[PATCH 09/18] cbfs: Add some more definititions
Simon Glass
sjg at chromium.org
Mon Feb 28 20:08:26 CET 2022
Add definitions for a payload or 'self', which is like an unpacked ELF
file.
Signed-off-by: Simon Glass <sjg at chromium.org>
---
include/cbfs.h | 43 +++++++++++++++++++++++++++++++++++++++++++
1 file changed, 43 insertions(+)
diff --git a/include/cbfs.h b/include/cbfs.h
index 7449873b49..38efb1d2b0 100644
--- a/include/cbfs.h
+++ b/include/cbfs.h
@@ -24,6 +24,8 @@ enum cbfs_filetype {
CBFS_TYPE_CBFSHEADER = 0x02,
CBFS_TYPE_STAGE = 0x10,
CBFS_TYPE_PAYLOAD = 0x20,
+ CBFS_TYPE_SELF = CBFS_TYPE_PAYLOAD,
+
CBFS_TYPE_FIT = 0x21,
CBFS_TYPE_OPTIONROM = 0x30,
CBFS_TYPE_BOOTSPLASH = 0x40,
@@ -120,6 +122,47 @@ struct cbfs_file_attr_hash {
u8 hash_data[];
} __packed;
+/*** Component sub-headers ***/
+
+/* Following are component sub-headers for the "standard" component types */
+
+/**
+ * struct cbfs_stage - sub-header for stage components
+ *
+ * Stages are loaded by coreboot during the normal boot process
+ */
+struct cbfs_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 */
+} __packed;
+
+/**
+ * struct cbfs_payload_segment - sub-header for payload components
+ *
+ * Payloads are loaded by coreboot at the end of the boot process
+ */
+struct cbfs_payload_segment {
+ u32 type;
+ u32 compression;
+ u32 offset;
+ u64 load_addr;
+ u32 len;
+ u32 mem_len;
+} __packed;
+
+struct cbfs_payload {
+ struct cbfs_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 cbfs_cachenode {
struct cbfs_cachenode *next;
void *data;
--
2.35.1.574.g5d30c73bfb-goog
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