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