1 /* 2 * SCLP definitions 3 * 4 * Based on the file pc-bios/s390-ccw/sclp.h from QEMU 5 * Copyright (c) 2013 Alexander Graf <agraf@suse.de> 6 * 7 * and based on the file include/hw/s390x/sclp.h from QEMU 8 * Copyright IBM, Corp. 2012 9 * Author: Christian Borntraeger <borntraeger@de.ibm.com> 10 * 11 * This work is licensed under the terms of the GNU GPL, version 2 or (at 12 * your option) any later version. See the COPYING file in the top-level 13 * directory. 14 */ 15 16 #ifndef SCLP_H 17 #define SCLP_H 18 19 #define SCLP_CMD_CODE_MASK 0xffff00ff 20 21 /* SCLP command codes */ 22 #define SCLP_READ_CPU_INFO 0x00010001 23 #define SCLP_CMDW_READ_SCP_INFO 0x00020001 24 #define SCLP_CMDW_READ_SCP_INFO_FORCED 0x00120001 25 #define SCLP_READ_STORAGE_ELEMENT_INFO 0x00040001 26 #define SCLP_ATTACH_STORAGE_ELEMENT 0x00080001 27 #define SCLP_ASSIGN_STORAGE 0x000D0001 28 #define SCLP_CMD_READ_EVENT_DATA 0x00770005 29 #define SCLP_CMD_WRITE_EVENT_DATA 0x00760005 30 #define SCLP_CMD_WRITE_EVENT_MASK 0x00780005 31 32 /* SCLP Memory hotplug codes */ 33 #define SCLP_FC_ASSIGN_ATTACH_READ_STOR 0xE00000000000ULL 34 #define SCLP_STARTING_SUBINCREMENT_ID 0x10001 35 #define SCLP_INCREMENT_UNIT 0x10000 36 #define MAX_AVAIL_SLOTS 32 37 #define MAX_STORAGE_INCREMENTS 1020 38 39 /* CPU hotplug SCLP codes */ 40 #define SCLP_HAS_CPU_INFO 0x0C00000000000000ULL 41 #define SCLP_CMDW_READ_CPU_INFO 0x00010001 42 #define SCLP_CMDW_CONFIGURE_CPU 0x00110001 43 #define SCLP_CMDW_DECONFIGURE_CPU 0x00100001 44 45 /* SCLP PCI codes */ 46 #define SCLP_HAS_IOA_RECONFIG 0x0000000040000000ULL 47 #define SCLP_CMDW_CONFIGURE_IOA 0x001a0001 48 #define SCLP_CMDW_DECONFIGURE_IOA 0x001b0001 49 #define SCLP_RECONFIG_PCI_ATYPE 2 50 51 /* SCLP response codes */ 52 #define SCLP_RC_NORMAL_READ_COMPLETION 0x0010 53 #define SCLP_RC_NORMAL_COMPLETION 0x0020 54 #define SCLP_RC_SCCB_BOUNDARY_VIOLATION 0x0100 55 #define SCLP_RC_NO_ACTION_REQUIRED 0x0120 56 #define SCLP_RC_INVALID_SCLP_COMMAND 0x01f0 57 #define SCLP_RC_CONTAINED_EQUIPMENT_CHECK 0x0340 58 #define SCLP_RC_INSUFFICIENT_SCCB_LENGTH 0x0300 59 #define SCLP_RC_STANDBY_READ_COMPLETION 0x0410 60 #define SCLP_RC_ADAPTER_IN_RESERVED_STATE 0x05f0 61 #define SCLP_RC_ADAPTER_TYPE_NOT_RECOGNIZED 0x06f0 62 #define SCLP_RC_ADAPTER_ID_NOT_RECOGNIZED 0x09f0 63 #define SCLP_RC_INVALID_FUNCTION 0x40f0 64 #define SCLP_RC_NO_EVENT_BUFFERS_STORED 0x60f0 65 #define SCLP_RC_INVALID_SELECTION_MASK 0x70f0 66 #define SCLP_RC_INCONSISTENT_LENGTHS 0x72f0 67 #define SCLP_RC_EVENT_BUFFER_SYNTAX_ERROR 0x73f0 68 #define SCLP_RC_INVALID_MASK_LENGTH 0x74f0 69 70 /* SCLP control mask bits */ 71 #define SCLP_CM2_VARIABLE_LENGTH_RESPONSE 0x80 72 73 /* SCLP function codes */ 74 #define SCLP_FC_NORMAL_WRITE 0 75 #define SCLP_FC_SINGLE_INCREMENT_ASSIGN 0x40 76 #define SCLP_FC_DUMP_INDICATOR 0x80 77 78 /* SCLP event buffer flags */ 79 #define SCLP_EVENT_BUFFER_ACCEPTED 0x80 80 81 /* Service Call Control Block (SCCB) and its elements */ 82 #define SCCB_SIZE 4096 83 84 typedef struct SCCBHeader { 85 uint16_t length; 86 uint8_t function_code; 87 uint8_t control_mask[3]; 88 uint16_t response_code; 89 } __attribute__((packed)) SCCBHeader; 90 91 #define SCCB_DATA_LEN (SCCB_SIZE - sizeof(SCCBHeader)) 92 #define SCCB_CPU_FEATURE_LEN 6 93 94 /* CPU information */ 95 typedef struct CPUEntry { 96 uint8_t address; 97 uint8_t reserved0; 98 uint8_t features[SCCB_CPU_FEATURE_LEN]; 99 uint8_t reserved2[6]; 100 uint8_t type; 101 uint8_t reserved1; 102 } __attribute__((packed)) CPUEntry; 103 104 typedef struct ReadInfo { 105 SCCBHeader h; 106 uint16_t rnmax; 107 uint8_t rnsize; 108 uint8_t _reserved1[16 - 11]; /* 11-15 */ 109 uint16_t entries_cpu; /* 16-17 */ 110 uint16_t offset_cpu; /* 18-19 */ 111 uint8_t _reserved2[24 - 20]; /* 20-23 */ 112 uint8_t loadparm[8]; /* 24-31 */ 113 uint8_t _reserved3[48 - 32]; /* 32-47 */ 114 uint64_t facilities; /* 48-55 */ 115 uint8_t _reserved0[76 - 56]; /* 56-75 */ 116 uint32_t ibc_val; 117 uint8_t conf_char[99 - 80]; /* 80-98 */ 118 uint8_t mha_pow; 119 uint32_t rnsize2; 120 uint64_t rnmax2; 121 uint8_t _reserved6[116 - 112]; /* 112-115 */ 122 uint8_t conf_char_ext[120 - 116]; /* 116-119 */ 123 uint16_t highest_cpu; 124 uint8_t _reserved5[124 - 122]; /* 122-123 */ 125 uint32_t hmfai; 126 struct CPUEntry entries[0]; 127 } __attribute__((packed)) ReadInfo; 128 129 typedef struct ReadCpuInfo { 130 SCCBHeader h; 131 uint16_t nr_configured; /* 8-9 */ 132 uint16_t offset_configured; /* 10-11 */ 133 uint16_t nr_standby; /* 12-13 */ 134 uint16_t offset_standby; /* 14-15 */ 135 uint8_t reserved0[24-16]; /* 16-23 */ 136 struct CPUEntry entries[0]; 137 } __attribute__((packed)) ReadCpuInfo; 138 139 typedef struct ReadStorageElementInfo { 140 SCCBHeader h; 141 uint16_t max_id; 142 uint16_t assigned; 143 uint16_t standby; 144 uint8_t _reserved0[16 - 14]; /* 14-15 */ 145 uint32_t entries[0]; 146 } __attribute__((packed)) ReadStorageElementInfo; 147 148 typedef struct AttachStorageElement { 149 SCCBHeader h; 150 uint8_t _reserved0[10 - 8]; /* 8-9 */ 151 uint16_t assigned; 152 uint8_t _reserved1[16 - 12]; /* 12-15 */ 153 uint32_t entries[0]; 154 } __attribute__((packed)) AttachStorageElement; 155 156 typedef struct AssignStorage { 157 SCCBHeader h; 158 uint16_t rn; 159 } __attribute__((packed)) AssignStorage; 160 161 typedef struct IoaCfgSccb { 162 SCCBHeader header; 163 uint8_t atype; 164 uint8_t reserved1; 165 uint16_t reserved2; 166 uint32_t aid; 167 } __attribute__((packed)) IoaCfgSccb; 168 169 typedef struct SCCB { 170 SCCBHeader h; 171 char data[SCCB_DATA_LEN]; 172 } __attribute__((packed)) SCCB; 173 174 /* SCLP event types */ 175 #define SCLP_EVENT_ASCII_CONSOLE_DATA 0x1a 176 #define SCLP_EVENT_SIGNAL_QUIESCE 0x1d 177 178 /* SCLP event masks */ 179 #define SCLP_EVENT_MASK_SIGNAL_QUIESCE 0x00000008 180 #define SCLP_EVENT_MASK_MSG_ASCII 0x00000040 181 #define SCLP_EVENT_MASK_MSG 0x40000000 182 183 #define SCLP_UNCONDITIONAL_READ 0x00 184 #define SCLP_SELECTIVE_READ 0x01 185 186 typedef struct WriteEventMask { 187 SCCBHeader h; 188 uint16_t _reserved; 189 uint16_t mask_length; 190 uint32_t cp_receive_mask; 191 uint32_t cp_send_mask; 192 uint32_t send_mask; 193 uint32_t receive_mask; 194 } __attribute__((packed)) WriteEventMask; 195 196 #define MDBTYP_GO 0x0001 197 #define MDBTYP_MTO 0x0004 198 #define EVTYP_MSG 0x02 199 #define LNTPFLGS_CNTLTEXT 0x8000 200 #define LNTPFLGS_LABELTEXT 0x4000 201 #define LNTPFLGS_DATATEXT 0x2000 202 #define LNTPFLGS_ENDTEXT 0x1000 203 #define LNTPFLGS_PROMPTTEXT 0x0800 204 205 typedef uint32_t sccb_mask_t; 206 207 /* SCLP line mode console related structures. */ 208 209 struct mto { 210 u16 length; 211 u16 type; 212 u16 line_type_flags; 213 u8 alarm_control; 214 u8 _reserved[3]; 215 } __attribute__((packed)); 216 217 struct go { 218 u16 length; 219 u16 type; 220 u32 domid; 221 u8 hhmmss_time[8]; 222 u8 th_time[3]; 223 u8 reserved_0; 224 u8 dddyyyy_date[7]; 225 u8 _reserved_1; 226 u16 general_msg_flags; 227 u8 _reserved_2[10]; 228 u8 originating_system_name[8]; 229 u8 job_guest_name[8]; 230 } __attribute__((packed)); 231 232 struct mdb_header { 233 u16 length; 234 u16 type; 235 u32 tag; 236 u32 revision_code; 237 } __attribute__((packed)); 238 239 struct mdb { 240 struct mdb_header header; 241 struct go go; 242 struct mto mto; 243 } __attribute__((packed)); 244 245 typedef struct EventBufferHeader { 246 uint16_t length; 247 uint8_t type; 248 uint8_t flags; 249 uint16_t _reserved; 250 } __attribute__((packed)) EventBufferHeader; 251 252 typedef struct WriteEventData { 253 SCCBHeader h; 254 EventBufferHeader ebh; 255 union { 256 char data[0]; 257 struct mdb mdb; 258 } msg; 259 } __attribute__((packed)) WriteEventData; 260 261 typedef struct ReadEventData { 262 SCCBHeader h; 263 EventBufferHeader ebh; 264 uint32_t mask; 265 } __attribute__((packed)) ReadEventData; 266 267 extern char _sccb[]; 268 void sclp_setup_int(void); 269 void sclp_handle_ext(void); 270 void sclp_wait_busy(void); 271 void sclp_mark_busy(void); 272 void sclp_console_setup(void); 273 void sclp_print(const char *str); 274 int sclp_service_call(unsigned int command, void *sccb); 275 void sclp_memory_setup(void); 276 uint64_t get_ram_size(void); 277 uint64_t get_max_ram_size(void); 278 279 #endif /* SCLP_H */ 280