From eba0cfa6b0bef4f2e73c8630a7efa3944df8b0f8 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Fri, 19 Apr 2024 04:56:35 +0200 Subject: Adding upstream version 1:2.0.27. Signed-off-by: Daniel Baumann --- purgatory/arch/ppc64/crashdump_backup.c | 39 +++++++++++++++++++++++++++++++++ 1 file changed, 39 insertions(+) create mode 100644 purgatory/arch/ppc64/crashdump_backup.c (limited to 'purgatory/arch/ppc64/crashdump_backup.c') diff --git a/purgatory/arch/ppc64/crashdump_backup.c b/purgatory/arch/ppc64/crashdump_backup.c new file mode 100644 index 0000000..7ba5aff --- /dev/null +++ b/purgatory/arch/ppc64/crashdump_backup.c @@ -0,0 +1,39 @@ +/* + * kexec: Linux boots Linux + * + * Created by: Mohan Kumar M (mohan@in.ibm.com) + * + * Copyright (C) IBM Corporation, 2005. All rights reserved + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation (version 2 of the License). + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#include +#include +#include "../../../kexec/arch/ppc64/crashdump-ppc64.h" + +extern unsigned long backup_start; + +/* Backup first 32KB of memory to backup region reserved by kexec */ +void crashdump_backup_memory(void) +{ + void *dest, *src; + + src = (void *)BACKUP_SRC_START; + + if (backup_start) { + dest = (void *)(backup_start); + memcpy(dest, src, BACKUP_SRC_SIZE); + } +} -- cgit v1.2.3