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