[coreboot] [v2] r4044 - trunk/coreboot-v2/src/include
svn at coreboot.org
svn at coreboot.org
Wed Apr 1 18:06:34 CEST 2009
Author: rminnich
Date: 2009-04-01 18:06:33 +0200 (Wed, 01 Apr 2009)
New Revision: 4044
Added:
trunk/coreboot-v2/src/include/romfs.h
Log:
forgot this.
Signed-off-by: Ronald G. Minnich <rminnich at gmail.com>
Acked-by: Ronald G. Minnich <rminnich at gmail.com>
Added: trunk/coreboot-v2/src/include/romfs.h
===================================================================
--- trunk/coreboot-v2/src/include/romfs.h (rev 0)
+++ trunk/coreboot-v2/src/include/romfs.h 2009-04-01 16:06:33 UTC (rev 4044)
@@ -0,0 +1,170 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2008 Jordan Crouse <jordan at cosmicpenguin.net>
+ *
+ * This file is dual-licensed. You can choose between:
+ * - The GNU GPL, version 2, as published by the Free Software Foundation
+ * - The revised BSD license (without advertising clause)
+ *
+ * ---------------------------------------------------------------------------
+ * 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., 51 Franklin St, Fifth Floor, Boston, MA, 02110-1301 USA
+ * ---------------------------------------------------------------------------
+ * 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 _ROMFS_H_
+#define _ROMFS_H_
+
+/** These are standard values for the known compression
+ alogrithms that coreboot knows about for stages and
+ payloads. Of course, other LAR users can use whatever
+ values they want, as long as they understand them. */
+
+#define ROMFS_COMPRESS_NONE 0
+#define ROMFS_COMPRESS_LZMA 1
+#define ROMFS_COMPRESS_NRV2B 2
+
+/** These are standard component types for well known
+ components (i.e - those that coreboot needs to consume.
+ Users are welcome to use any other value for their
+ components */
+
+#define ROMFS_TYPE_STAGE 0x10
+#define ROMFS_TYPE_PAYLOAD 0x20
+#define ROMFS_TYPE_OPTIONROM 0x30
+
+/** this is the master romfs header - it need to be
+ located somewhere in the bootblock. Where it
+ actually lives is up to coreboot. A pointer to
+ this header will live at 0xFFFFFFFc, so we can
+ easily find it. */
+
+#define ROMFS_HEADER_MAGIC 0x4F524243
+#define ROMFS_HEADPTR_ADDR 0xFFFFFFFc
+#define VERSION1 0x31313131
+
+struct romfs_header {
+ u32 magic;
+ u32 version;
+ u32 romsize;
+ u32 bootblocksize;
+ u32 align;
+ u32 offset;
+ u32 pad[2];
+} __attribute__((packed));
+
+/** This is a component header - every entry in the ROMFS
+ will have this header.
+
+ This is how the component is arranged in the ROM:
+
+ -------------- <- 0
+ component header
+ -------------- <- sizeof(struct component)
+ component name
+ -------------- <- offset
+ data
+ ...
+ -------------- <- offset + len
+*/
+
+#define ROMFS_FILE_MAGIC "LARCHIVE"
+
+struct romfs_file {
+ char magic[8];
+ u32 len;
+ u32 type;
+ u32 checksum;
+ u32 offset;
+} __attribute__((packed));
+
+/*** Component sub-headers ***/
+
+/* Following are component sub-headers for the "standard"
+ component types */
+
+/** This is the sub-header for stage components. Stages are
+ loaded by coreboot during the normal boot process */
+
+struct romfs_stage {
+ u32 compression; /** Compression type */
+ u64 entry; /** entry point */
+ u64 load; /** Where to load in memory */
+ u32 len; /** length of data to load */
+ u32 memlen; /** total length of object in memory */
+} __attribute__((packed));
+
+/** this is the sub-header for payload components. Payloads
+ are loaded by coreboot at the end of the boot process */
+
+struct romfs_payload_segment {
+ u32 type;
+ u32 compression;
+ u32 offset;
+ u64 load_addr;
+ u32 len;
+ u32 mem_len;
+} __attribute__((packed));
+
+struct romfs_payload {
+ struct romfs_payload_segment segments;
+};
+
+#define PAYLOAD_SEGMENT_CODE 0x45444F43
+#define PAYLOAD_SEGMENT_DATA 0x41544144
+#define PAYLOAD_SEGMENT_BSS 0x20535342
+#define PAYLOAD_SEGMENT_PARAMS 0x41524150
+#define PAYLOAD_SEGMENT_ENTRY 0x52544E45
+
+struct romfs_optionrom {
+ u32 compression;
+ u32 len;
+} __attribute__((packed));
+
+#define ROMFS_NAME(_c) (((char *) (_c)) + sizeof(struct romfs_file))
+#define ROMFS_SUBHEADER(_p) ( (void *) ((((u8 *) (_p)) + ntohl((_p)->offset))) )
+
+void * romfs_load_payload(struct lb_memory *lb_mem, const char *name);
+void * romfs_load_stage(const char *name);
+int romfs_execute_stage(const char *name);
+void * romfs_get_file(const char *name);
+int romfs_load_optionrom(const char *name, u32 dest);
+
+int run_address(void *f);
+
+#endif
+
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