diff options
Diffstat (limited to 'arch/s390/include/asm/ipl.h')
| -rw-r--r-- | arch/s390/include/asm/ipl.h | 194 |
1 files changed, 92 insertions, 102 deletions
diff --git a/arch/s390/include/asm/ipl.h b/arch/s390/include/asm/ipl.h index edb5161df7e2..b0d00032479d 100644 --- a/arch/s390/include/asm/ipl.h +++ b/arch/s390/include/asm/ipl.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * s390 (re)ipl support * @@ -11,82 +12,48 @@ #include <asm/types.h> #include <asm/cio.h> #include <asm/setup.h> +#include <asm/page.h> +#include <uapi/asm/ipl.h> -#define IPL_PARMBLOCK_ORIGIN 0x2000 - -#define IPL_PARM_BLK_FCP_LEN (sizeof(struct ipl_list_hdr) + \ - sizeof(struct ipl_block_fcp)) - -#define IPL_PARM_BLK0_FCP_LEN (sizeof(struct ipl_block_fcp) + 16) - -#define IPL_PARM_BLK_CCW_LEN (sizeof(struct ipl_list_hdr) + \ - sizeof(struct ipl_block_ccw)) - -#define IPL_PARM_BLK0_CCW_LEN (sizeof(struct ipl_block_ccw) + 16) +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_eckd eckd; + 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_BP_ECKD_LEN (sizeof(struct ipl_pl_hdr) + \ + sizeof(struct ipl_pb0_eckd)) +#define IPL_BP0_ECKD_LEN (sizeof(struct ipl_pb0_eckd)) #define IPL_MAX_SUPPORTED_VERSION (0) -#define IPL_PARMBLOCK_START ((struct ipl_parameter_block *) \ - IPL_PARMBLOCK_ORIGIN) -#define IPL_PARMBLOCK_SIZE (IPL_PARMBLOCK_START->hdr.len) - -struct ipl_list_hdr { - u32 len; - u8 reserved1[3]; - u8 version; - u32 blk0_len; - u8 pbt; - u8 flags; - u16 reserved2; - u8 loadparm[8]; -} __attribute__((packed)); - -struct ipl_block_fcp { - u8 reserved1[305-1]; - u8 opt; - u8 reserved2[3]; - u16 reserved3; - u16 devno; - u8 reserved4[4]; - u64 wwpn; - u64 lun; - u32 bootprog; - u8 reserved5[12]; - u64 br_lba; - u32 scp_data_len; - u8 reserved6[260]; - u8 scp_data[]; -} __attribute__((packed)); - -#define DIAG308_VMPARM_SIZE 64 -#define DIAG308_SCPDATA_SIZE (PAGE_SIZE - (sizeof(struct ipl_list_hdr) + \ - offsetof(struct ipl_block_fcp, scp_data))) - -struct ipl_block_ccw { - u8 reserved1[84]; - u16 reserved2 : 13; - u8 ssid : 3; - u16 devno; - u8 vm_flags; - u8 reserved3[3]; - u32 vm_parm_len; - u8 nss_name[8]; - u8 vm_parm[DIAG308_VMPARM_SIZE]; - u8 reserved4[8]; -} __attribute__((packed)); +#define IPL_RB_CERT_UNKNOWN ((unsigned short)-1) -struct ipl_parameter_block { - struct ipl_list_hdr hdr; - union { - struct ipl_block_fcp fcp; - struct ipl_block_ccw ccw; - } ipl_info; -} __attribute__((packed,aligned(4096))); - -/* - * IPL validity flags - */ -extern u32 ipl_flags; +#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); @@ -94,19 +61,9 @@ 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 do_reipl(void); -extern void do_halt(void); -extern void do_poff(void); -extern void ipl_verify_parameters(void); -extern void ipl_update_parameters(void); -extern size_t append_ipl_vmparm(char *, size_t); -extern size_t append_ipl_scpdata(char *, size_t); - -enum { - IPL_DEVNO_VALID = 1, - IPL_PARMBLOCK_VALID = 2, - IPL_NSS_VALID = 4, -}; +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, @@ -114,6 +71,10 @@ enum ipl_type { IPL_TYPE_FCP = 4, IPL_TYPE_FCP_DUMP = 8, IPL_TYPE_NSS = 16, + IPL_TYPE_NVME = 32, + IPL_TYPE_NVME_DUMP = 64, + IPL_TYPE_ECKD = 128, + IPL_TYPE_ECKD_DUMP = 256, }; struct ipl_info @@ -125,10 +86,17 @@ struct ipl_info } ccw; struct { struct ccw_dev_id dev_id; + } eckd; + 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; @@ -136,35 +104,58 @@ struct ipl_info 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_ECKD_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_ipl_type { - DIAG308_IPL_TYPE_FCP = 0, - DIAG308_IPL_TYPE_CCW = 2, -}; - -enum diag308_opt { - DIAG308_IPL_OPT_IPL = 0x10, - DIAG308_IPL_OPT_DUMP = 0x20, -}; - -enum diag308_flags { - DIAG308_FLAGS_LP_VALID = 0x80, -}; - -enum diag308_vm_flags { - DIAG308_VM_FLAGS_NSS_VALID = 0x80, - DIAG308_VM_FLAGS_VP_VALID = 0x40, +enum diag308_subcode_flags { + DIAG308_FLAG_EI = 1UL << 16, }; enum diag308_rc { @@ -173,7 +164,6 @@ enum diag308_rc { }; extern int diag308(unsigned long subcode, void *addr); -extern void diag308_reset(void); extern void store_status(void (*fn)(void *), void *data); extern void lgr_info_log(void); |