalovic | c9afb51 | 2023-03-30 16:04:32 +0000 | [diff] [blame] | 31 | eprintln!("esr={esr:#08x}"); |
Pierre-Clément Tosi | da4440a | 2022-08-22 18:06:32 +0100 | [diff] [blame] | 32 | } |
Andrew Walbran | dd74b90 | 2022-04-14 16:12:50 +0000 | [diff] [blame] | 33 | reboot(); |
Andrew Walbran | dfb7337 | 2022-04-21 10:52:27 +0000 | [diff] [blame] | 34 | } |
| 35 | |
| 36 | #[no_mangle] |
Pierre-Clément Tosi | 8cbd4b7 | 2022-08-11 13:59:31 +0100 | [diff] [blame] | 37 | extern "C" fn irq_current(_elr: u64, _spsr: u64) { |
Andrew Walbran | dfb7337 | 2022-04-21 10:52:27 +0000 | [diff] [blame] | 38 | emergency_write_str("irq_current\n"); |
Andrew Walbran | dd74b90 | 2022-04-14 16:12:50 +0000 | [diff] [blame] | 39 | reboot(); |
Andrew Walbran | dfb7337 | 2022-04-21 10:52:27 +0000 | [diff] [blame] | 40 | } |
| 41 | |
| 42 | #[no_mangle] |
Pierre-Clément Tosi | 8cbd4b7 | 2022-08-11 13:59:31 +0100 | [diff] [blame] | 43 | extern "C" fn fiq_current(_elr: u64, _spsr: u64) { |
Andrew Walbran | dfb7337 | 2022-04-21 10:52:27 +0000 | [diff] [blame] | 44 | emergency_write_str("fiq_current\n"); |
Andrew Walbran | dd74b90 | 2022-04-14 16:12:50 +0000 | [diff] [blame] | 45 | reboot(); |
Andrew Walbran | dfb7337 | 2022-04-21 10:52:27 +0000 | [diff] [blame] | 46 | } |
| 47 | |
| 48 | #[no_mangle] |
Pierre-Clément Tosi | 8cbd4b7 | 2022-08-11 13:59:31 +0100 | [diff] [blame] | 49 | extern "C" fn serr_current(_elr: u64, _spsr: u64) { |
Jakob Vukalovic | c9afb51 | 2023-03-30 16:04:32 +0000 | [diff] [blame] | 50 | let esr = read_sysreg!("esr_el1"); |
Andrew Walbran | dfb7337 | 2022-04-21 10:52:27 +0000 | [diff] [blame] | 51 | emergency_write_str("serr_current\n"); |
Jakob Vukalovic | c9afb51 | 2023-03-30 16:04:32 +0000 | [diff] [blame] | 52 | eprintln!("esr={esr:#08x}"); |
Andrew Walbran | dd74b90 | 2022-04-14 16:12:50 +0000 | [diff] [blame] | 53 | reboot(); |
Andrew Walbran | dfb7337 | 2022-04-21 10:52:27 +0000 | [diff] [blame] | 54 | } |
| 55 | |
| 56 | #[no_mangle] |
Pierre-Clément Tosi | 8cbd4b7 | 2022-08-11 13:59:31 +0100 | [diff] [blame] | 57 | extern "C" fn sync_lower(_elr: u64, _spsr: u64) { |
Jakob Vukalovic | c9afb51 | 2023-03-30 16:04:32 +0000 | [diff] [blame] | 58 | let esr = read_sysreg!("esr_el1"); |
Andrew Walbran | dfb7337 | 2022-04-21 10:52:27 +0000 | [diff] [blame] | 59 | emergency_write_str("sync_lower\n"); |
Jakob Vukalovic | c9afb51 | 2023-03-30 16:04:32 +0000 | [diff] [blame] | 60 | eprintln!("esr={esr:#08x}"); |
Andrew Walbran | dd74b90 | 2022-04-14 16:12:50 +0000 | [diff] [blame] | 61 | reboot(); |
Andrew Walbran | dfb7337 | 2022-04-21 10:52:27 +0000 | [diff] [blame] | 62 | } |
| 63 | |
| 64 | #[no_mangle] |
Pierre-Clément Tosi | 8cbd4b7 | 2022-08-11 13:59:31 +0100 | [diff] [blame] | 65 | extern "C" fn irq_lower(_elr: u64, _spsr: u64) { |
Andrew Walbran | dfb7337 | 2022-04-21 10:52:27 +0000 | [diff] [blame] | 66 | emergency_write_str("irq_lower\n"); |
Andrew Walbran | dd74b90 | 2022-04-14 16:12:50 +0000 | [diff] [blame] | 67 | reboot(); |
Andrew Walbran | dfb7337 | 2022-04-21 10:52:27 +0000 | [diff] [blame] | 68 | } |
| 69 | |
| 70 | #[no_mangle] |
Pierre-Clément Tosi | 8cbd4b7 | 2022-08-11 13:59:31 +0100 | [diff] [blame] | 71 | extern "C" fn fiq_lower(_elr: u64, _spsr: u64) { |
Andrew Walbran | dfb7337 | 2022-04-21 10:52:27 +0000 | [diff] [blame] | 72 | emergency_write_str("fiq_lower\n"); |
Andrew Walbran | dd74b90 | 2022-04-14 16:12:50 +0000 | [diff] [blame] | 73 | reboot(); |
Andrew Walbran | dfb7337 | 2022-04-21 10:52:27 +0000 | [diff] [blame] | 74 | } |
| 75 | |
| 76 | #[no_mangle] |
Pierre-Clément Tosi | 8cbd4b7 | 2022-08-11 13:59:31 +0100 | [diff] [blame] | 77 | extern "C" fn serr_lower(_elr: u64, _spsr: u64) { |
Jakob Vukalovic | c9afb51 | 2023-03-30 16:04:32 +0000 | [diff] [blame] | 78 | let esr = read_sysreg!("esr_el1"); |
Andrew Walbran | dfb7337 | 2022-04-21 10:52:27 +0000 | [diff] [blame] | 79 | emergency_write_str("serr_lower\n"); |
Jakob Vukalovic | c9afb51 | 2023-03-30 16:04:32 +0000 | [diff] [blame] | 80 | eprintln!("esr={esr:#08x}"); |
Andrew Walbran | dd74b90 | 2022-04-14 16:12:50 +0000 | [diff] [blame] | 81 | reboot(); |
Andrew Walbran | dfb7337 | 2022-04-21 10:52:27 +0000 | [diff] [blame] | 82 | } |