123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159 |
- /* SPDX-License-Identifier: GPL-2.0 */
- /*
- * s390 (re)ipl support
- *
- * Copyright IBM Corp. 2007
- */
- #ifndef _ASM_S390_IPL_H
- #define _ASM_S390_IPL_H
- #include <asm/lowcore.h>
- #include <asm/types.h>
- #include <asm/cio.h>
- #include <asm/setup.h>
- #include <asm/page.h>
- #include <uapi/asm/ipl.h>
- struct ipl_parameter_block {
- struct ipl_pl_hdr hdr;
- union {
- struct ipl_pb_hdr pb0_hdr;
- struct ipl_pb0_common common;
- struct ipl_pb0_fcp fcp;
- struct ipl_pb0_ccw ccw;
- struct ipl_pb0_nvme nvme;
- char raw[PAGE_SIZE - sizeof(struct ipl_pl_hdr)];
- };
- } __packed __aligned(PAGE_SIZE);
- #define NSS_NAME_SIZE 8
- #define IPL_BP_FCP_LEN (sizeof(struct ipl_pl_hdr) + \
- sizeof(struct ipl_pb0_fcp))
- #define IPL_BP0_FCP_LEN (sizeof(struct ipl_pb0_fcp))
- #define IPL_BP_NVME_LEN (sizeof(struct ipl_pl_hdr) + \
- sizeof(struct ipl_pb0_nvme))
- #define IPL_BP0_NVME_LEN (sizeof(struct ipl_pb0_nvme))
- #define IPL_BP_CCW_LEN (sizeof(struct ipl_pl_hdr) + \
- sizeof(struct ipl_pb0_ccw))
- #define IPL_BP0_CCW_LEN (sizeof(struct ipl_pb0_ccw))
- #define IPL_MAX_SUPPORTED_VERSION (0)
- #define IPL_RB_CERT_UNKNOWN ((unsigned short)-1)
- #define DIAG308_VMPARM_SIZE (64)
- #define DIAG308_SCPDATA_OFFSET offsetof(struct ipl_parameter_block, \
- fcp.scp_data)
- #define DIAG308_SCPDATA_SIZE (PAGE_SIZE - DIAG308_SCPDATA_OFFSET)
- struct save_area;
- struct save_area * __init save_area_alloc(bool is_boot_cpu);
- struct save_area * __init save_area_boot_cpu(void);
- void __init save_area_add_regs(struct save_area *, void *regs);
- void __init save_area_add_vxrs(struct save_area *, __vector128 *vxrs);
- extern void s390_reset_system(void);
- extern size_t ipl_block_get_ascii_vmparm(char *dest, size_t size,
- const struct ipl_parameter_block *ipb);
- enum ipl_type {
- IPL_TYPE_UNKNOWN = 1,
- IPL_TYPE_CCW = 2,
- IPL_TYPE_FCP = 4,
- IPL_TYPE_FCP_DUMP = 8,
- IPL_TYPE_NSS = 16,
- IPL_TYPE_NVME = 32,
- IPL_TYPE_NVME_DUMP = 64,
- };
- struct ipl_info
- {
- enum ipl_type type;
- union {
- struct {
- struct ccw_dev_id dev_id;
- } ccw;
- struct {
- struct ccw_dev_id dev_id;
- u64 wwpn;
- u64 lun;
- } fcp;
- struct {
- u32 fid;
- u32 nsid;
- } nvme;
- struct {
- char name[NSS_NAME_SIZE + 1];
- } nss;
- } data;
- };
- extern struct ipl_info ipl_info;
- extern void setup_ipl(void);
- extern void set_os_info_reipl_block(void);
- static inline bool is_ipl_type_dump(void)
- {
- return (ipl_info.type == IPL_TYPE_FCP_DUMP) ||
- (ipl_info.type == IPL_TYPE_NVME_DUMP);
- }
- struct ipl_report {
- struct ipl_parameter_block *ipib;
- struct list_head components;
- struct list_head certificates;
- size_t size;
- };
- struct ipl_report_component {
- struct list_head list;
- struct ipl_rb_component_entry entry;
- };
- struct ipl_report_certificate {
- struct list_head list;
- struct ipl_rb_certificate_entry entry;
- void *key;
- };
- struct kexec_buf;
- struct ipl_report *ipl_report_init(struct ipl_parameter_block *ipib);
- void *ipl_report_finish(struct ipl_report *report);
- int ipl_report_free(struct ipl_report *report);
- int ipl_report_add_component(struct ipl_report *report, struct kexec_buf *kbuf,
- unsigned char flags, unsigned short cert);
- int ipl_report_add_certificate(struct ipl_report *report, void *key,
- unsigned long addr, unsigned long len);
- /*
- * DIAG 308 support
- */
- enum diag308_subcode {
- DIAG308_CLEAR_RESET = 0,
- DIAG308_LOAD_NORMAL_RESET = 1,
- DIAG308_REL_HSA = 2,
- DIAG308_LOAD_CLEAR = 3,
- DIAG308_LOAD_NORMAL_DUMP = 4,
- DIAG308_SET = 5,
- DIAG308_STORE = 6,
- DIAG308_LOAD_NORMAL = 7,
- };
- enum diag308_subcode_flags {
- DIAG308_FLAG_EI = 1UL << 16,
- };
- enum diag308_rc {
- DIAG308_RC_OK = 0x0001,
- DIAG308_RC_NOCONFIG = 0x0102,
- };
- extern int diag308(unsigned long subcode, void *addr);
- extern void store_status(void (*fn)(void *), void *data);
- extern void lgr_info_log(void);
- #endif /* _ASM_S390_IPL_H */
|