uapi/asm/kvm.h

0001 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
0002 #ifndef __LINUX_KVM_S390_H
0003 #define __LINUX_KVM_S390_H
0004 /*
0005  * KVM s390 specific structures and definitions
0006  *
0007  * Copyright IBM Corp. 2008, 2018
0008  *
0009  *    Author(s): Carsten Otte <cotte@de.ibm.com>
0010  *               Christian Borntraeger <borntraeger@de.ibm.com>
0011  */
0012 #include <linux/types.h>
0013
0014 #define __KVM_S390
0015 #define __KVM_HAVE_GUEST_DEBUG
0016
0017 /* Device control API: s390-specific devices */
0018 #define KVM_DEV_FLIC_GET_ALL_IRQS   1
0019 #define KVM_DEV_FLIC_ENQUEUE        2
0020 #define KVM_DEV_FLIC_CLEAR_IRQS     3
0021 #define KVM_DEV_FLIC_APF_ENABLE     4
0022 #define KVM_DEV_FLIC_APF_DISABLE_WAIT   5
0023 #define KVM_DEV_FLIC_ADAPTER_REGISTER   6
0024 #define KVM_DEV_FLIC_ADAPTER_MODIFY 7
0025 #define KVM_DEV_FLIC_CLEAR_IO_IRQ   8
0026 #define KVM_DEV_FLIC_AISM       9
0027 #define KVM_DEV_FLIC_AIRQ_INJECT    10
0028 #define KVM_DEV_FLIC_AISM_ALL       11
0029 /*
0030  * We can have up to 4*64k pending subchannels + 8 adapter interrupts,
0031  * as well as up  to ASYNC_PF_PER_VCPU*KVM_MAX_VCPUS pfault done interrupts.
0032  * There are also sclp and machine checks. This gives us
0033  * sizeof(kvm_s390_irq)*(4*65536+8+64*64+1+1) = 72 * 266250 = 19170000
0034  * Lets round up to 8192 pages.
0035  */
0036 #define KVM_S390_MAX_FLOAT_IRQS 266250
0037 #define KVM_S390_FLIC_MAX_BUFFER    0x2000000
0038
0039 struct kvm_s390_io_adapter {
0040     __u32 id;
0041     __u8 isc;
0042     __u8 maskable;
0043     __u8 swap;
0044     __u8 flags;
0045 };
0046
0047 #define KVM_S390_ADAPTER_SUPPRESSIBLE 0x01
0048
0049 struct kvm_s390_ais_req {
0050     __u8 isc;
0051     __u16 mode;
0052 };
0053
0054 struct kvm_s390_ais_all {
0055     __u8 simm;
0056     __u8 nimm;
0057 };
0058
0059 #define KVM_S390_IO_ADAPTER_MASK 1
0060 #define KVM_S390_IO_ADAPTER_MAP 2
0061 #define KVM_S390_IO_ADAPTER_UNMAP 3
0062
0063 struct kvm_s390_io_adapter_req {
0064     __u32 id;
0065     __u8 type;
0066     __u8 mask;
0067     __u16 pad0;
0068     __u64 addr;
0069 };
0070
0071 /* kvm attr_group  on vm fd */
0072 #define KVM_S390_VM_MEM_CTRL        0
0073 #define KVM_S390_VM_TOD         1
0074 #define KVM_S390_VM_CRYPTO      2
0075 #define KVM_S390_VM_CPU_MODEL       3
0076 #define KVM_S390_VM_MIGRATION       4
0077 #define KVM_S390_VM_CPU_TOPOLOGY    5
0078
0079 /* kvm attributes for mem_ctrl */
0080 #define KVM_S390_VM_MEM_ENABLE_CMMA 0
0081 #define KVM_S390_VM_MEM_CLR_CMMA    1
0082 #define KVM_S390_VM_MEM_LIMIT_SIZE  2
0083
0084 #define KVM_S390_NO_MEM_LIMIT       U64_MAX
0085
0086 /* kvm attributes for KVM_S390_VM_TOD */
0087 #define KVM_S390_VM_TOD_LOW     0
0088 #define KVM_S390_VM_TOD_HIGH        1
0089 #define KVM_S390_VM_TOD_EXT     2
0090
0091 struct kvm_s390_vm_tod_clock {
0092     __u8  epoch_idx;
0093     __u64 tod;
0094 };
0095
0096 /* kvm attributes for KVM_S390_VM_CPU_MODEL */
0097 /* processor related attributes are r/w */
0098 #define KVM_S390_VM_CPU_PROCESSOR   0
0099 struct kvm_s390_vm_cpu_processor {
0100     __u64 cpuid;
0101     __u16 ibc;
0102     __u8  pad[6];
0103     __u64 fac_list[256];
0104 };
0105
0106 /* machine related attributes are r/o */
0107 #define KVM_S390_VM_CPU_MACHINE     1
0108 struct kvm_s390_vm_cpu_machine {
0109     __u64 cpuid;
0110     __u32 ibc;
0111     __u8  pad[4];
0112     __u64 fac_mask[256];
0113     __u64 fac_list[256];
0114 };
0115
0116 #define KVM_S390_VM_CPU_PROCESSOR_FEAT  2
0117 #define KVM_S390_VM_CPU_MACHINE_FEAT    3
0118
0119 #define KVM_S390_VM_CPU_FEAT_NR_BITS    1024
0120 #define KVM_S390_VM_CPU_FEAT_ESOP   0
0121 #define KVM_S390_VM_CPU_FEAT_SIEF2  1
0122 #define KVM_S390_VM_CPU_FEAT_64BSCAO    2
0123 #define KVM_S390_VM_CPU_FEAT_SIIF   3
0124 #define KVM_S390_VM_CPU_FEAT_GPERE  4
0125 #define KVM_S390_VM_CPU_FEAT_GSLS   5
0126 #define KVM_S390_VM_CPU_FEAT_IB     6
0127 #define KVM_S390_VM_CPU_FEAT_CEI    7
0128 #define KVM_S390_VM_CPU_FEAT_IBS    8
0129 #define KVM_S390_VM_CPU_FEAT_SKEY   9
0130 #define KVM_S390_VM_CPU_FEAT_CMMA   10
0131 #define KVM_S390_VM_CPU_FEAT_PFMFI  11
0132 #define KVM_S390_VM_CPU_FEAT_SIGPIF 12
0133 #define KVM_S390_VM_CPU_FEAT_KSS    13
0134 struct kvm_s390_vm_cpu_feat {
0135     __u64 feat[16];
0136 };
0137
0138 #define KVM_S390_VM_CPU_PROCESSOR_SUBFUNC   4
0139 #define KVM_S390_VM_CPU_MACHINE_SUBFUNC     5
0140 /* for "test bit" instructions MSB 0 bit ordering, for "query" raw blocks */
0141 struct kvm_s390_vm_cpu_subfunc {
0142     __u8 plo[32];       /* always */
0143     __u8 ptff[16];      /* with TOD-clock steering */
0144     __u8 kmac[16];      /* with MSA */
0145     __u8 kmc[16];       /* with MSA */
0146     __u8 km[16];        /* with MSA */
0147     __u8 kimd[16];      /* with MSA */
0148     __u8 klmd[16];      /* with MSA */
0149     __u8 pckmo[16];     /* with MSA3 */
0150     __u8 kmctr[16];     /* with MSA4 */
0151     __u8 kmf[16];       /* with MSA4 */
0152     __u8 kmo[16];       /* with MSA4 */
0153     __u8 pcc[16];       /* with MSA4 */
0154     __u8 ppno[16];      /* with MSA5 */
0155     __u8 kma[16];       /* with MSA8 */
0156     __u8 kdsa[16];      /* with MSA9 */
0157     __u8 sortl[32];     /* with STFLE.150 */
0158     __u8 dfltcc[32];    /* with STFLE.151 */
0159     __u8 reserved[1728];
0160 };
0161
0162 /* kvm attributes for crypto */
0163 #define KVM_S390_VM_CRYPTO_ENABLE_AES_KW    0
0164 #define KVM_S390_VM_CRYPTO_ENABLE_DEA_KW    1
0165 #define KVM_S390_VM_CRYPTO_DISABLE_AES_KW   2
0166 #define KVM_S390_VM_CRYPTO_DISABLE_DEA_KW   3
0167 #define KVM_S390_VM_CRYPTO_ENABLE_APIE      4
0168 #define KVM_S390_VM_CRYPTO_DISABLE_APIE     5
0169
0170 /* kvm attributes for migration mode */
0171 #define KVM_S390_VM_MIGRATION_STOP  0
0172 #define KVM_S390_VM_MIGRATION_START 1
0173 #define KVM_S390_VM_MIGRATION_STATUS    2
0174
0175 /* for KVM_GET_REGS and KVM_SET_REGS */
0176 struct kvm_regs {
0177     /* general purpose regs for s390 */
0178     __u64 gprs[16];
0179 };
0180
0181 /* for KVM_GET_SREGS and KVM_SET_SREGS */
0182 struct kvm_sregs {
0183     __u32 acrs[16];
0184     __u64 crs[16];
0185 };
0186
0187 /* for KVM_GET_FPU and KVM_SET_FPU */
0188 struct kvm_fpu {
0189     __u32 fpc;
0190     __u64 fprs[16];
0191 };
0192
0193 #define KVM_GUESTDBG_USE_HW_BP      0x00010000
0194
0195 #define KVM_HW_BP           1
0196 #define KVM_HW_WP_WRITE         2
0197 #define KVM_SINGLESTEP          4
0198
0199 struct kvm_debug_exit_arch {
0200     __u64 addr;
0201     __u8 type;
0202     __u8 pad[7]; /* Should be set to 0 */
0203 };
0204
0205 struct kvm_hw_breakpoint {
0206     __u64 addr;
0207     __u64 phys_addr;
0208     __u64 len;
0209     __u8 type;
0210     __u8 pad[7]; /* Should be set to 0 */
0211 };
0212
0213 /* for KVM_SET_GUEST_DEBUG */
0214 struct kvm_guest_debug_arch {
0215     __u32 nr_hw_bp;
0216     __u32 pad; /* Should be set to 0 */
0217     struct kvm_hw_breakpoint __user *hw_bp;
0218 };
0219
0220 /* for KVM_SYNC_PFAULT and KVM_REG_S390_PFTOKEN */
0221 #define KVM_S390_PFAULT_TOKEN_INVALID   0xffffffffffffffffULL
0222
0223 #define KVM_SYNC_PREFIX (1UL << 0)
0224 #define KVM_SYNC_GPRS   (1UL << 1)
0225 #define KVM_SYNC_ACRS   (1UL << 2)
0226 #define KVM_SYNC_CRS    (1UL << 3)
0227 #define KVM_SYNC_ARCH0  (1UL << 4)
0228 #define KVM_SYNC_PFAULT (1UL << 5)
0229 #define KVM_SYNC_VRS    (1UL << 6)
0230 #define KVM_SYNC_RICCB  (1UL << 7)
0231 #define KVM_SYNC_FPRS   (1UL << 8)
0232 #define KVM_SYNC_GSCB   (1UL << 9)
0233 #define KVM_SYNC_BPBC   (1UL << 10)
0234 #define KVM_SYNC_ETOKEN (1UL << 11)
0235 #define KVM_SYNC_DIAG318 (1UL << 12)
0236
0237 #define KVM_SYNC_S390_VALID_FIELDS \
0238     (KVM_SYNC_PREFIX | KVM_SYNC_GPRS | KVM_SYNC_ACRS | KVM_SYNC_CRS | \
0239      KVM_SYNC_ARCH0 | KVM_SYNC_PFAULT | KVM_SYNC_VRS | KVM_SYNC_RICCB | \
0240      KVM_SYNC_FPRS | KVM_SYNC_GSCB | KVM_SYNC_BPBC | KVM_SYNC_ETOKEN | \
0241      KVM_SYNC_DIAG318)
0242
0243 /* length and alignment of the sdnx as a power of two */
0244 #define SDNXC 8
0245 #define SDNXL (1UL << SDNXC)
0246 /* definition of registers in kvm_run */
0247 struct kvm_sync_regs {
0248     __u64 prefix;   /* prefix register */
0249     __u64 gprs[16]; /* general purpose registers */
0250     __u32 acrs[16]; /* access registers */
0251     __u64 crs[16];  /* control registers */
0252     __u64 todpr;    /* tod programmable register [ARCH0] */
0253     __u64 cputm;    /* cpu timer [ARCH0] */
0254     __u64 ckc;  /* clock comparator [ARCH0] */
0255     __u64 pp;   /* program parameter [ARCH0] */
0256     __u64 gbea; /* guest breaking-event address [ARCH0] */
0257     __u64 pft;  /* pfault token [PFAULT] */
0258     __u64 pfs;  /* pfault select [PFAULT] */
0259     __u64 pfc;  /* pfault compare [PFAULT] */
0260     union {
0261         __u64 vrs[32][2];   /* vector registers (KVM_SYNC_VRS) */
0262         __u64 fprs[16];     /* fp registers (KVM_SYNC_FPRS) */
0263     };
0264     __u8  reserved[512];    /* for future vector expansion */
0265     __u32 fpc;      /* valid on KVM_SYNC_VRS or KVM_SYNC_FPRS */
0266     __u8 bpbc : 1;      /* bp mode */
0267     __u8 reserved2 : 7;
0268     __u8 padding1[51];  /* riccb needs to be 64byte aligned */
0269     __u8 riccb[64];     /* runtime instrumentation controls block */
0270     __u64 diag318;      /* diagnose 0x318 info */
0271     __u8 padding2[184]; /* sdnx needs to be 256byte aligned */
0272     union {
0273         __u8 sdnx[SDNXL];  /* state description annex */
0274         struct {
0275             __u64 reserved1[2];
0276             __u64 gscb[4];
0277             __u64 etoken;
0278             __u64 etoken_extension;
0279         };
0280     };
0281 };
0282
0283 #define KVM_REG_S390_TODPR  (KVM_REG_S390 | KVM_REG_SIZE_U32 | 0x1)
0284 #define KVM_REG_S390_EPOCHDIFF  (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x2)
0285 #define KVM_REG_S390_CPU_TIMER  (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x3)
0286 #define KVM_REG_S390_CLOCK_COMP (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x4)
0287 #define KVM_REG_S390_PFTOKEN    (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x5)
0288 #define KVM_REG_S390_PFCOMPARE  (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x6)
0289 #define KVM_REG_S390_PFSELECT   (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x7)
0290 #define KVM_REG_S390_PP     (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x8)
0291 #define KVM_REG_S390_GBEA   (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x9)
0292 #endif