/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
#ifndef __LINUX_KVM_S390_H
#define __LINUX_KVM_S390_H
/*
* KVM s390 specific structures and definitions
*
* Copyright IBM Corp. 2008, 2018
*
* Author(s): Carsten Otte <[email protected]>
* Christian Borntraeger <[email protected]>
*/
#include <linux/types.h>
#define __KVM_S390
struct kvm_s390_skeys {
__u64 start_gfn;
__u64 count;
__u64 skeydata_addr;
__u32 flags;
__u32 reserved[9];
};
#define KVM_S390_CMMA_PEEK (1 << 0)
/**
* kvm_s390_cmma_log - Used for CMMA migration.
*
* Used both for input and output.
*
* @start_gfn: Guest page number to start from.
* @count: Size of the result buffer.
* @flags: Control operation mode via KVM_S390_CMMA_* flags
* @remaining: Used with KVM_S390_GET_CMMA_BITS. Indicates how many dirty
* pages are still remaining.
* @mask: Used with KVM_S390_SET_CMMA_BITS. Bitmap of bits to actually set
* in the PGSTE.
* @values: Pointer to the values buffer.
*
* Used in KVM_S390_{G,S}ET_CMMA_BITS ioctls.
*/
struct kvm_s390_cmma_log {
__u64 start_gfn;
__u32 count;
__u32 flags;
union {
__u64 remaining;
__u64 mask;
};
__u64 values;
};
#define KVM_S390_RESET_POR 1
#define KVM_S390_RESET_CLEAR 2
#define KVM_S390_RESET_SUBSYSTEM 4
#define KVM_S390_RESET_CPU_INIT 8
#define KVM_S390_RESET_IPL 16
/* for KVM_S390_MEM_OP */
struct kvm_s390_mem_op {
/* in */
__u64 gaddr; /* the guest address */
__u64 flags; /* flags */
__u32 size; /* amount of bytes */
__u32 op; /* type of operation */
__u64 buf; /* buffer in userspace */
union {
struct {
__u8 ar; /* the access register number */
__u8 key; /* access key, ignored if flag unset */
__u8 pad1[6]; /* ignored */
__u64 old_addr; /* ignored if cmpxchg flag unset */
};
__u32 sida_offset; /* offset into the sida */
__u8 reserved[32]; /* ignored */
};
};
/* types for kvm_s390_mem_op->op */
#define KVM_S390_MEMOP_LOGICAL_READ 0
#define KVM_S390_MEMOP_LOGICAL_WRITE 1
#define KVM_S390_MEMOP_SIDA_READ 2
#define KVM_S390_MEMOP_SIDA_WRITE 3
#define KVM_S390_MEMOP_ABSOLUTE_READ 4
#define KVM_S390_MEMOP_ABSOLUTE_WRITE 5
#define KVM_S390_MEMOP_ABSOLUTE_CMPXCHG 6
/* flags for kvm_s390_mem_op->flags */
#define KVM_S390_MEMOP_F_CHECK_ONLY (1ULL << 0)
#define KVM_S390_MEMOP_F_INJECT_EXCEPTION (1ULL << 1)
#define KVM_S390_MEMOP_F_SKEY_PROTECTION (1ULL << 2)
/* flags specifying extension support via KVM_CAP_S390_MEM_OP_EXTENSION */
#define KVM_S390_MEMOP_EXTENSION_CAP_BASE (1 << 0)
#define KVM_S390_MEMOP_EXTENSION_CAP_CMPXCHG (1 << 1)
struct kvm_s390_psw {
__u64 mask;
__u64 addr;
};
/* valid values for type in kvm_s390_interrupt */
#define KVM_S390_SIGP_STOP 0xfffe0000u
#define KVM_S390_PROGRAM_INT 0xfffe0001u
#define KVM_S390_SIGP_SET_PREFIX 0xfffe0002u
#define KVM_S390_RESTART 0xfffe0003u
#define KVM_S390_INT_PFAULT_INIT 0xfffe0004u
#define KVM_S390_INT_PFAULT_DONE 0xfffe0005u
#define KVM_S390_MCHK 0xfffe1000u
#define KVM_S390_INT_CLOCK_COMP 0xffff1004u
#define KVM_S390_INT_CPU_TIMER 0xffff1005u
#define KVM_S390_INT_VIRTIO 0xffff2603u
#define KVM_S390_INT_SERVICE 0xffff2401u
#define KVM_S390_INT_EMERGENCY 0xffff1201u
#define KVM_S390_INT_EXTERNAL_CALL 0xffff1202u
/* Anything below 0xfffe0000u is taken by INT_IO */
#define KVM_S390_INT_IO(ai,cssid,ssid,schid) \
(((schid)) | \
((ssid) << 16) | \
((cssid) << 18) | \
((ai) << 26))
#define KVM_S390_INT_IO_MIN 0x00000000u
#define KVM_S390_INT_IO_MAX 0xfffdffffu
#define KVM_S390_INT_IO_AI_MASK 0x04000000u
struct kvm_s390_interrupt {
__u32 type;
__u32 parm;
__u64 parm64;
};
struct kvm_s390_io_info {
__u16 subchannel_id;
__u16 subchannel_nr;
__u32 io_int_parm;
__u32 io_int_word;
};
struct kvm_s390_ext_info {
__u32 ext_params;
__u32 pad;
__u64 ext_params2;
};
struct kvm_s390_pgm_info {
__u64 trans_exc_code;
__u64 mon_code;
__u64 per_address;
__u32 data_exc_code;
__u16 code;
__u16 mon_class_nr;
__u8 per_code;
__u8 per_atmid;
__u8 exc_access_id;
__u8 per_access_id;
__u8 op_access_id;
#define KVM_S390_PGM_FLAGS_ILC_VALID 0x01
#define KVM_S390_PGM_FLAGS_ILC_0 0x02
#define KVM_S390_PGM_FLAGS_ILC_1 0x04
#define KVM_S390_PGM_FLAGS_ILC_MASK 0x06
#define KVM_S390_PGM_FLAGS_NO_REWIND 0x08
__u8 flags;
__u8 pad[2];
};
struct kvm_s390_prefix_info {
__u32 address;
};
struct kvm_s390_extcall_info {
__u16 code;
};
struct kvm_s390_emerg_info {
__u16 code;
};
#define KVM_S390_STOP_FLAG_STORE_STATUS 0x01
struct kvm_s390_stop_info {
__u32 flags;
};
struct kvm_s390_mchk_info {
__u64 cr14;
__u64 mcic;
__u64 failing_storage_address;
__u32 ext_damage_code;
__u32 pad;
__u8 fixed_logout[16];
};
struct kvm_s390_irq {
__u64 type;
union {
struct kvm_s390_io_info io;
struct kvm_s390_ext_info ext;
struct kvm_s390_pgm_info pgm;
struct kvm_s390_emerg_info emerg;
struct kvm_s390_extcall_info extcall;
struct kvm_s390_prefix_info prefix;
struct kvm_s390_stop_info stop;
struct kvm_s390_mchk_info mchk;
char reserved[64];
} u;
};
struct kvm_s390_irq_state {
__u64 buf;
__u32 flags; /* will stay unused for compatibility reasons */
__u32 len;
__u32 reserved[4]; /* will stay unused for compatibility reasons */
};
struct kvm_s390_ucas_mapping {
__u64 user_addr;
__u64 vcpu_addr;
__u64 length;
};
struct kvm_s390_pv_sec_parm {
__u64 origin;
__u64 length;
};
struct kvm_s390_pv_unp {
__u64 addr;
__u64 size;
__u64 tweak;
};
enum pv_cmd_dmp_id {
KVM_PV_DUMP_INIT,
KVM_PV_DUMP_CONFIG_STOR_STATE,
KVM_PV_DUMP_COMPLETE,
KVM_PV_DUMP_CPU,
};
struct kvm_s390_pv_dmp {
__u64 subcmd;
__u64 buff_addr;
__u64 buff_len;
__u64 gaddr; /* For dump storage state */
__u64 reserved[4];
};
enum pv_cmd_info_id {
KVM_PV_INFO_VM,
KVM_PV_INFO_DUMP,
};
struct kvm_s390_pv_info_dump {
__u64 dump_cpu_buffer_len;
__u64 dump_config_mem_buffer_per_1m;
__u64 dump_config_finalize_len;
};
struct kvm_s390_pv_info_vm {
__u64 inst_calls_list[4];
__u64 max_cpus;
__u64 max_guests;
__u64 max_guest_addr;
__u64 feature_indication;
};
struct kvm_s390_pv_info_header {
__u32 id;
__u32 len_max;
__u32 len_written;
__u32 reserved;
};
struct kvm_s390_pv_info {
struct kvm_s390_pv_info_header header;
union {
struct kvm_s390_pv_info_dump dump;
struct kvm_s390_pv_info_vm vm;
};
};
enum pv_cmd_id {
KVM_PV_ENABLE,
KVM_PV_DISABLE,
KVM_PV_SET_SEC_PARMS,
KVM_PV_UNPACK,
KVM_PV_VERIFY,
KVM_PV_PREP_RESET,
KVM_PV_UNSHARE_ALL,
KVM_PV_INFO,
KVM_PV_DUMP,
KVM_PV_ASYNC_CLEANUP_PREPARE,
KVM_PV_ASYNC_CLEANUP_PERFORM,
};
struct kvm_pv_cmd {
__u32 cmd; /* Command to be executed */
__u16 rc; /* Ultravisor return code */
__u16 rrc; /* Ultravisor return reason code */
__u64 data; /* Data or address */
__u32 flags; /* flags for future extensions. Must be 0 for now */
__u32 reserved[3];
};
struct kvm_s390_zpci_op {
/* in */
__u32 fh; /* target device */
__u8 op; /* operation to perform */
__u8 pad[3];
union {
/* for KVM_S390_ZPCIOP_REG_AEN */
struct {
__u64 ibv; /* Guest addr of interrupt bit vector */
__u64 sb; /* Guest addr of summary bit */
__u32 flags;
__u32 noi; /* Number of interrupts */
__u8 isc; /* Guest interrupt subclass */
__u8 sbo; /* Offset of guest summary bit vector */
__u16 pad;
} reg_aen;
__u64 reserved[8];
} u;
};
/* types for kvm_s390_zpci_op->op */
#define KVM_S390_ZPCIOP_REG_AEN 0
#define KVM_S390_ZPCIOP_DEREG_AEN 1
/* flags for kvm_s390_zpci_op->u.reg_aen.flags */
#define KVM_S390_ZPCIOP_REGAEN_HOST (1 << 0)
/* Device control API: s390-specific devices */
#define KVM_DEV_FLIC_GET_ALL_IRQS 1
#define KVM_DEV_FLIC_ENQUEUE 2
#define KVM_DEV_FLIC_CLEAR_IRQS 3
#define KVM_DEV_FLIC_APF_ENABLE 4
#define KVM_DEV_FLIC_APF_DISABLE_WAIT 5
#define KVM_DEV_FLIC_ADAPTER_REGISTER 6
#define KVM_DEV_FLIC_ADAPTER_MODIFY 7
#define KVM_DEV_FLIC_CLEAR_IO_IRQ 8
#define KVM_DEV_FLIC_AISM 9
#define KVM_DEV_FLIC_AIRQ_INJECT 10
#define KVM_DEV_FLIC_AISM_ALL 11
/*
* We can have up to 4*64k pending subchannels + 8 adapter interrupts,
* as well as up to ASYNC_PF_PER_VCPU*KVM_MAX_VCPUS pfault done interrupts.
* There are also sclp and machine checks. This gives us
* sizeof(kvm_s390_irq)*(4*65536+8+64*64+1+1) = 72 * 266250 = 19170000
* Lets round up to 8192 pages.
*/
#define KVM_S390_MAX_FLOAT_IRQS 266250
#define KVM_S390_FLIC_MAX_BUFFER 0x2000000
struct kvm_s390_io_adapter {
__u32 id;
__u8 isc;
__u8 maskable;
__u8 swap;
__u8 flags;
};
#define KVM_S390_ADAPTER_SUPPRESSIBLE 0x01
struct kvm_s390_ais_req {
__u8 isc;
__u16 mode;
};
struct kvm_s390_ais_all {
__u8 simm;
__u8 nimm;
};
#define KVM_S390_IO_ADAPTER_MASK 1
#define KVM_S390_IO_ADAPTER_MAP 2
#define KVM_S390_IO_ADAPTER_UNMAP 3
struct kvm_s390_io_adapter_req {
__u32 id;
__u8 type;
__u8 mask;
__u16 pad0;
__u64 addr;
};
/* kvm attr_group on vm fd */
#define KVM_S390_VM_MEM_CTRL 0
#define KVM_S390_VM_TOD 1
#define KVM_S390_VM_CRYPTO 2
#define KVM_S390_VM_CPU_MODEL 3
#define KVM_S390_VM_MIGRATION 4
#define KVM_S390_VM_CPU_TOPOLOGY 5
/* kvm attributes for mem_ctrl */
#define KVM_S390_VM_MEM_ENABLE_CMMA 0
#define KVM_S390_VM_MEM_CLR_CMMA 1
#define KVM_S390_VM_MEM_LIMIT_SIZE 2
#define KVM_S390_NO_MEM_LIMIT U64_MAX
/* kvm attributes for KVM_S390_VM_TOD */
#define KVM_S390_VM_TOD_LOW 0
#define KVM_S390_VM_TOD_HIGH 1
#define KVM_S390_VM_TOD_EXT 2
struct kvm_s390_vm_tod_clock {
__u8 epoch_idx;
__u64 tod;
};
/* kvm attributes for KVM_S390_VM_CPU_MODEL */
/* processor related attributes are r/w */
#define KVM_S390_VM_CPU_PROCESSOR 0
struct kvm_s390_vm_cpu_processor {
__u64 cpuid;
__u16 ibc;
__u8 pad[6];
__u64 fac_list[256];
};
/* machine related attributes are r/o */
#define KVM_S390_VM_CPU_MACHINE 1
struct kvm_s390_vm_cpu_machine {
__u64 cpuid;
__u32 ibc;
__u8 pad[4];
__u64 fac_mask[256];
__u64 fac_list[256];
};
#define KVM_S390_VM_CPU_PROCESSOR_FEAT 2
#define KVM_S390_VM_CPU_MACHINE_FEAT 3
#define KVM_S390_VM_CPU_FEAT_NR_BITS 1024
#define KVM_S390_VM_CPU_FEAT_ESOP 0
#define KVM_S390_VM_CPU_FEAT_SIEF2 1
#define KVM_S390_VM_CPU_FEAT_64BSCAO 2
#define KVM_S390_VM_CPU_FEAT_SIIF 3
#define KVM_S390_VM_CPU_FEAT_GPERE 4
#define KVM_S390_VM_CPU_FEAT_GSLS 5
#define KVM_S390_VM_CPU_FEAT_IB 6
#define KVM_S390_VM_CPU_FEAT_CEI 7
#define KVM_S390_VM_CPU_FEAT_IBS 8
#define KVM_S390_VM_CPU_FEAT_SKEY 9
#define KVM_S390_VM_CPU_FEAT_CMMA 10
#define KVM_S390_VM_CPU_FEAT_PFMFI 11
#define KVM_S390_VM_CPU_FEAT_SIGPIF 12
#define KVM_S390_VM_CPU_FEAT_KSS 13
struct kvm_s390_vm_cpu_feat {
__u64 feat[16];
};
#define KVM_S390_VM_CPU_PROCESSOR_SUBFUNC 4
#define KVM_S390_VM_CPU_MACHINE_SUBFUNC 5
/* for "test bit" instructions MSB 0 bit ordering, for "query" raw blocks */
struct kvm_s390_vm_cpu_subfunc {
__u8 plo[32]; /* always */
__u8 ptff[16]; /* with TOD-clock steering */
__u8 kmac[16]; /* with MSA */
__u8 kmc[16]; /* with MSA */
__u8 km[16]; /* with MSA */
__u8 kimd[16]; /* with MSA */
__u8 klmd[16]; /* with MSA */
__u8 pckmo[16]; /* with MSA3 */
__u8 kmctr[16]; /* with MSA4 */
__u8 kmf[16]; /* with MSA4 */
__u8 kmo[16]; /* with MSA4 */
__u8 pcc[16]; /* with MSA4 */
__u8 ppno[16]; /* with MSA5 */
__u8 kma[16]; /* with MSA8 */
__u8 kdsa[16]; /* with MSA9 */
__u8 sortl[32]; /* with STFLE.150 */
__u8 dfltcc[32]; /* with STFLE.151 */
__u8 reserved[1728];
};
#define KVM_S390_VM_CPU_PROCESSOR_UV_FEAT_GUEST 6
#define KVM_S390_VM_CPU_MACHINE_UV_FEAT_GUEST 7
#define KVM_S390_VM_CPU_UV_FEAT_NR_BITS 64
struct kvm_s390_vm_cpu_uv_feat {
union {
struct {
__u64 : 4;
__u64 ap : 1; /* bit 4 */
__u64 ap_intr : 1; /* bit 5 */
__u64 : 58;
};
__u64 feat;
};
};
/* kvm attributes for crypto */
#define KVM_S390_VM_CRYPTO_ENABLE_AES_KW 0
#define KVM_S390_VM_CRYPTO_ENABLE_DEA_KW 1
#define KVM_S390_VM_CRYPTO_DISABLE_AES_KW 2
#define KVM_S390_VM_CRYPTO_DISABLE_DEA_KW 3
#define KVM_S390_VM_CRYPTO_ENABLE_APIE 4
#define KVM_S390_VM_CRYPTO_DISABLE_APIE 5
/* kvm attributes for migration mode */
#define KVM_S390_VM_MIGRATION_STOP 0
#define KVM_S390_VM_MIGRATION_START 1
#define KVM_S390_VM_MIGRATION_STATUS 2
/* for KVM_GET_REGS and KVM_SET_REGS */
struct kvm_regs {
/* general purpose regs for s390 */
__u64 gprs[16];
};
/* for KVM_GET_SREGS and KVM_SET_SREGS */
struct kvm_sregs {
__u32 acrs[16];
__u64 crs[16];
};
/* for KVM_GET_FPU and KVM_SET_FPU */
struct kvm_fpu {
__u32 fpc;
__u64 fprs[16];
};
#define KVM_GUESTDBG_USE_HW_BP 0x00010000
#define KVM_HW_BP 1
#define KVM_HW_WP_WRITE 2
#define KVM_SINGLESTEP 4
struct kvm_debug_exit_arch {
__u64 addr;
__u8 type;
__u8 pad[7]; /* Should be set to 0 */
};
struct kvm_hw_breakpoint {
__u64 addr;
__u64 phys_addr;
__u64 len;
__u8 type;
__u8 pad[7]; /* Should be set to 0 */
};
/* for KVM_SET_GUEST_DEBUG */
struct kvm_guest_debug_arch {
__u32 nr_hw_bp;
__u32 pad; /* Should be set to 0 */
struct kvm_hw_breakpoint __user *hw_bp;
};
/* for KVM_SYNC_PFAULT and KVM_REG_S390_PFTOKEN */
#define KVM_S390_PFAULT_TOKEN_INVALID 0xffffffffffffffffULL
#define KVM_SYNC_PREFIX (1UL << 0)
#define KVM_SYNC_GPRS (1UL << 1)
#define KVM_SYNC_ACRS (1UL << 2)
#define KVM_SYNC_CRS (1UL << 3)
#define KVM_SYNC_ARCH0 (1UL << 4)
#define KVM_SYNC_PFAULT (1UL << 5)
#define KVM_SYNC_VRS (1UL << 6)
#define KVM_SYNC_RICCB (1UL << 7)
#define KVM_SYNC_FPRS (1UL << 8)
#define KVM_SYNC_GSCB (1UL << 9)
#define KVM_SYNC_BPBC (1UL << 10)
#define KVM_SYNC_ETOKEN (1UL << 11)
#define KVM_SYNC_DIAG318 (1UL << 12)
#define KVM_SYNC_S390_VALID_FIELDS \
(KVM_SYNC_PREFIX | KVM_SYNC_GPRS | KVM_SYNC_ACRS | KVM_SYNC_CRS | \
KVM_SYNC_ARCH0 | KVM_SYNC_PFAULT | KVM_SYNC_VRS | KVM_SYNC_RICCB | \
KVM_SYNC_FPRS | KVM_SYNC_GSCB | KVM_SYNC_BPBC | KVM_SYNC_ETOKEN | \
KVM_SYNC_DIAG318)
/* length and alignment of the sdnx as a power of two */
#define SDNXC 8
#define SDNXL (1UL << SDNXC)
/* definition of registers in kvm_run */
struct kvm_sync_regs {
__u64 prefix; /* prefix register */
__u64 gprs[16]; /* general purpose registers */
__u32 acrs[16]; /* access registers */
__u64 crs[16]; /* control registers */
__u64 todpr; /* tod programmable register [ARCH0] */
__u64 cputm; /* cpu timer [ARCH0] */
__u64 ckc; /* clock comparator [ARCH0] */
__u64 pp; /* program parameter [ARCH0] */
__u64 gbea; /* guest breaking-event address [ARCH0] */
__u64 pft; /* pfault token [PFAULT] */
__u64 pfs; /* pfault select [PFAULT] */
__u64 pfc; /* pfault compare [PFAULT] */
union {
__u64 vrs[32][2]; /* vector registers (KVM_SYNC_VRS) */
__u64 fprs[16]; /* fp registers (KVM_SYNC_FPRS) */
};
__u8 reserved[512]; /* for future vector expansion */
__u32 fpc; /* valid on KVM_SYNC_VRS or KVM_SYNC_FPRS */
__u8 bpbc : 1; /* bp mode */
__u8 reserved2 : 7;
__u8 padding1[51]; /* riccb needs to be 64byte aligned */
__u8 riccb[64]; /* runtime instrumentation controls block */
__u64 diag318; /* diagnose 0x318 info */
__u8 padding2[184]; /* sdnx needs to be 256byte aligned */
union {
__u8 sdnx[SDNXL]; /* state description annex */
struct {
__u64 reserved1[2];
__u64 gscb[4];
__u64 etoken;
__u64 etoken_extension;
};
};
};
#define KVM_REG_S390_TODPR (KVM_REG_S390 | KVM_REG_SIZE_U32 | 0x1)
#define KVM_REG_S390_EPOCHDIFF (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x2)
#define KVM_REG_S390_CPU_TIMER (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x3)
#define KVM_REG_S390_CLOCK_COMP (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x4)
#define KVM_REG_S390_PFTOKEN (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x5)
#define KVM_REG_S390_PFCOMPARE (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x6)
#define KVM_REG_S390_PFSELECT (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x7)
#define KVM_REG_S390_PP (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x8)
#define KVM_REG_S390_GBEA (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x9)
#endif
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