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dd873966 1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
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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__
b061808d 35#include <linux/psci.h>
fff02bc0 36#include <linux/types.h>
c5daeae1 37#include <asm/ptrace.h>
d9cb4336 38#include <asm/sve_context.h>
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39
40#define __KVM_HAVE_GUEST_DEBUG
41#define __KVM_HAVE_IRQ_LINE
444b1996 42#define __KVM_HAVE_READONLY_MEM
8f3cd250 43#define __KVM_HAVE_VCPU_EVENTS
c5daeae1 44
74c98e20 45#define KVM_COALESCED_MMIO_PAGE_OFFSET 1
93d7620c 46#define KVM_DIRTY_LOG_PAGE_OFFSET 64
74c98e20 47
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48#define KVM_REG_SIZE(id) \
49 (1U << (((id) & KVM_REG_SIZE_MASK) >> KVM_REG_SIZE_SHIFT))
50
51struct kvm_regs {
52 struct user_pt_regs regs; /* sp = sp_el0 */
53
54 __u64 sp_el1;
55 __u64 elr_el1;
56
57 __u64 spsr[KVM_NR_SPSR];
58
59 struct user_fpsimd_state fp_regs;
60};
61
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62/*
63 * Supported CPU Targets - Adding a new target type is not recommended,
64 * unless there are some special registers not supported by the
65 * genericv8 syreg table.
66 */
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67#define KVM_ARM_TARGET_AEM_V8 0
68#define KVM_ARM_TARGET_FOUNDATION_V8 1
69#define KVM_ARM_TARGET_CORTEX_A57 2
876074c2 70#define KVM_ARM_TARGET_XGENE_POTENZA 3
b061808d 71#define KVM_ARM_TARGET_CORTEX_A53 4
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PB
72/* Generic ARM v8 target */
73#define KVM_ARM_TARGET_GENERIC_V8 5
c5daeae1 74
3a824b15 75#define KVM_ARM_NUM_TARGETS 6
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76
77/* KVM_ARM_SET_DEVICE_ADDR ioctl id encoding */
78#define KVM_ARM_DEVICE_TYPE_SHIFT 0
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79#define KVM_ARM_DEVICE_TYPE_MASK GENMASK(KVM_ARM_DEVICE_TYPE_SHIFT + 15, \
80 KVM_ARM_DEVICE_TYPE_SHIFT)
c5daeae1 81#define KVM_ARM_DEVICE_ID_SHIFT 16
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82#define KVM_ARM_DEVICE_ID_MASK GENMASK(KVM_ARM_DEVICE_ID_SHIFT + 15, \
83 KVM_ARM_DEVICE_ID_SHIFT)
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84
85/* Supported device IDs */
86#define KVM_ARM_DEVICE_VGIC_V2 0
87
88/* Supported VGIC address types */
89#define KVM_VGIC_V2_ADDR_TYPE_DIST 0
90#define KVM_VGIC_V2_ADDR_TYPE_CPU 1
91
92#define KVM_VGIC_V2_DIST_SIZE 0x1000
93#define KVM_VGIC_V2_CPU_SIZE 0x2000
94
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95/* Supported VGICv3 address types */
96#define KVM_VGIC_V3_ADDR_TYPE_DIST 2
97#define KVM_VGIC_V3_ADDR_TYPE_REDIST 3
dbdfea92 98#define KVM_VGIC_ITS_ADDR_TYPE 4
77d361b1 99#define KVM_VGIC_V3_ADDR_TYPE_REDIST_REGION 5
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100
101#define KVM_VGIC_V3_DIST_SIZE SZ_64K
102#define KVM_VGIC_V3_REDIST_SIZE (2 * SZ_64K)
dbdfea92 103#define KVM_VGIC_V3_ITS_SIZE (2 * SZ_64K)
51628b18 104
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105#define KVM_ARM_VCPU_POWER_OFF 0 /* CPU is started in OFF state */
106#define KVM_ARM_VCPU_EL1_32BIT 1 /* CPU running a 32bit VM */
b061808d 107#define KVM_ARM_VCPU_PSCI_0_2 2 /* CPU uses PSCI v0.2 */
b89485a5 108#define KVM_ARM_VCPU_PMU_V3 3 /* Support guest PMUv3 */
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109#define KVM_ARM_VCPU_SVE 4 /* enable SVE for this CPU */
110#define KVM_ARM_VCPU_PTRAUTH_ADDRESS 5 /* VCPU uses address authentication */
111#define KVM_ARM_VCPU_PTRAUTH_GENERIC 6 /* VCPU uses generic authentication */
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112
113struct kvm_vcpu_init {
114 __u32 target;
115 __u32 features[7];
116};
117
118struct kvm_sregs {
119};
120
121struct kvm_fpu {
122};
123
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124/*
125 * See v8 ARM ARM D7.3: Debug Registers
126 *
127 * The architectural limit is 16 debug registers of each type although
128 * in practice there are usually less (see ID_AA64DFR0_EL1).
129 *
130 * Although the control registers are architecturally defined as 32
131 * bits wide we use a 64 bit structure here to keep parity with
132 * KVM_GET/SET_ONE_REG behaviour which treats all system registers as
133 * 64 bit values. It also allows for the possibility of the
134 * architecture expanding the control registers without having to
135 * change the userspace ABI.
136 */
137#define KVM_ARM_MAX_DBG_REGS 16
c5daeae1 138struct kvm_guest_debug_arch {
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139 __u64 dbg_bcr[KVM_ARM_MAX_DBG_REGS];
140 __u64 dbg_bvr[KVM_ARM_MAX_DBG_REGS];
141 __u64 dbg_wcr[KVM_ARM_MAX_DBG_REGS];
142 __u64 dbg_wvr[KVM_ARM_MAX_DBG_REGS];
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143};
144
d525f73f 145#define KVM_DEBUG_ARCH_HSR_HIGH_VALID (1 << 0)
c5daeae1 146struct kvm_debug_exit_arch {
3a824b15 147 __u32 hsr;
d525f73f 148 __u32 hsr_high; /* ESR_EL2[61:32] */
3a824b15 149 __u64 far; /* used for watchpoints */
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150};
151
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152/*
153 * Architecture specific defines for kvm_guest_debug->control
154 */
155
156#define KVM_GUESTDBG_USE_SW_BP (1 << 16)
157#define KVM_GUESTDBG_USE_HW (1 << 17)
158
c5daeae1 159struct kvm_sync_regs {
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CH
160 /* Used with KVM_CAP_ARM_USER_IRQ */
161 __u64 device_irq_level;
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162};
163
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164/*
165 * PMU filter structure. Describe a range of events with a particular
166 * action. To be used with KVM_ARM_VCPU_PMU_V3_FILTER.
167 */
168struct kvm_pmu_event_filter {
169 __u16 base_event;
170 __u16 nevents;
171
172#define KVM_PMU_EVENT_ALLOW 0
173#define KVM_PMU_EVENT_DENY 1
174
175 __u8 action;
176 __u8 pad[3];
177};
178
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CH
179/* for KVM_GET/SET_VCPU_EVENTS */
180struct kvm_vcpu_events {
181 struct {
182 __u8 serror_pending;
183 __u8 serror_has_esr;
2a886794 184 __u8 ext_dabt_pending;
8f3cd250 185 /* Align it to 8 bytes */
2a886794 186 __u8 pad[5];
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CH
187 __u64 serror_esr;
188 } exception;
189 __u32 reserved[12];
190};
191
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192struct kvm_arm_copy_mte_tags {
193 __u64 guest_ipa;
194 __u64 length;
195 void *addr;
196 __u64 flags;
197 __u64 reserved[2];
198};
199
200#define KVM_ARM_TAGS_TO_GUEST 0
201#define KVM_ARM_TAGS_FROM_GUEST 1
202
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203/* If you need to interpret the index values, here is the key: */
204#define KVM_REG_ARM_COPROC_MASK 0x000000000FFF0000
205#define KVM_REG_ARM_COPROC_SHIFT 16
206
207/* Normal registers are mapped as coprocessor 16. */
208#define KVM_REG_ARM_CORE (0x0010 << KVM_REG_ARM_COPROC_SHIFT)
209#define KVM_REG_ARM_CORE_REG(name) (offsetof(struct kvm_regs, name) / sizeof(__u32))
210
211/* Some registers need more space to represent values. */
212#define KVM_REG_ARM_DEMUX (0x0011 << KVM_REG_ARM_COPROC_SHIFT)
213#define KVM_REG_ARM_DEMUX_ID_MASK 0x000000000000FF00
214#define KVM_REG_ARM_DEMUX_ID_SHIFT 8
215#define KVM_REG_ARM_DEMUX_ID_CCSIDR (0x00 << KVM_REG_ARM_DEMUX_ID_SHIFT)
216#define KVM_REG_ARM_DEMUX_VAL_MASK 0x00000000000000FF
217#define KVM_REG_ARM_DEMUX_VAL_SHIFT 0
218
219/* AArch64 system registers */
220#define KVM_REG_ARM64_SYSREG (0x0013 << KVM_REG_ARM_COPROC_SHIFT)
221#define KVM_REG_ARM64_SYSREG_OP0_MASK 0x000000000000c000
222#define KVM_REG_ARM64_SYSREG_OP0_SHIFT 14
223#define KVM_REG_ARM64_SYSREG_OP1_MASK 0x0000000000003800
224#define KVM_REG_ARM64_SYSREG_OP1_SHIFT 11
225#define KVM_REG_ARM64_SYSREG_CRN_MASK 0x0000000000000780
226#define KVM_REG_ARM64_SYSREG_CRN_SHIFT 7
227#define KVM_REG_ARM64_SYSREG_CRM_MASK 0x0000000000000078
228#define KVM_REG_ARM64_SYSREG_CRM_SHIFT 3
229#define KVM_REG_ARM64_SYSREG_OP2_MASK 0x0000000000000007
230#define KVM_REG_ARM64_SYSREG_OP2_SHIFT 0
231
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232#define ARM64_SYS_REG_SHIFT_MASK(x,n) \
233 (((x) << KVM_REG_ARM64_SYSREG_ ## n ## _SHIFT) & \
234 KVM_REG_ARM64_SYSREG_ ## n ## _MASK)
235
236#define __ARM64_SYS_REG(op0,op1,crn,crm,op2) \
237 (KVM_REG_ARM64 | KVM_REG_ARM64_SYSREG | \
238 ARM64_SYS_REG_SHIFT_MASK(op0, OP0) | \
239 ARM64_SYS_REG_SHIFT_MASK(op1, OP1) | \
240 ARM64_SYS_REG_SHIFT_MASK(crn, CRN) | \
241 ARM64_SYS_REG_SHIFT_MASK(crm, CRM) | \
242 ARM64_SYS_REG_SHIFT_MASK(op2, OP2))
243
244#define ARM64_SYS_REG(...) (__ARM64_SYS_REG(__VA_ARGS__) | KVM_REG_SIZE_U64)
245
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246/* Physical Timer EL0 Registers */
247#define KVM_REG_ARM_PTIMER_CTL ARM64_SYS_REG(3, 3, 14, 2, 1)
248#define KVM_REG_ARM_PTIMER_CVAL ARM64_SYS_REG(3, 3, 14, 2, 2)
249#define KVM_REG_ARM_PTIMER_CNT ARM64_SYS_REG(3, 3, 14, 0, 1)
250
ddda3748
CH
251/*
252 * EL0 Virtual Timer Registers
253 *
254 * WARNING:
255 * KVM_REG_ARM_TIMER_CVAL and KVM_REG_ARM_TIMER_CNT are not defined
256 * with the appropriate register encodings. Their values have been
257 * accidentally swapped. As this is set API, the definitions here
258 * must be used, rather than ones derived from the encodings.
259 */
876074c2 260#define KVM_REG_ARM_TIMER_CTL ARM64_SYS_REG(3, 3, 14, 3, 1)
876074c2 261#define KVM_REG_ARM_TIMER_CVAL ARM64_SYS_REG(3, 3, 14, 0, 2)
ddda3748 262#define KVM_REG_ARM_TIMER_CNT ARM64_SYS_REG(3, 3, 14, 3, 2)
876074c2 263
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264/* KVM-as-firmware specific pseudo-registers */
265#define KVM_REG_ARM_FW (0x0014 << KVM_REG_ARM_COPROC_SHIFT)
266#define KVM_REG_ARM_FW_REG(r) (KVM_REG_ARM64 | KVM_REG_SIZE_U64 | \
267 KVM_REG_ARM_FW | ((r) & 0xffff))
268#define KVM_REG_ARM_PSCI_VERSION KVM_REG_ARM_FW_REG(0)
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269#define KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_1 KVM_REG_ARM_FW_REG(1)
270#define KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_1_NOT_AVAIL 0
271#define KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_1_AVAIL 1
272#define KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_1_NOT_REQUIRED 2
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273
274/*
275 * Only two states can be presented by the host kernel:
276 * - NOT_REQUIRED: the guest doesn't need to do anything
277 * - NOT_AVAIL: the guest isn't mitigated (it can still use SSBS if available)
278 *
279 * All the other values are deprecated. The host still accepts all
280 * values (they are ABI), but will narrow them to the above two.
281 */
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282#define KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_2 KVM_REG_ARM_FW_REG(2)
283#define KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_2_NOT_AVAIL 0
284#define KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_2_UNKNOWN 1
285#define KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_2_AVAIL 2
286#define KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_2_NOT_REQUIRED 3
287#define KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_2_ENABLED (1U << 4)
65a6d8dd 288
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289#define KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_3 KVM_REG_ARM_FW_REG(3)
290#define KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_3_NOT_AVAIL 0
291#define KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_3_AVAIL 1
292#define KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_3_NOT_REQUIRED 2
293
d9cb4336
CH
294/* SVE registers */
295#define KVM_REG_ARM64_SVE (0x15 << KVM_REG_ARM_COPROC_SHIFT)
296
297/* Z- and P-regs occupy blocks at the following offsets within this range: */
298#define KVM_REG_ARM64_SVE_ZREG_BASE 0
299#define KVM_REG_ARM64_SVE_PREG_BASE 0x400
300#define KVM_REG_ARM64_SVE_FFR_BASE 0x600
301
302#define KVM_ARM64_SVE_NUM_ZREGS __SVE_NUM_ZREGS
303#define KVM_ARM64_SVE_NUM_PREGS __SVE_NUM_PREGS
304
305#define KVM_ARM64_SVE_MAX_SLICES 32
306
307#define KVM_REG_ARM64_SVE_ZREG(n, i) \
308 (KVM_REG_ARM64 | KVM_REG_ARM64_SVE | KVM_REG_ARM64_SVE_ZREG_BASE | \
309 KVM_REG_SIZE_U2048 | \
310 (((n) & (KVM_ARM64_SVE_NUM_ZREGS - 1)) << 5) | \
311 ((i) & (KVM_ARM64_SVE_MAX_SLICES - 1)))
312
313#define KVM_REG_ARM64_SVE_PREG(n, i) \
314 (KVM_REG_ARM64 | KVM_REG_ARM64_SVE | KVM_REG_ARM64_SVE_PREG_BASE | \
315 KVM_REG_SIZE_U256 | \
316 (((n) & (KVM_ARM64_SVE_NUM_PREGS - 1)) << 5) | \
317 ((i) & (KVM_ARM64_SVE_MAX_SLICES - 1)))
318
319#define KVM_REG_ARM64_SVE_FFR(i) \
320 (KVM_REG_ARM64 | KVM_REG_ARM64_SVE | KVM_REG_ARM64_SVE_FFR_BASE | \
321 KVM_REG_SIZE_U256 | \
322 ((i) & (KVM_ARM64_SVE_MAX_SLICES - 1)))
323
f363d039
EA
324/*
325 * Register values for KVM_REG_ARM64_SVE_ZREG(), KVM_REG_ARM64_SVE_PREG() and
326 * KVM_REG_ARM64_SVE_FFR() are represented in memory in an endianness-
327 * invariant layout which differs from the layout used for the FPSIMD
328 * V-registers on big-endian systems: see sigcontext.h for more explanation.
329 */
330
d9cb4336
CH
331#define KVM_ARM64_SVE_VQ_MIN __SVE_VQ_MIN
332#define KVM_ARM64_SVE_VQ_MAX __SVE_VQ_MAX
333
334/* Vector lengths pseudo-register: */
335#define KVM_REG_ARM64_SVE_VLS (KVM_REG_ARM64 | KVM_REG_ARM64_SVE | \
336 KVM_REG_SIZE_U512 | 0xffff)
337#define KVM_ARM64_SVE_VLS_WORDS \
338 ((KVM_ARM64_SVE_VQ_MAX - KVM_ARM64_SVE_VQ_MIN) / 64 + 1)
339
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340/* Bitmap feature firmware registers */
341#define KVM_REG_ARM_FW_FEAT_BMAP (0x0016 << KVM_REG_ARM_COPROC_SHIFT)
342#define KVM_REG_ARM_FW_FEAT_BMAP_REG(r) (KVM_REG_ARM64 | KVM_REG_SIZE_U64 | \
343 KVM_REG_ARM_FW_FEAT_BMAP | \
344 ((r) & 0xffff))
345
346#define KVM_REG_ARM_STD_BMAP KVM_REG_ARM_FW_FEAT_BMAP_REG(0)
347
348enum {
349 KVM_REG_ARM_STD_BIT_TRNG_V1_0 = 0,
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};
357
358#define KVM_REG_ARM_VENDOR_HYP_BMAP KVM_REG_ARM_FW_FEAT_BMAP_REG(2)
359
360enum {
361 KVM_REG_ARM_VENDOR_HYP_BIT_FUNC_FEAT = 0,
362 KVM_REG_ARM_VENDOR_HYP_BIT_PTP = 1,
363};
364
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CD
365/* Device Control API: ARM VGIC */
366#define KVM_DEV_ARM_VGIC_GRP_ADDR 0
367#define KVM_DEV_ARM_VGIC_GRP_DIST_REGS 1
368#define KVM_DEV_ARM_VGIC_GRP_CPU_REGS 2
369#define KVM_DEV_ARM_VGIC_CPUID_SHIFT 32
370#define KVM_DEV_ARM_VGIC_CPUID_MASK (0xffULL << KVM_DEV_ARM_VGIC_CPUID_SHIFT)
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371#define KVM_DEV_ARM_VGIC_V3_MPIDR_SHIFT 32
372#define KVM_DEV_ARM_VGIC_V3_MPIDR_MASK \
373 (0xffffffffULL << KVM_DEV_ARM_VGIC_V3_MPIDR_SHIFT)
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CD
374#define KVM_DEV_ARM_VGIC_OFFSET_SHIFT 0
375#define KVM_DEV_ARM_VGIC_OFFSET_MASK (0xffffffffULL << KVM_DEV_ARM_VGIC_OFFSET_SHIFT)
3a5eb5b4 376#define KVM_DEV_ARM_VGIC_SYSREG_INSTR_MASK (0xffff)
444b1996 377#define KVM_DEV_ARM_VGIC_GRP_NR_IRQS 3
51628b18 378#define KVM_DEV_ARM_VGIC_GRP_CTRL 4
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PB
379#define KVM_DEV_ARM_VGIC_GRP_REDIST_REGS 5
380#define KVM_DEV_ARM_VGIC_GRP_CPU_SYSREGS 6
381#define KVM_DEV_ARM_VGIC_GRP_LEVEL_INFO 7
74c98e20 382#define KVM_DEV_ARM_VGIC_GRP_ITS_REGS 8
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383#define KVM_DEV_ARM_VGIC_LINE_LEVEL_INFO_SHIFT 10
384#define KVM_DEV_ARM_VGIC_LINE_LEVEL_INFO_MASK \
385 (0x3fffffULL << KVM_DEV_ARM_VGIC_LINE_LEVEL_INFO_SHIFT)
386#define KVM_DEV_ARM_VGIC_LINE_LEVEL_INTID_MASK 0x3ff
387#define VGIC_LEVEL_INFO_LINE_LEVEL 0
388
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CH
389#define KVM_DEV_ARM_VGIC_CTRL_INIT 0
390#define KVM_DEV_ARM_ITS_SAVE_TABLES 1
391#define KVM_DEV_ARM_ITS_RESTORE_TABLES 2
392#define KVM_DEV_ARM_VGIC_SAVE_PENDING_TABLES 3
dd873966 393#define KVM_DEV_ARM_ITS_CTRL_RESET 4
876074c2 394
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PB
395/* Device Control API on vcpu fd */
396#define KVM_ARM_VCPU_PMU_V3_CTRL 0
397#define KVM_ARM_VCPU_PMU_V3_IRQ 0
398#define KVM_ARM_VCPU_PMU_V3_INIT 1
53ba2eee 399#define KVM_ARM_VCPU_PMU_V3_FILTER 2
e4082063 400#define KVM_ARM_VCPU_PMU_V3_SET_PMU 3
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CB
401#define KVM_ARM_VCPU_TIMER_CTRL 1
402#define KVM_ARM_VCPU_TIMER_IRQ_VTIMER 0
403#define KVM_ARM_VCPU_TIMER_IRQ_PTIMER 1
2a886794
GK
404#define KVM_ARM_VCPU_PVTIME_CTRL 2
405#define KVM_ARM_VCPU_PVTIME_IPA 0
b89485a5 406
c5daeae1 407/* KVM_IRQ_LINE irq field index values */
f363d039
EA
408#define KVM_ARM_IRQ_VCPU2_SHIFT 28
409#define KVM_ARM_IRQ_VCPU2_MASK 0xf
c5daeae1 410#define KVM_ARM_IRQ_TYPE_SHIFT 24
f363d039 411#define KVM_ARM_IRQ_TYPE_MASK 0xf
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AK
412#define KVM_ARM_IRQ_VCPU_SHIFT 16
413#define KVM_ARM_IRQ_VCPU_MASK 0xff
414#define KVM_ARM_IRQ_NUM_SHIFT 0
415#define KVM_ARM_IRQ_NUM_MASK 0xffff
416
417/* irq_type field */
418#define KVM_ARM_IRQ_TYPE_CPU 0
419#define KVM_ARM_IRQ_TYPE_SPI 1
420#define KVM_ARM_IRQ_TYPE_PPI 2
421
422/* out-of-kernel GIC cpu interrupt injection irq_number field */
423#define KVM_ARM_IRQ_CPU_IRQ 0
424#define KVM_ARM_IRQ_CPU_FIQ 1
425
7a52ce8a
CH
426/*
427 * This used to hold the highest supported SPI, but it is now obsolete
428 * and only here to provide source code level compatibility with older
429 * userland. The highest SPI number can be set via KVM_DEV_ARM_VGIC_GRP_NR_IRQS.
430 */
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AK
431#define KVM_ARM_IRQ_GIC_MAX 127
432
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CH
433/* One single KVM irqchip, ie. the VGIC */
434#define KVM_NR_IRQCHIPS 1
435
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AK
436/* PSCI interface */
437#define KVM_PSCI_FN_BASE 0x95c1ba5e
438#define KVM_PSCI_FN(n) (KVM_PSCI_FN_BASE + (n))
439
440#define KVM_PSCI_FN_CPU_SUSPEND KVM_PSCI_FN(0)
441#define KVM_PSCI_FN_CPU_OFF KVM_PSCI_FN(1)
442#define KVM_PSCI_FN_CPU_ON KVM_PSCI_FN(2)
443#define KVM_PSCI_FN_MIGRATE KVM_PSCI_FN(3)
444
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AG
445#define KVM_PSCI_RET_SUCCESS PSCI_RET_SUCCESS
446#define KVM_PSCI_RET_NI PSCI_RET_NOT_SUPPORTED
447#define KVM_PSCI_RET_INVAL PSCI_RET_INVALID_PARAMS
448#define KVM_PSCI_RET_DENIED PSCI_RET_DENIED
c5daeae1 449
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450/* arm64-specific kvm_run::system_event flags */
451/*
452 * Reset caused by a PSCI v1.1 SYSTEM_RESET2 call.
453 * Valid only when the system event has a type of KVM_SYSTEM_EVENT_RESET.
454 */
455#define KVM_SYSTEM_EVENT_RESET_FLAG_PSCI_RESET2 (1ULL << 0)
456
457/* run->fail_entry.hardware_entry_failure_reason codes. */
458#define KVM_EXIT_FAIL_ENTRY_CPU_UNSUPPORTED (1ULL << 0)
459
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460#endif
461
462#endif /* __ARM_KVM_H__ */