| /* |
| * This file is part of the libpayload project. |
| * |
| * Copyright 2014 Google Inc. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * 3. The name of the author may not be used to endorse or promote products |
| * derived from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND |
| * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
| * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| * SUCH DAMAGE. |
| */ |
| |
| #include <arch/asm.h> |
| |
| .text |
| |
| .align 11 |
| .global exception_table |
| exception_table: |
| .align 7 |
| bl exception_prologue |
| bl exception_sync_el0 |
| .align 7 |
| bl exception_prologue |
| bl exception_irq_el0 |
| .align 7 |
| bl exception_prologue |
| bl exception_fiq_el0 |
| .align 7 |
| bl exception_prologue |
| bl exception_serror_el0 |
| .align 7 |
| bl exception_prologue |
| bl exception_sync |
| .align 7 |
| bl exception_prologue |
| bl exception_irq |
| .align 7 |
| bl exception_prologue |
| bl exception_fiq |
| .align 7 |
| bl exception_prologue |
| bl exception_serror |
| |
| /* |
| * Save state (register file + ELR) to stack |
| * and set arguments x0 and x1 for exception call |
| */ |
| ENTRY(exception_prologue) |
| stp x29, x30, [sp, #-16]! |
| stp x27, x28, [sp, #-16]! |
| stp x25, x26, [sp, #-16]! |
| stp x23, x24, [sp, #-16]! |
| stp x21, x22, [sp, #-16]! |
| stp x19, x20, [sp, #-16]! |
| stp x17, x18, [sp, #-16]! |
| stp x15, x16, [sp, #-16]! |
| stp x13, x14, [sp, #-16]! |
| stp x11, x12, [sp, #-16]! |
| stp x9, x10, [sp, #-16]! |
| stp x7, x8, [sp, #-16]! |
| stp x5, x6, [sp, #-16]! |
| stp x3, x4, [sp, #-16]! |
| stp x1, x2, [sp, #-16]! |
| |
| /* FIXME: Don't assume always running in EL2 */ |
| mrs x1, elr_el2 |
| stp x1, x0, [sp, #-16]! |
| |
| mrs x1, esr_el2 |
| mov x0, sp |
| |
| ret |
| ENDPROC(exception_prologue) |
| |
| .global exception_stack_end |
| exception_stack_end: |
| .quad 0 |
| |
| exception_handler: |
| .word 0 |
| |
| .global set_vbar |
| set_vbar: |
| msr vbar_el2, x0 |
| ret |