From b21eaa74a656fa33f943f76ea0c53ca8374760f6 Mon Sep 17 00:00:00 2001 From: "Ronald G. Minnich" Date: Thu, 7 Mar 2013 15:23:45 -0800 Subject: ARMV7 and Google/Snow: Add exception support code to the ramstage This is previously used exception code from libpayload. On startup it installs and then tests an exception handler. The test is an unaligned memory operation. Yes, we've seen what might be exceptions in the ramstage, and it makes sense to handle them. This code is identical in structure and operation to the previously committed payload exception handler, though we reserve the right to change it as circumstances require. The remaining question is whether we need it in romstage. Change-Id: I24484686c33c9757af8ba171ebae9773828fb69d Signed-off-by: Gabe Black Signed-off-by: Ronald G. Minnich Reviewed-on: http://review.coreboot.org/2614 Tested-by: build bot (Jenkins) Reviewed-by: David Hendricks --- src/arch/armv7/include/arch/exception.h | 38 +++++++++++++++++++++++++++++++++ 1 file changed, 38 insertions(+) create mode 100644 src/arch/armv7/include/arch/exception.h (limited to 'src/arch/armv7/include') diff --git a/src/arch/armv7/include/arch/exception.h b/src/arch/armv7/include/arch/exception.h new file mode 100644 index 0000000000..57076bd57b --- /dev/null +++ b/src/arch/armv7/include/arch/exception.h @@ -0,0 +1,38 @@ +/* + * 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. + */ + +#ifndef _ARCH_EXCEPTION_H +#define _ARCH_EXCEPTION_H + +#include + +void exception_init(void); +void set_vbar(uint32_t vbar); + +#endif -- cgit v1.2.3