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| author | Sven Schnelle <svens@linux.ibm.com> | 2022-10-05 10:17:40 +0200 |
|---|---|---|
| committer | Alexander Gordeev <agordeev@linux.ibm.com> | 2022-12-06 16:18:21 +0100 |
| commit | 87fd22e0ae9239f695266d3181b53ad9f758bd74 (patch) | |
| tree | 902546e6ac5f1457809d30ad8d3f7a513c8eda61 /arch/s390/include/asm | |
| parent | 5de2322d7b8ecba37152334ebaaddf687fd63a38 (diff) | |
| download | linux-87fd22e0ae9239f695266d3181b53ad9f758bd74.tar.bz2 | |
s390/ipl: add eckd support
This adds support to IPL from ECKD DASDs to linux.
It introduces a few sysfs files in /sys/firmware/reipl/eckd:
bootprog: the boot program selector
clear: whether to issue a diag308 LOAD_NORMAL or LOAD_CLEAR
device: the device to ipl from
br_chr: Cylinder/Head/Record number to read the bootrecord from.
Might be '0' or 'auto' if it should be read from the
volume label.
scpdata: data to be passed to the ipl'd program.
The new ipl type is called 'eckd'.
Signed-off-by: Sven Schnelle <svens@linux.ibm.com>
Reviewed-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
Diffstat (limited to 'arch/s390/include/asm')
| -rw-r--r-- | arch/s390/include/asm/ipl.h | 9 | ||||
| -rw-r--r-- | arch/s390/include/asm/sclp.h | 1 |
2 files changed, 10 insertions, 0 deletions
diff --git a/arch/s390/include/asm/ipl.h b/arch/s390/include/asm/ipl.h index a405b6bb89fb..1396ed05c6aa 100644 --- a/arch/s390/include/asm/ipl.h +++ b/arch/s390/include/asm/ipl.h @@ -22,6 +22,7 @@ struct ipl_parameter_block { struct ipl_pb0_common common; struct ipl_pb0_fcp fcp; struct ipl_pb0_ccw ccw; + struct ipl_pb0_eckd eckd; struct ipl_pb0_nvme nvme; char raw[PAGE_SIZE - sizeof(struct ipl_pl_hdr)]; }; @@ -41,6 +42,10 @@ struct ipl_parameter_block { sizeof(struct ipl_pb0_ccw)) #define IPL_BP0_CCW_LEN (sizeof(struct ipl_pb0_ccw)) +#define IPL_BP_ECKD_LEN (sizeof(struct ipl_pl_hdr) + \ + sizeof(struct ipl_pb0_eckd)) +#define IPL_BP0_ECKD_LEN (sizeof(struct ipl_pb0_eckd)) + #define IPL_MAX_SUPPORTED_VERSION (0) #define IPL_RB_CERT_UNKNOWN ((unsigned short)-1) @@ -68,6 +73,7 @@ enum ipl_type { IPL_TYPE_NSS = 16, IPL_TYPE_NVME = 32, IPL_TYPE_NVME_DUMP = 64, + IPL_TYPE_ECKD = 128, }; struct ipl_info @@ -79,6 +85,9 @@ struct ipl_info } ccw; struct { struct ccw_dev_id dev_id; + } eckd; + struct { + struct ccw_dev_id dev_id; u64 wwpn; u64 lun; } fcp; diff --git a/arch/s390/include/asm/sclp.h b/arch/s390/include/asm/sclp.h index 9d4c7f71e070..67a24dda17b6 100644 --- a/arch/s390/include/asm/sclp.h +++ b/arch/s390/include/asm/sclp.h @@ -87,6 +87,7 @@ struct sclp_info { unsigned char has_gisaf : 1; unsigned char has_diag318 : 1; unsigned char has_sipl : 1; + unsigned char has_sipl_eckd : 1; unsigned char has_dirq : 1; unsigned char has_iplcc : 1; unsigned char has_zpci_lsi : 1; |