1/* SPDX-License-Identifier: GPL-2.0 */
2/*
3 *  fs/partitions/mac.h
4 */
5
6#define MAC_PARTITION_MAGIC	0x504d
7
8/* type field value for A/UX or other Unix partitions */
9#define APPLE_AUX_TYPE	"Apple_UNIX_SVR2"
10
11struct mac_partition {
12	__be16	signature;	/* expected to be MAC_PARTITION_MAGIC */
13	__be16	res1;
14	__be32	map_count;	/* # blocks in partition map */
15	__be32	start_block;	/* absolute starting block # of partition */
16	__be32	block_count;	/* number of blocks in partition */
17	char	name[32];	/* partition name */
18	char	type[32];	/* string type description */
19	__be32	data_start;	/* rel block # of first data block */
20	__be32	data_count;	/* number of data blocks */
21	__be32	status;		/* partition status bits */
22	__be32	boot_start;
23	__be32	boot_size;
24	__be32	boot_load;
25	__be32	boot_load2;
26	__be32	boot_entry;
27	__be32	boot_entry2;
28	__be32	boot_cksum;
29	char	processor[16];	/* identifies ISA of boot */
30	/* there is more stuff after this that we don't need */
31};
32
33#define MAC_STATUS_BOOTABLE	8	/* partition is bootable */
34
35#define MAC_DRIVER_MAGIC	0x4552
36
37/* Driver descriptor structure, in block 0 */
38struct mac_driver_desc {
39	__be16	signature;	/* expected to be MAC_DRIVER_MAGIC */
40	__be16	block_size;
41	__be32	block_count;
42    /* ... more stuff */
43};
44
45