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Diffstat (limited to 'arch/s390/include/uapi/asm/ipl.h')
-rw-r--r--arch/s390/include/uapi/asm/ipl.h94
1 files changed, 94 insertions, 0 deletions
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