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Diffstat (limited to 'include/asm-s390/ipl.h')
-rw-r--r-- | include/asm-s390/ipl.h | 150 |
1 files changed, 150 insertions, 0 deletions
diff --git a/include/asm-s390/ipl.h b/include/asm-s390/ipl.h new file mode 100644 index 000000000000..bdcd448d43fb --- /dev/null +++ b/include/asm-s390/ipl.h | |||
@@ -0,0 +1,150 @@ | |||
1 | /* | ||
2 | * s390 (re)ipl support | ||
3 | * | ||
4 | * Copyright IBM Corp. 2007 | ||
5 | */ | ||
6 | |||
7 | #ifndef _ASM_S390_IPL_H | ||
8 | #define _ASM_S390_IPL_H | ||
9 | |||
10 | #include <asm/types.h> | ||
11 | #include <asm/cio.h> | ||
12 | #include <asm/setup.h> | ||
13 | |||
14 | #define IPL_PARMBLOCK_ORIGIN 0x2000 | ||
15 | |||
16 | #define IPL_PARM_BLK_FCP_LEN (sizeof(struct ipl_list_hdr) + \ | ||
17 | sizeof(struct ipl_block_fcp)) | ||
18 | |||
19 | #define IPL_PARM_BLK0_FCP_LEN (sizeof(struct ipl_block_fcp) + 8) | ||
20 | |||
21 | #define IPL_PARM_BLK_CCW_LEN (sizeof(struct ipl_list_hdr) + \ | ||
22 | sizeof(struct ipl_block_ccw)) | ||
23 | |||
24 | #define IPL_PARM_BLK0_CCW_LEN (sizeof(struct ipl_block_ccw) + 8) | ||
25 | |||
26 | #define IPL_MAX_SUPPORTED_VERSION (0) | ||
27 | |||
28 | #define IPL_PARMBLOCK_START ((struct ipl_parameter_block *) \ | ||
29 | IPL_PARMBLOCK_ORIGIN) | ||
30 | #define IPL_PARMBLOCK_SIZE (IPL_PARMBLOCK_START->hdr.len) | ||
31 | |||
32 | struct ipl_list_hdr { | ||
33 | u32 len; | ||
34 | u8 reserved1[3]; | ||
35 | u8 version; | ||
36 | u32 blk0_len; | ||
37 | u8 pbt; | ||
38 | u8 flags; | ||
39 | u16 reserved2; | ||
40 | } __attribute__((packed)); | ||
41 | |||
42 | struct ipl_block_fcp { | ||
43 | u8 reserved1[313-1]; | ||
44 | u8 opt; | ||
45 | u8 reserved2[3]; | ||
46 | u16 reserved3; | ||
47 | u16 devno; | ||
48 | u8 reserved4[4]; | ||
49 | u64 wwpn; | ||
50 | u64 lun; | ||
51 | u32 bootprog; | ||
52 | u8 reserved5[12]; | ||
53 | u64 br_lba; | ||
54 | u32 scp_data_len; | ||
55 | u8 reserved6[260]; | ||
56 | u8 scp_data[]; | ||
57 | } __attribute__((packed)); | ||
58 | |||
59 | struct ipl_block_ccw { | ||
60 | u8 load_param[8]; | ||
61 | u8 reserved1[84]; | ||
62 | u8 reserved2[2]; | ||
63 | u16 devno; | ||
64 | u8 vm_flags; | ||
65 | u8 reserved3[3]; | ||
66 | u32 vm_parm_len; | ||
67 | u8 reserved4[80]; | ||
68 | } __attribute__((packed)); | ||
69 | |||
70 | struct ipl_parameter_block { | ||
71 | struct ipl_list_hdr hdr; | ||
72 | union { | ||
73 | struct ipl_block_fcp fcp; | ||
74 | struct ipl_block_ccw ccw; | ||
75 | } ipl_info; | ||
76 | } __attribute__((packed)); | ||
77 | |||
78 | /* | ||
79 | * IPL validity flags | ||
80 | */ | ||
81 | extern u32 ipl_flags; | ||
82 | |||
83 | extern u32 dump_prefix_page; | ||
84 | |||
85 | extern void do_reipl(void); | ||
86 | extern void ipl_save_parameters(void); | ||
87 | |||
88 | enum { | ||
89 | IPL_DEVNO_VALID = 1, | ||
90 | IPL_PARMBLOCK_VALID = 2, | ||
91 | IPL_NSS_VALID = 4, | ||
92 | }; | ||
93 | |||
94 | enum ipl_type { | ||
95 | IPL_TYPE_UNKNOWN = 1, | ||
96 | IPL_TYPE_CCW = 2, | ||
97 | IPL_TYPE_FCP = 4, | ||
98 | IPL_TYPE_FCP_DUMP = 8, | ||
99 | IPL_TYPE_NSS = 16, | ||
100 | }; | ||
101 | |||
102 | struct ipl_info | ||
103 | { | ||
104 | enum ipl_type type; | ||
105 | union { | ||
106 | struct { | ||
107 | struct ccw_dev_id dev_id; | ||
108 | } ccw; | ||
109 | struct { | ||
110 | struct ccw_dev_id dev_id; | ||
111 | u64 wwpn; | ||
112 | u64 lun; | ||
113 | } fcp; | ||
114 | struct { | ||
115 | char name[NSS_NAME_SIZE + 1]; | ||
116 | } nss; | ||
117 | } data; | ||
118 | }; | ||
119 | |||
120 | extern struct ipl_info ipl_info; | ||
121 | extern void setup_ipl_info(void); | ||
122 | |||
123 | /* | ||
124 | * DIAG 308 support | ||
125 | */ | ||
126 | enum diag308_subcode { | ||
127 | DIAG308_REL_HSA = 2, | ||
128 | DIAG308_IPL = 3, | ||
129 | DIAG308_DUMP = 4, | ||
130 | DIAG308_SET = 5, | ||
131 | DIAG308_STORE = 6, | ||
132 | }; | ||
133 | |||
134 | enum diag308_ipl_type { | ||
135 | DIAG308_IPL_TYPE_FCP = 0, | ||
136 | DIAG308_IPL_TYPE_CCW = 2, | ||
137 | }; | ||
138 | |||
139 | enum diag308_opt { | ||
140 | DIAG308_IPL_OPT_IPL = 0x10, | ||
141 | DIAG308_IPL_OPT_DUMP = 0x20, | ||
142 | }; | ||
143 | |||
144 | enum diag308_rc { | ||
145 | DIAG308_RC_OK = 1, | ||
146 | }; | ||
147 | |||
148 | extern int diag308(unsigned long subcode, void *addr); | ||
149 | |||
150 | #endif /* _ASM_S390_IPL_H */ | ||