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/*
* This file is part of the libpayload project.
*
* Copyright 2013 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 <stdint.h>
#include <types.h>
#include <arch/cache.h>
#include <arch/exception.h>
#include <console/console.h>
void exception_sync_el0(uint64_t *regs, uint64_t esr);
void exception_irq_el0(uint64_t *regs, uint64_t esr);
void exception_fiq_el0(uint64_t *regs, uint64_t esr);
void exception_serror_el0(uint64_t *regs, uint64_t esr);
void exception_sync(uint64_t *regs, uint64_t esr);
void exception_irq(uint64_t *regs, uint64_t esr);
void exception_fiq(uint64_t *regs, uint64_t esr);
void exception_serror(uint64_t *regs, uint64_t esr);
static void print_regs(uint64_t *regs)
{
int i;
/* ELR contains the restart PC at target exception level */
printk(BIOS_ERR, "ELR = 0x%016llx ", regs[0]);
printk(BIOS_ERR, "X00 = 0x%016llx\n", regs[1]);
for (i = 2; i < 31; i+=2) {
printk(BIOS_ERR, "X%02d = 0x%016llx ", i - 1, regs[i]);
printk(BIOS_ERR, "X%02d = 0x%016llx\n", i, regs[i + 1]);
}
}
void exception_sync_el0(uint64_t *regs, uint64_t esr)
{
printk(BIOS_ERR, "exception _sync_el0 (ESR = 0x%08llx)\n", esr);
print_regs(regs);
die("exception");
}
void exception_irq_el0(uint64_t *regs, uint64_t esr)
{
printk(BIOS_ERR, "exception _irq_el0 (ESR = 0x%08llx)\n", esr);
print_regs(regs);
die("exception");
}
void exception_fiq_el0(uint64_t *regs, uint64_t esr)
{
printk(BIOS_ERR, "exception _fiq_el0 (ESR = 0x%08llx)\n", esr);
print_regs(regs);
die("exception");
}
void exception_serror_el0(uint64_t *regs, uint64_t esr)
{
printk(BIOS_ERR, "exception _serror_el0 (ESR = 0x%08llx)\n", esr);
print_regs(regs);
die("exception");
}
void exception_sync(uint64_t *regs, uint64_t esr)
{
printk(BIOS_ERR, "exception _sync (ESR = 0x%08llx)\n", esr);
print_regs(regs);
die("exception");
}
void exception_irq(uint64_t *regs, uint64_t esr)
{
printk(BIOS_ERR, "exception _irq (ESR = 0x%08llx)\n", esr);
print_regs(regs);
die("exception");
}
void exception_fiq(uint64_t *regs, uint64_t esr)
{
printk(BIOS_ERR, "exception _fiq (ESR = 0x%08llx)\n", esr);
print_regs(regs);
die("exception");
}
void exception_serror(uint64_t *regs, uint64_t esr)
{
printk(BIOS_ERR, "exception _serror (ESR = 0x%08llx)\n", esr);
print_regs(regs);
die("exception");
}
void exception_init(void)
{
//uint32_t sctlr = read_sctlr();
/* Handle exceptions in ARM mode. */
//sctlr &= ~SCTLR_TE;
/* Set V=0 in SCTLR so VBAR points to the exception vector table. */
//sctlr &= ~SCTLR_V;
/* Enforce alignment temporarily. */
//write_sctlr(sctlr);
extern uint32_t exception_table[];
set_vbar((uintptr_t)exception_table);
printk(BIOS_DEBUG, "Exception handlers installed.\n");
}
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