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1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */2#ifndef __LINUX_KVM_S390_H3#define __LINUX_KVM_S390_H4/*5 * KVM s390 specific structures and definitions6 *7 * Copyright IBM Corp. 2008, 20188 *9 * Author(s): Carsten Otte <cotte@de.ibm.com>10 * Christian Borntraeger <borntraeger@de.ibm.com>11 */12#include <linux/types.h>13 14#define __KVM_S39015 16struct kvm_s390_skeys {17 __u64 start_gfn;18 __u64 count;19 __u64 skeydata_addr;20 __u32 flags;21 __u32 reserved[9];22};23 24#define KVM_S390_CMMA_PEEK (1 << 0)25 26/**27 * kvm_s390_cmma_log - Used for CMMA migration.28 *29 * Used both for input and output.30 *31 * @start_gfn: Guest page number to start from.32 * @count: Size of the result buffer.33 * @flags: Control operation mode via KVM_S390_CMMA_* flags34 * @remaining: Used with KVM_S390_GET_CMMA_BITS. Indicates how many dirty35 * pages are still remaining.36 * @mask: Used with KVM_S390_SET_CMMA_BITS. Bitmap of bits to actually set37 * in the PGSTE.38 * @values: Pointer to the values buffer.39 *40 * Used in KVM_S390_{G,S}ET_CMMA_BITS ioctls.41 */42struct kvm_s390_cmma_log {43 __u64 start_gfn;44 __u32 count;45 __u32 flags;46 union {47 __u64 remaining;48 __u64 mask;49 };50 __u64 values;51};52 53#define KVM_S390_RESET_POR 154#define KVM_S390_RESET_CLEAR 255#define KVM_S390_RESET_SUBSYSTEM 456#define KVM_S390_RESET_CPU_INIT 857#define KVM_S390_RESET_IPL 1658 59/* for KVM_S390_MEM_OP */60struct kvm_s390_mem_op {61 /* in */62 __u64 gaddr; /* the guest address */63 __u64 flags; /* flags */64 __u32 size; /* amount of bytes */65 __u32 op; /* type of operation */66 __u64 buf; /* buffer in userspace */67 union {68 struct {69 __u8 ar; /* the access register number */70 __u8 key; /* access key, ignored if flag unset */71 __u8 pad1[6]; /* ignored */72 __u64 old_addr; /* ignored if cmpxchg flag unset */73 };74 __u32 sida_offset; /* offset into the sida */75 __u8 reserved[32]; /* ignored */76 };77};78/* types for kvm_s390_mem_op->op */79#define KVM_S390_MEMOP_LOGICAL_READ 080#define KVM_S390_MEMOP_LOGICAL_WRITE 181#define KVM_S390_MEMOP_SIDA_READ 282#define KVM_S390_MEMOP_SIDA_WRITE 383#define KVM_S390_MEMOP_ABSOLUTE_READ 484#define KVM_S390_MEMOP_ABSOLUTE_WRITE 585#define KVM_S390_MEMOP_ABSOLUTE_CMPXCHG 686 87/* flags for kvm_s390_mem_op->flags */88#define KVM_S390_MEMOP_F_CHECK_ONLY (1ULL << 0)89#define KVM_S390_MEMOP_F_INJECT_EXCEPTION (1ULL << 1)90#define KVM_S390_MEMOP_F_SKEY_PROTECTION (1ULL << 2)91 92/* flags specifying extension support via KVM_CAP_S390_MEM_OP_EXTENSION */93#define KVM_S390_MEMOP_EXTENSION_CAP_BASE (1 << 0)94#define KVM_S390_MEMOP_EXTENSION_CAP_CMPXCHG (1 << 1)95 96struct kvm_s390_psw {97 __u64 mask;98 __u64 addr;99};100 101/* valid values for type in kvm_s390_interrupt */102#define KVM_S390_SIGP_STOP 0xfffe0000u103#define KVM_S390_PROGRAM_INT 0xfffe0001u104#define KVM_S390_SIGP_SET_PREFIX 0xfffe0002u105#define KVM_S390_RESTART 0xfffe0003u106#define KVM_S390_INT_PFAULT_INIT 0xfffe0004u107#define KVM_S390_INT_PFAULT_DONE 0xfffe0005u108#define KVM_S390_MCHK 0xfffe1000u109#define KVM_S390_INT_CLOCK_COMP 0xffff1004u110#define KVM_S390_INT_CPU_TIMER 0xffff1005u111#define KVM_S390_INT_VIRTIO 0xffff2603u112#define KVM_S390_INT_SERVICE 0xffff2401u113#define KVM_S390_INT_EMERGENCY 0xffff1201u114#define KVM_S390_INT_EXTERNAL_CALL 0xffff1202u115/* Anything below 0xfffe0000u is taken by INT_IO */116#define KVM_S390_INT_IO(ai,cssid,ssid,schid) \117 (((schid)) | \118 ((ssid) << 16) | \119 ((cssid) << 18) | \120 ((ai) << 26))121#define KVM_S390_INT_IO_MIN 0x00000000u122#define KVM_S390_INT_IO_MAX 0xfffdffffu123#define KVM_S390_INT_IO_AI_MASK 0x04000000u124 125 126struct kvm_s390_interrupt {127 __u32 type;128 __u32 parm;129 __u64 parm64;130};131 132struct kvm_s390_io_info {133 __u16 subchannel_id;134 __u16 subchannel_nr;135 __u32 io_int_parm;136 __u32 io_int_word;137};138 139struct kvm_s390_ext_info {140 __u32 ext_params;141 __u32 pad;142 __u64 ext_params2;143};144 145struct kvm_s390_pgm_info {146 __u64 trans_exc_code;147 __u64 mon_code;148 __u64 per_address;149 __u32 data_exc_code;150 __u16 code;151 __u16 mon_class_nr;152 __u8 per_code;153 __u8 per_atmid;154 __u8 exc_access_id;155 __u8 per_access_id;156 __u8 op_access_id;157#define KVM_S390_PGM_FLAGS_ILC_VALID 0x01158#define KVM_S390_PGM_FLAGS_ILC_0 0x02159#define KVM_S390_PGM_FLAGS_ILC_1 0x04160#define KVM_S390_PGM_FLAGS_ILC_MASK 0x06161#define KVM_S390_PGM_FLAGS_NO_REWIND 0x08162 __u8 flags;163 __u8 pad[2];164};165 166struct kvm_s390_prefix_info {167 __u32 address;168};169 170struct kvm_s390_extcall_info {171 __u16 code;172};173 174struct kvm_s390_emerg_info {175 __u16 code;176};177 178#define KVM_S390_STOP_FLAG_STORE_STATUS 0x01179struct kvm_s390_stop_info {180 __u32 flags;181};182 183struct kvm_s390_mchk_info {184 __u64 cr14;185 __u64 mcic;186 __u64 failing_storage_address;187 __u32 ext_damage_code;188 __u32 pad;189 __u8 fixed_logout[16];190};191 192struct kvm_s390_irq {193 __u64 type;194 union {195 struct kvm_s390_io_info io;196 struct kvm_s390_ext_info ext;197 struct kvm_s390_pgm_info pgm;198 struct kvm_s390_emerg_info emerg;199 struct kvm_s390_extcall_info extcall;200 struct kvm_s390_prefix_info prefix;201 struct kvm_s390_stop_info stop;202 struct kvm_s390_mchk_info mchk;203 char reserved[64];204 } u;205};206 207struct kvm_s390_irq_state {208 __u64 buf;209 __u32 flags; /* will stay unused for compatibility reasons */210 __u32 len;211 __u32 reserved[4]; /* will stay unused for compatibility reasons */212};213 214struct kvm_s390_ucas_mapping {215 __u64 user_addr;216 __u64 vcpu_addr;217 __u64 length;218};219 220struct kvm_s390_pv_sec_parm {221 __u64 origin;222 __u64 length;223};224 225struct kvm_s390_pv_unp {226 __u64 addr;227 __u64 size;228 __u64 tweak;229};230 231enum pv_cmd_dmp_id {232 KVM_PV_DUMP_INIT,233 KVM_PV_DUMP_CONFIG_STOR_STATE,234 KVM_PV_DUMP_COMPLETE,235 KVM_PV_DUMP_CPU,236};237 238struct kvm_s390_pv_dmp {239 __u64 subcmd;240 __u64 buff_addr;241 __u64 buff_len;242 __u64 gaddr; /* For dump storage state */243 __u64 reserved[4];244};245 246enum pv_cmd_info_id {247 KVM_PV_INFO_VM,248 KVM_PV_INFO_DUMP,249};250 251struct kvm_s390_pv_info_dump {252 __u64 dump_cpu_buffer_len;253 __u64 dump_config_mem_buffer_per_1m;254 __u64 dump_config_finalize_len;255};256 257struct kvm_s390_pv_info_vm {258 __u64 inst_calls_list[4];259 __u64 max_cpus;260 __u64 max_guests;261 __u64 max_guest_addr;262 __u64 feature_indication;263};264 265struct kvm_s390_pv_info_header {266 __u32 id;267 __u32 len_max;268 __u32 len_written;269 __u32 reserved;270};271 272struct kvm_s390_pv_info {273 struct kvm_s390_pv_info_header header;274 union {275 struct kvm_s390_pv_info_dump dump;276 struct kvm_s390_pv_info_vm vm;277 };278};279 280enum pv_cmd_id {281 KVM_PV_ENABLE,282 KVM_PV_DISABLE,283 KVM_PV_SET_SEC_PARMS,284 KVM_PV_UNPACK,285 KVM_PV_VERIFY,286 KVM_PV_PREP_RESET,287 KVM_PV_UNSHARE_ALL,288 KVM_PV_INFO,289 KVM_PV_DUMP,290 KVM_PV_ASYNC_CLEANUP_PREPARE,291 KVM_PV_ASYNC_CLEANUP_PERFORM,292};293 294struct kvm_pv_cmd {295 __u32 cmd; /* Command to be executed */296 __u16 rc; /* Ultravisor return code */297 __u16 rrc; /* Ultravisor return reason code */298 __u64 data; /* Data or address */299 __u32 flags; /* flags for future extensions. Must be 0 for now */300 __u32 reserved[3];301};302 303struct kvm_s390_zpci_op {304 /* in */305 __u32 fh; /* target device */306 __u8 op; /* operation to perform */307 __u8 pad[3];308 union {309 /* for KVM_S390_ZPCIOP_REG_AEN */310 struct {311 __u64 ibv; /* Guest addr of interrupt bit vector */312 __u64 sb; /* Guest addr of summary bit */313 __u32 flags;314 __u32 noi; /* Number of interrupts */315 __u8 isc; /* Guest interrupt subclass */316 __u8 sbo; /* Offset of guest summary bit vector */317 __u16 pad;318 } reg_aen;319 __u64 reserved[8];320 } u;321};322 323/* types for kvm_s390_zpci_op->op */324#define KVM_S390_ZPCIOP_REG_AEN 0325#define KVM_S390_ZPCIOP_DEREG_AEN 1326 327/* flags for kvm_s390_zpci_op->u.reg_aen.flags */328#define KVM_S390_ZPCIOP_REGAEN_HOST (1 << 0)329 330/* Device control API: s390-specific devices */331#define KVM_DEV_FLIC_GET_ALL_IRQS 1332#define KVM_DEV_FLIC_ENQUEUE 2333#define KVM_DEV_FLIC_CLEAR_IRQS 3334#define KVM_DEV_FLIC_APF_ENABLE 4335#define KVM_DEV_FLIC_APF_DISABLE_WAIT 5336#define KVM_DEV_FLIC_ADAPTER_REGISTER 6337#define KVM_DEV_FLIC_ADAPTER_MODIFY 7338#define KVM_DEV_FLIC_CLEAR_IO_IRQ 8339#define KVM_DEV_FLIC_AISM 9340#define KVM_DEV_FLIC_AIRQ_INJECT 10341#define KVM_DEV_FLIC_AISM_ALL 11342/*343 * We can have up to 4*64k pending subchannels + 8 adapter interrupts,344 * as well as up to ASYNC_PF_PER_VCPU*KVM_MAX_VCPUS pfault done interrupts.345 * There are also sclp and machine checks. This gives us346 * sizeof(kvm_s390_irq)*(4*65536+8+64*64+1+1) = 72 * 266250 = 19170000347 * Lets round up to 8192 pages.348 */349#define KVM_S390_MAX_FLOAT_IRQS 266250350#define KVM_S390_FLIC_MAX_BUFFER 0x2000000351 352struct kvm_s390_io_adapter {353 __u32 id;354 __u8 isc;355 __u8 maskable;356 __u8 swap;357 __u8 flags;358};359 360#define KVM_S390_ADAPTER_SUPPRESSIBLE 0x01361 362struct kvm_s390_ais_req {363 __u8 isc;364 __u16 mode;365};366 367struct kvm_s390_ais_all {368 __u8 simm;369 __u8 nimm;370};371 372#define KVM_S390_IO_ADAPTER_MASK 1373#define KVM_S390_IO_ADAPTER_MAP 2374#define KVM_S390_IO_ADAPTER_UNMAP 3375 376struct kvm_s390_io_adapter_req {377 __u32 id;378 __u8 type;379 __u8 mask;380 __u16 pad0;381 __u64 addr;382};383 384/* kvm attr_group on vm fd */385#define KVM_S390_VM_MEM_CTRL 0386#define KVM_S390_VM_TOD 1387#define KVM_S390_VM_CRYPTO 2388#define KVM_S390_VM_CPU_MODEL 3389#define KVM_S390_VM_MIGRATION 4390#define KVM_S390_VM_CPU_TOPOLOGY 5391 392/* kvm attributes for mem_ctrl */393#define KVM_S390_VM_MEM_ENABLE_CMMA 0394#define KVM_S390_VM_MEM_CLR_CMMA 1395#define KVM_S390_VM_MEM_LIMIT_SIZE 2396 397#define KVM_S390_NO_MEM_LIMIT U64_MAX398 399/* kvm attributes for KVM_S390_VM_TOD */400#define KVM_S390_VM_TOD_LOW 0401#define KVM_S390_VM_TOD_HIGH 1402#define KVM_S390_VM_TOD_EXT 2403 404struct kvm_s390_vm_tod_clock {405 __u8 epoch_idx;406 __u64 tod;407};408 409/* kvm attributes for KVM_S390_VM_CPU_MODEL */410/* processor related attributes are r/w */411#define KVM_S390_VM_CPU_PROCESSOR 0412struct kvm_s390_vm_cpu_processor {413 __u64 cpuid;414 __u16 ibc;415 __u8 pad[6];416 __u64 fac_list[256];417};418 419/* machine related attributes are r/o */420#define KVM_S390_VM_CPU_MACHINE 1421struct kvm_s390_vm_cpu_machine {422 __u64 cpuid;423 __u32 ibc;424 __u8 pad[4];425 __u64 fac_mask[256];426 __u64 fac_list[256];427};428 429#define KVM_S390_VM_CPU_PROCESSOR_FEAT 2430#define KVM_S390_VM_CPU_MACHINE_FEAT 3431 432#define KVM_S390_VM_CPU_FEAT_NR_BITS 1024433#define KVM_S390_VM_CPU_FEAT_ESOP 0434#define KVM_S390_VM_CPU_FEAT_SIEF2 1435#define KVM_S390_VM_CPU_FEAT_64BSCAO 2436#define KVM_S390_VM_CPU_FEAT_SIIF 3437#define KVM_S390_VM_CPU_FEAT_GPERE 4438#define KVM_S390_VM_CPU_FEAT_GSLS 5439#define KVM_S390_VM_CPU_FEAT_IB 6440#define KVM_S390_VM_CPU_FEAT_CEI 7441#define KVM_S390_VM_CPU_FEAT_IBS 8442#define KVM_S390_VM_CPU_FEAT_SKEY 9443#define KVM_S390_VM_CPU_FEAT_CMMA 10444#define KVM_S390_VM_CPU_FEAT_PFMFI 11445#define KVM_S390_VM_CPU_FEAT_SIGPIF 12446#define KVM_S390_VM_CPU_FEAT_KSS 13447struct kvm_s390_vm_cpu_feat {448 __u64 feat[16];449};450 451#define KVM_S390_VM_CPU_PROCESSOR_SUBFUNC 4452#define KVM_S390_VM_CPU_MACHINE_SUBFUNC 5453/* for "test bit" instructions MSB 0 bit ordering, for "query" raw blocks */454struct kvm_s390_vm_cpu_subfunc {455 __u8 plo[32]; /* always */456 __u8 ptff[16]; /* with TOD-clock steering */457 __u8 kmac[16]; /* with MSA */458 __u8 kmc[16]; /* with MSA */459 __u8 km[16]; /* with MSA */460 __u8 kimd[16]; /* with MSA */461 __u8 klmd[16]; /* with MSA */462 __u8 pckmo[16]; /* with MSA3 */463 __u8 kmctr[16]; /* with MSA4 */464 __u8 kmf[16]; /* with MSA4 */465 __u8 kmo[16]; /* with MSA4 */466 __u8 pcc[16]; /* with MSA4 */467 __u8 ppno[16]; /* with MSA5 */468 __u8 kma[16]; /* with MSA8 */469 __u8 kdsa[16]; /* with MSA9 */470 __u8 sortl[32]; /* with STFLE.150 */471 __u8 dfltcc[32]; /* with STFLE.151 */472 __u8 reserved[1728];473};474 475#define KVM_S390_VM_CPU_PROCESSOR_UV_FEAT_GUEST 6476#define KVM_S390_VM_CPU_MACHINE_UV_FEAT_GUEST 7477 478#define KVM_S390_VM_CPU_UV_FEAT_NR_BITS 64479struct kvm_s390_vm_cpu_uv_feat {480 union {481 struct {482 __u64 : 4;483 __u64 ap : 1; /* bit 4 */484 __u64 ap_intr : 1; /* bit 5 */485 __u64 : 58;486 };487 __u64 feat;488 };489};490 491/* kvm attributes for crypto */492#define KVM_S390_VM_CRYPTO_ENABLE_AES_KW 0493#define KVM_S390_VM_CRYPTO_ENABLE_DEA_KW 1494#define KVM_S390_VM_CRYPTO_DISABLE_AES_KW 2495#define KVM_S390_VM_CRYPTO_DISABLE_DEA_KW 3496#define KVM_S390_VM_CRYPTO_ENABLE_APIE 4497#define KVM_S390_VM_CRYPTO_DISABLE_APIE 5498 499/* kvm attributes for migration mode */500#define KVM_S390_VM_MIGRATION_STOP 0501#define KVM_S390_VM_MIGRATION_START 1502#define KVM_S390_VM_MIGRATION_STATUS 2503 504/* for KVM_GET_REGS and KVM_SET_REGS */505struct kvm_regs {506 /* general purpose regs for s390 */507 __u64 gprs[16];508};509 510/* for KVM_GET_SREGS and KVM_SET_SREGS */511struct kvm_sregs {512 __u32 acrs[16];513 __u64 crs[16];514};515 516/* for KVM_GET_FPU and KVM_SET_FPU */517struct kvm_fpu {518 __u32 fpc;519 __u64 fprs[16];520};521 522#define KVM_GUESTDBG_USE_HW_BP 0x00010000523 524#define KVM_HW_BP 1525#define KVM_HW_WP_WRITE 2526#define KVM_SINGLESTEP 4527 528struct kvm_debug_exit_arch {529 __u64 addr;530 __u8 type;531 __u8 pad[7]; /* Should be set to 0 */532};533 534struct kvm_hw_breakpoint {535 __u64 addr;536 __u64 phys_addr;537 __u64 len;538 __u8 type;539 __u8 pad[7]; /* Should be set to 0 */540};541 542/* for KVM_SET_GUEST_DEBUG */543struct kvm_guest_debug_arch {544 __u32 nr_hw_bp;545 __u32 pad; /* Should be set to 0 */546 struct kvm_hw_breakpoint __user *hw_bp;547};548 549/* for KVM_SYNC_PFAULT and KVM_REG_S390_PFTOKEN */550#define KVM_S390_PFAULT_TOKEN_INVALID 0xffffffffffffffffULL551 552#define KVM_SYNC_PREFIX (1UL << 0)553#define KVM_SYNC_GPRS (1UL << 1)554#define KVM_SYNC_ACRS (1UL << 2)555#define KVM_SYNC_CRS (1UL << 3)556#define KVM_SYNC_ARCH0 (1UL << 4)557#define KVM_SYNC_PFAULT (1UL << 5)558#define KVM_SYNC_VRS (1UL << 6)559#define KVM_SYNC_RICCB (1UL << 7)560#define KVM_SYNC_FPRS (1UL << 8)561#define KVM_SYNC_GSCB (1UL << 9)562#define KVM_SYNC_BPBC (1UL << 10)563#define KVM_SYNC_ETOKEN (1UL << 11)564#define KVM_SYNC_DIAG318 (1UL << 12)565 566#define KVM_SYNC_S390_VALID_FIELDS \567 (KVM_SYNC_PREFIX | KVM_SYNC_GPRS | KVM_SYNC_ACRS | KVM_SYNC_CRS | \568 KVM_SYNC_ARCH0 | KVM_SYNC_PFAULT | KVM_SYNC_VRS | KVM_SYNC_RICCB | \569 KVM_SYNC_FPRS | KVM_SYNC_GSCB | KVM_SYNC_BPBC | KVM_SYNC_ETOKEN | \570 KVM_SYNC_DIAG318)571 572/* length and alignment of the sdnx as a power of two */573#define SDNXC 8574#define SDNXL (1UL << SDNXC)575/* definition of registers in kvm_run */576struct kvm_sync_regs {577 __u64 prefix; /* prefix register */578 __u64 gprs[16]; /* general purpose registers */579 __u32 acrs[16]; /* access registers */580 __u64 crs[16]; /* control registers */581 __u64 todpr; /* tod programmable register [ARCH0] */582 __u64 cputm; /* cpu timer [ARCH0] */583 __u64 ckc; /* clock comparator [ARCH0] */584 __u64 pp; /* program parameter [ARCH0] */585 __u64 gbea; /* guest breaking-event address [ARCH0] */586 __u64 pft; /* pfault token [PFAULT] */587 __u64 pfs; /* pfault select [PFAULT] */588 __u64 pfc; /* pfault compare [PFAULT] */589 union {590 __u64 vrs[32][2]; /* vector registers (KVM_SYNC_VRS) */591 __u64 fprs[16]; /* fp registers (KVM_SYNC_FPRS) */592 };593 __u8 reserved[512]; /* for future vector expansion */594 __u32 fpc; /* valid on KVM_SYNC_VRS or KVM_SYNC_FPRS */595 __u8 bpbc : 1; /* bp mode */596 __u8 reserved2 : 7;597 __u8 padding1[51]; /* riccb needs to be 64byte aligned */598 __u8 riccb[64]; /* runtime instrumentation controls block */599 __u64 diag318; /* diagnose 0x318 info */600 __u8 padding2[184]; /* sdnx needs to be 256byte aligned */601 union {602 __u8 sdnx[SDNXL]; /* state description annex */603 struct {604 __u64 reserved1[2];605 __u64 gscb[4];606 __u64 etoken;607 __u64 etoken_extension;608 };609 };610};611 612#define KVM_REG_S390_TODPR (KVM_REG_S390 | KVM_REG_SIZE_U32 | 0x1)613#define KVM_REG_S390_EPOCHDIFF (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x2)614#define KVM_REG_S390_CPU_TIMER (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x3)615#define KVM_REG_S390_CLOCK_COMP (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x4)616#define KVM_REG_S390_PFTOKEN (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x5)617#define KVM_REG_S390_PFCOMPARE (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x6)618#define KVM_REG_S390_PFSELECT (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x7)619#define KVM_REG_S390_PP (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x8)620#define KVM_REG_S390_GBEA (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x9)621#endif622