linux/tools/arch/arm64/include/uapi/asm/kvm.h
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   1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
   2/*
   3 * Copyright (C) 2012,2013 - ARM Ltd
   4 * Author: Marc Zyngier <marc.zyngier@arm.com>
   5 *
   6 * Derived from arch/arm/include/uapi/asm/kvm.h:
   7 * Copyright (C) 2012 - Virtual Open Systems and Columbia University
   8 * Author: Christoffer Dall <c.dall@virtualopensystems.com>
   9 *
  10 * This program is free software; you can redistribute it and/or modify
  11 * it under the terms of the GNU General Public License version 2 as
  12 * published by the Free Software Foundation.
  13 *
  14 * This program is distributed in the hope that it will be useful,
  15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17 * GNU General Public License for more details.
  18 *
  19 * You should have received a copy of the GNU General Public License
  20 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  21 */
  22
  23#ifndef __ARM_KVM_H__
  24#define __ARM_KVM_H__
  25
  26#define KVM_SPSR_EL1    0
  27#define KVM_SPSR_SVC    KVM_SPSR_EL1
  28#define KVM_SPSR_ABT    1
  29#define KVM_SPSR_UND    2
  30#define KVM_SPSR_IRQ    3
  31#define KVM_SPSR_FIQ    4
  32#define KVM_NR_SPSR     5
  33
  34#ifndef __ASSEMBLY__
  35#include <linux/psci.h>
  36#include <linux/types.h>
  37#include <asm/ptrace.h>
  38#include <asm/sve_context.h>
  39
  40#define __KVM_HAVE_GUEST_DEBUG
  41#define __KVM_HAVE_IRQ_LINE
  42#define __KVM_HAVE_READONLY_MEM
  43#define __KVM_HAVE_VCPU_EVENTS
  44
  45#define KVM_COALESCED_MMIO_PAGE_OFFSET 1
  46
  47#define KVM_REG_SIZE(id)                                                \
  48        (1U << (((id) & KVM_REG_SIZE_MASK) >> KVM_REG_SIZE_SHIFT))
  49
  50struct kvm_regs {
  51        struct user_pt_regs regs;       /* sp = sp_el0 */
  52
  53        __u64   sp_el1;
  54        __u64   elr_el1;
  55
  56        __u64   spsr[KVM_NR_SPSR];
  57
  58        struct user_fpsimd_state fp_regs;
  59};
  60
  61/*
  62 * Supported CPU Targets - Adding a new target type is not recommended,
  63 * unless there are some special registers not supported by the
  64 * genericv8 syreg table.
  65 */
  66#define KVM_ARM_TARGET_AEM_V8           0
  67#define KVM_ARM_TARGET_FOUNDATION_V8    1
  68#define KVM_ARM_TARGET_CORTEX_A57       2
  69#define KVM_ARM_TARGET_XGENE_POTENZA    3
  70#define KVM_ARM_TARGET_CORTEX_A53       4
  71/* Generic ARM v8 target */
  72#define KVM_ARM_TARGET_GENERIC_V8       5
  73
  74#define KVM_ARM_NUM_TARGETS             6
  75
  76/* KVM_ARM_SET_DEVICE_ADDR ioctl id encoding */
  77#define KVM_ARM_DEVICE_TYPE_SHIFT       0
  78#define KVM_ARM_DEVICE_TYPE_MASK        (0xffff << KVM_ARM_DEVICE_TYPE_SHIFT)
  79#define KVM_ARM_DEVICE_ID_SHIFT         16
  80#define KVM_ARM_DEVICE_ID_MASK          (0xffff << KVM_ARM_DEVICE_ID_SHIFT)
  81
  82/* Supported device IDs */
  83#define KVM_ARM_DEVICE_VGIC_V2          0
  84
  85/* Supported VGIC address types  */
  86#define KVM_VGIC_V2_ADDR_TYPE_DIST      0
  87#define KVM_VGIC_V2_ADDR_TYPE_CPU       1
  88
  89#define KVM_VGIC_V2_DIST_SIZE           0x1000
  90#define KVM_VGIC_V2_CPU_SIZE            0x2000
  91
  92/* Supported VGICv3 address types  */
  93#define KVM_VGIC_V3_ADDR_TYPE_DIST      2
  94#define KVM_VGIC_V3_ADDR_TYPE_REDIST    3
  95#define KVM_VGIC_ITS_ADDR_TYPE          4
  96#define KVM_VGIC_V3_ADDR_TYPE_REDIST_REGION     5
  97
  98#define KVM_VGIC_V3_DIST_SIZE           SZ_64K
  99#define KVM_VGIC_V3_REDIST_SIZE         (2 * SZ_64K)
 100#define KVM_VGIC_V3_ITS_SIZE            (2 * SZ_64K)
 101
 102#define KVM_ARM_VCPU_POWER_OFF          0 /* CPU is started in OFF state */
 103#define KVM_ARM_VCPU_EL1_32BIT          1 /* CPU running a 32bit VM */
 104#define KVM_ARM_VCPU_PSCI_0_2           2 /* CPU uses PSCI v0.2 */
 105#define KVM_ARM_VCPU_PMU_V3             3 /* Support guest PMUv3 */
 106#define KVM_ARM_VCPU_SVE                4 /* enable SVE for this CPU */
 107#define KVM_ARM_VCPU_PTRAUTH_ADDRESS    5 /* VCPU uses address authentication */
 108#define KVM_ARM_VCPU_PTRAUTH_GENERIC    6 /* VCPU uses generic authentication */
 109
 110struct kvm_vcpu_init {
 111        __u32 target;
 112        __u32 features[7];
 113};
 114
 115struct kvm_sregs {
 116};
 117
 118struct kvm_fpu {
 119};
 120
 121/*
 122 * See v8 ARM ARM D7.3: Debug Registers
 123 *
 124 * The architectural limit is 16 debug registers of each type although
 125 * in practice there are usually less (see ID_AA64DFR0_EL1).
 126 *
 127 * Although the control registers are architecturally defined as 32
 128 * bits wide we use a 64 bit structure here to keep parity with
 129 * KVM_GET/SET_ONE_REG behaviour which treats all system registers as
 130 * 64 bit values. It also allows for the possibility of the
 131 * architecture expanding the control registers without having to
 132 * change the userspace ABI.
 133 */
 134#define KVM_ARM_MAX_DBG_REGS 16
 135struct kvm_guest_debug_arch {
 136        __u64 dbg_bcr[KVM_ARM_MAX_DBG_REGS];
 137        __u64 dbg_bvr[KVM_ARM_MAX_DBG_REGS];
 138        __u64 dbg_wcr[KVM_ARM_MAX_DBG_REGS];
 139        __u64 dbg_wvr[KVM_ARM_MAX_DBG_REGS];
 140};
 141
 142#define KVM_DEBUG_ARCH_HSR_HIGH_VALID   (1 << 0)
 143struct kvm_debug_exit_arch {
 144        __u32 hsr;
 145        __u32 hsr_high; /* ESR_EL2[61:32] */
 146        __u64 far;      /* used for watchpoints */
 147};
 148
 149/*
 150 * Architecture specific defines for kvm_guest_debug->control
 151 */
 152
 153#define KVM_GUESTDBG_USE_SW_BP          (1 << 16)
 154#define KVM_GUESTDBG_USE_HW             (1 << 17)
 155
 156struct kvm_sync_regs {
 157        /* Used with KVM_CAP_ARM_USER_IRQ */
 158        __u64 device_irq_level;
 159};
 160
 161/*
 162 * PMU filter structure. Describe a range of events with a particular
 163 * action. To be used with KVM_ARM_VCPU_PMU_V3_FILTER.
 164 */
 165struct kvm_pmu_event_filter {
 166        __u16   base_event;
 167        __u16   nevents;
 168
 169#define KVM_PMU_EVENT_ALLOW     0
 170#define KVM_PMU_EVENT_DENY      1
 171
 172        __u8    action;
 173        __u8    pad[3];
 174};
 175
 176/* for KVM_GET/SET_VCPU_EVENTS */
 177struct kvm_vcpu_events {
 178        struct {
 179                __u8 serror_pending;
 180                __u8 serror_has_esr;
 181                __u8 ext_dabt_pending;
 182                /* Align it to 8 bytes */
 183                __u8 pad[5];
 184                __u64 serror_esr;
 185        } exception;
 186        __u32 reserved[12];
 187};
 188
 189struct kvm_arm_copy_mte_tags {
 190        __u64 guest_ipa;
 191        __u64 length;
 192        void __user *addr;
 193        __u64 flags;
 194        __u64 reserved[2];
 195};
 196
 197#define KVM_ARM_TAGS_TO_GUEST           0
 198#define KVM_ARM_TAGS_FROM_GUEST         1
 199
 200/* If you need to interpret the index values, here is the key: */
 201#define KVM_REG_ARM_COPROC_MASK         0x000000000FFF0000
 202#define KVM_REG_ARM_COPROC_SHIFT        16
 203
 204/* Normal registers are mapped as coprocessor 16. */
 205#define KVM_REG_ARM_CORE                (0x0010 << KVM_REG_ARM_COPROC_SHIFT)
 206#define KVM_REG_ARM_CORE_REG(name)      (offsetof(struct kvm_regs, name) / sizeof(__u32))
 207
 208/* Some registers need more space to represent values. */
 209#define KVM_REG_ARM_DEMUX               (0x0011 << KVM_REG_ARM_COPROC_SHIFT)
 210#define KVM_REG_ARM_DEMUX_ID_MASK       0x000000000000FF00
 211#define KVM_REG_ARM_DEMUX_ID_SHIFT      8
 212#define KVM_REG_ARM_DEMUX_ID_CCSIDR     (0x00 << KVM_REG_ARM_DEMUX_ID_SHIFT)
 213#define KVM_REG_ARM_DEMUX_VAL_MASK      0x00000000000000FF
 214#define KVM_REG_ARM_DEMUX_VAL_SHIFT     0
 215
 216/* AArch64 system registers */
 217#define KVM_REG_ARM64_SYSREG            (0x0013 << KVM_REG_ARM_COPROC_SHIFT)
 218#define KVM_REG_ARM64_SYSREG_OP0_MASK   0x000000000000c000
 219#define KVM_REG_ARM64_SYSREG_OP0_SHIFT  14
 220#define KVM_REG_ARM64_SYSREG_OP1_MASK   0x0000000000003800
 221#define KVM_REG_ARM64_SYSREG_OP1_SHIFT  11
 222#define KVM_REG_ARM64_SYSREG_CRN_MASK   0x0000000000000780
 223#define KVM_REG_ARM64_SYSREG_CRN_SHIFT  7
 224#define KVM_REG_ARM64_SYSREG_CRM_MASK   0x0000000000000078
 225#define KVM_REG_ARM64_SYSREG_CRM_SHIFT  3
 226#define KVM_REG_ARM64_SYSREG_OP2_MASK   0x0000000000000007
 227#define KVM_REG_ARM64_SYSREG_OP2_SHIFT  0
 228
 229#define ARM64_SYS_REG_SHIFT_MASK(x,n) \
 230        (((x) << KVM_REG_ARM64_SYSREG_ ## n ## _SHIFT) & \
 231        KVM_REG_ARM64_SYSREG_ ## n ## _MASK)
 232
 233#define __ARM64_SYS_REG(op0,op1,crn,crm,op2) \
 234        (KVM_REG_ARM64 | KVM_REG_ARM64_SYSREG | \
 235        ARM64_SYS_REG_SHIFT_MASK(op0, OP0) | \
 236        ARM64_SYS_REG_SHIFT_MASK(op1, OP1) | \
 237        ARM64_SYS_REG_SHIFT_MASK(crn, CRN) | \
 238        ARM64_SYS_REG_SHIFT_MASK(crm, CRM) | \
 239        ARM64_SYS_REG_SHIFT_MASK(op2, OP2))
 240
 241#define ARM64_SYS_REG(...) (__ARM64_SYS_REG(__VA_ARGS__) | KVM_REG_SIZE_U64)
 242
 243/* Physical Timer EL0 Registers */
 244#define KVM_REG_ARM_PTIMER_CTL          ARM64_SYS_REG(3, 3, 14, 2, 1)
 245#define KVM_REG_ARM_PTIMER_CVAL         ARM64_SYS_REG(3, 3, 14, 2, 2)
 246#define KVM_REG_ARM_PTIMER_CNT          ARM64_SYS_REG(3, 3, 14, 0, 1)
 247
 248/*
 249 * EL0 Virtual Timer Registers
 250 *
 251 * WARNING:
 252 *      KVM_REG_ARM_TIMER_CVAL and KVM_REG_ARM_TIMER_CNT are not defined
 253 *      with the appropriate register encodings.  Their values have been
 254 *      accidentally swapped.  As this is set API, the definitions here
 255 *      must be used, rather than ones derived from the encodings.
 256 */
 257#define KVM_REG_ARM_TIMER_CTL           ARM64_SYS_REG(3, 3, 14, 3, 1)
 258#define KVM_REG_ARM_TIMER_CVAL          ARM64_SYS_REG(3, 3, 14, 0, 2)
 259#define KVM_REG_ARM_TIMER_CNT           ARM64_SYS_REG(3, 3, 14, 3, 2)
 260
 261/* KVM-as-firmware specific pseudo-registers */
 262#define KVM_REG_ARM_FW                  (0x0014 << KVM_REG_ARM_COPROC_SHIFT)
 263#define KVM_REG_ARM_FW_REG(r)           (KVM_REG_ARM64 | KVM_REG_SIZE_U64 | \
 264                                         KVM_REG_ARM_FW | ((r) & 0xffff))
 265#define KVM_REG_ARM_PSCI_VERSION        KVM_REG_ARM_FW_REG(0)
 266#define KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_1     KVM_REG_ARM_FW_REG(1)
 267#define KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_1_NOT_AVAIL           0
 268#define KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_1_AVAIL               1
 269#define KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_1_NOT_REQUIRED        2
 270
 271/*
 272 * Only two states can be presented by the host kernel:
 273 * - NOT_REQUIRED: the guest doesn't need to do anything
 274 * - NOT_AVAIL: the guest isn't mitigated (it can still use SSBS if available)
 275 *
 276 * All the other values are deprecated. The host still accepts all
 277 * values (they are ABI), but will narrow them to the above two.
 278 */
 279#define KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_2     KVM_REG_ARM_FW_REG(2)
 280#define KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_2_NOT_AVAIL           0
 281#define KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_2_UNKNOWN             1
 282#define KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_2_AVAIL               2
 283#define KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_2_NOT_REQUIRED        3
 284#define KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_2_ENABLED             (1U << 4)
 285
 286#define KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_3     KVM_REG_ARM_FW_REG(3)
 287#define KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_3_NOT_AVAIL           0
 288#define KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_3_AVAIL               1
 289#define KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_3_NOT_REQUIRED        2
 290
 291/* SVE registers */
 292#define KVM_REG_ARM64_SVE               (0x15 << KVM_REG_ARM_COPROC_SHIFT)
 293
 294/* Z- and P-regs occupy blocks at the following offsets within this range: */
 295#define KVM_REG_ARM64_SVE_ZREG_BASE     0
 296#define KVM_REG_ARM64_SVE_PREG_BASE     0x400
 297#define KVM_REG_ARM64_SVE_FFR_BASE      0x600
 298
 299#define KVM_ARM64_SVE_NUM_ZREGS         __SVE_NUM_ZREGS
 300#define KVM_ARM64_SVE_NUM_PREGS         __SVE_NUM_PREGS
 301
 302#define KVM_ARM64_SVE_MAX_SLICES        32
 303
 304#define KVM_REG_ARM64_SVE_ZREG(n, i)                                    \
 305        (KVM_REG_ARM64 | KVM_REG_ARM64_SVE | KVM_REG_ARM64_SVE_ZREG_BASE | \
 306         KVM_REG_SIZE_U2048 |                                           \
 307         (((n) & (KVM_ARM64_SVE_NUM_ZREGS - 1)) << 5) |                 \
 308         ((i) & (KVM_ARM64_SVE_MAX_SLICES - 1)))
 309
 310#define KVM_REG_ARM64_SVE_PREG(n, i)                                    \
 311        (KVM_REG_ARM64 | KVM_REG_ARM64_SVE | KVM_REG_ARM64_SVE_PREG_BASE | \
 312         KVM_REG_SIZE_U256 |                                            \
 313         (((n) & (KVM_ARM64_SVE_NUM_PREGS - 1)) << 5) |                 \
 314         ((i) & (KVM_ARM64_SVE_MAX_SLICES - 1)))
 315
 316#define KVM_REG_ARM64_SVE_FFR(i)                                        \
 317        (KVM_REG_ARM64 | KVM_REG_ARM64_SVE | KVM_REG_ARM64_SVE_FFR_BASE | \
 318         KVM_REG_SIZE_U256 |                                            \
 319         ((i) & (KVM_ARM64_SVE_MAX_SLICES - 1)))
 320
 321/*
 322 * Register values for KVM_REG_ARM64_SVE_ZREG(), KVM_REG_ARM64_SVE_PREG() and
 323 * KVM_REG_ARM64_SVE_FFR() are represented in memory in an endianness-
 324 * invariant layout which differs from the layout used for the FPSIMD
 325 * V-registers on big-endian systems: see sigcontext.h for more explanation.
 326 */
 327
 328#define KVM_ARM64_SVE_VQ_MIN __SVE_VQ_MIN
 329#define KVM_ARM64_SVE_VQ_MAX __SVE_VQ_MAX
 330
 331/* Vector lengths pseudo-register: */
 332#define KVM_REG_ARM64_SVE_VLS           (KVM_REG_ARM64 | KVM_REG_ARM64_SVE | \
 333                                         KVM_REG_SIZE_U512 | 0xffff)
 334#define KVM_ARM64_SVE_VLS_WORDS \
 335        ((KVM_ARM64_SVE_VQ_MAX - KVM_ARM64_SVE_VQ_MIN) / 64 + 1)
 336
 337/* Bitmap feature firmware registers */
 338#define KVM_REG_ARM_FW_FEAT_BMAP                (0x0016 << KVM_REG_ARM_COPROC_SHIFT)
 339#define KVM_REG_ARM_FW_FEAT_BMAP_REG(r)         (KVM_REG_ARM64 | KVM_REG_SIZE_U64 | \
 340                                                KVM_REG_ARM_FW_FEAT_BMAP |      \
 341                                                ((r) & 0xffff))
 342
 343#define KVM_REG_ARM_STD_BMAP                    KVM_REG_ARM_FW_FEAT_BMAP_REG(0)
 344
 345enum {
 346        KVM_REG_ARM_STD_BIT_TRNG_V1_0   = 0,
 347#ifdef __KERNEL__
 348        KVM_REG_ARM_STD_BMAP_BIT_COUNT,
 349#endif
 350};
 351
 352#define KVM_REG_ARM_STD_HYP_BMAP                KVM_REG_ARM_FW_FEAT_BMAP_REG(1)
 353
 354enum {
 355        KVM_REG_ARM_STD_HYP_BIT_PV_TIME = 0,
 356#ifdef __KERNEL__
 357        KVM_REG_ARM_STD_HYP_BMAP_BIT_COUNT,
 358#endif
 359};
 360
 361#define KVM_REG_ARM_VENDOR_HYP_BMAP             KVM_REG_ARM_FW_FEAT_BMAP_REG(2)
 362
 363enum {
 364        KVM_REG_ARM_VENDOR_HYP_BIT_FUNC_FEAT    = 0,
 365        KVM_REG_ARM_VENDOR_HYP_BIT_PTP          = 1,
 366#ifdef __KERNEL__
 367        KVM_REG_ARM_VENDOR_HYP_BMAP_BIT_COUNT,
 368#endif
 369};
 370
 371/* Device Control API: ARM VGIC */
 372#define KVM_DEV_ARM_VGIC_GRP_ADDR       0
 373#define KVM_DEV_ARM_VGIC_GRP_DIST_REGS  1
 374#define KVM_DEV_ARM_VGIC_GRP_CPU_REGS   2
 375#define   KVM_DEV_ARM_VGIC_CPUID_SHIFT  32
 376#define   KVM_DEV_ARM_VGIC_CPUID_MASK   (0xffULL << KVM_DEV_ARM_VGIC_CPUID_SHIFT)
 377#define   KVM_DEV_ARM_VGIC_V3_MPIDR_SHIFT 32
 378#define   KVM_DEV_ARM_VGIC_V3_MPIDR_MASK \
 379                        (0xffffffffULL << KVM_DEV_ARM_VGIC_V3_MPIDR_SHIFT)
 380#define   KVM_DEV_ARM_VGIC_OFFSET_SHIFT 0
 381#define   KVM_DEV_ARM_VGIC_OFFSET_MASK  (0xffffffffULL << KVM_DEV_ARM_VGIC_OFFSET_SHIFT)
 382#define   KVM_DEV_ARM_VGIC_SYSREG_INSTR_MASK (0xffff)
 383#define KVM_DEV_ARM_VGIC_GRP_NR_IRQS    3
 384#define KVM_DEV_ARM_VGIC_GRP_CTRL       4
 385#define KVM_DEV_ARM_VGIC_GRP_REDIST_REGS 5
 386#define KVM_DEV_ARM_VGIC_GRP_CPU_SYSREGS 6
 387#define KVM_DEV_ARM_VGIC_GRP_LEVEL_INFO  7
 388#define KVM_DEV_ARM_VGIC_GRP_ITS_REGS 8
 389#define KVM_DEV_ARM_VGIC_LINE_LEVEL_INFO_SHIFT  10
 390#define KVM_DEV_ARM_VGIC_LINE_LEVEL_INFO_MASK \
 391                        (0x3fffffULL << KVM_DEV_ARM_VGIC_LINE_LEVEL_INFO_SHIFT)
 392#define KVM_DEV_ARM_VGIC_LINE_LEVEL_INTID_MASK  0x3ff
 393#define VGIC_LEVEL_INFO_LINE_LEVEL      0
 394
 395#define   KVM_DEV_ARM_VGIC_CTRL_INIT            0
 396#define   KVM_DEV_ARM_ITS_SAVE_TABLES           1
 397#define   KVM_DEV_ARM_ITS_RESTORE_TABLES        2
 398#define   KVM_DEV_ARM_VGIC_SAVE_PENDING_TABLES  3
 399#define   KVM_DEV_ARM_ITS_CTRL_RESET            4
 400
 401/* Device Control API on vcpu fd */
 402#define KVM_ARM_VCPU_PMU_V3_CTRL        0
 403#define   KVM_ARM_VCPU_PMU_V3_IRQ       0
 404#define   KVM_ARM_VCPU_PMU_V3_INIT      1
 405#define   KVM_ARM_VCPU_PMU_V3_FILTER    2
 406#define   KVM_ARM_VCPU_PMU_V3_SET_PMU   3
 407#define KVM_ARM_VCPU_TIMER_CTRL         1
 408#define   KVM_ARM_VCPU_TIMER_IRQ_VTIMER         0
 409#define   KVM_ARM_VCPU_TIMER_IRQ_PTIMER         1
 410#define KVM_ARM_VCPU_PVTIME_CTRL        2
 411#define   KVM_ARM_VCPU_PVTIME_IPA       0
 412
 413/* KVM_IRQ_LINE irq field index values */
 414#define KVM_ARM_IRQ_VCPU2_SHIFT         28
 415#define KVM_ARM_IRQ_VCPU2_MASK          0xf
 416#define KVM_ARM_IRQ_TYPE_SHIFT          24
 417#define KVM_ARM_IRQ_TYPE_MASK           0xf
 418#define KVM_ARM_IRQ_VCPU_SHIFT          16
 419#define KVM_ARM_IRQ_VCPU_MASK           0xff
 420#define KVM_ARM_IRQ_NUM_SHIFT           0
 421#define KVM_ARM_IRQ_NUM_MASK            0xffff
 422
 423/* irq_type field */
 424#define KVM_ARM_IRQ_TYPE_CPU            0
 425#define KVM_ARM_IRQ_TYPE_SPI            1
 426#define KVM_ARM_IRQ_TYPE_PPI            2
 427
 428/* out-of-kernel GIC cpu interrupt injection irq_number field */
 429#define KVM_ARM_IRQ_CPU_IRQ             0
 430#define KVM_ARM_IRQ_CPU_FIQ             1
 431
 432/*
 433 * This used to hold the highest supported SPI, but it is now obsolete
 434 * and only here to provide source code level compatibility with older
 435 * userland. The highest SPI number can be set via KVM_DEV_ARM_VGIC_GRP_NR_IRQS.
 436 */
 437#ifndef __KERNEL__
 438#define KVM_ARM_IRQ_GIC_MAX             127
 439#endif
 440
 441/* One single KVM irqchip, ie. the VGIC */
 442#define KVM_NR_IRQCHIPS          1
 443
 444/* PSCI interface */
 445#define KVM_PSCI_FN_BASE                0x95c1ba5e
 446#define KVM_PSCI_FN(n)                  (KVM_PSCI_FN_BASE + (n))
 447
 448#define KVM_PSCI_FN_CPU_SUSPEND         KVM_PSCI_FN(0)
 449#define KVM_PSCI_FN_CPU_OFF             KVM_PSCI_FN(1)
 450#define KVM_PSCI_FN_CPU_ON              KVM_PSCI_FN(2)
 451#define KVM_PSCI_FN_MIGRATE             KVM_PSCI_FN(3)
 452
 453#define KVM_PSCI_RET_SUCCESS            PSCI_RET_SUCCESS
 454#define KVM_PSCI_RET_NI                 PSCI_RET_NOT_SUPPORTED
 455#define KVM_PSCI_RET_INVAL              PSCI_RET_INVALID_PARAMS
 456#define KVM_PSCI_RET_DENIED             PSCI_RET_DENIED
 457
 458/* arm64-specific kvm_run::system_event flags */
 459/*
 460 * Reset caused by a PSCI v1.1 SYSTEM_RESET2 call.
 461 * Valid only when the system event has a type of KVM_SYSTEM_EVENT_RESET.
 462 */
 463#define KVM_SYSTEM_EVENT_RESET_FLAG_PSCI_RESET2 (1ULL << 0)
 464
 465/* run->fail_entry.hardware_entry_failure_reason codes. */
 466#define KVM_EXIT_FAIL_ENTRY_CPU_UNSUPPORTED     (1ULL << 0)
 467
 468#endif
 469
 470#endif /* __ARM_KVM_H__ */
 471