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zipl/boot: move boot component struct definitions to boot_defs.h for reuse

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To reduce duplication of definitions and facilitate reuse between zipl
and zgetdump.

Signed-off-by: Alexander Egorenkov <egorenar@linux.ibm.com>
Reviewed-by: Mikhail Zaslonko <zaslonko@linux.ibm.com>
Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
This commit is contained in:
Alexander Egorenkov
2022-06-01 06:39:44 +02:00
committed by Jan Höppner
parent 5cd9ad13e5
commit fed12a71cf
5 changed files with 58 additions and 80 deletions
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include/boot/boot_defs.h
+35
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@@ -67,4 +67,39 @@ struct eckd_blockptr {
uint8_t reserved[8];
} __packed;
typedef enum {
COMPONENT_EXECUTE = 0x01,
COMPONENT_LOAD = 0x02,
COMPONENT_SIGNATURE = 0x03
} component_type;
typedef enum {
COMPONENT_HEADER_IPL = 0x00,
COMPONENT_HEADER_DUMP = 0x01
} component_header_type;
struct component_header {
uint8_t magic[4];
uint8_t type;
uint8_t reserved[27];
} __packed;
struct signature_header {
uint8_t format;
uint8_t reserved[3];
uint32_t length;
} __packed;
typedef union {
uint64_t load_address;
uint64_t load_psw;
struct signature_header sig_head;
} component_data;
struct component_entry {
uint8_t data[23];
uint8_t type;
component_data compdat;
} __packed;
#endif /* BOOT_DEFS_H */