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b1aa01d312
With z16 a new flag 'search boot program' was introduced for list-directed IPL (SCSI, NVMe, ECKD DASD). If this flag is set, e.g. via selecting the "Automatic" value for the "Boot program selector" control on an HMC load panel, it is copied to the reipl structure from the initial ipl structure. When a user now sets a boot prog via sysfs, the flag is not cleared and the bootloader will again automatically select the boot program, ignoring user configuration. To avoid that, clear the SBP flag when a bootprog sysfs file is written. Cc: stable@vger.kernel.org Reviewed-by: Peter Oberparleiter <oberpar@linux.ibm.com> Reviewed-by: Heiko Carstens <hca@linux.ibm.com> Signed-off-by: Sven Schnelle <svens@linux.ibm.com> Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
210 lines
3.8 KiB
C
210 lines
3.8 KiB
C
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
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#ifndef _ASM_S390_UAPI_IPL_H
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#define _ASM_S390_UAPI_IPL_H
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#include <linux/types.h>
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/* IPL Parameter List header */
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struct ipl_pl_hdr {
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__u32 len;
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__u8 flags;
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__u8 reserved1[2];
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__u8 version;
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} __packed;
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#define IPL_PL_FLAG_IPLPS 0x80
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#define IPL_PL_FLAG_SIPL 0x40
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#define IPL_PL_FLAG_IPLSR 0x20
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#define IPL_PL_FLAG_SBP 0x10
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/* IPL Parameter Block header */
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struct ipl_pb_hdr {
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__u32 len;
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__u8 pbt;
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} __packed;
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/* IPL Parameter Block types */
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enum ipl_pbt {
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IPL_PBT_FCP = 0,
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IPL_PBT_SCP_DATA = 1,
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IPL_PBT_CCW = 2,
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IPL_PBT_ECKD = 3,
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IPL_PBT_NVME = 4,
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};
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/* IPL Parameter Block 0 with common fields */
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struct ipl_pb0_common {
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__u32 len;
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__u8 pbt;
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__u8 flags;
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__u8 reserved1[2];
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__u8 loadparm[8];
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__u8 reserved2[84];
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} __packed;
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#define IPL_PB0_FLAG_LOADPARM 0x80
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/* IPL Parameter Block 0 for FCP */
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struct ipl_pb0_fcp {
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__u32 len;
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__u8 pbt;
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__u8 reserved1[3];
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__u8 loadparm[8];
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__u8 reserved2[304];
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__u8 opt;
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__u8 reserved3[3];
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__u8 cssid;
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__u8 reserved4[1];
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__u16 devno;
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__u8 reserved5[4];
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__u64 wwpn;
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__u64 lun;
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__u32 bootprog;
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__u8 reserved6[12];
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__u64 br_lba;
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__u32 scp_data_len;
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__u8 reserved7[260];
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__u8 scp_data[];
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} __packed;
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#define IPL_PB0_FCP_OPT_IPL 0x10
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#define IPL_PB0_FCP_OPT_DUMP 0x20
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/* IPL Parameter Block 0 for NVMe */
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struct ipl_pb0_nvme {
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__u32 len;
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__u8 pbt;
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__u8 reserved1[3];
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__u8 loadparm[8];
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__u8 reserved2[304];
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__u8 opt;
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__u8 reserved3[3];
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__u32 fid;
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__u8 reserved4[12];
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__u32 nsid;
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__u8 reserved5[4];
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__u32 bootprog;
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__u8 reserved6[12];
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__u64 br_lba;
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__u32 scp_data_len;
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__u8 reserved7[260];
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__u8 scp_data[];
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} __packed;
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#define IPL_PB0_NVME_OPT_IPL 0x10
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#define IPL_PB0_NVME_OPT_DUMP 0x20
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/* IPL Parameter Block 0 for CCW */
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struct ipl_pb0_ccw {
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__u32 len;
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__u8 pbt;
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__u8 flags;
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__u8 reserved1[2];
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__u8 loadparm[8];
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__u8 reserved2[84];
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__u16 reserved3 : 13;
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__u8 ssid : 3;
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__u16 devno;
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__u8 vm_flags;
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__u8 reserved4[3];
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__u32 vm_parm_len;
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__u8 nss_name[8];
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__u8 vm_parm[64];
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__u8 reserved5[8];
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} __packed;
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/* IPL Parameter Block 0 for ECKD */
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struct ipl_pb0_eckd {
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__u32 len;
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__u8 pbt;
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__u8 reserved1[3];
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__u32 reserved2[78];
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__u8 opt;
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__u8 reserved4[4];
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__u8 reserved5:5;
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__u8 ssid:3;
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__u16 devno;
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__u32 reserved6[5];
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__u32 bootprog;
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__u8 reserved7[12];
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struct {
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__u16 cyl;
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__u8 head;
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__u8 record;
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__u32 reserved;
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} br_chr __packed;
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__u32 scp_data_len;
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__u8 reserved8[260];
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__u8 scp_data[];
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} __packed;
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#define IPL_PB0_ECKD_OPT_IPL 0x10
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#define IPL_PB0_ECKD_OPT_DUMP 0x20
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#define IPL_PB0_CCW_VM_FLAG_NSS 0x80
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#define IPL_PB0_CCW_VM_FLAG_VP 0x40
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/* IPL Parameter Block 1 for additional SCP data */
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struct ipl_pb1_scp_data {
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__u32 len;
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__u8 pbt;
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__u8 scp_data[];
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} __packed;
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/* IPL Report List header */
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struct ipl_rl_hdr {
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__u32 len;
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__u8 flags;
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__u8 reserved1[2];
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__u8 version;
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__u8 reserved2[8];
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} __packed;
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/* IPL Report Block header */
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struct ipl_rb_hdr {
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__u32 len;
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__u8 rbt;
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__u8 reserved1[11];
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} __packed;
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/* IPL Report Block types */
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enum ipl_rbt {
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IPL_RBT_CERTIFICATES = 1,
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IPL_RBT_COMPONENTS = 2,
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};
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/* IPL Report Block for the certificate list */
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struct ipl_rb_certificate_entry {
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__u64 addr;
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__u64 len;
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} __packed;
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struct ipl_rb_certificates {
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__u32 len;
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__u8 rbt;
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__u8 reserved1[11];
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struct ipl_rb_certificate_entry entries[];
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} __packed;
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/* IPL Report Block for the component list */
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struct ipl_rb_component_entry {
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__u64 addr;
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__u64 len;
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__u8 flags;
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__u8 reserved1[5];
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__u16 certificate_index;
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__u8 reserved2[8];
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};
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#define IPL_RB_COMPONENT_FLAG_SIGNED 0x80
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#define IPL_RB_COMPONENT_FLAG_VERIFIED 0x40
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struct ipl_rb_components {
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__u32 len;
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__u8 rbt;
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__u8 reserved1[11];
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struct ipl_rb_component_entry entries[];
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} __packed;
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#endif
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