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8#ifndef _ASM_S390_IPL_H
9#define _ASM_S390_IPL_H
10
11#include <asm/lowcore.h>
12#include <asm/types.h>
13#include <asm/cio.h>
14#include <asm/setup.h>
15#include <uapi/asm/ipl.h>
16
17struct ipl_parameter_block {
18 struct ipl_pl_hdr hdr;
19 union {
20 struct ipl_pb_hdr pb0_hdr;
21 struct ipl_pb0_common common;
22 struct ipl_pb0_fcp fcp;
23 struct ipl_pb0_ccw ccw;
24 char raw[PAGE_SIZE - sizeof(struct ipl_pl_hdr)];
25 };
26} __packed __aligned(PAGE_SIZE);
27
28#define NSS_NAME_SIZE 8
29
30#define IPL_BP_FCP_LEN (sizeof(struct ipl_pl_hdr) + \
31 sizeof(struct ipl_pb0_fcp))
32#define IPL_BP0_FCP_LEN (sizeof(struct ipl_pb0_fcp))
33#define IPL_BP_CCW_LEN (sizeof(struct ipl_pl_hdr) + \
34 sizeof(struct ipl_pb0_ccw))
35#define IPL_BP0_CCW_LEN (sizeof(struct ipl_pb0_ccw))
36
37#define IPL_MAX_SUPPORTED_VERSION (0)
38
39#define IPL_RB_CERT_UNKNOWN ((unsigned short)-1)
40
41#define DIAG308_VMPARM_SIZE (64)
42#define DIAG308_SCPDATA_OFFSET offsetof(struct ipl_parameter_block, \
43 fcp.scp_data)
44#define DIAG308_SCPDATA_SIZE (PAGE_SIZE - DIAG308_SCPDATA_OFFSET)
45
46struct save_area;
47struct save_area * __init save_area_alloc(bool is_boot_cpu);
48struct save_area * __init save_area_boot_cpu(void);
49void __init save_area_add_regs(struct save_area *, void *regs);
50void __init save_area_add_vxrs(struct save_area *, __vector128 *vxrs);
51
52extern void s390_reset_system(void);
53extern size_t ipl_block_get_ascii_vmparm(char *dest, size_t size,
54 const struct ipl_parameter_block *ipb);
55
56enum ipl_type {
57 IPL_TYPE_UNKNOWN = 1,
58 IPL_TYPE_CCW = 2,
59 IPL_TYPE_FCP = 4,
60 IPL_TYPE_FCP_DUMP = 8,
61 IPL_TYPE_NSS = 16,
62};
63
64struct ipl_info
65{
66 enum ipl_type type;
67 union {
68 struct {
69 struct ccw_dev_id dev_id;
70 } ccw;
71 struct {
72 struct ccw_dev_id dev_id;
73 u64 wwpn;
74 u64 lun;
75 } fcp;
76 struct {
77 char name[NSS_NAME_SIZE + 1];
78 } nss;
79 } data;
80};
81
82extern struct ipl_info ipl_info;
83extern void setup_ipl(void);
84extern void set_os_info_reipl_block(void);
85
86struct ipl_report {
87 struct ipl_parameter_block *ipib;
88 struct list_head components;
89 struct list_head certificates;
90 size_t size;
91};
92
93struct ipl_report_component {
94 struct list_head list;
95 struct ipl_rb_component_entry entry;
96};
97
98struct ipl_report_certificate {
99 struct list_head list;
100 struct ipl_rb_certificate_entry entry;
101 void *key;
102};
103
104struct kexec_buf;
105struct ipl_report *ipl_report_init(struct ipl_parameter_block *ipib);
106void *ipl_report_finish(struct ipl_report *report);
107int ipl_report_free(struct ipl_report *report);
108int ipl_report_add_component(struct ipl_report *report, struct kexec_buf *kbuf,
109 unsigned char flags, unsigned short cert);
110int ipl_report_add_certificate(struct ipl_report *report, void *key,
111 unsigned long addr, unsigned long len);
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115
116enum diag308_subcode {
117 DIAG308_REL_HSA = 2,
118 DIAG308_LOAD_CLEAR = 3,
119 DIAG308_LOAD_NORMAL_DUMP = 4,
120 DIAG308_SET = 5,
121 DIAG308_STORE = 6,
122};
123
124enum diag308_rc {
125 DIAG308_RC_OK = 0x0001,
126 DIAG308_RC_NOCONFIG = 0x0102,
127};
128
129extern int diag308(unsigned long subcode, void *addr);
130extern void store_status(void (*fn)(void *), void *data);
131extern void lgr_info_log(void);
132
133#endif
134
