diff --git a/arch/s390/boot/ipl_parm.c b/arch/s390/boot/ipl_parm.c index 849cf786db91..96777092fb14 100644 --- a/arch/s390/boot/ipl_parm.c +++ b/arch/s390/boot/ipl_parm.c @@ -106,12 +106,12 @@ static void append_ipl_block_parm(void) delim = early_command_line + len; /* '\0' character position */ parm = early_command_line + len + 1; /* append right after '\0' */ - switch (ipl_block.hdr.pbt) { - case DIAG308_IPL_TYPE_CCW: + switch (ipl_block.pb0_hdr.pbt) { + case IPL_PBT_CCW: rc = ipl_block_get_ascii_vmparm( parm, COMMAND_LINE_SIZE - len - 1, &ipl_block); break; - case DIAG308_IPL_TYPE_FCP: + case IPL_PBT_FCP: rc = ipl_block_get_ascii_scpdata( parm, COMMAND_LINE_SIZE - len - 1, &ipl_block); break; @@ -238,8 +238,8 @@ void setup_memory_end(void) { #ifdef CONFIG_CRASH_DUMP if (!OLDMEM_BASE && ipl_block_valid && - ipl_block.hdr.pbt == DIAG308_IPL_TYPE_FCP && - ipl_block.fcp.opt == DIAG308_IPL_OPT_DUMP) { + ipl_block.pb0_hdr.pbt == IPL_PBT_FCP && + ipl_block.fcp.opt == IPL_PB0_FCP_OPT_DUMP) { if (!sclp_early_get_hsa_size(&memory_end) && memory_end) memory_end_set = 1; } diff --git a/arch/s390/include/asm/ipl.h b/arch/s390/include/asm/ipl.h index 3530b613234f..878f6fd5f2e7 100644 --- a/arch/s390/include/asm/ipl.h +++ b/arch/s390/include/asm/ipl.h @@ -12,74 +12,34 @@ #include #include #include +#include -#define NSS_NAME_SIZE 8 +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; + char raw[PAGE_SIZE - sizeof(struct ipl_pl_hdr)]; + }; +} __packed __aligned(PAGE_SIZE); -#define IPL_PARM_BLK_FCP_LEN (sizeof(struct ipl_list_hdr) + \ - sizeof(struct ipl_block_fcp)) +#define NSS_NAME_SIZE 8 -#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) +#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_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) -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)); - -struct ipl_parameter_block { - struct ipl_list_hdr hdr; - union { - struct ipl_block_fcp fcp; - struct ipl_block_ccw ccw; - char raw[PAGE_SIZE - sizeof(struct ipl_list_hdr)]; - }; -} __packed __aligned(PAGE_SIZE); +#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); @@ -132,25 +92,6 @@ enum diag308_subcode { DIAG308_STORE = 6, }; -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_rc { DIAG308_RC_OK = 0x0001, DIAG308_RC_NOCONFIG = 0x0102, diff --git a/arch/s390/include/uapi/asm/ipl.h b/arch/s390/include/uapi/asm/ipl.h new file mode 100644 index 000000000000..3b513b39fca0 --- /dev/null +++ b/arch/s390/include/uapi/asm/ipl.h @@ -0,0 +1,94 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef _ASM_S390_UAPI_IPL_H +#define _ASM_S390_UAPI_IPL_H + +#include + +/* IPL Parameter List header */ +struct ipl_pl_hdr { + __u32 len; + __u8 reserved1[3]; + __u8 version; +} __packed; + +/* IPL Parameter Block header */ +struct ipl_pb_hdr { + __u32 len; + __u8 pbt; +} __packed; + +/* IPL Parameter Block types */ +enum ipl_pbt { + IPL_PBT_FCP = 0, + IPL_PBT_SCP_DATA = 1, + IPL_PBT_CCW = 2, +}; + +/* IPL Parameter Block 0 with common fields */ +struct ipl_pb0_common { + __u32 len; + __u8 pbt; + __u8 flags; + __u8 reserved1[2]; + __u8 loadparm[8]; + __u8 reserved2[84]; +} __packed; + +#define IPL_PB0_FLAG_LOADPARM 0x80 + +/* IPL Parameter Block 0 for FCP */ +struct ipl_pb0_fcp { + __u32 len; + __u8 pbt; + __u8 reserved1[3]; + __u8 loadparm[8]; + __u8 reserved2[304]; + __u8 opt; + __u8 reserved3[3]; + __u8 cssid; + __u8 reserved4[1]; + __u16 devno; + __u8 reserved5[4]; + __u64 wwpn; + __u64 lun; + __u32 bootprog; + __u8 reserved6[12]; + __u64 br_lba; + __u32 scp_data_len; + __u8 reserved7[260]; + __u8 scp_data[]; +} __packed; + +#define IPL_PB0_FCP_OPT_IPL 0x10 +#define IPL_PB0_FCP_OPT_DUMP 0x20 + +/* IPL Parameter Block 0 for CCW */ +struct ipl_pb0_ccw { + __u32 len; + __u8 pbt; + __u8 flags; + __u8 reserved1[2]; + __u8 loadparm[8]; + __u8 reserved2[84]; + __u16 reserved3 : 13; + __u8 ssid : 3; + __u16 devno; + __u8 vm_flags; + __u8 reserved4[3]; + __u32 vm_parm_len; + __u8 nss_name[8]; + __u8 vm_parm[64]; + __u8 reserved5[8]; +} __packed; + +#define IPL_PB0_CCW_VM_FLAG_NSS 0x80 +#define IPL_PB0_CCW_VM_FLAG_VP 0x40 + +/* IPL Parameter Block 1 for additional SCP data */ +struct ipl_pb1_scp_data { + __u32 len; + __u8 pbt; + __u8 scp_data[]; +} __packed; + +#endif diff --git a/arch/s390/kernel/ipl.c b/arch/s390/kernel/ipl.c index d452f403a429..f9718bc67cd4 100644 --- a/arch/s390/kernel/ipl.c +++ b/arch/s390/kernel/ipl.c @@ -244,11 +244,11 @@ static __init enum ipl_type get_ipl_type(void) if (!ipl_block_valid) return IPL_TYPE_UNKNOWN; - switch (ipl_block.hdr.pbt) { - case DIAG308_IPL_TYPE_CCW: + switch (ipl_block.pb0_hdr.pbt) { + case IPL_PBT_CCW: return IPL_TYPE_CCW; - case DIAG308_IPL_TYPE_FCP: - if (ipl_block.fcp.opt == DIAG308_IPL_OPT_DUMP) + case IPL_PBT_FCP: + if (ipl_block.fcp.opt == IPL_PB0_FCP_OPT_DUMP) return IPL_TYPE_FCP_DUMP; else return IPL_TYPE_FCP; @@ -272,7 +272,7 @@ static ssize_t ipl_vm_parm_show(struct kobject *kobj, { char parm[DIAG308_VMPARM_SIZE + 1] = {}; - if (ipl_block_valid && (ipl_block.hdr.pbt == DIAG308_IPL_TYPE_CCW)) + if (ipl_block_valid && (ipl_block.pb0_hdr.pbt == IPL_PBT_CCW)) ipl_block_get_ascii_vmparm(parm, sizeof(parm), &ipl_block); return sprintf(page, "%s\n", parm); } @@ -495,11 +495,11 @@ static ssize_t reipl_generic_vmparm_store(struct ipl_parameter_block *ipb, memset(ipb->ccw.vm_parm, 0, DIAG308_VMPARM_SIZE); ipb->ccw.vm_parm_len = ip_len; if (ip_len > 0) { - ipb->ccw.vm_flags |= DIAG308_VM_FLAGS_VP_VALID; + ipb->ccw.vm_flags |= IPL_PB0_CCW_VM_FLAG_VP; memcpy(ipb->ccw.vm_parm, buf, ip_len); ASCEBC(ipb->ccw.vm_parm, ip_len); } else { - ipb->ccw.vm_flags &= ~DIAG308_VM_FLAGS_VP_VALID; + ipb->ccw.vm_flags &= ~IPL_PB0_CCW_VM_FLAG_VP; } return len; @@ -571,9 +571,9 @@ static ssize_t reipl_fcp_scpdata_write(struct file *filp, struct kobject *kobj, scpdata_len += padding; } + reipl_block_fcp->hdr.len = IPL_BP_FCP_LEN + scpdata_len; + reipl_block_fcp->fcp.len = IPL_BP0_FCP_LEN + scpdata_len; reipl_block_fcp->fcp.scp_data_len = scpdata_len; - reipl_block_fcp->hdr.len = IPL_PARM_BLK_FCP_LEN + scpdata_len; - reipl_block_fcp->hdr.blk0_len = IPL_PARM_BLK0_FCP_LEN + scpdata_len; return count; } @@ -600,7 +600,7 @@ DEFINE_IPL_ATTR_RW(reipl_fcp, device, "0.0.%04llx\n", "0.0.%llx\n", static void reipl_get_ascii_loadparm(char *loadparm, struct ipl_parameter_block *ibp) { - memcpy(loadparm, ibp->hdr.loadparm, LOADPARM_LEN); + memcpy(loadparm, ibp->common.loadparm, LOADPARM_LEN); EBCASC(loadparm, LOADPARM_LEN); loadparm[LOADPARM_LEN] = 0; strim(loadparm); @@ -635,11 +635,11 @@ static ssize_t reipl_generic_loadparm_store(struct ipl_parameter_block *ipb, return -EINVAL; } /* initialize loadparm with blanks */ - memset(ipb->hdr.loadparm, ' ', LOADPARM_LEN); + memset(ipb->common.loadparm, ' ', LOADPARM_LEN); /* copy and convert to ebcdic */ - memcpy(ipb->hdr.loadparm, buf, lp_len); - ASCEBC(ipb->hdr.loadparm, LOADPARM_LEN); - ipb->hdr.flags |= DIAG308_FLAGS_LP_VALID; + memcpy(ipb->common.loadparm, buf, lp_len); + ASCEBC(ipb->common.loadparm, LOADPARM_LEN); + ipb->common.flags |= IPL_PB0_FLAG_LOADPARM; return len; } @@ -769,14 +769,12 @@ static ssize_t reipl_nss_name_store(struct kobject *kobj, memset(reipl_block_nss->ccw.nss_name, 0x40, NSS_NAME_SIZE); if (nss_len > 0) { - reipl_block_nss->ccw.vm_flags |= - DIAG308_VM_FLAGS_NSS_VALID; + reipl_block_nss->ccw.vm_flags |= IPL_PB0_CCW_VM_FLAG_NSS; memcpy(reipl_block_nss->ccw.nss_name, buf, nss_len); ASCEBC(reipl_block_nss->ccw.nss_name, nss_len); EBC_TOUPPER(reipl_block_nss->ccw.nss_name, nss_len); } else { - reipl_block_nss->ccw.vm_flags &= - ~DIAG308_VM_FLAGS_NSS_VALID; + reipl_block_nss->ccw.vm_flags &= ~IPL_PB0_CCW_VM_FLAG_NSS; } return len; @@ -896,10 +894,10 @@ static void reipl_run(struct shutdown_trigger *trigger) static void reipl_block_ccw_init(struct ipl_parameter_block *ipb) { - ipb->hdr.len = IPL_PARM_BLK_CCW_LEN; + ipb->hdr.len = IPL_BP_CCW_LEN; ipb->hdr.version = IPL_PARM_BLOCK_VERSION; - ipb->hdr.blk0_len = IPL_PARM_BLK0_CCW_LEN; - ipb->hdr.pbt = DIAG308_IPL_TYPE_CCW; + ipb->pb0_hdr.len = IPL_BP0_CCW_LEN; + ipb->pb0_hdr.pbt = IPL_PBT_CCW; } static void reipl_block_ccw_fill_parms(struct ipl_parameter_block *ipb) @@ -907,17 +905,17 @@ static void reipl_block_ccw_fill_parms(struct ipl_parameter_block *ipb) /* LOADPARM */ /* check if read scp info worked and set loadparm */ if (sclp_ipl_info.is_valid) - memcpy(ipb->hdr.loadparm, &sclp_ipl_info.loadparm, LOADPARM_LEN); + memcpy(ipb->ccw.loadparm, &sclp_ipl_info.loadparm, LOADPARM_LEN); else /* read scp info failed: set empty loadparm (EBCDIC blanks) */ - memset(ipb->hdr.loadparm, 0x40, LOADPARM_LEN); - ipb->hdr.flags = DIAG308_FLAGS_LP_VALID; + memset(ipb->ccw.loadparm, 0x40, LOADPARM_LEN); + ipb->ccw.flags = IPL_PB0_FLAG_LOADPARM; /* VM PARM */ if (MACHINE_IS_VM && ipl_block_valid && - (ipl_block.ccw.vm_flags & DIAG308_VM_FLAGS_VP_VALID)) { + (ipl_block.ccw.vm_flags & IPL_PB0_CCW_VM_FLAG_VP)) { - ipb->ccw.vm_flags |= DIAG308_VM_FLAGS_VP_VALID; + ipb->ccw.vm_flags |= IPL_PB0_CCW_VM_FLAG_VP; ipb->ccw.vm_parm_len = ipl_block.ccw.vm_parm_len; memcpy(ipb->ccw.vm_parm, ipl_block.ccw.vm_parm, DIAG308_VMPARM_SIZE); @@ -999,14 +997,14 @@ static int __init reipl_fcp_init(void) * is invalid in the SCSI IPL parameter block, so take it * always from sclp_ipl_info. */ - memcpy(reipl_block_fcp->hdr.loadparm, sclp_ipl_info.loadparm, + memcpy(reipl_block_fcp->fcp.loadparm, sclp_ipl_info.loadparm, LOADPARM_LEN); } else { - reipl_block_fcp->hdr.len = IPL_PARM_BLK_FCP_LEN; + reipl_block_fcp->hdr.len = IPL_BP_FCP_LEN; reipl_block_fcp->hdr.version = IPL_PARM_BLOCK_VERSION; - reipl_block_fcp->hdr.blk0_len = IPL_PARM_BLK0_FCP_LEN; - reipl_block_fcp->hdr.pbt = DIAG308_IPL_TYPE_FCP; - reipl_block_fcp->fcp.opt = DIAG308_IPL_OPT_IPL; + reipl_block_fcp->fcp.len = IPL_BP0_FCP_LEN; + reipl_block_fcp->fcp.pbt = IPL_PBT_FCP; + reipl_block_fcp->fcp.opt = IPL_PB0_FCP_OPT_IPL; } reipl_capabilities |= IPL_TYPE_FCP; return 0; @@ -1024,10 +1022,10 @@ static int __init reipl_type_init(void) /* * If we have an OS info reipl block, this will be used */ - if (reipl_block->hdr.pbt == DIAG308_IPL_TYPE_FCP) { + if (reipl_block->pb0_hdr.pbt == IPL_PBT_FCP) { memcpy(reipl_block_fcp, reipl_block, size); reipl_type = IPL_TYPE_FCP; - } else if (reipl_block->hdr.pbt == DIAG308_IPL_TYPE_CCW) { + } else if (reipl_block->pb0_hdr.pbt == IPL_PBT_CCW) { memcpy(reipl_block_ccw, reipl_block, size); reipl_type = IPL_TYPE_CCW; } @@ -1191,10 +1189,10 @@ static int __init dump_ccw_init(void) free_page((unsigned long)dump_block_ccw); return rc; } - dump_block_ccw->hdr.len = IPL_PARM_BLK_CCW_LEN; + dump_block_ccw->hdr.len = IPL_BP_CCW_LEN; dump_block_ccw->hdr.version = IPL_PARM_BLOCK_VERSION; - dump_block_ccw->hdr.blk0_len = IPL_PARM_BLK0_CCW_LEN; - dump_block_ccw->hdr.pbt = DIAG308_IPL_TYPE_CCW; + dump_block_ccw->ccw.len = IPL_BP0_CCW_LEN; + dump_block_ccw->ccw.pbt = IPL_PBT_CCW; dump_capabilities |= DUMP_TYPE_CCW; return 0; } @@ -1213,11 +1211,11 @@ static int __init dump_fcp_init(void) free_page((unsigned long)dump_block_fcp); return rc; } - dump_block_fcp->hdr.len = IPL_PARM_BLK_FCP_LEN; + dump_block_fcp->hdr.len = IPL_BP_FCP_LEN; dump_block_fcp->hdr.version = IPL_PARM_BLOCK_VERSION; - dump_block_fcp->hdr.blk0_len = IPL_PARM_BLK0_FCP_LEN; - dump_block_fcp->hdr.pbt = DIAG308_IPL_TYPE_FCP; - dump_block_fcp->fcp.opt = DIAG308_IPL_OPT_DUMP; + dump_block_fcp->fcp.len = IPL_BP0_FCP_LEN; + dump_block_fcp->fcp.pbt = IPL_PBT_FCP; + dump_block_fcp->fcp.opt = IPL_PB0_FCP_OPT_DUMP; dump_capabilities |= DUMP_TYPE_FCP; return 0; } @@ -1576,7 +1574,7 @@ static int __init s390_ipl_init(void) * READ SCP info provides the correct value. */ if (memcmp(sclp_ipl_info.loadparm, str, sizeof(str)) == 0 && ipl_block_valid) - memcpy(sclp_ipl_info.loadparm, ipl_block.hdr.loadparm, LOADPARM_LEN); + memcpy(sclp_ipl_info.loadparm, ipl_block.ccw.loadparm, LOADPARM_LEN); shutdown_actions_init(); shutdown_triggers_init(); return 0; diff --git a/arch/s390/kernel/ipl_vmparm.c b/arch/s390/kernel/ipl_vmparm.c index 41613c1617ff..af43535a976d 100644 --- a/arch/s390/kernel/ipl_vmparm.c +++ b/arch/s390/kernel/ipl_vmparm.c @@ -11,7 +11,7 @@ size_t ipl_block_get_ascii_vmparm(char *dest, size_t size, char has_lowercase = 0; len = 0; - if ((ipb->ccw.vm_flags & DIAG308_VM_FLAGS_VP_VALID) && + if ((ipb->ccw.vm_flags & IPL_PB0_CCW_VM_FLAG_VP) && (ipb->ccw.vm_parm_len > 0)) { len = min_t(size_t, size - 1, ipb->ccw.vm_parm_len);