diff options
Diffstat (limited to 'arch/s390/kernel/ipl.c')
| -rw-r--r-- | arch/s390/kernel/ipl.c | 1772 |
1 files changed, 1103 insertions, 669 deletions
diff --git a/arch/s390/kernel/ipl.c b/arch/s390/kernel/ipl.c index 8e622bb52f7a..961a3d60a4dd 100644 --- a/arch/s390/kernel/ipl.c +++ b/arch/s390/kernel/ipl.c @@ -1,9 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0 /* * ipl/reipl/dump support for Linux on s390. * * Copyright IBM Corp. 2005, 2012 * Author(s): Michael Holzheu <holzheu@de.ibm.com> - * Heiko Carstens <heiko.carstens@de.ibm.com> * Volker Sameske <sameske@de.ibm.com> */ @@ -12,36 +12,48 @@ #include <linux/init.h> #include <linux/device.h> #include <linux/delay.h> +#include <linux/kstrtox.h> +#include <linux/panic_notifier.h> #include <linux/reboot.h> #include <linux/ctype.h> #include <linux/fs.h> #include <linux/gfp.h> #include <linux/crash_dump.h> #include <linux/debug_locks.h> +#include <linux/vmalloc.h> +#include <asm/asm-extable.h> +#include <asm/machine.h> #include <asm/diag.h> #include <asm/ipl.h> #include <asm/smp.h> #include <asm/setup.h> #include <asm/cpcmd.h> -#include <asm/cio.h> #include <asm/ebcdic.h> -#include <asm/reset.h> #include <asm/sclp.h> #include <asm/checksum.h> #include <asm/debug.h> +#include <asm/abs_lowcore.h> #include <asm/os_info.h> +#include <asm/sections.h> +#include <asm/boot_data.h> #include "entry.h" #define IPL_PARM_BLOCK_VERSION 0 #define IPL_UNKNOWN_STR "unknown" #define IPL_CCW_STR "ccw" +#define IPL_ECKD_STR "eckd" +#define IPL_ECKD_DUMP_STR "eckd_dump" #define IPL_FCP_STR "fcp" #define IPL_FCP_DUMP_STR "fcp_dump" +#define IPL_NVME_STR "nvme" +#define IPL_NVME_DUMP_STR "nvme_dump" #define IPL_NSS_STR "nss" #define DUMP_CCW_STR "ccw" +#define DUMP_ECKD_STR "eckd" #define DUMP_FCP_STR "fcp" +#define DUMP_NVME_STR "nvme" #define DUMP_NONE_STR "none" /* @@ -86,12 +98,20 @@ static char *ipl_type_str(enum ipl_type type) switch (type) { case IPL_TYPE_CCW: return IPL_CCW_STR; + case IPL_TYPE_ECKD: + return IPL_ECKD_STR; + case IPL_TYPE_ECKD_DUMP: + return IPL_ECKD_DUMP_STR; case IPL_TYPE_FCP: return IPL_FCP_STR; case IPL_TYPE_FCP_DUMP: return IPL_FCP_DUMP_STR; case IPL_TYPE_NSS: return IPL_NSS_STR; + case IPL_TYPE_NVME: + return IPL_NVME_STR; + case IPL_TYPE_NVME_DUMP: + return IPL_NVME_DUMP_STR; case IPL_TYPE_UNKNOWN: default: return IPL_UNKNOWN_STR; @@ -102,6 +122,8 @@ enum dump_type { DUMP_TYPE_NONE = 1, DUMP_TYPE_CCW = 2, DUMP_TYPE_FCP = 4, + DUMP_TYPE_NVME = 8, + DUMP_TYPE_ECKD = 16, }; static char *dump_type_str(enum dump_type type) @@ -111,81 +133,73 @@ static char *dump_type_str(enum dump_type type) return DUMP_NONE_STR; case DUMP_TYPE_CCW: return DUMP_CCW_STR; + case DUMP_TYPE_ECKD: + return DUMP_ECKD_STR; case DUMP_TYPE_FCP: return DUMP_FCP_STR; + case DUMP_TYPE_NVME: + return DUMP_NVME_STR; default: return NULL; } } -/* - * Must be in data section since the bss section - * is not cleared when these are accessed. - */ -static u8 ipl_ssid __section(.data) = 0; -static u16 ipl_devno __section(.data) = 0; -u32 ipl_flags __section(.data) = 0; - -enum ipl_method { - REIPL_METHOD_CCW_CIO, - REIPL_METHOD_CCW_DIAG, - REIPL_METHOD_CCW_VM, - REIPL_METHOD_FCP_RO_DIAG, - REIPL_METHOD_FCP_RW_DIAG, - REIPL_METHOD_FCP_RO_VM, - REIPL_METHOD_FCP_DUMP, - REIPL_METHOD_NSS, - REIPL_METHOD_NSS_DIAG, - REIPL_METHOD_DEFAULT, -}; +int __bootdata_preserved(ipl_block_valid); +struct ipl_parameter_block __bootdata_preserved(ipl_block); +int __bootdata_preserved(ipl_secure_flag); -enum dump_method { - DUMP_METHOD_NONE, - DUMP_METHOD_CCW_CIO, - DUMP_METHOD_CCW_DIAG, - DUMP_METHOD_CCW_VM, - DUMP_METHOD_FCP_DIAG, -}; +unsigned long __bootdata_preserved(ipl_cert_list_addr); +unsigned long __bootdata_preserved(ipl_cert_list_size); -static int diag308_set_works = 0; - -static struct ipl_parameter_block ipl_block; +unsigned long __bootdata(early_ipl_comp_list_addr); +unsigned long __bootdata(early_ipl_comp_list_size); static int reipl_capabilities = IPL_TYPE_UNKNOWN; static enum ipl_type reipl_type = IPL_TYPE_UNKNOWN; -static enum ipl_method reipl_method = REIPL_METHOD_DEFAULT; static struct ipl_parameter_block *reipl_block_fcp; +static struct ipl_parameter_block *reipl_block_nvme; static struct ipl_parameter_block *reipl_block_ccw; +static struct ipl_parameter_block *reipl_block_eckd; static struct ipl_parameter_block *reipl_block_nss; static struct ipl_parameter_block *reipl_block_actual; static int dump_capabilities = DUMP_TYPE_NONE; static enum dump_type dump_type = DUMP_TYPE_NONE; -static enum dump_method dump_method = DUMP_METHOD_NONE; static struct ipl_parameter_block *dump_block_fcp; +static struct ipl_parameter_block *dump_block_nvme; static struct ipl_parameter_block *dump_block_ccw; +static struct ipl_parameter_block *dump_block_eckd; static struct sclp_ipl_info sclp_ipl_info; -static inline int __diag308(unsigned long subcode, void *addr) +static bool reipl_nvme_clear; +static bool reipl_fcp_clear; +static bool reipl_ccw_clear; +static bool reipl_eckd_clear; + +static unsigned long os_info_flags; + +static inline int __diag308(unsigned long subcode, unsigned long addr) { - register unsigned long _addr asm("0") = (unsigned long) addr; - register unsigned long _rc asm("1") = 0; + union register_pair r1; - asm volatile( - " diag %0,%2,0x308\n" + r1.even = addr; + r1.odd = 0; + asm_inline volatile( + " diag %[r1],%[subcode],0x308\n" "0: nopr %%r7\n" EX_TABLE(0b,0b) - : "+d" (_addr), "+d" (_rc) - : "d" (subcode) : "cc", "memory"); - return _rc; + : [r1] "+&d" (r1.pair) + : [subcode] "d" (subcode) + : "cc", "memory"); + return r1.odd; } int diag308(unsigned long subcode, void *addr) { diag_stat_inc(DIAG_STAT_X308); - return __diag308(subcode, addr); + return __diag308(subcode, addr ? virt_to_phys(addr) : 0); } EXPORT_SYMBOL_GPL(diag308); @@ -196,7 +210,7 @@ static ssize_t sys_##_prefix##_##_name##_show(struct kobject *kobj, \ struct kobj_attribute *attr, \ char *page) \ { \ - return snprintf(page, PAGE_SIZE, _format, ##args); \ + return sysfs_emit(page, _format, ##args); \ } #define IPL_ATTR_CCW_STORE_FN(_prefix, _name, _ipl_blk) \ @@ -222,14 +236,14 @@ IPL_ATTR_SHOW_FN(_prefix, _name, "0.%x.%04x\n", \ _ipl_blk.ssid, _ipl_blk.devno); \ IPL_ATTR_CCW_STORE_FN(_prefix, _name, _ipl_blk); \ static struct kobj_attribute sys_##_prefix##_##_name##_attr = \ - __ATTR(_name, (S_IRUGO | S_IWUSR), \ + __ATTR(_name, 0644, \ sys_##_prefix##_##_name##_show, \ sys_##_prefix##_##_name##_store) \ #define DEFINE_IPL_ATTR_RO(_prefix, _name, _format, _value) \ IPL_ATTR_SHOW_FN(_prefix, _name, _format, _value) \ static struct kobj_attribute sys_##_prefix##_##_name##_attr = \ - __ATTR(_name, S_IRUGO, sys_##_prefix##_##_name##_show, NULL) + __ATTR(_name, 0444, sys_##_prefix##_##_name##_show, NULL) #define DEFINE_IPL_ATTR_RW(_prefix, _name, _fmt_out, _fmt_in, _value) \ IPL_ATTR_SHOW_FN(_prefix, _name, _fmt_out, (unsigned long long) _value) \ @@ -244,7 +258,7 @@ static ssize_t sys_##_prefix##_##_name##_store(struct kobject *kobj, \ return len; \ } \ static struct kobj_attribute sys_##_prefix##_##_name##_attr = \ - __ATTR(_name,(S_IRUGO | S_IWUSR), \ + __ATTR(_name, 0644, \ sys_##_prefix##_##_name##_show, \ sys_##_prefix##_##_name##_store) @@ -254,22 +268,73 @@ static ssize_t sys_##_prefix##_##_name##_store(struct kobject *kobj, \ struct kobj_attribute *attr, \ const char *buf, size_t len) \ { \ - strncpy(_value, buf, sizeof(_value) - 1); \ + if (len >= sizeof(_value)) \ + return -E2BIG; \ + len = strscpy(_value, buf); \ + if ((ssize_t)len < 0) \ + return len; \ strim(_value); \ return len; \ } \ static struct kobj_attribute sys_##_prefix##_##_name##_attr = \ - __ATTR(_name,(S_IRUGO | S_IWUSR), \ + __ATTR(_name, 0644, \ sys_##_prefix##_##_name##_show, \ sys_##_prefix##_##_name##_store) -static void make_attrs_ro(struct attribute **attrs) -{ - while (*attrs) { - (*attrs)->mode = S_IRUGO; - attrs++; - } -} +#define IPL_ATTR_SCP_DATA_SHOW_FN(_prefix, _ipl_block) \ +static ssize_t sys_##_prefix##_scp_data_show(struct file *filp, \ + struct kobject *kobj, \ + const struct bin_attribute *attr, \ + char *buf, loff_t off, \ + size_t count) \ +{ \ + size_t size = _ipl_block.scp_data_len; \ + void *scp_data = _ipl_block.scp_data; \ + \ + return memory_read_from_buffer(buf, count, &off, \ + scp_data, size); \ +} + +#define IPL_ATTR_SCP_DATA_STORE_FN(_prefix, _ipl_block_hdr, _ipl_block, _ipl_bp_len, _ipl_bp0_len)\ +static ssize_t sys_##_prefix##_scp_data_store(struct file *filp, \ + struct kobject *kobj, \ + const struct bin_attribute *attr, \ + char *buf, loff_t off, \ + size_t count) \ +{ \ + size_t scpdata_len = count; \ + size_t padding; \ + \ + if (off) \ + return -EINVAL; \ + \ + memcpy(_ipl_block.scp_data, buf, count); \ + if (scpdata_len % 8) { \ + padding = 8 - (scpdata_len % 8); \ + memset(_ipl_block.scp_data + scpdata_len, \ + 0, padding); \ + scpdata_len += padding; \ + } \ + \ + _ipl_block_hdr.len = _ipl_bp_len + scpdata_len; \ + _ipl_block.len = _ipl_bp0_len + scpdata_len; \ + _ipl_block.scp_data_len = scpdata_len; \ + \ + return count; \ +} + +#define DEFINE_IPL_ATTR_SCP_DATA_RO(_prefix, _ipl_block, _size) \ +IPL_ATTR_SCP_DATA_SHOW_FN(_prefix, _ipl_block) \ +static const struct bin_attribute sys_##_prefix##_scp_data_attr = \ + __BIN_ATTR(scp_data, 0444, sys_##_prefix##_scp_data_show, \ + NULL, _size) + +#define DEFINE_IPL_ATTR_SCP_DATA_RW(_prefix, _ipl_block_hdr, _ipl_block, _ipl_bp_len, _ipl_bp0_len, _size)\ +IPL_ATTR_SCP_DATA_SHOW_FN(_prefix, _ipl_block) \ +IPL_ATTR_SCP_DATA_STORE_FN(_prefix, _ipl_block_hdr, _ipl_block, _ipl_bp_len, _ipl_bp0_len)\ +static const struct bin_attribute sys_##_prefix##_scp_data_attr = \ + __BIN_ATTR(scp_data, 0644, sys_##_prefix##_scp_data_show, \ + sys_##_prefix##_scp_data_store, _size) /* * ipl section @@ -277,21 +342,29 @@ static void make_attrs_ro(struct attribute **attrs) static __init enum ipl_type get_ipl_type(void) { - struct ipl_parameter_block *ipl = IPL_PARMBLOCK_START; - - if (ipl_flags & IPL_NSS_VALID) - return IPL_TYPE_NSS; - if (!(ipl_flags & IPL_DEVNO_VALID)) + if (!ipl_block_valid) return IPL_TYPE_UNKNOWN; - if (!(ipl_flags & IPL_PARMBLOCK_VALID)) + + switch (ipl_block.pb0_hdr.pbt) { + case IPL_PBT_CCW: return IPL_TYPE_CCW; - if (ipl->hdr.version > IPL_MAX_SUPPORTED_VERSION) - return IPL_TYPE_UNKNOWN; - if (ipl->hdr.pbt != DIAG308_IPL_TYPE_FCP) - return IPL_TYPE_UNKNOWN; - if (ipl->ipl_info.fcp.opt == DIAG308_IPL_OPT_DUMP) - return IPL_TYPE_FCP_DUMP; - return IPL_TYPE_FCP; + case IPL_PBT_FCP: + if (ipl_block.fcp.opt == IPL_PB0_FCP_OPT_DUMP) + return IPL_TYPE_FCP_DUMP; + else + return IPL_TYPE_FCP; + case IPL_PBT_NVME: + if (ipl_block.nvme.opt == IPL_PB0_NVME_OPT_DUMP) + return IPL_TYPE_NVME_DUMP; + else + return IPL_TYPE_NVME; + case IPL_PBT_ECKD: + if (ipl_block.eckd.opt == IPL_PB0_ECKD_OPT_DUMP) + return IPL_TYPE_ECKD_DUMP; + else + return IPL_TYPE_ECKD; + } + return IPL_TYPE_UNKNOWN; } struct ipl_info ipl_info; @@ -300,181 +373,200 @@ EXPORT_SYMBOL_GPL(ipl_info); static ssize_t ipl_type_show(struct kobject *kobj, struct kobj_attribute *attr, char *page) { - return sprintf(page, "%s\n", ipl_type_str(ipl_info.type)); + return sysfs_emit(page, "%s\n", ipl_type_str(ipl_info.type)); } static struct kobj_attribute sys_ipl_type_attr = __ATTR_RO(ipl_type); -/* VM IPL PARM routines */ -static size_t reipl_get_ascii_vmparm(char *dest, size_t size, - const struct ipl_parameter_block *ipb) +static ssize_t ipl_secure_show(struct kobject *kobj, + struct kobj_attribute *attr, char *page) { - int i; - size_t len; - char has_lowercase = 0; - - len = 0; - if ((ipb->ipl_info.ccw.vm_flags & DIAG308_VM_FLAGS_VP_VALID) && - (ipb->ipl_info.ccw.vm_parm_len > 0)) { - - len = min_t(size_t, size - 1, ipb->ipl_info.ccw.vm_parm_len); - memcpy(dest, ipb->ipl_info.ccw.vm_parm, len); - /* If at least one character is lowercase, we assume mixed - * case; otherwise we convert everything to lowercase. - */ - for (i = 0; i < len; i++) - if ((dest[i] > 0x80 && dest[i] < 0x8a) || /* a-i */ - (dest[i] > 0x90 && dest[i] < 0x9a) || /* j-r */ - (dest[i] > 0xa1 && dest[i] < 0xaa)) { /* s-z */ - has_lowercase = 1; - break; - } - if (!has_lowercase) - EBC_TOLOWER(dest, len); - EBCASC(dest, len); - } - dest[len] = 0; - - return len; + return sysfs_emit(page, "%i\n", !!ipl_secure_flag); } -size_t append_ipl_vmparm(char *dest, size_t size) -{ - size_t rc; +static struct kobj_attribute sys_ipl_secure_attr = + __ATTR(secure, 0444, ipl_secure_show, NULL); - rc = 0; - if (diag308_set_works && (ipl_block.hdr.pbt == DIAG308_IPL_TYPE_CCW)) - rc = reipl_get_ascii_vmparm(dest, size, &ipl_block); - else - dest[0] = 0; - return rc; +static ssize_t ipl_has_secure_show(struct kobject *kobj, + struct kobj_attribute *attr, char *page) +{ + return sysfs_emit(page, "%i\n", !!sclp.has_sipl); } +static struct kobj_attribute sys_ipl_has_secure_attr = + __ATTR(has_secure, 0444, ipl_has_secure_show, NULL); + static ssize_t ipl_vm_parm_show(struct kobject *kobj, struct kobj_attribute *attr, char *page) { char parm[DIAG308_VMPARM_SIZE + 1] = {}; - append_ipl_vmparm(parm, sizeof(parm)); - return sprintf(page, "%s\n", parm); -} - -static size_t scpdata_length(const char* buf, size_t count) -{ - while (count) { - if (buf[count - 1] != '\0' && buf[count - 1] != ' ') - break; - count--; - } - return count; -} - -static size_t reipl_append_ascii_scpdata(char *dest, size_t size, - const struct ipl_parameter_block *ipb) -{ - size_t count; - size_t i; - int has_lowercase; - - count = min(size - 1, scpdata_length(ipb->ipl_info.fcp.scp_data, - ipb->ipl_info.fcp.scp_data_len)); - if (!count) - goto out; - - has_lowercase = 0; - for (i = 0; i < count; i++) { - if (!isascii(ipb->ipl_info.fcp.scp_data[i])) { - count = 0; - goto out; - } - if (!has_lowercase && islower(ipb->ipl_info.fcp.scp_data[i])) - has_lowercase = 1; - } - - if (has_lowercase) - memcpy(dest, ipb->ipl_info.fcp.scp_data, count); - else - for (i = 0; i < count; i++) - dest[i] = tolower(ipb->ipl_info.fcp.scp_data[i]); -out: - dest[count] = '\0'; - return count; -} - -size_t append_ipl_scpdata(char *dest, size_t len) -{ - size_t rc; - - rc = 0; - if (ipl_block.hdr.pbt == DIAG308_IPL_TYPE_FCP) - rc = reipl_append_ascii_scpdata(dest, len, &ipl_block); - else - dest[0] = 0; - return rc; + if (ipl_block_valid && (ipl_block.pb0_hdr.pbt == IPL_PBT_CCW)) + ipl_block_get_ascii_vmparm(parm, sizeof(parm), &ipl_block); + return sysfs_emit(page, "%s\n", parm); } - static struct kobj_attribute sys_ipl_vm_parm_attr = - __ATTR(parm, S_IRUGO, ipl_vm_parm_show, NULL); + __ATTR(parm, 0444, ipl_vm_parm_show, NULL); static ssize_t sys_ipl_device_show(struct kobject *kobj, struct kobj_attribute *attr, char *page) { - struct ipl_parameter_block *ipl = IPL_PARMBLOCK_START; - switch (ipl_info.type) { case IPL_TYPE_CCW: - return sprintf(page, "0.%x.%04x\n", ipl_ssid, ipl_devno); + return sysfs_emit(page, "0.%x.%04x\n", ipl_block.ccw.ssid, + ipl_block.ccw.devno); + case IPL_TYPE_ECKD: + case IPL_TYPE_ECKD_DUMP: + return sysfs_emit(page, "0.%x.%04x\n", ipl_block.eckd.ssid, + ipl_block.eckd.devno); case IPL_TYPE_FCP: case IPL_TYPE_FCP_DUMP: - return sprintf(page, "0.0.%04x\n", ipl->ipl_info.fcp.devno); + return sysfs_emit(page, "0.0.%04x\n", ipl_block.fcp.devno); + case IPL_TYPE_NVME: + case IPL_TYPE_NVME_DUMP: + return sysfs_emit(page, "%08ux\n", ipl_block.nvme.fid); default: return 0; } } static struct kobj_attribute sys_ipl_device_attr = - __ATTR(device, S_IRUGO, sys_ipl_device_show, NULL); + __ATTR(device, 0444, sys_ipl_device_show, NULL); -static ssize_t ipl_parameter_read(struct file *filp, struct kobject *kobj, - struct bin_attribute *attr, char *buf, - loff_t off, size_t count) +static ssize_t sys_ipl_parameter_read(struct file *filp, struct kobject *kobj, + const struct bin_attribute *attr, char *buf, + loff_t off, size_t count) { - return memory_read_from_buffer(buf, count, &off, IPL_PARMBLOCK_START, - IPL_PARMBLOCK_SIZE); + return memory_read_from_buffer(buf, count, &off, &ipl_block, + ipl_block.hdr.len); } -static struct bin_attribute ipl_parameter_attr = - __BIN_ATTR(binary_parameter, S_IRUGO, ipl_parameter_read, NULL, +static const struct bin_attribute sys_ipl_parameter_attr = + __BIN_ATTR(binary_parameter, 0444, sys_ipl_parameter_read, NULL, PAGE_SIZE); -static ssize_t ipl_scp_data_read(struct file *filp, struct kobject *kobj, - struct bin_attribute *attr, char *buf, - loff_t off, size_t count) -{ - unsigned int size = IPL_PARMBLOCK_START->ipl_info.fcp.scp_data_len; - void *scp_data = &IPL_PARMBLOCK_START->ipl_info.fcp.scp_data; +DEFINE_IPL_ATTR_SCP_DATA_RO(ipl_fcp, ipl_block.fcp, PAGE_SIZE); - return memory_read_from_buffer(buf, count, &off, scp_data, size); -} -static struct bin_attribute ipl_scp_data_attr = - __BIN_ATTR(scp_data, S_IRUGO, ipl_scp_data_read, NULL, PAGE_SIZE); +static const struct bin_attribute *const ipl_fcp_bin_attrs[] = { + &sys_ipl_parameter_attr, + &sys_ipl_fcp_scp_data_attr, + NULL, +}; + +DEFINE_IPL_ATTR_SCP_DATA_RO(ipl_nvme, ipl_block.nvme, PAGE_SIZE); + +static const struct bin_attribute *const ipl_nvme_bin_attrs[] = { + &sys_ipl_parameter_attr, + &sys_ipl_nvme_scp_data_attr, + NULL, +}; -static struct bin_attribute *ipl_fcp_bin_attrs[] = { - &ipl_parameter_attr, - &ipl_scp_data_attr, +DEFINE_IPL_ATTR_SCP_DATA_RO(ipl_eckd, ipl_block.eckd, PAGE_SIZE); + +static const struct bin_attribute *const ipl_eckd_bin_attrs[] = { + &sys_ipl_parameter_attr, + &sys_ipl_eckd_scp_data_attr, NULL, }; /* FCP ipl device attributes */ -DEFINE_IPL_ATTR_RO(ipl_fcp, wwpn, "0x%016llx\n", (unsigned long long) - IPL_PARMBLOCK_START->ipl_info.fcp.wwpn); -DEFINE_IPL_ATTR_RO(ipl_fcp, lun, "0x%016llx\n", (unsigned long long) - IPL_PARMBLOCK_START->ipl_info.fcp.lun); -DEFINE_IPL_ATTR_RO(ipl_fcp, bootprog, "%lld\n", (unsigned long long) - IPL_PARMBLOCK_START->ipl_info.fcp.bootprog); -DEFINE_IPL_ATTR_RO(ipl_fcp, br_lba, "%lld\n", (unsigned long long) - IPL_PARMBLOCK_START->ipl_info.fcp.br_lba); +DEFINE_IPL_ATTR_RO(ipl_fcp, wwpn, "0x%016llx\n", + (unsigned long long)ipl_block.fcp.wwpn); +DEFINE_IPL_ATTR_RO(ipl_fcp, lun, "0x%016llx\n", + (unsigned long long)ipl_block.fcp.lun); +DEFINE_IPL_ATTR_RO(ipl_fcp, bootprog, "%lld\n", + (unsigned long long)ipl_block.fcp.bootprog); +DEFINE_IPL_ATTR_RO(ipl_fcp, br_lba, "%lld\n", + (unsigned long long)ipl_block.fcp.br_lba); + +/* NVMe ipl device attributes */ +DEFINE_IPL_ATTR_RO(ipl_nvme, fid, "0x%08llx\n", + (unsigned long long)ipl_block.nvme.fid); +DEFINE_IPL_ATTR_RO(ipl_nvme, nsid, "0x%08llx\n", + (unsigned long long)ipl_block.nvme.nsid); +DEFINE_IPL_ATTR_RO(ipl_nvme, bootprog, "%lld\n", + (unsigned long long)ipl_block.nvme.bootprog); +DEFINE_IPL_ATTR_RO(ipl_nvme, br_lba, "%lld\n", + (unsigned long long)ipl_block.nvme.br_lba); + +/* ECKD ipl device attributes */ +DEFINE_IPL_ATTR_RO(ipl_eckd, bootprog, "%lld\n", + (unsigned long long)ipl_block.eckd.bootprog); + +#define IPL_ATTR_BR_CHR_SHOW_FN(_name, _ipb) \ +static ssize_t eckd_##_name##_br_chr_show(struct kobject *kobj, \ + struct kobj_attribute *attr, \ + char *buf) \ +{ \ + struct ipl_pb0_eckd *ipb = &(_ipb); \ + \ + if (!ipb->br_chr.cyl && \ + !ipb->br_chr.head && \ + !ipb->br_chr.record) \ + return sysfs_emit(buf, "auto\n"); \ + \ + return sysfs_emit(buf, "0x%x,0x%x,0x%x\n", \ + ipb->br_chr.cyl, \ + ipb->br_chr.head, \ + ipb->br_chr.record); \ +} + +#define IPL_ATTR_BR_CHR_STORE_FN(_name, _ipb) \ +static ssize_t eckd_##_name##_br_chr_store(struct kobject *kobj, \ + struct kobj_attribute *attr, \ + const char *buf, size_t len) \ +{ \ + struct ipl_pb0_eckd *ipb = &(_ipb); \ + unsigned long args[3] = { 0 }; \ + char *p, *p1, *tmp = NULL; \ + int i, rc; \ + \ + if (!strncmp(buf, "auto", 4)) \ + goto out; \ + \ + tmp = kstrdup(buf, GFP_KERNEL); \ + p = tmp; \ + for (i = 0; i < 3; i++) { \ + p1 = strsep(&p, ", "); \ + if (!p1) { \ + rc = -EINVAL; \ + goto err; \ + } \ + rc = kstrtoul(p1, 0, args + i); \ + if (rc) \ + goto err; \ + } \ + \ + rc = -EINVAL; \ + if (i != 3) \ + goto err; \ + \ + if ((args[0] || args[1]) && !args[2]) \ + goto err; \ + \ + if (args[0] > UINT_MAX || args[1] > 255 || args[2] > 255) \ + goto err; \ + \ +out: \ + ipb->br_chr.cyl = args[0]; \ + ipb->br_chr.head = args[1]; \ + ipb->br_chr.record = args[2]; \ + rc = len; \ +err: \ + kfree(tmp); \ + return rc; \ +} + +IPL_ATTR_BR_CHR_SHOW_FN(ipl, ipl_block.eckd); +static struct kobj_attribute sys_ipl_eckd_br_chr_attr = + __ATTR(br_chr, 0644, eckd_ipl_br_chr_show, NULL); + +IPL_ATTR_BR_CHR_SHOW_FN(reipl, reipl_block_eckd->eckd); +IPL_ATTR_BR_CHR_STORE_FN(reipl, reipl_block_eckd->eckd); + +static struct kobj_attribute sys_reipl_eckd_br_chr_attr = + __ATTR(br_chr, 0644, eckd_reipl_br_chr_show, eckd_reipl_br_chr_store); static ssize_t ipl_ccw_loadparm_show(struct kobject *kobj, struct kobj_attribute *attr, char *page) @@ -482,18 +574,17 @@ static ssize_t ipl_ccw_loadparm_show(struct kobject *kobj, char loadparm[LOADPARM_LEN + 1] = {}; if (!sclp_ipl_info.is_valid) - return sprintf(page, "#unknown#\n"); + return sysfs_emit(page, "#unknown#\n"); memcpy(loadparm, &sclp_ipl_info.loadparm, LOADPARM_LEN); EBCASC(loadparm, LOADPARM_LEN); strim(loadparm); - return sprintf(page, "%s\n", loadparm); + return sysfs_emit(page, "%s\n", loadparm); } static struct kobj_attribute sys_ipl_ccw_loadparm_attr = __ATTR(loadparm, 0444, ipl_ccw_loadparm_show, NULL); static struct attribute *ipl_fcp_attrs[] = { - &sys_ipl_type_attr.attr, &sys_ipl_device_attr.attr, &sys_ipl_fcp_wwpn_attr.attr, &sys_ipl_fcp_lun_attr.attr, @@ -503,15 +594,41 @@ static struct attribute *ipl_fcp_attrs[] = { NULL, }; -static struct attribute_group ipl_fcp_attr_group = { +static const struct attribute_group ipl_fcp_attr_group = { .attrs = ipl_fcp_attrs, .bin_attrs = ipl_fcp_bin_attrs, }; +static struct attribute *ipl_nvme_attrs[] = { + &sys_ipl_nvme_fid_attr.attr, + &sys_ipl_nvme_nsid_attr.attr, + &sys_ipl_nvme_bootprog_attr.attr, + &sys_ipl_nvme_br_lba_attr.attr, + &sys_ipl_ccw_loadparm_attr.attr, + NULL, +}; + +static const struct attribute_group ipl_nvme_attr_group = { + .attrs = ipl_nvme_attrs, + .bin_attrs = ipl_nvme_bin_attrs, +}; + +static struct attribute *ipl_eckd_attrs[] = { + &sys_ipl_eckd_bootprog_attr.attr, + &sys_ipl_eckd_br_chr_attr.attr, + &sys_ipl_ccw_loadparm_attr.attr, + &sys_ipl_device_attr.attr, + NULL, +}; + +static const struct attribute_group ipl_eckd_attr_group = { + .attrs = ipl_eckd_attrs, + .bin_attrs = ipl_eckd_bin_attrs, +}; + /* CCW ipl device attributes */ static struct attribute *ipl_ccw_attrs_vm[] = { - &sys_ipl_type_attr.attr, &sys_ipl_device_attr.attr, &sys_ipl_ccw_loadparm_attr.attr, &sys_ipl_vm_parm_attr.attr, @@ -519,45 +636,28 @@ static struct attribute *ipl_ccw_attrs_vm[] = { }; static struct attribute *ipl_ccw_attrs_lpar[] = { - &sys_ipl_type_attr.attr, &sys_ipl_device_attr.attr, &sys_ipl_ccw_loadparm_attr.attr, NULL, }; -static struct attribute_group ipl_ccw_attr_group_vm = { +static const struct attribute_group ipl_ccw_attr_group_vm = { .attrs = ipl_ccw_attrs_vm, }; -static struct attribute_group ipl_ccw_attr_group_lpar = { +static const struct attribute_group ipl_ccw_attr_group_lpar = { .attrs = ipl_ccw_attrs_lpar }; -/* NSS ipl device attributes */ - -DEFINE_IPL_ATTR_RO(ipl_nss, name, "%s\n", kernel_nss_name); - -static struct attribute *ipl_nss_attrs[] = { +static struct attribute *ipl_common_attrs[] = { &sys_ipl_type_attr.attr, - &sys_ipl_nss_name_attr.attr, - &sys_ipl_ccw_loadparm_attr.attr, - &sys_ipl_vm_parm_attr.attr, + &sys_ipl_secure_attr.attr, + &sys_ipl_has_secure_attr.attr, NULL, }; -static struct attribute_group ipl_nss_attr_group = { - .attrs = ipl_nss_attrs, -}; - -/* UNKNOWN ipl device attributes */ - -static struct attribute *ipl_unknown_attrs[] = { - &sys_ipl_type_attr.attr, - NULL, -}; - -static struct attribute_group ipl_unknown_attr_group = { - .attrs = ipl_unknown_attrs, +static const struct attribute_group ipl_common_attr_group = { + .attrs = ipl_common_attrs, }; static struct kset *ipl_kset; @@ -565,10 +665,6 @@ static struct kset *ipl_kset; static void __ipl_run(void *unused) { diag308(DIAG308_LOAD_CLEAR, NULL); - if (MACHINE_IS_VM) - __cpcmd("IPL", NULL, 0, NULL); - else if (ipl_info.type == IPL_TYPE_CCW) - reipl_ccw_dev(&ipl_info.data.ccw.dev_id); } static void ipl_run(struct shutdown_trigger *trigger) @@ -585,25 +681,31 @@ static int __init ipl_init(void) rc = -ENOMEM; goto out; } + rc = sysfs_create_group(&ipl_kset->kobj, &ipl_common_attr_group); + if (rc) + goto out; switch (ipl_info.type) { case IPL_TYPE_CCW: - if (MACHINE_IS_VM) + if (machine_is_vm()) rc = sysfs_create_group(&ipl_kset->kobj, &ipl_ccw_attr_group_vm); else rc = sysfs_create_group(&ipl_kset->kobj, &ipl_ccw_attr_group_lpar); break; + case IPL_TYPE_ECKD: + case IPL_TYPE_ECKD_DUMP: + rc = sysfs_create_group(&ipl_kset->kobj, &ipl_eckd_attr_group); + break; case IPL_TYPE_FCP: case IPL_TYPE_FCP_DUMP: rc = sysfs_create_group(&ipl_kset->kobj, &ipl_fcp_attr_group); break; - case IPL_TYPE_NSS: - rc = sysfs_create_group(&ipl_kset->kobj, &ipl_nss_attr_group); + case IPL_TYPE_NVME: + case IPL_TYPE_NVME_DUMP: + rc = sysfs_create_group(&ipl_kset->kobj, &ipl_nvme_attr_group); break; default: - rc = sysfs_create_group(&ipl_kset->kobj, - &ipl_unknown_attr_group); break; } out: @@ -629,8 +731,8 @@ static ssize_t reipl_generic_vmparm_show(struct ipl_parameter_block *ipb, { char vmparm[DIAG308_VMPARM_SIZE + 1] = {}; - reipl_get_ascii_vmparm(vmparm, sizeof(vmparm), ipb); - return sprintf(page, "%s\n", vmparm); + ipl_block_get_ascii_vmparm(vmparm, sizeof(vmparm), ipb); + return sysfs_emit(page, "%s\n", vmparm); } static ssize_t reipl_generic_vmparm_store(struct ipl_parameter_block *ipb, @@ -652,14 +754,14 @@ static ssize_t reipl_generic_vmparm_store(struct ipl_parameter_block *ipb, if (!(isalnum(buf[i]) || isascii(buf[i]) || isprint(buf[i]))) return -EINVAL; - memset(ipb->ipl_info.ccw.vm_parm, 0, DIAG308_VMPARM_SIZE); - ipb->ipl_info.ccw.vm_parm_len = ip_len; + memset(ipb->ccw.vm_parm, 0, DIAG308_VMPARM_SIZE); + ipb->ccw.vm_parm_len = ip_len; if (ip_len > 0) { - ipb->ipl_info.ccw.vm_flags |= DIAG308_VM_FLAGS_VP_VALID; - memcpy(ipb->ipl_info.ccw.vm_parm, buf, ip_len); - ASCEBC(ipb->ipl_info.ccw.vm_parm, ip_len); + 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->ipl_info.ccw.vm_flags &= ~DIAG308_VM_FLAGS_VP_VALID; + ipb->ccw.vm_flags &= ~IPL_PB0_CCW_VM_FLAG_VP; } return len; @@ -694,73 +796,39 @@ static ssize_t reipl_ccw_vmparm_store(struct kobject *kobj, } static struct kobj_attribute sys_reipl_nss_vmparm_attr = - __ATTR(parm, S_IRUGO | S_IWUSR, reipl_nss_vmparm_show, - reipl_nss_vmparm_store); + __ATTR(parm, 0644, reipl_nss_vmparm_show, + reipl_nss_vmparm_store); static struct kobj_attribute sys_reipl_ccw_vmparm_attr = - __ATTR(parm, S_IRUGO | S_IWUSR, reipl_ccw_vmparm_show, - reipl_ccw_vmparm_store); + __ATTR(parm, 0644, reipl_ccw_vmparm_show, + reipl_ccw_vmparm_store); /* FCP reipl device attributes */ -static ssize_t reipl_fcp_scpdata_read(struct file *filp, struct kobject *kobj, - struct bin_attribute *attr, - char *buf, loff_t off, size_t count) -{ - size_t size = reipl_block_fcp->ipl_info.fcp.scp_data_len; - void *scp_data = reipl_block_fcp->ipl_info.fcp.scp_data; - - return memory_read_from_buffer(buf, count, &off, scp_data, size); -} - -static ssize_t reipl_fcp_scpdata_write(struct file *filp, struct kobject *kobj, - struct bin_attribute *attr, - char *buf, loff_t off, size_t count) -{ - size_t scpdata_len = count; - size_t padding; - - - if (off) - return -EINVAL; - - memcpy(reipl_block_fcp->ipl_info.fcp.scp_data, buf, count); - if (scpdata_len % 8) { - padding = 8 - (scpdata_len % 8); - memset(reipl_block_fcp->ipl_info.fcp.scp_data + scpdata_len, - 0, padding); - scpdata_len += padding; - } - - reipl_block_fcp->ipl_info.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; +DEFINE_IPL_ATTR_SCP_DATA_RW(reipl_fcp, reipl_block_fcp->hdr, + reipl_block_fcp->fcp, + IPL_BP_FCP_LEN, IPL_BP0_FCP_LEN, + DIAG308_SCPDATA_SIZE); - return count; -} -static struct bin_attribute sys_reipl_fcp_scp_data_attr = - __BIN_ATTR(scp_data, (S_IRUGO | S_IWUSR), reipl_fcp_scpdata_read, - reipl_fcp_scpdata_write, DIAG308_SCPDATA_SIZE); - -static struct bin_attribute *reipl_fcp_bin_attrs[] = { +static const struct bin_attribute *const reipl_fcp_bin_attrs[] = { &sys_reipl_fcp_scp_data_attr, NULL, }; DEFINE_IPL_ATTR_RW(reipl_fcp, wwpn, "0x%016llx\n", "%llx\n", - reipl_block_fcp->ipl_info.fcp.wwpn); + reipl_block_fcp->fcp.wwpn); DEFINE_IPL_ATTR_RW(reipl_fcp, lun, "0x%016llx\n", "%llx\n", - reipl_block_fcp->ipl_info.fcp.lun); + reipl_block_fcp->fcp.lun); DEFINE_IPL_ATTR_RW(reipl_fcp, bootprog, "%lld\n", "%lld\n", - reipl_block_fcp->ipl_info.fcp.bootprog); + reipl_block_fcp->fcp.bootprog); DEFINE_IPL_ATTR_RW(reipl_fcp, br_lba, "%lld\n", "%lld\n", - reipl_block_fcp->ipl_info.fcp.br_lba); + reipl_block_fcp->fcp.br_lba); DEFINE_IPL_ATTR_RW(reipl_fcp, device, "0.0.%04llx\n", "0.0.%llx\n", - reipl_block_fcp->ipl_info.fcp.devno); + reipl_block_fcp->fcp.devno); 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); @@ -772,7 +840,7 @@ static ssize_t reipl_generic_loadparm_show(struct ipl_parameter_block *ipb, char buf[LOADPARM_LEN + 1]; reipl_get_ascii_loadparm(buf, ipb); - return sprintf(page, "%s\n", buf); + return sysfs_emit(page, "%s\n", buf); } static ssize_t reipl_generic_loadparm_store(struct ipl_parameter_block *ipb, @@ -795,31 +863,51 @@ 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); + memcpy(ipb->common.loadparm, buf, lp_len); + ASCEBC(ipb->common.loadparm, LOADPARM_LEN); + ipb->common.flags |= IPL_PB0_FLAG_LOADPARM; return len; } -/* FCP wrapper */ -static ssize_t reipl_fcp_loadparm_show(struct kobject *kobj, - struct kobj_attribute *attr, char *page) +#define DEFINE_GENERIC_LOADPARM(name) \ +static ssize_t reipl_##name##_loadparm_show(struct kobject *kobj, \ + struct kobj_attribute *attr, char *page) \ +{ \ + return reipl_generic_loadparm_show(reipl_block_##name, page); \ +} \ +static ssize_t reipl_##name##_loadparm_store(struct kobject *kobj, \ + struct kobj_attribute *attr, \ + const char *buf, size_t len) \ +{ \ + return reipl_generic_loadparm_store(reipl_block_##name, buf, len); \ +} \ +static struct kobj_attribute sys_reipl_##name##_loadparm_attr = \ + __ATTR(loadparm, 0644, reipl_##name##_loadparm_show, \ + reipl_##name##_loadparm_store) + +DEFINE_GENERIC_LOADPARM(fcp); +DEFINE_GENERIC_LOADPARM(nvme); +DEFINE_GENERIC_LOADPARM(ccw); +DEFINE_GENERIC_LOADPARM(nss); +DEFINE_GENERIC_LOADPARM(eckd); + +static ssize_t reipl_fcp_clear_show(struct kobject *kobj, + struct kobj_attribute *attr, char *page) { - return reipl_generic_loadparm_show(reipl_block_fcp, page); + return sysfs_emit(page, "%u\n", reipl_fcp_clear); } -static ssize_t reipl_fcp_loadparm_store(struct kobject *kobj, - struct kobj_attribute *attr, - const char *buf, size_t len) +static ssize_t reipl_fcp_clear_store(struct kobject *kobj, + struct kobj_attribute *attr, + const char *buf, size_t len) { - return reipl_generic_loadparm_store(reipl_block_fcp, buf, len); + if (kstrtobool(buf, &reipl_fcp_clear) < 0) + return -EINVAL; + return len; } -static struct kobj_attribute sys_reipl_fcp_loadparm_attr = - __ATTR(loadparm, S_IRUGO | S_IWUSR, reipl_fcp_loadparm_show, - reipl_fcp_loadparm_store); - static struct attribute *reipl_fcp_attrs[] = { &sys_reipl_fcp_device_attr.attr, &sys_reipl_fcp_wwpn_attr.attr, @@ -830,56 +918,100 @@ static struct attribute *reipl_fcp_attrs[] = { NULL, }; -static struct attribute_group reipl_fcp_attr_group = { +static const struct attribute_group reipl_fcp_attr_group = { .attrs = reipl_fcp_attrs, .bin_attrs = reipl_fcp_bin_attrs, }; -/* CCW reipl device attributes */ -DEFINE_IPL_CCW_ATTR_RW(reipl_ccw, device, reipl_block_ccw->ipl_info.ccw); +static struct kobj_attribute sys_reipl_fcp_clear_attr = + __ATTR(clear, 0644, reipl_fcp_clear_show, reipl_fcp_clear_store); -/* NSS wrapper */ -static ssize_t reipl_nss_loadparm_show(struct kobject *kobj, - struct kobj_attribute *attr, char *page) +/* NVME reipl device attributes */ + +DEFINE_IPL_ATTR_SCP_DATA_RW(reipl_nvme, reipl_block_nvme->hdr, + reipl_block_nvme->nvme, + IPL_BP_NVME_LEN, IPL_BP0_NVME_LEN, + DIAG308_SCPDATA_SIZE); + +static const struct bin_attribute *const reipl_nvme_bin_attrs[] = { + &sys_reipl_nvme_scp_data_attr, + NULL, +}; + +DEFINE_IPL_ATTR_RW(reipl_nvme, fid, "0x%08llx\n", "%llx\n", + reipl_block_nvme->nvme.fid); +DEFINE_IPL_ATTR_RW(reipl_nvme, nsid, "0x%08llx\n", "%llx\n", + reipl_block_nvme->nvme.nsid); +DEFINE_IPL_ATTR_RW(reipl_nvme, bootprog, "%lld\n", "%lld\n", + reipl_block_nvme->nvme.bootprog); +DEFINE_IPL_ATTR_RW(reipl_nvme, br_lba, "%lld\n", "%lld\n", + reipl_block_nvme->nvme.br_lba); + +static struct attribute *reipl_nvme_attrs[] = { + &sys_reipl_nvme_fid_attr.attr, + &sys_reipl_nvme_nsid_attr.attr, + &sys_reipl_nvme_bootprog_attr.attr, + &sys_reipl_nvme_br_lba_attr.attr, + &sys_reipl_nvme_loadparm_attr.attr, + NULL, +}; + +static const struct attribute_group reipl_nvme_attr_group = { + .attrs = reipl_nvme_attrs, + .bin_attrs = reipl_nvme_bin_attrs +}; + +static ssize_t reipl_nvme_clear_show(struct kobject *kobj, + struct kobj_attribute *attr, char *page) { - return reipl_generic_loadparm_show(reipl_block_nss, page); + return sysfs_emit(page, "%u\n", reipl_nvme_clear); } -static ssize_t reipl_nss_loadparm_store(struct kobject *kobj, - struct kobj_attribute *attr, - const char *buf, size_t len) +static ssize_t reipl_nvme_clear_store(struct kobject *kobj, + struct kobj_attribute *attr, + const char *buf, size_t len) { - return reipl_generic_loadparm_store(reipl_block_nss, buf, len); + if (kstrtobool(buf, &reipl_nvme_clear) < 0) + return -EINVAL; + return len; } -/* CCW wrapper */ -static ssize_t reipl_ccw_loadparm_show(struct kobject *kobj, - struct kobj_attribute *attr, char *page) +static struct kobj_attribute sys_reipl_nvme_clear_attr = + __ATTR(clear, 0644, reipl_nvme_clear_show, reipl_nvme_clear_store); + +/* CCW reipl device attributes */ +DEFINE_IPL_CCW_ATTR_RW(reipl_ccw, device, reipl_block_ccw->ccw); + +static ssize_t reipl_ccw_clear_show(struct kobject *kobj, + struct kobj_attribute *attr, char *page) { - return reipl_generic_loadparm_show(reipl_block_ccw, page); + return sysfs_emit(page, "%u\n", reipl_ccw_clear); } -static ssize_t reipl_ccw_loadparm_store(struct kobject *kobj, - struct kobj_attribute *attr, - const char *buf, size_t len) +static ssize_t reipl_ccw_clear_store(struct kobject *kobj, + struct kobj_attribute *attr, + const char *buf, size_t len) { - return reipl_generic_loadparm_store(reipl_block_ccw, buf, len); + if (kstrtobool(buf, &reipl_ccw_clear) < 0) + return -EINVAL; + return len; } -static struct kobj_attribute sys_reipl_ccw_loadparm_attr = - __ATTR(loadparm, S_IRUGO | S_IWUSR, reipl_ccw_loadparm_show, - reipl_ccw_loadparm_store); +static struct kobj_attribute sys_reipl_ccw_clear_attr = + __ATTR(clear, 0644, reipl_ccw_clear_show, reipl_ccw_clear_store); static struct attribute *reipl_ccw_attrs_vm[] = { &sys_reipl_ccw_device_attr.attr, &sys_reipl_ccw_loadparm_attr.attr, &sys_reipl_ccw_vmparm_attr.attr, + &sys_reipl_ccw_clear_attr.attr, NULL, }; static struct attribute *reipl_ccw_attrs_lpar[] = { &sys_reipl_ccw_device_attr.attr, &sys_reipl_ccw_loadparm_attr.attr, + &sys_reipl_ccw_clear_attr.attr, NULL, }; @@ -893,12 +1025,58 @@ static struct attribute_group reipl_ccw_attr_group_lpar = { .attrs = reipl_ccw_attrs_lpar, }; +/* ECKD reipl device attributes */ + +DEFINE_IPL_ATTR_SCP_DATA_RW(reipl_eckd, reipl_block_eckd->hdr, + reipl_block_eckd->eckd, + IPL_BP_ECKD_LEN, IPL_BP0_ECKD_LEN, + DIAG308_SCPDATA_SIZE); + +static const struct bin_attribute *const reipl_eckd_bin_attrs[] = { + &sys_reipl_eckd_scp_data_attr, + NULL, +}; + +DEFINE_IPL_CCW_ATTR_RW(reipl_eckd, device, reipl_block_eckd->eckd); +DEFINE_IPL_ATTR_RW(reipl_eckd, bootprog, "%lld\n", "%lld\n", + reipl_block_eckd->eckd.bootprog); + +static struct attribute *reipl_eckd_attrs[] = { + &sys_reipl_eckd_device_attr.attr, + &sys_reipl_eckd_bootprog_attr.attr, + &sys_reipl_eckd_br_chr_attr.attr, + &sys_reipl_eckd_loadparm_attr.attr, + NULL, +}; + +static const struct attribute_group reipl_eckd_attr_group = { + .attrs = reipl_eckd_attrs, + .bin_attrs = reipl_eckd_bin_attrs +}; + +static ssize_t reipl_eckd_clear_show(struct kobject *kobj, + struct kobj_attribute *attr, char *page) +{ + return sysfs_emit(page, "%u\n", reipl_eckd_clear); +} + +static ssize_t reipl_eckd_clear_store(struct kobject *kobj, + struct kobj_attribute *attr, + const char *buf, size_t len) +{ + if (kstrtobool(buf, &reipl_eckd_clear) < 0) + return -EINVAL; + return len; +} + +static struct kobj_attribute sys_reipl_eckd_clear_attr = + __ATTR(clear, 0644, reipl_eckd_clear_show, reipl_eckd_clear_store); /* NSS reipl device attributes */ static void reipl_get_ascii_nss_name(char *dst, struct ipl_parameter_block *ipb) { - memcpy(dst, ipb->ipl_info.ccw.nss_name, NSS_NAME_SIZE); + memcpy(dst, ipb->ccw.nss_name, NSS_NAME_SIZE); EBCASC(dst, NSS_NAME_SIZE); dst[NSS_NAME_SIZE] = 0; } @@ -909,7 +1087,7 @@ static ssize_t reipl_nss_name_show(struct kobject *kobj, char nss_name[NSS_NAME_SIZE + 1] = {}; reipl_get_ascii_nss_name(nss_name, reipl_block_nss); - return sprintf(page, "%s\n", nss_name); + return sysfs_emit(page, "%s\n", nss_name); } static ssize_t reipl_nss_name_store(struct kobject *kobj, @@ -926,28 +1104,22 @@ static ssize_t reipl_nss_name_store(struct kobject *kobj, if (nss_len > NSS_NAME_SIZE) return -EINVAL; - memset(reipl_block_nss->ipl_info.ccw.nss_name, 0x40, NSS_NAME_SIZE); + memset(reipl_block_nss->ccw.nss_name, 0x40, NSS_NAME_SIZE); if (nss_len > 0) { - reipl_block_nss->ipl_info.ccw.vm_flags |= - DIAG308_VM_FLAGS_NSS_VALID; - memcpy(reipl_block_nss->ipl_info.ccw.nss_name, buf, nss_len); - ASCEBC(reipl_block_nss->ipl_info.ccw.nss_name, nss_len); - EBC_TOUPPER(reipl_block_nss->ipl_info.ccw.nss_name, nss_len); + 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->ipl_info.ccw.vm_flags &= - ~DIAG308_VM_FLAGS_NSS_VALID; + reipl_block_nss->ccw.vm_flags &= ~IPL_PB0_CCW_VM_FLAG_NSS; } return len; } static struct kobj_attribute sys_reipl_nss_name_attr = - __ATTR(name, S_IRUGO | S_IWUSR, reipl_nss_name_show, - reipl_nss_name_store); - -static struct kobj_attribute sys_reipl_nss_loadparm_attr = - __ATTR(loadparm, S_IRUGO | S_IWUSR, reipl_nss_loadparm_show, - reipl_nss_loadparm_store); + __ATTR(name, 0644, reipl_nss_name_show, + reipl_nss_name_store); static struct attribute *reipl_nss_attrs[] = { &sys_reipl_nss_name_attr.attr, @@ -961,11 +1133,10 @@ static struct attribute_group reipl_nss_attr_group = { .attrs = reipl_nss_attrs, }; -static void set_reipl_block_actual(struct ipl_parameter_block *reipl_block) +void set_os_info_reipl_block(void) { - reipl_block_actual = reipl_block; - os_info_entry_add(OS_INFO_REIPL_BLOCK, reipl_block_actual, - reipl_block->hdr.len); + os_info_entry_add_data(OS_INFO_REIPL_BLOCK, reipl_block_actual, + reipl_block_actual->hdr.len); } /* reipl type */ @@ -977,38 +1148,22 @@ static int reipl_set_type(enum ipl_type type) switch(type) { case IPL_TYPE_CCW: - if (diag308_set_works) - reipl_method = REIPL_METHOD_CCW_DIAG; - else if (MACHINE_IS_VM) - reipl_method = REIPL_METHOD_CCW_VM; - else - reipl_method = REIPL_METHOD_CCW_CIO; - set_reipl_block_actual(reipl_block_ccw); + reipl_block_actual = reipl_block_ccw; + break; + case IPL_TYPE_ECKD: + reipl_block_actual = reipl_block_eckd; break; case IPL_TYPE_FCP: - if (diag308_set_works) - reipl_method = REIPL_METHOD_FCP_RW_DIAG; - else if (MACHINE_IS_VM) - reipl_method = REIPL_METHOD_FCP_RO_VM; - else - reipl_method = REIPL_METHOD_FCP_RO_DIAG; - set_reipl_block_actual(reipl_block_fcp); + reipl_block_actual = reipl_block_fcp; break; - case IPL_TYPE_FCP_DUMP: - reipl_method = REIPL_METHOD_FCP_DUMP; + case IPL_TYPE_NVME: + reipl_block_actual = reipl_block_nvme; break; case IPL_TYPE_NSS: - if (diag308_set_works) - reipl_method = REIPL_METHOD_NSS_DIAG; - else - reipl_method = REIPL_METHOD_NSS; - set_reipl_block_actual(reipl_block_nss); - break; - case IPL_TYPE_UNKNOWN: - reipl_method = REIPL_METHOD_DEFAULT; + reipl_block_actual = reipl_block_nss; break; default: - BUG(); + break; } reipl_type = type; return 0; @@ -1017,7 +1172,7 @@ static int reipl_set_type(enum ipl_type type) static ssize_t reipl_type_show(struct kobject *kobj, struct kobj_attribute *attr, char *page) { - return sprintf(page, "%s\n", ipl_type_str(reipl_type)); + return sysfs_emit(page, "%s\n", ipl_type_str(reipl_type)); } static ssize_t reipl_type_store(struct kobject *kobj, @@ -1028,8 +1183,12 @@ static ssize_t reipl_type_store(struct kobject *kobj, if (strncmp(buf, IPL_CCW_STR, strlen(IPL_CCW_STR)) == 0) rc = reipl_set_type(IPL_TYPE_CCW); + else if (strncmp(buf, IPL_ECKD_STR, strlen(IPL_ECKD_STR)) == 0) + rc = reipl_set_type(IPL_TYPE_ECKD); else if (strncmp(buf, IPL_FCP_STR, strlen(IPL_FCP_STR)) == 0) rc = reipl_set_type(IPL_TYPE_FCP); + else if (strncmp(buf, IPL_NVME_STR, strlen(IPL_NVME_STR)) == 0) + rc = reipl_set_type(IPL_TYPE_NVME); else if (strncmp(buf, IPL_NSS_STR, strlen(IPL_NSS_STR)) == 0) rc = reipl_set_type(IPL_TYPE_NSS); return (rc != 0) ? rc : len; @@ -1040,81 +1199,53 @@ static struct kobj_attribute reipl_type_attr = static struct kset *reipl_kset; static struct kset *reipl_fcp_kset; - -static void get_ipl_string(char *dst, struct ipl_parameter_block *ipb, - const enum ipl_method m) -{ - char loadparm[LOADPARM_LEN + 1] = {}; - char vmparm[DIAG308_VMPARM_SIZE + 1] = {}; - char nss_name[NSS_NAME_SIZE + 1] = {}; - size_t pos = 0; - - reipl_get_ascii_loadparm(loadparm, ipb); - reipl_get_ascii_nss_name(nss_name, ipb); - reipl_get_ascii_vmparm(vmparm, sizeof(vmparm), ipb); - - switch (m) { - case REIPL_METHOD_CCW_VM: - pos = sprintf(dst, "IPL %X CLEAR", ipb->ipl_info.ccw.devno); - break; - case REIPL_METHOD_NSS: - pos = sprintf(dst, "IPL %s", nss_name); - break; - default: - break; - } - if (strlen(loadparm) > 0) - pos += sprintf(dst + pos, " LOADPARM '%s'", loadparm); - if (strlen(vmparm) > 0) - sprintf(dst + pos, " PARM %s", vmparm); -} +static struct kset *reipl_nvme_kset; +static struct kset *reipl_eckd_kset; static void __reipl_run(void *unused) { - struct ccw_dev_id devid; - static char buf[128]; - - switch (reipl_method) { - case REIPL_METHOD_CCW_CIO: - devid.ssid = reipl_block_ccw->ipl_info.ccw.ssid; - devid.devno = reipl_block_ccw->ipl_info.ccw.devno; - reipl_ccw_dev(&devid); - break; - case REIPL_METHOD_CCW_VM: - get_ipl_string(buf, reipl_block_ccw, REIPL_METHOD_CCW_VM); - __cpcmd(buf, NULL, 0, NULL); - break; - case REIPL_METHOD_CCW_DIAG: + switch (reipl_type) { + case IPL_TYPE_CCW: diag308(DIAG308_SET, reipl_block_ccw); - diag308(DIAG308_LOAD_CLEAR, NULL); + if (reipl_ccw_clear) + diag308(DIAG308_LOAD_CLEAR, NULL); + else + diag308(DIAG308_LOAD_NORMAL_DUMP, NULL); break; - case REIPL_METHOD_FCP_RW_DIAG: - diag308(DIAG308_SET, reipl_block_fcp); - diag308(DIAG308_LOAD_CLEAR, NULL); + case IPL_TYPE_ECKD: + diag308(DIAG308_SET, reipl_block_eckd); + if (reipl_eckd_clear) + diag308(DIAG308_LOAD_CLEAR, NULL); + else + diag308(DIAG308_LOAD_NORMAL, NULL); break; - case REIPL_METHOD_FCP_RO_DIAG: - diag308(DIAG308_LOAD_CLEAR, NULL); + case IPL_TYPE_FCP: + diag308(DIAG308_SET, reipl_block_fcp); + if (reipl_fcp_clear) + diag308(DIAG308_LOAD_CLEAR, NULL); + else + diag308(DIAG308_LOAD_NORMAL, NULL); break; - case REIPL_METHOD_FCP_RO_VM: - __cpcmd("IPL", NULL, 0, NULL); + case IPL_TYPE_NVME: + diag308(DIAG308_SET, reipl_block_nvme); + if (reipl_nvme_clear) + diag308(DIAG308_LOAD_CLEAR, NULL); + else + diag308(DIAG308_LOAD_NORMAL, NULL); break; - case REIPL_METHOD_NSS_DIAG: + case IPL_TYPE_NSS: diag308(DIAG308_SET, reipl_block_nss); diag308(DIAG308_LOAD_CLEAR, NULL); break; - case REIPL_METHOD_NSS: - get_ipl_string(buf, reipl_block_nss, REIPL_METHOD_NSS); - __cpcmd(buf, NULL, 0, NULL); - break; - case REIPL_METHOD_DEFAULT: - if (MACHINE_IS_VM) - __cpcmd("IPL", NULL, 0, NULL); + case IPL_TYPE_UNKNOWN: diag308(DIAG308_LOAD_CLEAR, NULL); break; - case REIPL_METHOD_FCP_DUMP: + case IPL_TYPE_FCP_DUMP: + case IPL_TYPE_NVME_DUMP: + case IPL_TYPE_ECKD_DUMP: break; } - disabled_wait((unsigned long) __builtin_return_address(0)); + disabled_wait(); } static void reipl_run(struct shutdown_trigger *trigger) @@ -1124,10 +1255,10 @@ 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) @@ -1135,21 +1266,20 @@ 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 && diag308_set_works && - (ipl_block.ipl_info.ccw.vm_flags & DIAG308_VM_FLAGS_VP_VALID)) { - - ipb->ipl_info.ccw.vm_flags |= DIAG308_VM_FLAGS_VP_VALID; - ipb->ipl_info.ccw.vm_parm_len = - ipl_block.ipl_info.ccw.vm_parm_len; - memcpy(ipb->ipl_info.ccw.vm_parm, - ipl_block.ipl_info.ccw.vm_parm, DIAG308_VMPARM_SIZE); + if (machine_is_vm() && ipl_block_valid && + (ipl_block.ccw.vm_flags & IPL_PB0_CCW_VM_FLAG_VP)) { + + 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); } } @@ -1157,33 +1287,18 @@ static int __init reipl_nss_init(void) { int rc; - if (!MACHINE_IS_VM) + if (!machine_is_vm()) return 0; reipl_block_nss = (void *) get_zeroed_page(GFP_KERNEL); if (!reipl_block_nss) return -ENOMEM; - if (!diag308_set_works) - sys_reipl_nss_vmparm_attr.attr.mode = S_IRUGO; - rc = sysfs_create_group(&reipl_kset->kobj, &reipl_nss_attr_group); if (rc) return rc; reipl_block_ccw_init(reipl_block_nss); - if (ipl_info.type == IPL_TYPE_NSS) { - memset(reipl_block_nss->ipl_info.ccw.nss_name, - ' ', NSS_NAME_SIZE); - memcpy(reipl_block_nss->ipl_info.ccw.nss_name, - kernel_nss_name, strlen(kernel_nss_name)); - ASCEBC(reipl_block_nss->ipl_info.ccw.nss_name, NSS_NAME_SIZE); - reipl_block_nss->ipl_info.ccw.vm_flags |= - DIAG308_VM_FLAGS_NSS_VALID; - - reipl_block_ccw_fill_parms(reipl_block_nss); - } - reipl_capabilities |= IPL_TYPE_NSS; return 0; } @@ -1196,24 +1311,16 @@ static int __init reipl_ccw_init(void) if (!reipl_block_ccw) return -ENOMEM; - if (MACHINE_IS_VM) { - if (!diag308_set_works) - sys_reipl_ccw_vmparm_attr.attr.mode = S_IRUGO; - rc = sysfs_create_group(&reipl_kset->kobj, - &reipl_ccw_attr_group_vm); - } else { - if(!diag308_set_works) - sys_reipl_ccw_loadparm_attr.attr.mode = S_IRUGO; - rc = sysfs_create_group(&reipl_kset->kobj, - &reipl_ccw_attr_group_lpar); - } + rc = sysfs_create_group(&reipl_kset->kobj, + machine_is_vm() ? &reipl_ccw_attr_group_vm + : &reipl_ccw_attr_group_lpar); if (rc) return rc; reipl_block_ccw_init(reipl_block_ccw); if (ipl_info.type == IPL_TYPE_CCW) { - reipl_block_ccw->ipl_info.ccw.ssid = ipl_ssid; - reipl_block_ccw->ipl_info.ccw.devno = ipl_devno; + reipl_block_ccw->ccw.ssid = ipl_block.ccw.ssid; + reipl_block_ccw->ccw.devno = ipl_block.ccw.devno; reipl_block_ccw_fill_parms(reipl_block_ccw); } @@ -1225,14 +1332,6 @@ static int __init reipl_fcp_init(void) { int rc; - if (!diag308_set_works) { - if (ipl_info.type == IPL_TYPE_FCP) { - make_attrs_ro(reipl_fcp_attrs); - sys_reipl_fcp_scp_data_attr.attr.mode = S_IRUGO; - } else - return 0; - } - reipl_block_fcp = (void *) get_zeroed_page(GFP_KERNEL); if (!reipl_block_fcp) return -ENOMEM; @@ -1246,30 +1345,151 @@ static int __init reipl_fcp_init(void) } rc = sysfs_create_group(&reipl_fcp_kset->kobj, &reipl_fcp_attr_group); - if (rc) { - kset_unregister(reipl_fcp_kset); - free_page((unsigned long) reipl_block_fcp); - return rc; + if (rc) + goto out1; + + if (test_facility(141)) { + rc = sysfs_create_file(&reipl_fcp_kset->kobj, + &sys_reipl_fcp_clear_attr.attr); + if (rc) + goto out2; + } else { + reipl_fcp_clear = true; } if (ipl_info.type == IPL_TYPE_FCP) { - memcpy(reipl_block_fcp, IPL_PARMBLOCK_START, PAGE_SIZE); + memcpy(reipl_block_fcp, &ipl_block, sizeof(ipl_block)); /* * Fix loadparm: There are systems where the (SCSI) LOADPARM * 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->ipl_info.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; + +out2: + sysfs_remove_group(&reipl_fcp_kset->kobj, &reipl_fcp_attr_group); +out1: + kset_unregister(reipl_fcp_kset); + free_page((unsigned long) reipl_block_fcp); + return rc; +} + +static int __init reipl_nvme_init(void) +{ + int rc; + + reipl_block_nvme = (void *) get_zeroed_page(GFP_KERNEL); + if (!reipl_block_nvme) + return -ENOMEM; + + /* sysfs: create kset for mixing attr group and bin attrs */ + reipl_nvme_kset = kset_create_and_add(IPL_NVME_STR, NULL, + &reipl_kset->kobj); + if (!reipl_nvme_kset) { + free_page((unsigned long) reipl_block_nvme); + return -ENOMEM; + } + + rc = sysfs_create_group(&reipl_nvme_kset->kobj, &reipl_nvme_attr_group); + if (rc) + goto out1; + + if (test_facility(141)) { + rc = sysfs_create_file(&reipl_nvme_kset->kobj, + &sys_reipl_nvme_clear_attr.attr); + if (rc) + goto out2; + } else { + reipl_nvme_clear = true; + } + + if (ipl_info.type == IPL_TYPE_NVME) { + memcpy(reipl_block_nvme, &ipl_block, sizeof(ipl_block)); + /* + * Fix loadparm: There are systems where the (SCSI) LOADPARM + * is invalid in the IPL parameter block, so take it + * always from sclp_ipl_info. + */ + memcpy(reipl_block_nvme->nvme.loadparm, sclp_ipl_info.loadparm, + LOADPARM_LEN); + } else { + reipl_block_nvme->hdr.len = IPL_BP_NVME_LEN; + reipl_block_nvme->hdr.version = IPL_PARM_BLOCK_VERSION; + reipl_block_nvme->nvme.len = IPL_BP0_NVME_LEN; + reipl_block_nvme->nvme.pbt = IPL_PBT_NVME; + reipl_block_nvme->nvme.opt = IPL_PB0_NVME_OPT_IPL; + } + reipl_capabilities |= IPL_TYPE_NVME; + return 0; + +out2: + sysfs_remove_group(&reipl_nvme_kset->kobj, &reipl_nvme_attr_group); +out1: + kset_unregister(reipl_nvme_kset); + free_page((unsigned long) reipl_block_nvme); + return rc; +} + +static int __init reipl_eckd_init(void) +{ + int rc; + + if (!sclp.has_sipl_eckd) + return 0; + + reipl_block_eckd = (void *)get_zeroed_page(GFP_KERNEL); + if (!reipl_block_eckd) + return -ENOMEM; + + /* sysfs: create kset for mixing attr group and bin attrs */ + reipl_eckd_kset = kset_create_and_add(IPL_ECKD_STR, NULL, + &reipl_kset->kobj); + if (!reipl_eckd_kset) { + free_page((unsigned long)reipl_block_eckd); + return -ENOMEM; + } + + rc = sysfs_create_group(&reipl_eckd_kset->kobj, &reipl_eckd_attr_group); + if (rc) + goto out1; + + if (test_facility(141)) { + rc = sysfs_create_file(&reipl_eckd_kset->kobj, + &sys_reipl_eckd_clear_attr.attr); + if (rc) + goto out2; + } else { + reipl_eckd_clear = true; + } + + if (ipl_info.type == IPL_TYPE_ECKD) { + memcpy(reipl_block_eckd, &ipl_block, sizeof(ipl_block)); + } else { + reipl_block_eckd->hdr.len = IPL_BP_ECKD_LEN; + reipl_block_eckd->hdr.version = IPL_PARM_BLOCK_VERSION; + reipl_block_eckd->eckd.len = IPL_BP0_ECKD_LEN; + reipl_block_eckd->eckd.pbt = IPL_PBT_ECKD; + reipl_block_eckd->eckd.opt = IPL_PB0_ECKD_OPT_IPL; + } + reipl_capabilities |= IPL_TYPE_ECKD; + return 0; + +out2: + sysfs_remove_group(&reipl_eckd_kset->kobj, &reipl_eckd_attr_group); +out1: + kset_unregister(reipl_eckd_kset); + free_page((unsigned long)reipl_block_eckd); + return rc; } static int __init reipl_type_init(void) @@ -1284,12 +1504,18 @@ 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_NVME) { + memcpy(reipl_block_nvme, reipl_block, size); + reipl_type = IPL_TYPE_NVME; + } else if (reipl_block->pb0_hdr.pbt == IPL_PBT_CCW) { memcpy(reipl_block_ccw, reipl_block, size); reipl_type = IPL_TYPE_CCW; + } else if (reipl_block->pb0_hdr.pbt == IPL_PBT_ECKD) { + memcpy(reipl_block_eckd, reipl_block, size); + reipl_type = IPL_TYPE_ECKD; } out: return reipl_set_type(reipl_type); @@ -1310,9 +1536,15 @@ static int __init reipl_init(void) rc = reipl_ccw_init(); if (rc) return rc; + rc = reipl_eckd_init(); + if (rc) + return rc; rc = reipl_fcp_init(); if (rc) return rc; + rc = reipl_nvme_init(); + if (rc) + return rc; rc = reipl_nss_init(); if (rc) return rc; @@ -1332,15 +1564,20 @@ static struct shutdown_action __refdata reipl_action = { /* FCP dump device attributes */ DEFINE_IPL_ATTR_RW(dump_fcp, wwpn, "0x%016llx\n", "%llx\n", - dump_block_fcp->ipl_info.fcp.wwpn); + dump_block_fcp->fcp.wwpn); DEFINE_IPL_ATTR_RW(dump_fcp, lun, "0x%016llx\n", "%llx\n", - dump_block_fcp->ipl_info.fcp.lun); + dump_block_fcp->fcp.lun); DEFINE_IPL_ATTR_RW(dump_fcp, bootprog, "%lld\n", "%lld\n", - dump_block_fcp->ipl_info.fcp.bootprog); + dump_block_fcp->fcp.bootprog); DEFINE_IPL_ATTR_RW(dump_fcp, br_lba, "%lld\n", "%lld\n", - dump_block_fcp->ipl_info.fcp.br_lba); + dump_block_fcp->fcp.br_lba); DEFINE_IPL_ATTR_RW(dump_fcp, device, "0.0.%04llx\n", "0.0.%llx\n", - dump_block_fcp->ipl_info.fcp.devno); + dump_block_fcp->fcp.devno); + +DEFINE_IPL_ATTR_SCP_DATA_RW(dump_fcp, dump_block_fcp->hdr, + dump_block_fcp->fcp, + IPL_BP_FCP_LEN, IPL_BP0_FCP_LEN, + DIAG308_SCPDATA_SIZE); static struct attribute *dump_fcp_attrs[] = { &sys_dump_fcp_device_attr.attr, @@ -1351,13 +1588,87 @@ static struct attribute *dump_fcp_attrs[] = { NULL, }; -static struct attribute_group dump_fcp_attr_group = { +static const struct bin_attribute *const dump_fcp_bin_attrs[] = { + &sys_dump_fcp_scp_data_attr, + NULL, +}; + +static const struct attribute_group dump_fcp_attr_group = { .name = IPL_FCP_STR, .attrs = dump_fcp_attrs, + .bin_attrs = dump_fcp_bin_attrs, +}; + +/* NVME dump device attributes */ +DEFINE_IPL_ATTR_RW(dump_nvme, fid, "0x%08llx\n", "%llx\n", + dump_block_nvme->nvme.fid); +DEFINE_IPL_ATTR_RW(dump_nvme, nsid, "0x%08llx\n", "%llx\n", + dump_block_nvme->nvme.nsid); +DEFINE_IPL_ATTR_RW(dump_nvme, bootprog, "%lld\n", "%llx\n", + dump_block_nvme->nvme.bootprog); +DEFINE_IPL_ATTR_RW(dump_nvme, br_lba, "%lld\n", "%llx\n", + dump_block_nvme->nvme.br_lba); + +DEFINE_IPL_ATTR_SCP_DATA_RW(dump_nvme, dump_block_nvme->hdr, + dump_block_nvme->nvme, + IPL_BP_NVME_LEN, IPL_BP0_NVME_LEN, + DIAG308_SCPDATA_SIZE); + +static struct attribute *dump_nvme_attrs[] = { + &sys_dump_nvme_fid_attr.attr, + &sys_dump_nvme_nsid_attr.attr, + &sys_dump_nvme_bootprog_attr.attr, + &sys_dump_nvme_br_lba_attr.attr, + NULL, +}; + +static const struct bin_attribute *const dump_nvme_bin_attrs[] = { + &sys_dump_nvme_scp_data_attr, + NULL, +}; + +static const struct attribute_group dump_nvme_attr_group = { + .name = IPL_NVME_STR, + .attrs = dump_nvme_attrs, + .bin_attrs = dump_nvme_bin_attrs, +}; + +/* ECKD dump device attributes */ +DEFINE_IPL_CCW_ATTR_RW(dump_eckd, device, dump_block_eckd->eckd); +DEFINE_IPL_ATTR_RW(dump_eckd, bootprog, "%lld\n", "%llx\n", + dump_block_eckd->eckd.bootprog); + +IPL_ATTR_BR_CHR_SHOW_FN(dump, dump_block_eckd->eckd); +IPL_ATTR_BR_CHR_STORE_FN(dump, dump_block_eckd->eckd); + +static struct kobj_attribute sys_dump_eckd_br_chr_attr = + __ATTR(br_chr, 0644, eckd_dump_br_chr_show, eckd_dump_br_chr_store); + +DEFINE_IPL_ATTR_SCP_DATA_RW(dump_eckd, dump_block_eckd->hdr, + dump_block_eckd->eckd, + IPL_BP_ECKD_LEN, IPL_BP0_ECKD_LEN, + DIAG308_SCPDATA_SIZE); + +static struct attribute *dump_eckd_attrs[] = { + &sys_dump_eckd_device_attr.attr, + &sys_dump_eckd_bootprog_attr.attr, + &sys_dump_eckd_br_chr_attr.attr, + NULL, +}; + +static const struct bin_attribute *const dump_eckd_bin_attrs[] = { + &sys_dump_eckd_scp_data_attr, + NULL, +}; + +static const struct attribute_group dump_eckd_attr_group = { + .name = IPL_ECKD_STR, + .attrs = dump_eckd_attrs, + .bin_attrs = dump_eckd_bin_attrs, }; /* CCW dump device attributes */ -DEFINE_IPL_CCW_ATTR_RW(dump_ccw, device, dump_block_ccw->ipl_info.ccw); +DEFINE_IPL_CCW_ATTR_RW(dump_ccw, device, dump_block_ccw->ccw); static struct attribute *dump_ccw_attrs[] = { &sys_dump_ccw_device_attr.attr, @@ -1375,21 +1686,6 @@ static int dump_set_type(enum dump_type type) { if (!(dump_capabilities & type)) return -EINVAL; - switch (type) { - case DUMP_TYPE_CCW: - if (diag308_set_works) - dump_method = DUMP_METHOD_CCW_DIAG; - else if (MACHINE_IS_VM) - dump_method = DUMP_METHOD_CCW_VM; - else - dump_method = DUMP_METHOD_CCW_CIO; - break; - case DUMP_TYPE_FCP: - dump_method = DUMP_METHOD_FCP_DIAG; - break; - default: - dump_method = DUMP_METHOD_NONE; - } dump_type = type; return 0; } @@ -1397,7 +1693,7 @@ static int dump_set_type(enum dump_type type) static ssize_t dump_type_show(struct kobject *kobj, struct kobj_attribute *attr, char *page) { - return sprintf(page, "%s\n", dump_type_str(dump_type)); + return sysfs_emit(page, "%s\n", dump_type_str(dump_type)); } static ssize_t dump_type_store(struct kobject *kobj, @@ -1410,14 +1706,36 @@ static ssize_t dump_type_store(struct kobject *kobj, rc = dump_set_type(DUMP_TYPE_NONE); else if (strncmp(buf, DUMP_CCW_STR, strlen(DUMP_CCW_STR)) == 0) rc = dump_set_type(DUMP_TYPE_CCW); + else if (strncmp(buf, DUMP_ECKD_STR, strlen(DUMP_ECKD_STR)) == 0) + rc = dump_set_type(DUMP_TYPE_ECKD); else if (strncmp(buf, DUMP_FCP_STR, strlen(DUMP_FCP_STR)) == 0) rc = dump_set_type(DUMP_TYPE_FCP); + else if (strncmp(buf, DUMP_NVME_STR, strlen(DUMP_NVME_STR)) == 0) + rc = dump_set_type(DUMP_TYPE_NVME); return (rc != 0) ? rc : len; } static struct kobj_attribute dump_type_attr = __ATTR(dump_type, 0644, dump_type_show, dump_type_store); +static ssize_t dump_area_size_show(struct kobject *kobj, + struct kobj_attribute *attr, char *page) +{ + return sysfs_emit(page, "%lu\n", sclp.hsa_size); +} + +static struct kobj_attribute dump_area_size_attr = __ATTR_RO(dump_area_size); + +static struct attribute *dump_attrs[] = { + &dump_type_attr.attr, + &dump_area_size_attr.attr, + NULL, +}; + +static struct attribute_group dump_attr_group = { + .attrs = dump_attrs, +}; + static struct kset *dump_kset; static void diag308_dump(void *dump_block) @@ -1426,33 +1744,25 @@ static void diag308_dump(void *dump_block) while (1) { if (diag308(DIAG308_LOAD_NORMAL_DUMP, NULL) != 0x302) break; - udelay_simple(USEC_PER_SEC); + udelay(USEC_PER_SEC); } } static void __dump_run(void *unused) { - struct ccw_dev_id devid; - static char buf[100]; - - switch (dump_method) { - case DUMP_METHOD_CCW_CIO: - devid.ssid = dump_block_ccw->ipl_info.ccw.ssid; - devid.devno = dump_block_ccw->ipl_info.ccw.devno; - reipl_ccw_dev(&devid); - break; - case DUMP_METHOD_CCW_VM: - sprintf(buf, "STORE STATUS"); - __cpcmd(buf, NULL, 0, NULL); - sprintf(buf, "IPL %X", dump_block_ccw->ipl_info.ccw.devno); - __cpcmd(buf, NULL, 0, NULL); - break; - case DUMP_METHOD_CCW_DIAG: + switch (dump_type) { + case DUMP_TYPE_CCW: diag308_dump(dump_block_ccw); break; - case DUMP_METHOD_FCP_DIAG: + case DUMP_TYPE_ECKD: + diag308_dump(dump_block_eckd); + break; + case DUMP_TYPE_FCP: diag308_dump(dump_block_fcp); break; + case DUMP_TYPE_NVME: + diag308_dump(dump_block_nvme); + break; default: break; } @@ -1460,7 +1770,7 @@ static void __dump_run(void *unused) static void dump_run(struct shutdown_trigger *trigger) { - if (dump_method == DUMP_METHOD_NONE) + if (dump_type == DUMP_TYPE_NONE) return; smp_send_stop(); smp_call_ipl_cpu(__dump_run, NULL); @@ -1478,10 +1788,10 @@ 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; } @@ -1492,8 +1802,6 @@ static int __init dump_fcp_init(void) if (!sclp_ipl_info.has_dump) return 0; /* LDIPL DUMP is not installed */ - if (!diag308_set_works) - return 0; dump_block_fcp = (void *) get_zeroed_page(GFP_KERNEL); if (!dump_block_fcp) return -ENOMEM; @@ -1502,15 +1810,61 @@ 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->ipl_info.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; } +static int __init dump_nvme_init(void) +{ + int rc; + + if (!sclp_ipl_info.has_dump) + return 0; /* LDIPL DUMP is not installed */ + dump_block_nvme = (void *) get_zeroed_page(GFP_KERNEL); + if (!dump_block_nvme) + return -ENOMEM; + rc = sysfs_create_group(&dump_kset->kobj, &dump_nvme_attr_group); + if (rc) { + free_page((unsigned long)dump_block_nvme); + return rc; + } + dump_block_nvme->hdr.len = IPL_BP_NVME_LEN; + dump_block_nvme->hdr.version = IPL_PARM_BLOCK_VERSION; + dump_block_nvme->nvme.len = IPL_BP0_NVME_LEN; + dump_block_nvme->nvme.pbt = IPL_PBT_NVME; + dump_block_nvme->nvme.opt = IPL_PB0_NVME_OPT_DUMP; + dump_capabilities |= DUMP_TYPE_NVME; + return 0; +} + +static int __init dump_eckd_init(void) +{ + int rc; + + if (!sclp_ipl_info.has_dump || !sclp.has_sipl_eckd) + return 0; /* LDIPL DUMP is not installed */ + dump_block_eckd = (void *)get_zeroed_page(GFP_KERNEL); + if (!dump_block_eckd) + return -ENOMEM; + rc = sysfs_create_group(&dump_kset->kobj, &dump_eckd_attr_group); + if (rc) { + free_page((unsigned long)dump_block_eckd); + return rc; + } + dump_block_eckd->hdr.len = IPL_BP_ECKD_LEN; + dump_block_eckd->hdr.version = IPL_PARM_BLOCK_VERSION; + dump_block_eckd->eckd.len = IPL_BP0_ECKD_LEN; + dump_block_eckd->eckd.pbt = IPL_PBT_ECKD; + dump_block_eckd->eckd.opt = IPL_PB0_ECKD_OPT_DUMP; + dump_capabilities |= DUMP_TYPE_ECKD; + return 0; +} + static int __init dump_init(void) { int rc; @@ -1518,7 +1872,7 @@ static int __init dump_init(void) dump_kset = kset_create_and_add("dump", NULL, firmware_kobj); if (!dump_kset) return -ENOMEM; - rc = sysfs_create_file(&dump_kset->kobj, &dump_type_attr.attr); + rc = sysfs_create_group(&dump_kset->kobj, &dump_attr_group); if (rc) { kset_unregister(dump_kset); return rc; @@ -1526,9 +1880,15 @@ static int __init dump_init(void) rc = dump_ccw_init(); if (rc) return rc; + rc = dump_eckd_init(); + if (rc) + return rc; rc = dump_fcp_init(); if (rc) return rc; + rc = dump_nvme_init(); + if (rc) + return rc; dump_set_type(DUMP_TYPE_NONE); return 0; } @@ -1541,39 +1901,47 @@ static struct shutdown_action __refdata dump_action = { static void dump_reipl_run(struct shutdown_trigger *trigger) { - unsigned long ipib = (unsigned long) reipl_block_actual; + struct lowcore *abs_lc; unsigned int csum; - csum = (__force unsigned int) - csum_partial(reipl_block_actual, reipl_block_actual->hdr.len, 0); - mem_assign_absolute(S390_lowcore.ipib, ipib); - mem_assign_absolute(S390_lowcore.ipib_checksum, csum); + /* + * Set REIPL_CLEAR flag in os_info flags entry indicating + * 'clear' sysfs attribute has been set on the panicked system + * for specified reipl type. + * Always set for IPL_TYPE_NSS and IPL_TYPE_UNKNOWN. + */ + if ((reipl_type == IPL_TYPE_CCW && reipl_ccw_clear) || + (reipl_type == IPL_TYPE_ECKD && reipl_eckd_clear) || + (reipl_type == IPL_TYPE_FCP && reipl_fcp_clear) || + (reipl_type == IPL_TYPE_NVME && reipl_nvme_clear) || + reipl_type == IPL_TYPE_NSS || + reipl_type == IPL_TYPE_UNKNOWN) + os_info_flags |= OS_INFO_FLAG_REIPL_CLEAR; + os_info_entry_add_data(OS_INFO_FLAGS_ENTRY, &os_info_flags, sizeof(os_info_flags)); + csum = (__force unsigned int)cksm(reipl_block_actual, reipl_block_actual->hdr.len, 0); + abs_lc = get_abs_lowcore(); + abs_lc->ipib = __pa(reipl_block_actual); + abs_lc->ipib_checksum = csum; + put_abs_lowcore(abs_lc); dump_run(trigger); } -static int __init dump_reipl_init(void) -{ - if (!diag308_set_works) - return -EOPNOTSUPP; - else - return 0; -} - static struct shutdown_action __refdata dump_reipl_action = { .name = SHUTDOWN_ACTION_DUMP_REIPL_STR, .fn = dump_reipl_run, - .init = dump_reipl_init, }; /* * vmcmd shutdown action: Trigger vm command on shutdown. */ -static char vmcmd_on_reboot[128]; -static char vmcmd_on_panic[128]; -static char vmcmd_on_halt[128]; -static char vmcmd_on_poff[128]; -static char vmcmd_on_restart[128]; +#define VMCMD_MAX_SIZE 240 + +static char vmcmd_on_reboot[VMCMD_MAX_SIZE + 1]; +static char vmcmd_on_panic[VMCMD_MAX_SIZE + 1]; +static char vmcmd_on_halt[VMCMD_MAX_SIZE + 1]; +static char vmcmd_on_poff[VMCMD_MAX_SIZE + 1]; +static char vmcmd_on_restart[VMCMD_MAX_SIZE + 1]; DEFINE_IPL_ATTR_STR_RW(vmcmd, on_reboot, "%s\n", "%s\n", vmcmd_on_reboot); DEFINE_IPL_ATTR_STR_RW(vmcmd, on_panic, "%s\n", "%s\n", vmcmd_on_panic); @@ -1620,7 +1988,7 @@ static void vmcmd_run(struct shutdown_trigger *trigger) static int vmcmd_init(void) { - if (!MACHINE_IS_VM) + if (!machine_is_vm()) return -EOPNOTSUPP; vmcmd_kset = kset_create_and_add("vmcmd", NULL, firmware_kobj); if (!vmcmd_kset) @@ -1639,7 +2007,7 @@ static void stop_run(struct shutdown_trigger *trigger) { if (strcmp(trigger->name, ON_PANIC_STR) == 0 || strcmp(trigger->name, ON_RESTART_STR) == 0) - disabled_wait((unsigned long) __builtin_return_address(0)); + disabled_wait(); smp_stop_cpu(); } @@ -1685,7 +2053,7 @@ static struct shutdown_trigger on_reboot_trigger = {ON_REIPL_STR, static ssize_t on_reboot_show(struct kobject *kobj, struct kobj_attribute *attr, char *page) { - return sprintf(page, "%s\n", on_reboot_trigger.action->name); + return sysfs_emit(page, "%s\n", on_reboot_trigger.action->name); } static ssize_t on_reboot_store(struct kobject *kobj, @@ -1711,7 +2079,7 @@ static struct shutdown_trigger on_panic_trigger = {ON_PANIC_STR, &stop_action}; static ssize_t on_panic_show(struct kobject *kobj, struct kobj_attribute *attr, char *page) { - return sprintf(page, "%s\n", on_panic_trigger.action->name); + return sysfs_emit(page, "%s\n", on_panic_trigger.action->name); } static ssize_t on_panic_store(struct kobject *kobj, @@ -1737,7 +2105,7 @@ static struct shutdown_trigger on_restart_trigger = {ON_RESTART_STR, static ssize_t on_restart_show(struct kobject *kobj, struct kobj_attribute *attr, char *page) { - return sprintf(page, "%s\n", on_restart_trigger.action->name); + return sysfs_emit(page, "%s\n", on_restart_trigger.action->name); } static ssize_t on_restart_store(struct kobject *kobj, @@ -1750,7 +2118,6 @@ static struct kobj_attribute on_restart_attr = __ATTR_RW(on_restart); static void __do_restart(void *ignore) { - __arch_local_irq_stosm(0x04); /* enable DAT */ smp_send_stop(); #ifdef CONFIG_CRASH_DUMP crash_kexec(NULL); @@ -1759,12 +2126,12 @@ static void __do_restart(void *ignore) stop_run(&on_restart_trigger); } -void do_restart(void) +void do_restart(void *arg) { tracing_off(); debug_locks_off(); lgr_info_log(); - smp_call_online_cpu(__do_restart, NULL); + smp_call_ipl_cpu(__do_restart, arg); } /* on halt */ @@ -1774,7 +2141,7 @@ static struct shutdown_trigger on_halt_trigger = {ON_HALT_STR, &stop_action}; static ssize_t on_halt_show(struct kobject *kobj, struct kobj_attribute *attr, char *page) { - return sprintf(page, "%s\n", on_halt_trigger.action->name); + return sysfs_emit(page, "%s\n", on_halt_trigger.action->name); } static ssize_t on_halt_store(struct kobject *kobj, @@ -1800,7 +2167,7 @@ static struct shutdown_trigger on_poff_trigger = {ON_POFF_STR, &stop_action}; static ssize_t on_poff_show(struct kobject *kobj, struct kobj_attribute *attr, char *page) { - return sprintf(page, "%s\n", on_poff_trigger.action->name); + return sysfs_emit(page, "%s\n", on_poff_trigger.action->name); } static ssize_t on_poff_store(struct kobject *kobj, @@ -1873,10 +2240,8 @@ static int __init s390_ipl_init(void) * case the system is booted from HMC. Fortunately in this case * READ SCP info provides the correct value. */ - if (memcmp(sclp_ipl_info.loadparm, str, sizeof(str)) == 0 && - diag308_set_works) - memcpy(sclp_ipl_info.loadparm, ipl_block.hdr.loadparm, - LOADPARM_LEN); + if (memcmp(sclp_ipl_info.loadparm, str, sizeof(str)) == 0 && ipl_block_valid) + memcpy(sclp_ipl_info.loadparm, ipl_block.ccw.loadparm, LOADPARM_LEN); shutdown_actions_init(); shutdown_triggers_init(); return 0; @@ -1884,26 +2249,28 @@ static int __init s390_ipl_init(void) __initcall(s390_ipl_init); -static void __init strncpy_skip_quote(char *dst, char *src, int n) +static void __init strscpy_skip_quote(char *dst, char *src, int n) { int sx, dx; - dx = 0; - for (sx = 0; src[sx] != 0; sx++) { + if (!n) + return; + for (sx = 0, dx = 0; src[sx]; sx++) { if (src[sx] == '"') continue; - dst[dx++] = src[sx]; - if (dx >= n) + dst[dx] = src[sx]; + if (dx + 1 == n) break; + dx++; } + dst[dx] = '\0'; } static int __init vmcmd_on_reboot_setup(char *str) { - if (!MACHINE_IS_VM) + if (!machine_is_vm()) return 1; - strncpy_skip_quote(vmcmd_on_reboot, str, 127); - vmcmd_on_reboot[127] = 0; + strscpy_skip_quote(vmcmd_on_reboot, str, sizeof(vmcmd_on_reboot)); on_reboot_trigger.action = &vmcmd_action; return 1; } @@ -1911,10 +2278,9 @@ __setup("vmreboot=", vmcmd_on_reboot_setup); static int __init vmcmd_on_panic_setup(char *str) { - if (!MACHINE_IS_VM) + if (!machine_is_vm()) return 1; - strncpy_skip_quote(vmcmd_on_panic, str, 127); - vmcmd_on_panic[127] = 0; + strscpy_skip_quote(vmcmd_on_panic, str, sizeof(vmcmd_on_panic)); on_panic_trigger.action = &vmcmd_action; return 1; } @@ -1922,10 +2288,9 @@ __setup("vmpanic=", vmcmd_on_panic_setup); static int __init vmcmd_on_halt_setup(char *str) { - if (!MACHINE_IS_VM) + if (!machine_is_vm()) return 1; - strncpy_skip_quote(vmcmd_on_halt, str, 127); - vmcmd_on_halt[127] = 0; + strscpy_skip_quote(vmcmd_on_halt, str, sizeof(vmcmd_on_halt)); on_halt_trigger.action = &vmcmd_action; return 1; } @@ -1933,10 +2298,9 @@ __setup("vmhalt=", vmcmd_on_halt_setup); static int __init vmcmd_on_poff_setup(char *str) { - if (!MACHINE_IS_VM) + if (!machine_is_vm()) return 1; - strncpy_skip_quote(vmcmd_on_poff, str, 127); - vmcmd_on_poff[127] = 0; + strscpy_skip_quote(vmcmd_on_poff, str, sizeof(vmcmd_on_poff)); on_poff_trigger.action = &vmcmd_action; return 1; } @@ -1956,24 +2320,32 @@ static struct notifier_block on_panic_nb = { void __init setup_ipl(void) { + BUILD_BUG_ON(sizeof(struct ipl_parameter_block) != PAGE_SIZE); + ipl_info.type = get_ipl_type(); switch (ipl_info.type) { case IPL_TYPE_CCW: - ipl_info.data.ccw.dev_id.ssid = ipl_ssid; - ipl_info.data.ccw.dev_id.devno = ipl_devno; + ipl_info.data.ccw.dev_id.ssid = ipl_block.ccw.ssid; + ipl_info.data.ccw.dev_id.devno = ipl_block.ccw.devno; + break; + case IPL_TYPE_ECKD: + case IPL_TYPE_ECKD_DUMP: + ipl_info.data.eckd.dev_id.ssid = ipl_block.eckd.ssid; + ipl_info.data.eckd.dev_id.devno = ipl_block.eckd.devno; break; case IPL_TYPE_FCP: case IPL_TYPE_FCP_DUMP: ipl_info.data.fcp.dev_id.ssid = 0; - ipl_info.data.fcp.dev_id.devno = - IPL_PARMBLOCK_START->ipl_info.fcp.devno; - ipl_info.data.fcp.wwpn = IPL_PARMBLOCK_START->ipl_info.fcp.wwpn; - ipl_info.data.fcp.lun = IPL_PARMBLOCK_START->ipl_info.fcp.lun; + ipl_info.data.fcp.dev_id.devno = ipl_block.fcp.devno; + ipl_info.data.fcp.wwpn = ipl_block.fcp.wwpn; + ipl_info.data.fcp.lun = ipl_block.fcp.lun; break; - case IPL_TYPE_NSS: - strncpy(ipl_info.data.nss.name, kernel_nss_name, - sizeof(ipl_info.data.nss.name)); + case IPL_TYPE_NVME: + case IPL_TYPE_NVME_DUMP: + ipl_info.data.nvme.fid = ipl_block.nvme.fid; + ipl_info.data.nvme.nsid = ipl_block.nvme.nsid; break; + case IPL_TYPE_NSS: case IPL_TYPE_UNKNOWN: /* We have no info to copy */ break; @@ -1981,85 +2353,147 @@ void __init setup_ipl(void) atomic_notifier_chain_register(&panic_notifier_list, &on_panic_nb); } -void __init ipl_update_parameters(void) +void s390_reset_system(void) { - int rc; + /* Disable prefixing */ + set_prefix(0); - rc = diag308(DIAG308_STORE, &ipl_block); - if ((rc == DIAG308_RC_OK) || (rc == DIAG308_RC_NOCONFIG)) - diag308_set_works = 1; + /* Disable lowcore protection */ + local_ctl_clear_bit(0, CR0_LOW_ADDRESS_PROTECTION_BIT); + diag_amode31_ops.diag308_reset(); } -void __init ipl_verify_parameters(void) +#ifdef CONFIG_KEXEC_FILE + +int ipl_report_add_component(struct ipl_report *report, struct kexec_buf *kbuf, + unsigned char flags, unsigned short cert) { - struct cio_iplinfo iplinfo; + struct ipl_report_component *comp; - if (cio_get_iplinfo(&iplinfo)) - return; + comp = vzalloc(sizeof(*comp)); + if (!comp) + return -ENOMEM; + list_add_tail(&comp->list, &report->components); - ipl_ssid = iplinfo.ssid; - ipl_devno = iplinfo.devno; - ipl_flags |= IPL_DEVNO_VALID; - if (!iplinfo.is_qdio) - return; - ipl_flags |= IPL_PARMBLOCK_VALID; -} + comp->entry.addr = kbuf->mem; + comp->entry.len = kbuf->memsz; + comp->entry.flags = flags; + comp->entry.certificate_index = cert; -static LIST_HEAD(rcall); -static DEFINE_MUTEX(rcall_mutex); + report->size += sizeof(comp->entry); -void register_reset_call(struct reset_call *reset) -{ - mutex_lock(&rcall_mutex); - list_add(&reset->list, &rcall); - mutex_unlock(&rcall_mutex); + return 0; } -EXPORT_SYMBOL_GPL(register_reset_call); -void unregister_reset_call(struct reset_call *reset) +int ipl_report_add_certificate(struct ipl_report *report, void *key, + unsigned long addr, unsigned long len) { - mutex_lock(&rcall_mutex); - list_del(&reset->list); - mutex_unlock(&rcall_mutex); + struct ipl_report_certificate *cert; + + cert = vzalloc(sizeof(*cert)); + if (!cert) + return -ENOMEM; + list_add_tail(&cert->list, &report->certificates); + + cert->entry.addr = addr; + cert->entry.len = len; + cert->key = key; + + report->size += sizeof(cert->entry); + report->size += cert->entry.len; + + return 0; } -EXPORT_SYMBOL_GPL(unregister_reset_call); -static void do_reset_calls(void) +struct ipl_report *ipl_report_init(struct ipl_parameter_block *ipib) { - struct reset_call *reset; + struct ipl_report *report; - if (diag308_set_works) { - diag308_reset(); - return; - } - list_for_each_entry(reset, &rcall, list) - reset->fn(); + report = vzalloc(sizeof(*report)); + if (!report) + return ERR_PTR(-ENOMEM); + + report->ipib = ipib; + INIT_LIST_HEAD(&report->components); + INIT_LIST_HEAD(&report->certificates); + + report->size = ALIGN(ipib->hdr.len, 8); + report->size += sizeof(struct ipl_rl_hdr); + report->size += sizeof(struct ipl_rb_components); + report->size += sizeof(struct ipl_rb_certificates); + + return report; } -void s390_reset_system(void) +void *ipl_report_finish(struct ipl_report *report) { - struct lowcore *lc; + struct ipl_report_certificate *cert; + struct ipl_report_component *comp; + struct ipl_rb_certificates *certs; + struct ipl_parameter_block *ipib; + struct ipl_rb_components *comps; + struct ipl_rl_hdr *rl_hdr; + void *buf, *ptr; - lc = (struct lowcore *)(unsigned long) store_prefix(); + buf = vzalloc(report->size); + if (!buf) + goto out; + ptr = buf; + + memcpy(ptr, report->ipib, report->ipib->hdr.len); + ipib = ptr; + if (ipl_secure_flag) + ipib->hdr.flags |= IPL_PL_FLAG_SIPL; + ipib->hdr.flags |= IPL_PL_FLAG_IPLSR; + ptr += report->ipib->hdr.len; + ptr = PTR_ALIGN(ptr, 8); + + rl_hdr = ptr; + ptr += sizeof(*rl_hdr); + + comps = ptr; + comps->rbt = IPL_RBT_COMPONENTS; + ptr += sizeof(*comps); + list_for_each_entry(comp, &report->components, list) { + memcpy(ptr, &comp->entry, sizeof(comp->entry)); + ptr += sizeof(comp->entry); + } + comps->len = ptr - (void *)comps; + + certs = ptr; + certs->rbt = IPL_RBT_CERTIFICATES; + ptr += sizeof(*certs); + list_for_each_entry(cert, &report->certificates, list) { + memcpy(ptr, &cert->entry, sizeof(cert->entry)); + ptr += sizeof(cert->entry); + } + certs->len = ptr - (void *)certs; + rl_hdr->len = ptr - (void *)rl_hdr; - /* Stack for interrupt/machine check handler */ - lc->panic_stack = S390_lowcore.panic_stack; + list_for_each_entry(cert, &report->certificates, list) { + memcpy(ptr, cert->key, cert->entry.len); + ptr += cert->entry.len; + } - /* Disable prefixing */ - set_prefix(0); + BUG_ON(ptr > buf + report->size); +out: + return buf; +} - /* Disable lowcore protection */ - __ctl_clear_bit(0,28); +int ipl_report_free(struct ipl_report *report) +{ + struct ipl_report_component *comp, *ncomp; + struct ipl_report_certificate *cert, *ncert; + + list_for_each_entry_safe(comp, ncomp, &report->components, list) + vfree(comp); - /* Set new machine check handler */ - S390_lowcore.mcck_new_psw.mask = PSW_KERNEL_BITS | PSW_MASK_DAT; - S390_lowcore.mcck_new_psw.addr = - (unsigned long) s390_base_mcck_handler; + list_for_each_entry_safe(cert, ncert, &report->certificates, list) + vfree(cert); - /* Set new program check handler */ - S390_lowcore.program_new_psw.mask = PSW_KERNEL_BITS | PSW_MASK_DAT; - S390_lowcore.program_new_psw.addr = - (unsigned long) s390_base_pgm_handler; + vfree(report); - do_reset_calls(); + return 0; } + +#endif |