1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 */ 2*4882a593Smuzhiyun /* 3*4882a593Smuzhiyun * fs/partitions/mac.h 4*4882a593Smuzhiyun */ 5*4882a593Smuzhiyun 6*4882a593Smuzhiyun #define MAC_PARTITION_MAGIC 0x504d 7*4882a593Smuzhiyun 8*4882a593Smuzhiyun /* type field value for A/UX or other Unix partitions */ 9*4882a593Smuzhiyun #define APPLE_AUX_TYPE "Apple_UNIX_SVR2" 10*4882a593Smuzhiyun 11*4882a593Smuzhiyun struct mac_partition { 12*4882a593Smuzhiyun __be16 signature; /* expected to be MAC_PARTITION_MAGIC */ 13*4882a593Smuzhiyun __be16 res1; 14*4882a593Smuzhiyun __be32 map_count; /* # blocks in partition map */ 15*4882a593Smuzhiyun __be32 start_block; /* absolute starting block # of partition */ 16*4882a593Smuzhiyun __be32 block_count; /* number of blocks in partition */ 17*4882a593Smuzhiyun char name[32]; /* partition name */ 18*4882a593Smuzhiyun char type[32]; /* string type description */ 19*4882a593Smuzhiyun __be32 data_start; /* rel block # of first data block */ 20*4882a593Smuzhiyun __be32 data_count; /* number of data blocks */ 21*4882a593Smuzhiyun __be32 status; /* partition status bits */ 22*4882a593Smuzhiyun __be32 boot_start; 23*4882a593Smuzhiyun __be32 boot_size; 24*4882a593Smuzhiyun __be32 boot_load; 25*4882a593Smuzhiyun __be32 boot_load2; 26*4882a593Smuzhiyun __be32 boot_entry; 27*4882a593Smuzhiyun __be32 boot_entry2; 28*4882a593Smuzhiyun __be32 boot_cksum; 29*4882a593Smuzhiyun char processor[16]; /* identifies ISA of boot */ 30*4882a593Smuzhiyun /* there is more stuff after this that we don't need */ 31*4882a593Smuzhiyun }; 32*4882a593Smuzhiyun 33*4882a593Smuzhiyun #define MAC_STATUS_BOOTABLE 8 /* partition is bootable */ 34*4882a593Smuzhiyun 35*4882a593Smuzhiyun #define MAC_DRIVER_MAGIC 0x4552 36*4882a593Smuzhiyun 37*4882a593Smuzhiyun /* Driver descriptor structure, in block 0 */ 38*4882a593Smuzhiyun struct mac_driver_desc { 39*4882a593Smuzhiyun __be16 signature; /* expected to be MAC_DRIVER_MAGIC */ 40*4882a593Smuzhiyun __be16 block_size; 41*4882a593Smuzhiyun __be32 block_count; 42*4882a593Smuzhiyun /* ... more stuff */ 43*4882a593Smuzhiyun }; 44*4882a593Smuzhiyun 45