| /* |
| * Copyright (c) 2019 Carlo Caione <ccaione@baylibre.com> |
| * |
| * SPDX-License-Identifier: Apache-2.0 |
| */ |
| |
| /** |
| * @file |
| * @brief Populated vector table |
| */ |
| |
| #include <toolchain.h> |
| #include <linker/sections.h> |
| #include <arch/cpu.h> |
| #include "vector_table.h" |
| #include "macro_priv.inc" |
| |
| _ASM_FILE_PROLOGUE |
| |
| /* |
| * Four types of exceptions: |
| * - synchronous: aborts from MMU, SP/CP alignment checking, unallocated |
| * instructions, SVCs/SMCs/HVCs, ...) |
| * - IRQ: group 1 (normal) interrupts |
| * - FIQ: group 0 or secure interrupts |
| * - SError: fatal system errors |
| * |
| * Four different contexts: |
| * - from same exception level, when using the SP_EL0 stack pointer |
| * - from same exception level, when using the SP_ELx stack pointer |
| * - from lower exception level, when this is AArch64 |
| * - from lower exception level, when this is AArch32 |
| * |
| * +------------------+------------------+-------------------------+ |
| * | Address | Exception type | Description | |
| * +------------------+------------------+-------------------------+ |
| * | VBAR_ELn + 0x000 | Synchronous | Current EL with SP0 | |
| * | + 0x080 | IRQ / vIRQ | | |
| * | + 0x100 | FIQ / vFIQ | | |
| * | + 0x180 | SError / vSError | | |
| * +------------------+------------------+-------------------------+ |
| * | + 0x200 | Synchronous | Current EL with SPx | |
| * | + 0x280 | IRQ / vIRQ | | |
| * | + 0x300 | FIQ / vFIQ | | |
| * | + 0x380 | SError / vSError | | |
| * +------------------+------------------+-------------------------+ |
| * | + 0x400 | Synchronous | Lower EL using AArch64 | |
| * | + 0x480 | IRQ / vIRQ | | |
| * | + 0x500 | FIQ / vFIQ | | |
| * | + 0x580 | SError / vSError | | |
| * +------------------+------------------+-------------------------+ |
| * | + 0x600 | Synchronous | Lower EL using AArch64 | |
| * | + 0x680 | IRQ / vIRQ | | |
| * | + 0x700 | FIQ / vFIQ | | |
| * | + 0x780 | SError / vSError | | |
| * +------------------+------------------+-------------------------+ |
| */ |
| |
| /* The whole table must be 2K aligned */ |
| .align 11 |
| SECTION_SUBSEC_FUNC(exc_vector_table,_vector_table_section,_vector_table) |
| |
| /* Current EL with SP0 / Synchronous */ |
| .align 7 |
| b . |
| |
| /* Current EL with SP0 / IRQ */ |
| .align 7 |
| b . |
| |
| /* Current EL with SP0 / FIQ */ |
| .align 7 |
| b . |
| |
| /* Current EL with SP0 / SError */ |
| .align 7 |
| b . |
| |
| /* Current EL with SPx / Synchronous */ |
| .align 7 |
| b z_arm64_svc |
| |
| /* Current EL with SPx / IRQ */ |
| .align 7 |
| b _isr_wrapper |
| |
| /* Current EL with SPx / FIQ */ |
| .align 7 |
| b . |
| |
| /* Current EL with SPx / SError */ |
| .align 7 |
| z_arm64_enter_exc |
| |
| mov x1, sp |
| mov x0, #0 /* K_ERR_CPU_EXCEPTION */ |
| |
| b z_arm64_fatal_error |
| |
