1 /* SPDX-License-Identifier: GPL-2.0 */
5 * Copyright IBM Corp. 2007
8 #ifndef _ASM_S390_IPL_H
9 #define _ASM_S390_IPL_H
11 #include <asm/lowcore.h>
12 #include <asm/types.h>
14 #include <asm/setup.h>
16 #define IPL_PARMBLOCK_ORIGIN 0x2000
18 #define IPL_PARM_BLK_FCP_LEN (sizeof(struct ipl_list_hdr) + \
19 sizeof(struct ipl_block_fcp))
21 #define IPL_PARM_BLK0_FCP_LEN (sizeof(struct ipl_block_fcp) + 16)
23 #define IPL_PARM_BLK_CCW_LEN (sizeof(struct ipl_list_hdr) + \
24 sizeof(struct ipl_block_ccw))
26 #define IPL_PARM_BLK0_CCW_LEN (sizeof(struct ipl_block_ccw) + 16)
28 #define IPL_MAX_SUPPORTED_VERSION (0)
30 #define IPL_PARMBLOCK_START ((struct ipl_parameter_block *) \
32 #define IPL_PARMBLOCK_SIZE (IPL_PARMBLOCK_START->hdr.len)
43 } __attribute__((packed));
45 struct ipl_block_fcp {
60 } __attribute__((packed));
62 #define DIAG308_VMPARM_SIZE 64
63 #define DIAG308_SCPDATA_SIZE (PAGE_SIZE - (sizeof(struct ipl_list_hdr) + \
64 offsetof(struct ipl_block_fcp, scp_data)))
66 struct ipl_block_ccw {
75 u8 vm_parm[DIAG308_VMPARM_SIZE];
77 } __attribute__((packed));
79 struct ipl_parameter_block {
80 struct ipl_list_hdr hdr;
82 struct ipl_block_fcp fcp;
83 struct ipl_block_ccw ccw;
85 } __packed __aligned(PAGE_SIZE);
93 struct save_area * __init save_area_alloc(bool is_boot_cpu);
94 struct save_area * __init save_area_boot_cpu(void);
95 void __init save_area_add_regs(struct save_area *, void *regs);
96 void __init save_area_add_vxrs(struct save_area *, __vector128 *vxrs);
98 extern void do_reipl(void);
99 extern void do_halt(void);
100 extern void do_poff(void);
101 extern void ipl_verify_parameters(void);
102 extern void ipl_update_parameters(void);
103 extern size_t append_ipl_vmparm(char *, size_t);
104 extern size_t append_ipl_scpdata(char *, size_t);
108 IPL_PARMBLOCK_VALID = 2,
113 IPL_TYPE_UNKNOWN = 1,
116 IPL_TYPE_FCP_DUMP = 8,
125 struct ccw_dev_id dev_id;
128 struct ccw_dev_id dev_id;
133 char name[NSS_NAME_SIZE + 1];
138 extern struct ipl_info ipl_info;
139 extern void setup_ipl(void);
144 enum diag308_subcode {
146 DIAG308_LOAD_CLEAR = 3,
147 DIAG308_LOAD_NORMAL_DUMP = 4,
152 enum diag308_ipl_type {
153 DIAG308_IPL_TYPE_FCP = 0,
154 DIAG308_IPL_TYPE_CCW = 2,
158 DIAG308_IPL_OPT_IPL = 0x10,
159 DIAG308_IPL_OPT_DUMP = 0x20,
163 DIAG308_FLAGS_LP_VALID = 0x80,
166 enum diag308_vm_flags {
167 DIAG308_VM_FLAGS_NSS_VALID = 0x80,
168 DIAG308_VM_FLAGS_VP_VALID = 0x40,
172 DIAG308_RC_OK = 0x0001,
173 DIAG308_RC_NOCONFIG = 0x0102,
176 extern int diag308(unsigned long subcode, void *addr);
177 extern void diag308_reset(void);
178 extern void store_status(void (*fn)(void *), void *data);
179 extern void lgr_info_log(void);
181 #endif /* _ASM_S390_IPL_H */