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-rw-r--r--arch/s390/boot/ipl_parm.c10
-rw-r--r--arch/s390/include/asm/ipl.h103
-rw-r--r--arch/s390/include/uapi/asm/ipl.h94
-rw-r--r--arch/s390/kernel/ipl.c80
-rw-r--r--arch/s390/kernel/ipl_vmparm.c2
5 files changed, 161 insertions, 128 deletions
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 <asm/types.h>
#include <asm/cio.h>
#include <asm/setup.h>
+#include <uapi/asm/ipl.h>
-#define NSS_NAME_SIZE 8
-
-#define IPL_PARM_BLK_FCP_LEN (sizeof(struct ipl_list_hdr) + \
- sizeof(struct ipl_block_fcp))
-
-#define IPL_PARM_BLK0_FCP_LEN (sizeof(struct ipl_block_fcp) + 16)
+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_CCW_LEN (sizeof(struct ipl_list_hdr) + \
- sizeof(struct ipl_block_ccw))
+#define NSS_NAME_SIZE 8
-#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 <linux/types.h>
+
+/* 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);
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-08 18:22:15 +0000